Questions & Answers for: audi a4 idling rough

...Audi A4 2.0 TDI with 40k mileage.Soon after I noticed the car at tickover (950 rpm) to suffer from a rough idle and also engine stumbles to approx 900rpm (before recovering) when the revs drop e.g ...

...Audi A4. Now there is a vibration when idling and also between 40-70 mph that feels like engine is running rough, but tachometer holds steady. Vibration occurs going up hilss, going down hills, but ...

...audi a4 has been in park or i have been at a red light for awhile, then drive large amount of smoke comes out of exhaust. took it in muiltiple times but nothing has worked.  Help n that would be ...

...Audi A4 saloon stays on, the engine idles rough but doesn't cut out. It has high emissions. If I disconnect the -ve terminal and reconnect it the warning light goes out but reappears within a day. ...

...Audi A4 1.8T just started running rough. At idle it cutting out and wont go over 20mph. Had the timing belt replaced 20,000 miles ago. Any ideas? check the catylitic convertor, it may be rstricted ...

...Audi A4 Quattro 2.0T Idle Vibrations Hi I just bought a 2007 Audi A4 Quattro 2.0T with about 31k miles on it. The car vibrates when it's idling, is this normal? I've only owned trucks before so my ...

Can hear an air leak between back of head and firewall. 1.8T Quattro. Just replaced breather hose under intake and Timing Belt @ 101,000 miles. Rough Idle. Sounds like a vacume line has come off. This

audi 1999 a4 runs rough idles up and down audi 1999 a4 runs rough the car idles up and down the car has been setting for 6 months with close to about a quarter tank of gas i put about 1 gallon of new ...

Audi A4 runs rough at idle Check for vacuum leaks on intake hoses/ manifold. Check for broken crank case breather pipe near joint with intake pipe. If the cylinder head has been worked on, check fault

...Audi A4 1.8t car runs idled at about 800-1000 really rough idle. Has a lot of back pressure coming out of the exhaust. Any ideas? Or any questions you may have to help me figure out what's wrong with ...