JohWeber91
Looking for advice: Renault VelSatis with various symptoms - suspected ignition coil defect
Loss of engine power
Shaking while idling
Poor fuel economy
Black smoke from exhaust on acceleration
Car won't start
Check engine light on
Jerking on acceleration
Stalling while idling
Unsteady engine
(Translated from German)
4 comment(s)
Hey, thanks for the helpful tip! I actually wouldn't have thought of a faulty engine control unit. I realize that the repair can be expensive, so it would be interesting to know what you shelled out for it, if you can remember? And have you had any other problems with the car since then? Greetings
(Translated from German)
Hey, you're welcome! Yes, the repair wasn't exactly cheap. It cost me €1000 to fix the faulty engine control unit. But since the visit to the workshop, my Renault has been running like clockwork, no more ignition coil defects or misfiring. Now everything runs as it should. It was a tough pill to swallow, but it was worth it in the end. Hope this information helps you! Greetings
(Translated from German)
Hey, that's a lot of money, but I think it's worth it if the car runs smoothly afterwards. I'll take your advice to heart and have the fault memory read out and the engine control unit checked next time I'm at the garage. Thanks for your help, it was really encouraging! Greetings
(Translated from German)
Let our mechanics help you!
Hi, I can well understand how frustrating the situation is. I had similar symptoms last year with my 2011 Renault Mégane petrol car. It's crazy how similar the symptoms are. On mine, however, it wasn't the ignition coils or misfiring, but the engine control unit was faulty. The engine control unit regulates everything, from fuel consumption to idling, and if it is defective, problems like this can occur. The symptoms also point to an engine control unit defect rather than an ignition coil defect. Have they read the fault memory at the workshop? They did that for me and that's how the engine control unit defect was determined. That was quite a blow, because it's definitely not a small part that can just be replaced. But don't worry, it can be repaired, even if it's not trivial. So, don't worry, have the workshop read out the fault memory and assume that the engine control unit is faulty. Hope that helps you! Keep us up to date! Greetings, (first name)
(Translated from German)