: Renault Scenic - Faulty Coils Causing Warning Light(Including General Info)*fixed*

11th November 2006, 05:49 PM
I've a Scenic 1.4, 2001, 100K miles.
the exhaust gas monitoring light has come on. This is an indicator that looks like an engine. The manual says take it to a Renault dealer.
Has anyone any idea what this means? It sounds expensive...

11th November 2006, 09:26 PM
Same problem happen to me this morning,unfortunately on 30K,it sounds like it could be an air filter blockage ,not sure.

Please advise,any solution

12th November 2006, 08:05 AM
Same thing happened yesterday to my 1.6 petrol Scenic, 51 reg, 45000 miles.:mad:
Just filled up with petrol at the local Tesco's and got a couple of minutes down the road and started running like a bag of nails and warning light flashed. Thought it was a bad fill of petrol at first or even put wrong petrol in.
Been told it could be lamda sensor, oxygen sensor or a cat problem. Either way it needs to get checked on the computer to find out. I'll find out on Monday.

12th November 2006, 03:52 PM
lol,ditto to the above messages in my 1.6 petrol scenic auto 51 plate.34000 miles.virtually the same story.only had it a month.bought from an old couple who hardly drove it,showroom condition in and out.busy patting myself on the back for a good buy and this happens.my first renault and i love the car,just hope this is not a sign of things to come.

13th November 2006, 08:20 AM
Just wondered have you managed to resolve the problem,is it costly?

13th November 2006, 08:45 AM
it may be an ignition coil.

13th November 2006, 06:41 PM
just got call from garage he told me i need new set of coils.
apparently 2 are nailed,1 is nearlly nailed,and he reccomends i have the other done anyway.
Not a main dealer but renault specialist,been to him before always been honest enough with me.
oh cost of 238 in total,just what i need 6 weeks before christmas.

15th November 2006, 08:41 AM
I had the same problem,it' definetiley the ignition coil, i have got mine done yesterday one of the coil went wrong,it is now running perfect,cost me arount 70 pounds for one coil replacement.

17th November 2006, 12:08 PM
Well it was an faulty ignition coil that was wrong with my Scenic.
Think i'll buy one one of this company Ignition Coils (http://www.ignitioncoil.co.uk) to keep as a spare.£18.21 each with three year warranty and free next day delivery.

17th November 2006, 08:41 PM
No, I haven't solved it yet. A coil went a few weeks ago and I was worrying that I had damaged the cat. I am thinking it is maybe the lambda sensor and I'm going to replace it. It's running fine, which makes me think it's not a coil.
People who replaced the coils - were your cars running OK or were they running off a cylinder?

3rd January 2007, 09:33 PM
the light stayed on for a few weeks and I didn't do anything about it. Then another coil blew and when it was replaced - by magic the light went out.

So, those who said it was a coil: yes, you were right.

but why? the car was running fine. I assume the coil must have been failing intermittently, so mis-firing on the cylinder and so blowing petrol out the exhaust instead of burnt petrol hence lighting the light. However, I didn't notice any misfires.

I can't believe how unreliable those coils are.

10th January 2007, 06:28 PM

Can anyone tell me how easy it is to fit one. What do you have to take off and how do you diagnose which one has gone?

Had the car a year (1.4 petrol 2002) and this is the third one gone!

10th January 2007, 06:36 PM
They are very simple.

If you have the silver plastic cover over the top of the engine,pull the front edge up and slide it towards you to remove it.Then unplug the offending coil,undo the T30 Torx headed bolt and pull the coil upwards to release it.

Issa eassssayyy!:)

10th January 2007, 08:43 PM

Can anyone tell me how easy it is to fit one. What do you have to take off and how do you diagnose which one has gone?

Had the car a year (1.4 petrol 2002) and this is the third one gone!

To find out which one (actually they usually go in two's) just disconnect one at a time and see which one doesn't effect the running of the engine, and that will be the one.

Big problem with coils on these Renaults; all models seem to be suffering. It was suggested recently that the covers over the engine are cuasing them to overheat and fail. It has also been suggested that the cold weather is causing condensation to freeze on them and then stripping the insulation as they thaw out. Take your pick which to believe but it is irrelevant really.

Did the others go in cold weather too? When did they go? As it is over five years old it may be difficult to get RCS backup for replacements but if you have been replacing these throughout its life, you may be able to obtain a goodwill gesture from them on the basis that you were not informed of the existence of this known problem which Renault decided can be prevented by replacing ALL coils the first time the problem showed up. There were some bad batches of coils put on during the build. Worth talking to your dealership if the car has been properly maintained; ask them to approach RCS on your behalf. The answer will be no first time round (I'd bet my willy on that) but you then write to RCS at Renault.co.uk and hope they will look at it favourably.

Read up on the problem here on this forum... Lots of threads to read. Three in a year is a lot; do you know if the previous owner had the same problem at any time? Also, if Renault replaced any of these and they have gone again, you should not have to pay again as they should be warranted for 12 months.

If you give us some history, we might be able to advise.


10th January 2007, 10:52 PM
To test them,disconnect the injectors one at a time and not the coils.The coils are wired in pairs,so if you disconnect one it takes another one out too.(Hence the amount of people on the forum who have had two replaced at the same time,when one would have fixed it........):)

10th January 2007, 11:34 PM
To test them,disconnect the injectors one at a time and not the coils.The coils are wired in pairs,so if you disconnect one it takes another one out too.(Hence the amount of people on the forum who have had two replaced at the same time,when one would have fixed it........):)

That's handy to know. Thanks Lag. REA did tell me that they work in pairs but I didn't associate it with such a situation. Well spotted, bro.

