Hi and welcome to the forums. Try search the forums for TDC sensor to begin with...

 

Had exactly the same problem would not show up when car scanned by dealer. Very frustrating as would only happen intermittently when I was driving. Mechanic said it had happened on another scenic and replaced the cam-shaft sensor,had no problems since.

 

Hi Thanks for your info, after posting I checked other threads and It seems to be a common problem. Ive had the sensor replaced , and up to now all seems fine.

 

Just to verify...Had exact same problem ,failing to start intermittently,got the answer here....Thanks.
TDC sensor was the problem,removed,cleaned and replaced .....working a treat ever since.

I was suprised by the fact that it wasn't that dirty to begin with and also that there were only a few iron filings present on the sensor tip.Must be very sensitive.

 

Hi
I have the same starting problem. Starts fine when cold - or in the morning. But ant given time of day when driving from A to B, I have to crank about 3 to 6 times before she fires up. I read the posts about the TDC sensor here - opened her up, took out the sensor, cleaned it gently (there wasn't much to clean anyways) put it back in, fired her up and Wholaaa.....she did the same crap!! I took the TDC sensor out the following weekend when i had time, cleaned it once more - replaced and no improvement.
Any thoughts out there on what next to do?
Thanks

 

Is there a TDC sensor on a Scenic II 1.6i vvt and if so can anyone shed some light as to where it is and what it looks like, many thanks.

 

All Renults have the TDC sensor and there all fitted in the same location..............

http://www.renaultforums.co.uk/showthread.php?t=10062&highlight=scenic+tdc+sensor+location

 

hi i have something the same on a scenic 2 1.6 16v on a 53 plate , the prob i have it it will start but wont carryon running i can hold the accelerator at 2000 revs but it keeps dipping and sounds like a bag of **** , rough as a badgers ass, i took the tdc sensor out cleaned it but no differant anyone got an idea as its driving me mad and so is my wife as its her car

 

I had same problem but mine was solved by replacing coil on spark plug, it had broken down inside, lt was process of elmination by using a good one and just working through all four plugs to find dodgy one. Did not show up on diagnostics. As soon as the correct one was found engine ran as smooth as silk

 

I own a 2000 scenic and am having the exact same problem with the intermittent starting, which sensor do you think would be the best to change 1st..... the TDC sensor or the Crankshaft sensor?

The car has been checked by a garage on the diagnostic machine and like you nothing has shown up at all!

hope you can help me!

many thanks

 

They are the same thing,Renault generally call them TDC Sensors but most other manufactuers call them crankshaft position sensors.

 

Hi,

I had a problem with my scenic today,it would not start. Went out okay but broke down at my daughter's school.

Last week the central locking kept opening and closing on it's own, I do not know if this is related to the starter problem?

What happened when I pressed the start button was lots of whirring noise, the dash flashed on and off.... and various messages flashed on and off injection fault, steering lock, steering unlocked, then clicking noises.

I did get it started after 10 min by putting my foot on the gas, like you would do in a normal car! Once it was going it drove fine. Got it home and tried to start again but same problem.

Any ideas? From what I have read it might be a sensor issue? Or starter moter fault?





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Hi all first time poster long time reader, i have a 00 renault scenic II, love the car but its giving me awful trouble, as above it starts when she wants might be sighting there 10 to 15 mins before she starts have changed the tdc/ crank sensor twice along with changing plugs and putting in a new starting motor works fine or a few days each time I've changed the sensor but then back to the same trouble I'm at my wits end with the thing. ANY help at all would be great thinking of sticking a match to it.

Oisin

 

Hi i know you have cleaned and replaced the TDC but can you tell me where it is on a Renault Scenic TDI year 2001.

 

hi , i have a Renault scenic 2000, 1.6 that wont start , makes a buzz noise when gear is on drive(D) and the buzz stops when its on parking(P) , no ignition, cd player beeps strangely ,also heard some "windy" noise that stopped , replaced the tdc sensor a month ago - help please , car just went dead ...

 

Hi I have a Scenic Megane 1.6 VVT 2004 reg and have intermittent starting problems and some times the engine cuts out at junctions.

The diagnostic reports the Refrigerant needs topping up? Also The car card although it has new batteries in both cards says on the dashboard the batteries need replacing.

