I have a 2003 Renault Megane II, 1.6l.
Lately, I've been having issues with the car, on occasions, it will struggle to idle and after a few seconds will cut out. Iginition still on, I can start the car again, but require heavy attention to the accelerator pedal, as to keep it from cutting out. It normaly idles around 900rpm, but needing to keep the revs at 2000rpm, when at a stop, to prevent cut out.
While driving, it doesn't feel as powerful either.
The strange thing is, this is not all the time. It's been fine for the past 2 weeks. Had the 150,000km service done. No issues. Renault were unabel to find any problems. Then it happened agin yesterday.
The other problem, and it seems directly related. Can guarentee, that if it gives me issues today, tomorrow the car battery will be completely flat, having drained overnight.
I've had an electrical engineer look at it, but doesn't seem to be shorting anywhere,
Any ideas? This has been on and off for the past 2months, and would really like to get this sorted out.