5th April 2007, 05:56 PM
My 2000 Xreg 1.6 Scenic RXE Auto had its coils replaced about 2 years ago by the AA using genuine renault parts.
Driving home from work today on the M27 the car started to judder and loose power. I managed to get it home but I suspect its the coils starting to play up again.
I disconnected the leads to the coils one by one and engine stopped on 1, 3 & 4. Disconnecting No 2 made no difference to the lumpy engine.
I'm therefore assuming that No 2 coil is gone.
A quick phone around and I can pick up a new set of coils on Saturday at 29 +VAT each (geniune Renault parts) or 20 each for "aftermarket spares".
A couple of questions:
1. Do the coils just push onto the spark plugs?
2. Is it worth buying the more expensive renaulkt coils?
3. Should I change spark plugs as well?
Any help would be much appreciated

5th April 2007, 06:15 PM

1. Yes
2. IMO, no as its quite obvious that OE coils don't last, were never any good and can't believe Renault get away with the number of coil replacements people need on such a critical item. Its appalling the amount of failures people experience. They should be hanging their head in shame and giving them out free. It must be a huge cash generator for them. How much worse can anybody elses be? If buying a non OE part I always try to stick to brands I know i.e. lucas, Bosch etc...
3. There should be no need to change the plugs. Most garages just fit the coil and away you go. It you have the time, I don't think there is any harm in giving the plugs a look whilst your in there, but its not necessary.

My father in law does very little mileage and before his car had done 12000miles from new all the coils failed (out of warranty) one by one within a short time period of each other. He's recently had to replace a relacement which has only been in around 2 years and less than 8000 miles.

It would certainly put me off a petrol engine that uses these coils. My local garage (not a Renault dealer) actually keeps the coils in stock as they replace that many of them. It takes them only a few minutes to change a coil.

5th April 2007, 07:00 PM
I would at least change the plug on the cylinder that wasn't firing as it has been subjected to poor running conditions and is likely to fail shortly. If it were mine I would change all the plugs - that way, all are of the same vintage and condition.:)

5th April 2007, 07:10 PM
Yes,change the spark plugs.:)

No,don't bother with genuine Renault coils,buy some Beru aftermarket ones from a decent motor factor as they are many times more reliable then the Renault ones.

Yes,the coils are just pushed on to the spark plugs and are held with either a T30 torx headed bolt or a 10mm headed bolt.

Disconnecting the coils is not a way to find out which one is faulty as they are wired in pairs,but as your going to change all of them,it doesn't particularly matter.:)

7th April 2007, 01:43 PM
Thanks guys for all your help.
I finally located a set of Soveriegn coils from Mayday Auto Spares in Southampton - it being Easter weekend, everywhere was closed. I've now fitted the coils and all seems fine. I couldn't change the spark plugs as I didn't have a socket deep enough to fit down the hole. Do they use a special socket to change the plugs?

7th April 2007, 03:30 PM
Well Done John - you got it sorted. Yeh there is a special spark plug socket which has a rubber insert which helps hold the plug and also reduces the risk of damage. They are usually available as separate items and can be bought from most motor factors or maybe even your local Halfords. I don't know the size but as soon as I find out I'll post it up.:d

P.S. It should be a 14mm long reach spark plug socket or better still take a sample plug with you

25th September 2007, 08:10 PM
Had simular symptoms with mine. Ended up being the plugs as mr R never bothered to change them on the various services that he did. This was obvious as the plug on number 4 had rust markings 3/4 way up the plug, and no 3 at the base, probably from when it was first built as there have been no engine leaks since I'v had it (from new). Old plugs were so worn the electrode tips had gone pointy !!

5th October 2007, 09:34 AM
if you go to any motor factors they will sell you a coil for between 20 to 40 quid, they are really easy to replace, just a bit of patience as without a diagnostic you have to take off and replace each in turn till you find the right one....i have done all four of mine individually over the last two years and now carry a spare in the boot!

14th October 2007, 10:48 PM

Looking for suggestions for a fix an on going problem I'm having. I've got a 2001 1.4 16v Scenic which tends to loose power when pulling away in low gear or accelerating hard. I replaced 2 coils earlier in the year and the other two about six weeks ago and and checked the spark plugs too. Reading the forums I also changed the Top Dead Centre sensor too as I had previously had a problem starting it, I've even tried Injector cleaner too but the problems still there. There are no warning lights appearing but when you first start it you can hear it chugging with the lack of power. My gut instinct now is the injectors, would you all agree? and how easy are they to clean yourself?


15th October 2007, 03:02 PM
Hi John - have you gone through the usual checks to see if the engine is firing on all four cylinders. Are th symptoms wose when the engine is warm or cold:)

15th October 2007, 04:31 PM
Hi Thanks for the response.
According to the Mrs who drives the car its when its warm. I did not do any further checks to ensure that its firing on all four cyclinders as I replaced two coils earlier this year and my assumptiom was that it might be one of the last two coils despite no warning lights. I had them as spares as I had bought a full set so thought I had nothing to lose by fitting them. Am I right in thinking that if it was mis firing then the warning light would come on?


