Hello all, I'm a new member & need some advice, I have a A4 2.0 diesel auto, just recently the engine has started to miss under acceleration, feels like its hunting, normal driving is fine its just when I accelerate hard, around the 3k rev mark, has anyone any ideas what the problem could be? if its something I can fix that would be great, I don't fancy putting it in to the garage unless I really have to, thanks in advance......Mac

It could be a number of things to be honest. From injectors, to sensors etc.

 

Have you tried plugging it in to check for fault codes?

 

Also, have you tried using a fuel treatment such as millers diesel ecomax first to see if that makes any difference?

Hello, thanks for your reply, I put the car into my local garage yesterday & had it serviced, what they found was the fuel filter blocked, it was changed last year, all I can put it down to is the wife running the fuel level down, when I got in the car the other day I had 10mls left showing on dash so had to go & fill it up, this has happened a few times, so lesson learnt, don't leave it to wife to put fuel in, anyway cars running great now, pleasure to drive again, once again thanks for you reply. 

No worries glad you got it sorted!  :)

just fitted a new fuel filter revs as sweet as before problem cheap option first before paying for garage investigations.

Thanks for all your input