IvyIry
Looking for solutions to problems with Audi A6 Diesel 2010: Black smoke, DPF regeneration, preheat indicator and jerking at idle speed
Longer cold start time
Car won't start
Pre-glow light won't turn off
Shaking while idling
DPF regeneration failure
Black smoke from exhaust on acceleration
(Translated from German)
6 comment(s)
Hey, thanks for the info! At this mileage, it could actually be glow plugs or the glow control unit. So, your guess could be right. Or it could also be something with the fuel supply. In my case, with my old A4, I had to replace the glow plugs and the control unit, cost me about 250 euros in total. After that, all the symptoms disappeared. In your case, I would suggest having the fault memory read out first, it might help to narrow down the problem. Then I would perhaps have the glow plugs checked or replaced, as they often need replacing at this mileage. Of course, as you say, every situation is unique. But that's my 2 cents on it, based on my experience and the mileage of your car. Hope this helps you!
(Translated from German)
@Dima.K
Hi all, the issue was a faulty glow plug, replaced with new one from Audi, issue resolved.
That's great to hear, Dima.K! Faulty glow plugs can indeed cause the symptoms IvyIry described. It's always a good idea to start with the simpler checks like these before moving on to more complex possibilities. IvyIry, please let us know if replacing the glow plugs resolves your issue. Do you have any other questions or concerns?
Let our mechanics help you!
Hi, I had a similar problem with my Audi A4, model 2008. I am not a car professional, I just have some experience. The problem was identified by the support people at my favorite garage. The fault was diagnosed as "ground connection to glow control unit defective or contact bad". They fixed it for 120 euros. Of course, your problem could be something else as every car is different. Could you please give us more information about your vehicle, e.g. engine size or mileage? That way we could help you more precisely. Hope this helps you!
(Translated from German)