15th October 2007, 06:37 PM
Hi John - if you are satisfied the plugs and coils are OK - check the TDC sensor - if that is OK it could be a duff inlet temperature sensor. You could try some injector cleaner in a tank of fuel and see if it helps:)

15th October 2007, 07:22 PM

I have already replaced the TDC sensor and the injector cleaner in the tank so i'll take a look at the inlet temp sensor, is there any specific test that can be done. Is it just a thermistor that can be measured with a meter?


7th November 2007, 07:08 PM
After having Me Renault replace 5 coils I had a sixth go last weekend so I replaced the whole set myself last weekend at a cost of 38 for 4 bought on Ebay with 2 year g'tee. My question: if there is a chance it's the engine cover causing these to fail by causing them to overheat, is it worth leaving the cover off? What function does it serve? I did find that the two front lugs had been broken off so it's loose at the front anyway - Renault must have done that because they're the only ones who have worked on the car previously.

8th November 2007, 11:48 AM
Hi Lovr - don't quote me but I think Renault have done away with the cover on some of the later models:)

tom burton
8th November 2007, 04:21 PM
Hi Lovr - don't quote me but I think Renault have done away with the cover on some of the later models:)

My wife's 2000 Scenic 1.6 16V RXE had no plastic engine cover when new.

26th November 2007, 06:29 PM
Hi we had the same thing happen to us as we started the car one day after purchase, apparently just before we picked it up some idiot decided to pressure wash the car and as a result jetted water into the engine compartment.
One of the ignition coils blew and the performance of the car was notably affected. luck for us the car was still under warranty so it was back to the dealer (Carcraft) and they fixed in 20 - 30 minutes.
We did think of taking to a Renault dealer who said they wanted 85 just to look at it !!!!!!.:steam: :steam: :steam:
So when our car wants a service i suppose in three years time which gives us enough time to save up for a second mortgage some little erk at the front desk will be rubbing their hands together (Oil ):devil: .
I am a builder i cant wait for him to phone me for a quote on an extention.:rofl: :rofl: :rofl:

21st December 2007, 10:06 AM
I,m not meaning to brag but me thinks u got a bit ripped off mate. I just got 4 coils replaced in my 2004 SCENIC 1.4 for 135 all in. Coils r around 25 each and a piece of cake to fit. next time I'm doing it meself.

21st December 2007, 10:30 AM
hi mate well you got me there:o .
I know about buildings but cars elude me !!.
Thanks for the reply and have a merry Christmas.

21st December 2007, 02:38 PM
Hi Paperboy - were the coils you got fitted Renaults own brand or after-market type.:)

26th December 2007, 12:12 PM
Hi there

The coils were "Valeo" brand - doing the job nicely. The mechanic gave me the old ones as spares as it might be that only one might have blown.

Happy New Year!

13th February 2008, 07:43 PM
i had same prob. one of coils had gone
117 to have 1 coil supplied and fitted
my car has not done 18000 miles yet

13th February 2008, 08:34 PM
i had same prob. one of coils had gone
117 to have 1 coil supplied and fitted
my car has not done 18000 miles yet

Can you elaborate a little? It sounds like you should be asking RCS to refund your costs.

Do you know what make coils you have?

Did you ask your dealer to ask RCS for funding the replacement?

BTW, changing only one will lead to its paired twin twin going belly-up so they should have changed two or even four if they are the dodgy ones. So expect the same thing to happen again soon.

There are threads on this forum about coils (especially V6 Laguna) that make very useful reading. Try a search and get the good advice.

Mine were all replaced FoC eventually, the last two at 28k approx.

14th February 2008, 05:39 AM
no i didnt ask and yes they only replaced one. i`ll have to make some calls

10th July 2009, 11:44 AM
I've a Scenic 1.4, 2001, 100K miles.
the exhaust gas monitoring light has come on. This is an indicator that looks like an engine. The manual says take it to a Renault dealer.
Has anyone any idea what this means? It sounds expensive...

i had faulty coils only one but then the rest went it was running as if it was in the wrong gear replaced them and the spark plugs was running fine then in the mornings it wouldn't start without being bumped or towed or run down the street with now different from the coils one thing after another

24th July 2009, 01:26 PM
Appears mine may have gone today on my 'new' 54 plate Grand Scenic, suddenly emissions light came on on dash and car lost power and was lumpy. It was extremely wet this morning so perhaps that had something to do with it?

Anyway seeing as I have only had car for a week, used car garage is going to look into it, I'll keep you posted.

25th October 2009, 12:41 PM
I currently have a 2004 Renault Scenic 1.6 16v Auto (Petrol) that is starting to cause me some concern regarding the coil packs.

Whenever I start driving the car on a dual-carriageway or motorway the engine will go into safe mode and the "Check Injection" message displayed on the computer. After turning-off and turning back-on the engine all is fine and the above message disappears. Generally this is after 10-15 minutes driving but has sometimes happened after a couple of hours driving, so can not say for definate that it happens when the engine is cold.

After this happened a couple of times I took the car to my local garage and they put a diagnostic computer on the car, the message "PO303 - Cylinder 3 misfire" is given (taken on Reflex 3130 diagnostic computer). The car has only done 20,000 miles and the coil packs were replaced by Nationwide Autocenters in Jan. 08 using Bremi 20111 coils (8,000 miles ago).

Is this simply a case that the offending coil needs replacing or is there another underlying problem (Spark plug, Injection unit or EDU etc). Having read the various discussion forums on the Renault Scenic coil packs I get the impression that once a coil pack goes down then the engine will not function normally until the coil pack is replaced, and turning the engine off/on will do little to correct the problem, this is different to the behaviour that I am seeing.

