It may be an EGR valve problem - quite a common fault on the Dci engine.

Does the car have a Diesel Particulate Filter and if so are ther any warning lights showing such.

 

Hi Madnoel10 - many thanks for replying and trying to help. Although the car is diesel I don't know if it has a diesel particulate filter - the only warning lights on are the check injection with the orange spanner highlighted. Was serviced 2 months ago, but not at a Renault garage and I don't know whether they changed the fuel filter, The car has been booked in for diagnostic check tomorrow and I've been told the usual "it could be a cheap fix or possibly very expensive" . Thanks for the EGR valve suggestion - am about to look it up and educate myself!

 

Hi,

I am having exactly the same problem
2007 megane 1.5dci

Did you fix this?

changed my EGR and made no difference

I put my foot down and reaching 65 plus i have a sudden loss of power, check injection appears and a spanner light.
I had a machine plugged in and it came up "DF301 air intake circuit malfunction"
Turning off the engine and back on clears it. Even on the plug in machine. If i go 65 plus again it comes back on.

Any ideas?
please let me know or anyone else?

 

Hi,

A diagnostic check showed the problem as a Power Booster Sensor. Had to wait for one from Renault supplier who said it was a common problem and they were out of stock countrywide. Sensor now fitted and car back up to speed. The sensor came to £97 plus labour and VAT totalling £179. I suppose it could have been worse!! Not sure if your loss of power is the same as mine was at all speeds whenever I accelerated. Hope this helps and you get fixed up soon.

 

hi Dee,

Did you have any problems with smoking out of the back? failed MOT on emissions today mmm sure its related!

 

Hi there, no, there was no smoking from the car when I had my problem, just loss of acceleration and power.

 

Does anyone know a different name for the power booster sensor. I can't find that on Google etc?

 

I have a 1.5 DCI, similar problem, but i'm not a mechanic and thought of spending hundreds of £££££ repairing has me concerned.
First start of the day, it runs fine, turn it off to go into shop or whatever, go back in, start it, runs on limp mode...
Probably best to just sell it?????

 

How much do you want for it.. > :wink2:
All cars need a bit of TLC.
As yours is doing it when warm..
EGR sticking , Engine coolant temperature sensor, or with your symptoms dirty crank sensor tip...

First thing would be, check,..
Enough info on here if you use the Search tab, for you to learn, and check/clean these parts..

 

Lol, mines is a Megane estate 2008 1.5 DCI, i love the car, but it's starting to get to that age where everything seems to go.
It was running limp constantly for a while, but i took battery earth off and back on, and it ran fine, now only doing it on restart..
Weird car..lol
Cheers