The headlight dim/dip switch and front fog lights also have an intermittent fault and sometimes don't work.

My mechanic has enquired and seems too think the TDC cm sensor is the starting problem although the diagnostic does not show it and also the main ECU could be causing the other problems.

Has someone had similar problems?

 

Hi All, would it be possible to please get confirmation where exactly the TDC sensor is located in a Scenic II 1.5 DCI 80 ('04 reg)?
I've seen the thread locating it above the gearbox housing on the end of the block but I can't see it there.
Thanks a mil.

 

Can anyone tell me where this is on a 2002 renault scenic 1.9 disel

 

i had same problem tcd sensor,i never removed it but gave few squirts of wd 40 into sensor while engine running,now starts first time everytime :d

 

Wonder if this is problem with mine it a 2004 1.4 and car starts but then immediately cuts out. Had it to a garage who wanted to charge me £240 to fit a new part. Being just a mere woman I have not got a clue so so do you think the problem I the same and can easily be fixed.

 

When I had a petrol scenic(03) the only problems I had were Tdc sensor failed Rac man re-energised it and said renew it. Only reqiures 10mm socket and is easy to locate. The other problem were the coils on each spark plug, just a case of finding the faulty one or more. same again 10mm socket with extension.I got replacements of Ebay and they have not failed since over 5 yrs now. Hope this helps

 

I have just aquired a Scenic 1.6 16v 2002 with a similar fault. I am fortunate enough to have a friend that owns a breakers yard so bits are easy to get. I have changed the tdc sensor ( a new one had already been fitted, which tells me the previous owner had troubles). replaced all coils, two relays ( one I believe is the fuel pump relay ) and still the problem persits. There is fuel present but no spark, then try again and sometimes it will spark. I think there may be a possibility that the alarm system is at fault and the immobiliser may not be deactivating, stopping it sparking ( just guessing at the minute ). If I were to change this I assume I will need the ecu, key, coil from around the ignition. Is there anything else I would need.

 

As an addition. Today I changed the ecu, the box under the fuse box, the ignition key and coil. And it started, this was at about 2 this afternoon. just been out and it wont start again.

 

Finally done it. after changing just about every sensor I could find, including changing the tdc sensor and wiring to the blue plug. still it would not start, and then start. out of desperation ( before I scrapped the car ) I decided to change the ecu, bci module, key and transponder coil again. this time I used items from an ordinary megane ( 53 reg 1.4 16v ). A month later and the car still starts first time every time, and is used daily. Had the old ecu and bci checked at an electrician friends workshop and the immobiliser circuit seems to be at fault.

 

I have been having same starting Problems since July, today its in the Garage, and everything, including starting without problems, is ok?
I'm still waiting for the garage to ring back, to tell me if they have found out what the problem is. I will ask them to clean the TDC Sensor, as everything keeps pointing in that direction, from what I have seen on this forum site.
I will get back to you all, as soon as This is done, and let you know what the result is. Thanks.

 

I had a simlar problem starting my Scenic, even with a spare Battery to jump start, it was lucky if I managed to get the car started. it would even show signs of flat battery turning over with not firing up, and became a stressful task to start up. I eventually admitted defeat, and took it in to a garage, told the mechanic the symptoms, and said I'd seen forum reports saying once started the computer did not find anything wrong with the running engine. True the computer found nothing wrong. So I said Change the TDC Sensor, as the car was already there. Very fair Machanic, he charged me for the replacement TDC, and not the computer check.
We are Now into the 2nd week, and the cars started without missing a beat.
So follow the video and pictures on here (The Forum) or get the TDC changed first, as soon as you get a starting problem. I changed my alternator - Condenser plugs before seeing reports on here (forum) about the TDC. The Garage charged me £70 square. I must report that I still have a leaking into the foot wells of the car, thats my next problem to sort out.

 

TDC sensor is on top of clutch bell housing difficult to see because of pipes held by two 10mm bolts. Might need to remove intercooler pipes to get easier access.
hope this helps. Renaults have problems with connections .Try spraying all visible
contacts with electrical contact cleaner.DO NOT USE WD 40 apparently it leaves a sticky coating .Someone once told me EASY START was good for cleaning contacts but cannot confirm this...