Many thanks for any replies received. /Mike

8th December 2009, 10:35 PM
I'm under the impression that it is essential to use Renault own brand of sparkplug as this could be the cause of the coils failing. 4 plugs cost about 20 quid.
Check the brand of plug used.

19th December 2009, 01:30 PM
Hi all advice needed please, 53 plate 1.8 scenic, yesterday the emisions warning light came on! I have had ignition coil problems before.I am assuming this is the problem.However there is very little or no juddering,the car seems to be running well. I am capable of doing the job myself,but which coil is the offender? I've tried taking each lead off to see which one doesn't cause a change in the engine tick over,but they all make it run lumpy once the electrical connection is removed.Would I be best buying a new coil and changing each one in turn till I get the culprit? cheers in advance fattony

Peter Lynn
7th February 2010, 12:12 PM
Hi chaps,
Just bought a 51 plate Scenic 1.6 16v and have a couple of intermittant problems with it. Firstly cold starting is a pain, the engine starts quickly but then dies off. It starts second attempt but I need to keep the revs up for a couple of seconds.
Secondly I intermittantly get what appears to be 'missing' from the engine but only when taken over 3000 rpm or so, sometines the engine warning light flashes and the after a while it resets.
I have receipts to say that the coils were all replaced 20k miles ago and also front and rear lambda sensors.
Does anyone have any ideas please?

Many thanks

7th February 2010, 08:42 PM

I have a 1.4 Megane I (02), and every 4 - 6 months one or two [not sure, but replace both anyway] of the ignition coils go. What could be the problem? I am assuming its got something to do with the car electrics, but that wouldn't account for them lasting so long, because if it was an electrical fault they would blow as soon as they are installed?

I get them from eBay and have tried Valeo, Pulse8 and Sagem, and have just ordered 4 more of some other brand... all of them have blown within 4 - 6 months of being installed. They aren't that expensive, but when doing them so often it adds up!!

Any help appreciated, thanks :D

16th February 2010, 02:03 PM
well i think this thread just saved me around 100+

just got car back from garage (an other story ) drove to the shops 7miles away done shopping went to drive home got out car park car kangarooed then emission check light came on so up road and on to here found this thread removed all the coil's and sniffed them yes SNIFFED them found 2nd coil had an acrid smell (smell this a lot at work with u/s actuator coils) so phoned local motor fit and got one for 27.90 plus VAT fitted and problem solved.

Thats my cars 3 strikes in the last fortnight :

1st rear indicator 1.98
2nd o/s/f window motor and regulator (thats the other story) 325:mechanic:
3rd second coil pack 27.90

TOTAL 354.88 ouch:steam: and m.o.t in 2 month

17th April 2010, 10:56 AM
Hi ive had my 03 scenic for exactly a week and yesterday i suffered the dreaded "toxic fume" light , after abit of googling i found these forums which have proved very helpful and even saved me money !

I was suffering many of the symptoms of failed coils such as engine cut out at idle,poor engine performance (especially uphill) very poor fuel consumption,spluttery excelleration

I replaced all four coils last night and noticed an improvement instantly BUT and heres my question..........

The toxic fumes light did not go out, i unplugged the battery and left it off over night but that did not fix the issue

is this light ment to go off by itself ? does it go off instantly or over time ? or is there a way to reset it that wont cost me a trip to a dealership ?

17th April 2010, 01:53 PM
Ok maybe i spoke to soon, just nipped to the shop and had some noticable stutter driving up the road :(

Im going to try a fuel treatment and see if that helps :(

21st April 2010, 01:17 PM
Hi, I've had the warinig light with the ZIg Zag line horizontally going through it, which i guess is the coil warning light, come on recently, causing a loss of power when decelerating and the engine to idle about 500rpm faster than normal.

does anyone have any idea if the coil is causing this?



2nd May 2010, 07:37 AM
Replacement is easy, After unclipping the wire, unscrew the smal retaining screw but do not be heavy handed - it has been known to shear.
Not the end of the world though!

Probably a coil.
Try the second from the left first. If no improvement , target the third (front of car) - these usually go first.

Once this sorts out the running of the car - Change the lot! One invariably finds - another coil going down shortly afterwards.
Too often to save cash, just one is replaced - then trouble returns, at a very inopportune time - up a bloody mountain or on a dark, wet night. Yes! the vehicle will often limp along, but then damage can occur to your cat converter - at which stage you are talkng about big money.

This writer went onto the Internet for his coils, though I'm aware local alternative car shops sell them. A set of four is around 60 - Renault coils were 43 each. Not sure about the fitting charge or associated coupling to a diagnostic computer - locally the latter is 45 to plug in.

Incidentally one Internet supplier offers a three year warranty plus next day delivery before noon!
Naturally there are other areas that could be at fault -but if you do not have a diagnostic gadget -that's the first place to examine. Only tools required a socket spanner. SamWoerth

2nd May 2010, 11:10 AM
Just for info and further to the above. I have just changed the coils in our Scenic. Second from left was the worst ;)

109 for all four from my local motor factors which is a whole lot cheaper than Renault parts. Don't worry about the make of the coil as I've been informed it's a running problem which is not specific to the particular coil you put in.........that's what I've been told anyway!!

