I have had a mechanic mate look at my 1999 A4 1.8 non turbo B5 due to the slight flat spot from idle, he is pointing the finger at maybe the butterfly in the throttle body. I have read alot that it is quite common for the body to get cack build up inside and cause idle/throttle response issues, if i was to remove/disconnect it from the car and clean it up will i need to re-program anything when putting it back onto the car? cheers guys

 

Hi there I am currently experiencing the exact same problems! Although my mechanic did try to clean out the TB and no luck he also said that it cant be picked up by the vagcom in order 4 it 2 be aligned. I will have mine replaced by next week and ill let you know how it goes.

 

I have just had that TB replaced all my problems have been sorted thanks to that car drives smoothly and the idle has improved