Hi everyone,
Iv just bought a W reg A4 avant 1.9tdi, I must say the car is great, however i have had an issue with the car juddering when I put my foot down hard enough. If i accelerate gradually there is no problem at all, it revs beautifully and can get to a decent speed. When I, for example, accelerate hard out of a roundabout in a lower gear it can judder violently, this stops as soon as i lay off the throttle slightly but it returns whenever I quickly put my foot hard down on the accelerator. Iv also noticed a rough/ lumpy tick over that is intermittent. Iv bought a new fuel filter and a diesel system cleaner that I will use in the coming days.
Just wondering if any of you lot might know cause of this issue?
many Thanks!!