Ten minute job at most on our Scenic.

remove engine cover
unclip the four ignition leads
undo bolts holding coils in place
wiggle coils free of spark plugs
replace in reverse with new coils

I would say you may as well check the condition of your spark plugs whilst removing the coils.....to birds with one stone an' all that ;)

2nd May 2010, 11:56 AM
Wife has just come home saying her Scenic has a warning light on the dash and is running rough. Been out and started it up, no warning light now but it is chugging on idle and when revved a bit it is definitely misfiring.

Is that likely to be the coils?

Bloody car, only just replaced rear shocks on friday......its a conspiracy i tell you.

2nd May 2010, 12:19 PM
It sounds very promising to be a downed coil, you can't afford to run it too much either, if it is a coil & you don't sort it PDQ it will ruin the CAT :(

2nd May 2010, 12:43 PM

pull each coil in turn and have a look down the wee hole at the end. You could quite clearly see the difference in one of ours that was FUBAR!

Also, if you've got a volt meter try this (http://www.ehow.com/how_4912368_check-coil-packs-voltage-meter.html) on each coil to point you in the right direction :)

I tested the primary winding by connecting the volt meter to the two pins at the top of the coil. Then tested the secondary winding by connecting one lead to the coil (stick it in the hole at the end to connect with the coil) and the other lead to the bottom pin at the top of the coil IIRC (the one that gives you a reading anyhow). See what figures you get and if there's a significant difference, you'll know which coil/s is/are the problem ;)

2nd May 2010, 01:36 PM
any ideas as to which brand to get.

Ebay set of 4 40

Valeo set of 4 75

Intermotor set of 4 66



Renault 29.99 each

QP Coils set of 4 43

31st May 2010, 07:40 PM
I've a Scenic 1.4, 2001, 100K miles.
the exhaust gas monitoring light has come on. This is an indicator that looks like an engine. The manual says take it to a Renault dealer.
Has anyone any idea what this means? It sounds expensive...

hi what i did was i went to a scrapyard gat a new map sensor and my problem was solved

11th June 2010, 06:23 PM
I have a 2003 Scenic 1.4 16v and this light has just come on!! Any ideas? Yesterday I had to make a repair to the join in the exhaust after the cat....could this have caused the problem? I also fixed my air-con which was unplugged yesterday. Any help would be great.

Like others have said, I hope this isnt a sign of things to come, earlier the ABS/SERV light also came on but this when out when I unplugged a cable under the car and then plugged in again

Thanks ppl :confused:

12th June 2010, 01:15 AM
got the coils out today and 3 looked good, one was very orange and didnt look too good. Would this be the cause of the light coming on??


14th June 2010, 12:56 AM
Sorry me again

Getting more and more concerned about this light that is still on!

Had a busy weekend, done the following;

Replace all 4 coils one by one
Changed the oil/oil filter/spark plugs/coolant
Checked all wire/connections etc in the engine bay
Disconnected the battery for ours on end to reset the light.
Have bought some redex to add to the fuel tank when I fill up

Light still on. Have only had the car 8 weeks. Its done 55,000 miles, was off the road from Dec 09 (was a Cat D) and in 8 weeks we have done 2500 miles. Its running like a dream (touch wood!), no misfiring/poor starting/poor economy.

Any help would be good, not sure if i need to replace lambda sensors?? Tried to check them but have no idea how to remove.:confused:

In the meantime I have bought a kit to plug the car into my laptop with the relevant software which i'm hoping will tell me what's wrong.(probably won't be much use!)

As much as I love the Scenic (like alot!) I am missing Ford ownership right now :crazy:

20th June 2010, 12:56 PM
Hi all,

... so apparantly I'm not the only one with this problem ...

Engine warning light went on, the engine was running just on three pots.
So I changed a faulty coil (yes, the second from left) - now the engine is running on four cylinders again but does not have any power.
The idle is much to low and the engine shuts off when the car stops.
The engine warning light is still on.
And I think I can hear a mechanical clicking sound from the engine bay.

Any idea if the faulty coil could have damaged any other part that causes the new problems?
What could I check?


Thank you from a Renault Rookie!

20th June 2010, 09:02 PM
Finally fixed mine :d

Was a combination of an airflow sensor thing on the throttle body playing up (replaced with one from a scappy for 1!). Fault deleted

The second problem was a bit more annoying as I deleted the fault 3 times and it kept coming back. Turned out it was caused by the Redex in the fuel tank! Will never again do that, made the car run rich (we are talking 15mpg on a run - from a 1.4 16v!!!):devil:

All done with the 14,99 bit of kit I got from ebay (elm-327-car-diagnostics-usb-to-vagcom-fault-code-cable)


21st June 2010, 11:45 AM

where do I find the port to connect this diagnostic cable? Just orderd one ...

Thank you!

laddies dad
26th July 2010, 12:43 PM
Has any-one bought any of these coils off eBay from autoelectricsuk for £35 inc postage?
Seems very cheap to me, but quite possibly o.k. though.

28th August 2010, 01:19 PM
I've a Scenic 1.4, 2001, 100K miles.
the exhaust gas monitoring light has come on. This is an indicator that looks like an engine. The manual says take it to a Renault dealer.
Has anyone any idea what this means? It sounds expensive...
Hi is it the orange light next to the ABS light? if so im so confused, my light came on last wednesday took it to garage cost me 352 for new cat and two lambda sensors, on my way down to cornwall 291miles later its back on again!! ive had all four coils replaced too! ive just got home 900miles later its still on but the car is running fine have you any ideas? mines 2001 1.4petrol thanks debbie

12th January 2011, 03:12 PM
Hi folks i'm having problms with my scenic automatic 2.0 I changed the battery recently , as my old one died with all the cold weather.

When trying to start the car it wont start. Ive got an orange light whats flashes constantly and the stop light which is on. The engine ticks over but wont fire.

I've tried to tow/bump the car but that wont work. Ive also tried jump lead and no joy with that.

Any ideas why it wont work would be fantastic.

The central locking also seems to not work :S

7th March 2011, 07:59 PM
my 2002 scenic has just suddenly lost power in most gears and is shuddering along after reading all your posts i think i am inclined to change the coils all i want to know really is will the flashing light go out automatically or will i have to get it reset. cheers for your help guys

17th April 2011, 03:55 PM
I have a 04 Scenic II, 1.4 petrol
Just trying to find out if the coils sold on ebay will fit any Scenic or just the Mk1.

11th May 2011, 08:59 PM
my 2002 scenic has just suddenly lost power in most gears and is shuddering along after reading all your posts i think i am inclined to change the coils all i want to know really is will the flashing light go out automatically or will i have to get it reset. cheers for your help guys

The light will go out as soon as the right coil is changed,,,assuming it is the coil of course. Just done mine, its always the last hole you try but an easy fix none the less.

13th May 2011, 12:10 PM
Hi, I've the same problem; the exhaust gas light goes on when the temperature gauge gets near the top. Is this problem connected to overheating?

8th August 2011, 10:48 AM
I have a 2003 scenic 1.4..my engine management light has come on again (did it about 6 months ago, but went back off again after a couple of days). When plugged in on Kwik fits computers it is throwing up fault codes: 6106 and 6019 (unknown).... It is intermittently running a bit rubbish and there is sometimes a petrol smell .... It passed an MOT just a month ago and no problem with the emissions... so could it be the well known coil problems?

I could do with sorting it out as cheaply as possible...hence me not wanting to take it to the renault dealer.

Advice gratefully received.

22nd August 2011, 11:07 PM
My Daughters '04 grande scenic Dynamique 1.6 VVT has had new coils ,cam sensor and dephaser pully as well as a window reg all replaced at under 50k.
All common faults ,only the pully was done partly under w'tee daughter paid half as well as paying for the coils ,sensor and reg.

23rd August 2011, 10:09 AM
Hi,My car Scenic 51 model 1.6vDynamic done 45k, just started the car after been to pc world and the car started juddering a bit and when accelerated it is ok, thought might be a spark plug dirty or faulty,on my way home at traffic lights accelerated the car a bit to stop juddering thinking it might switch off. The emmision light is blinking. Could any one please help, reading the above seems to be coils . What is the best way to find out whats wrong without spending too much money. Thanks in advance from panicking driver.

23rd August 2011, 11:05 AM
after fitting new outlet valves to my 1.4 16v due to burnt valve also engine light on
anyway after repair engine light was still on as soon as i replaced the air filter it went out the old filter looked very old last owner may never have changed it
it also had a slight miss as i had some new coils i replaced 2 (guess as to which one is faulty )
since then it has run perfect
i keep 2 coils in the car as i have had one go on another scenic and learnt my lesson

24th August 2011, 08:43 AM
Are the injectors easy to access on 51 scenic dynamic.

28th August 2011, 11:08 PM
That really is top advice, just had to join the forum to say that I'm a complete neanderthal when it comes to cars, but I had this same problem a few months ago and followed these simple instructions. Cost me 30 for a replacement from Bullseye and fixed the problem. I was so proud of myself! If I can do it then a chimp could, it was unbelievably simple!

Another went yesterday and thankfully I'd bookmarked this page (took me ages to find it last time), so that's a small fortune you guys have saved me in garage costs, thanks so much.

To test them,disconnect the injectors one at a time and not the coils.The coils are wired in pairs,so if you disconnect one it takes another one out too.(Hence the amount of people on the forum who have had two replaced at the same time,when one would have fixed it........):)

31st August 2011, 07:00 PM
I am considering buying a 2006 megane scenic dynamique 1600. Are meganes of this age prone to the same coil problems or is it just earlier model? Did Renault ever sort it out?

31st August 2011, 07:56 PM
I am considering buying a 2006 megane scenic dynamique 1600. Are meganes of this age prone to the same coil problems or is it just earlier model? Did Renault ever sort it out?

When did Renault ever sort anything out?

29th October 2011, 03:21 PM
I've just replaced the coils on my 2001 1.6 16V RT. It's still coughing and f*rting like a good'un though - Have to take it for diags next week but was trying to avoid a garage if possible due to a complete lack of funds at the moment.......anyone got any other ideas?:crazy:

I have the warning light intermittently.......weird.

29th October 2011, 06:35 PM
>anyone got any other ideas?
I picked up a very cheap (15) diagnostic scanner from ebay (http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItemVersion&item=260850314719&view=all&tid=843025302016) a little while ago, it works fine on my 2002 scenic 1.6 auto petrol. It uses the ISO9141 protocol, so if you look for a scanner then you need it to support that protocol (unless I picked up a scam model of course).
It should tell you a code that will give a clue as to the cause of a fault, once you look throught the book of codes of course!
Other cheap things to look at would be cleaning the filters, making sure there is the right quantity of engine oil, the spark plugs are well gapped and clean, the TDC sensor is clear of metallic bits, earth strapping is refreshed (loosen, wiggle, tighten), wipe away surface moisture...
err - ok probably enough for now - I'm off to read a bedtime story to little'un.


6th November 2011, 11:41 AM
check emissions light came on today but the car is running fine ---all four coils were changed in January.

We only drive round town and car rarely goes more than 4 miles a trip. Is it likely coils have gone again so quickly ---8000 miles done since change

6th November 2011, 01:51 PM
Maybe a carbon build-up? only doing short trips isn't good - diesels with particulate filters for instance are notorious for causing problems with just short trips.

Try a decent blast up a motorway and see if the light changes - or try putting some Redex in your fuel.
Putting Redex in the carb every so often used to be the thing to do, but it didn't half used to make a mess :-), sorry :-(


6th November 2011, 02:57 PM
Obviously the warning light came on for some reason so it may be well investigating why. A few quid spent now may save you money in the future.

If it were mine I would be checking the colour of the spark plugs usually a good method of checking if an engine is misfiring or mis-fueling. Also check for signs of damp, etc.

Yes it is possible for a coil to have failed in such a relatively short time. I have seen them fail after 3 months in some cases but there usually was a contributing factor as in one case damp had got around the ignition wiring, etc.

23rd February 2012, 08:10 PM
Hi there,
My wife drove our 2001(51) plate scenic to work this morning and all of a sudden a light on the dashboard came on. The light remains on even as at now when i have just gone to start it. Below is a pic of the light on the dash, could someone please say if this is the EML and would the problem be with one of the coils.
Many thanks


24th February 2012, 07:24 AM
If this warning light illuminates continuously, then you should consult your Renault dealer ASAP. The next stage logo has 'STOP' showing within this engine logo - And that does mean STOP Now!
So it could be worse.
Normally if everything is OK with the engine, this logo
lights up when you start up the engine, then goes off after a few seconds. Presumably after the engine management has found that part of the system OK.

It is monitoring the exhaust gas emissions.

Yes! A faulty coil could be responsible, since a poor or no spark on one cylinder would be sending unburnt fuel to the exhaust system, that would be picked up by the sensor.

If you know someone with a system checking device,
then this will give a read out and area to repair. Or try changing a coil. A favorite of mine -see Megane.
However buying spares which may not be needed
is a waste -Sadly some garages do charge heavily for
using their engine analysis equipment. My last quote for just a plug in & readout was 45.
(Pencil coils 15 -40 each)

24th February 2012, 07:36 AM
Please note the picture which comes up,when you
click on 'blued coil' in Renault Forums emails -
Is not a pencil coil.
See Megane pictures -SamWoerth.

If you try to locate the 'blued coil' shown you may have to look at the engine of another manufacturer.


21st March 2012, 02:49 AM
The coils made from Sagem (French company... and I am french, hehe...), which came on many Scenic 1 phase 2, are really really bad. I got lucky and got mine with Denso coils, they made more than 100000 kms, but only 40K for my father's Sagem ... The design is intrinscally bad as the coil leaks current on the lower metal part which gets conductive. You can sometimes check with an ohmeter if they are good (connect one of top 2 connector and internal spring, then the other, you should have certain values, can be found easily on internet). But sometimes even coils with good values are failed. Generally you changed all 4, but this is costly so you'd better change those actionned at the same time (cylinders 1-4 (external) and 2-3 (center)).
To check if they leak, you can plug one out and see if a spark is created between the lower part of the coil and the engine block. In principle the current should only be driven internally, so if it goes outside anywhere else, your coil is defective.

I strongly recommend Denso or any brand with a similar design like Beru. Valeo also seems fine and cheaper. I do not recommend OEM replacement as you may end up with another Sagem... Going off ebay might just be a cheap replacement for 20K...

you can also replace the Torx bolts holding them by hex head bolts as the torx tend to get worn out. A set of 4 hex head size equivalent bolt with same diameter and pitch (metric obviously) should be cheap.

14th June 2012, 03:26 PM
Sadly got the same problem. Gas light came on whilst driving home 2 days ago and started running rough. Replaced all 4 coils and plugs no change! Replaced crank shaft sensor again no change! got fault codes checked by a friend who has a Snap-On Ethos diagnostic scanner, 1 fault code from injector number 2. So decided to replace all 4. And to my surprise it's still running like a bag of ****!. Weird thing is sometimes when you start it up it will run fine for about 15 mins or so then go back to running rough with the engine rocking and car vibrating. Anyone that can shed any light on what could be wrong would be really appreciated at this time because i'm banging my head against a brick wall.

31st August 2012, 06:56 PM
this happend to me today filled my car up with petrol got about 3 miles from petrol station the my car had loss of power & management light came on ...if anyone knows how to fix this would be a great help thankyou

lancs dave
31st August 2012, 08:04 PM
Follow this post.


May be a similar problem.

It could be a bad batch of fuel or water from petrol station fuel tanks.
Do you live near each other by any chance.
Ask the question, you never know.

17th September 2012, 01:21 PM
Finally fixed mine :d

Was a combination of an airflow sensor thing on the throttle body playing up (replaced with one from a scappy for 1!). Fault deleted

The second problem was a bit more annoying as I deleted the fault 3 times and it kept coming back. Turned out it was caused by the Redex in the fuel tank! Will never again do that, made the car run rich (we are talking 15mpg on a run - from a 1.4 16v!!!):devil:

All done with the 14,99 bit of kit I got from ebay (elm-327-car-diagnostics-usb-to-vagcom-fault-code-cable)


Sorry to dig up an old post, but I have the same car and the same issue, tried everything to get the toxic emissions light to go out. Can you tell me what part you replace, was it the MAP or the throttle body or something else? Thanks.

10th January 2013, 11:01 PM
hi all im new here,only had my megane scenic 3 weeks

its just a cheap runaround so when i noticed emmisions light and service light on the next day after buying i thought prob just coils

well its a high mileage 2005 scenic 1.6 auto,ex motability car so full history(why i bought it)

when i bought the car i knew it had been stood months so when the lights went off i thought there is the prob

its ran, i presume sweet for the last 2 weeks until today
(i say presume)
as im used to a 2.4 litre abarth ..very nippy. i wasnt over happy with what i thought was not a very nippy car.pretty slow

as i said the car seems sluggish but im not sure if its coz im used to faster cars

my megane engine seems to run very sweet,you can hardly hear it fire up,its isnt lumpy or knocking.

now when u get a bad coil it affects the engine which makes is sound rough

is there anywhere to look which brings these warning lights on without it being the coilpacks?

could it be the coil packs which is why the car not only seems a bit flat but is...without it sounding like its running on 3 pots?

thanks for any replies
nice to chat to you all jay

17th January 2013, 03:07 PM
Just want to thank all those that gave out some very helpful info in sorting out the coils on my car, saved a fortune by not having to go to the dealer.
The car was running, or not, on what I thought were just 3 pots, suspected a lead or plug but upon reading this thread changed a coil 31.88 from the local motor factor, Took about 10 minutes and hey presto running in all four again


26th February 2013, 08:08 AM
I have also just run into the coil problem. Driving home the other morning after work. Stopped at some lights, starting to go misfire and juddered...
Limp it a mile and the emissions light came on, so pulled over turned the car off and started up again. Limped it home with no more lights. Phoned rac and all the pc could say was a disruptive misfire, so bad to old school mechanics and done the injector trick and 2,3,4 wanted to cut out. They carry spare coils on the van for 42.99, so now I know what I am doing in future it will be cheaper for me!!

Scenic 2003 (52) 1.6 manual

4th March 2013, 11:07 AM
Not sure if this is answer to your issue, but had this a few times, and was a pencil coil breakdown. These coils are fitted one over each spark plug, I just removed all 4 and the faulty one has a strong electronic burning smell, replaced this and all was Ok. Happened again a few months later, bought a set of 4 new coilds off ebay, (ones with 2 yewar guarantee), and never a repeat yet. If this is the issue, this is a common fault. If not, sorry to waste your time.

1st May 2013, 11:11 AM
My wife had the same problem on our 2001 scenic 1.6 petrol. Driving down to Stansted Airport and light came on and started losing power. Limped it into the car park and called AA when she got back Monday eve. AA said showing coils and got it towed back home. Bought new plugs & 4 new coils, had my local garage fit them but still showing fault. Now garage is saying no compression on no.1 cylinder....oh joy of joys. Luckily the garage I bought it off won't charge me labour to fix the problem.....first time I have bought a Renault and definitely the last!!!

1st May 2013, 11:16 AM
The last thing in the world you would ever expect is a problem with a 12 year old car. :rolleyes:

1st May 2013, 11:32 AM
I know you get problems, but only had the bloomin' thing 4 weeks, luckily got some warranty with it and the garage I bought it from won't chg me labour otherwise it might not have been worth getting it fixed.

10th May 2013, 08:57 PM
Best cure for Lamda sensor fault is to disconnect battery and leave it to reset itself overnight..

17th May 2013, 03:30 PM
Lol my rubbish Scenic ran like a dog just before Christmas, turned out only one coil had been replaced. Was told I needed to replace that one again and it's pair, plus a new aux belt - 120. Used to stall at traffic lights/junctions, and when parking the thing. It was fine for a few weeks then occasionally started stalling again. As it happens, before that problem got too much worse, the new aux belt shredded and fouled the cam belt. Sold to neighbour for spares/repair at a 75% loss. Good riddance....

My 10 year old is much better :d

Karen xx

24th June 2013, 04:39 PM
hello all

ive having the same problem as everyone on here but am not sure what it could be.

the wifey got some petrol then all of a sudden, around 1 mile down the road, all the same things happend, lost of power and eatting the fuel and the yellow light came on, took it to my mate garage and he puzzled on what it could be.

he took all the plugs out of each coil one by one and the engine wanted to stall

ive noticed a funny smell when this happend and told that would of been the fuel, when i stop the car, the warning light goes off, ill drive it for a minute and the light goes on, but the loss of power, cluggy sluggy drive still goes on, ive notice that the petrol just goes, we put 15 pound it in and it had gone with in 2 hours

can this be the coils or something else, spark plugs look ok as well. all help is welcome before i start ordering stuff

thank you

oh and the fault code is 200

nonmech phil
31st January 2014, 10:36 AM
hi folks, what's worse than a fault when you are i) not mechanically minded ii) broke ?

when it's the vehicle you have borrowed from the father-in-law

it would appear from reading the above posts that we have a coil issue as the vehicle seems to be running on reduced cylinders (ironically a similar problem to our Rangey which is why we had borrowed the vehicle!)

despite being completely useless at such i am going to attempt simple diagnostic and repair but wondered if anyone could provide an "idiot diagram" or copy page from a manual?