Vacuum leaks, oxygen sensor failure, and catalytic converter efficiency faults can cause the Check Engine Light to illuminate.
Resources for the Repair and Maintenance of your Audi A4 Quattro
Audi A4 Quattro Models:
Audi A4 Quattro Problems
A problem with the torque converter can cause the Check Engine Light to illuminate.
Erratic turn signal operation can be a result of a failing turn signal flasher relay which will require replacement.
Our technicians recommend having the constant velocity (CV) boots and CV joints inspected at each service. Servicing torn CV boots early can prevent the need to replace the CV half shaft or CV joint.
The digital display portion of the instrument cluster may fail. Our technicians tell us the entire instrument cluster will need to be replaced to correct this concern.
Audi A4 Quattro Questions and Answers
All lights come on but none stay on. Will start back up after a couple of seconds. Also if car sits in neutral it will just stop. Would the cold weather have anything to do with it.
All of a sudden, my Audi is hesitating, bucking and it feels similar to when you turn the AC on...when the compressor comes on it lurches a little ...and then after driving awhile it will stall at ...
After three service visits, it's still doing the same thing...had a loose spark plug code: P0301 fixed, a vacuum leak, diagnostics on battery (would't turn over but I cranked it about 10 ...
Thanks...I've owned about 7 Audis (my best friend is an Audi tech for 20 years) but he now has two kids an hour away so he'll nail the issue for me but I'm trying to fix it up here m...
Audi A4 Quattro Reviews
1999 Audi A4 Quattro 1.8 turbo. Since of two weeks ago my car takes a while to start the first time and the engine doesn't sound like it is running at its full potential. So then I will turn it off and restart it and it will start almost instantly. Also since of the past two weeks my car doesn't seem like it has as much power and sometimes makes a whooshing sound but I can only hear it from within the car. The thing that is kinda bothering me though is that the weather is starting to get around -5 to +1 and the car should be starting better then it did when it was -20 to -30 outside.
the car overheats, steam comes from the back of the motor when warmed up and eventually overheats. the steam comes from the top of a piece on the back of the motor and has no hose attatched. and the heater blows cold are all the time
Hi, i was just wondering where i could find a Mass air flow sensor for my 1999 audi a4 quattro for a decent/cheaper price? It needs a new one because its making a clunking noise and it shakes when it does it, and after that i have absolutely no power in my car. You can email me at email@example.com, or just respond on this. Thanks.
Just got this car a month ago. Car seemed to run well however there was a little squeaky noise when accelerated on first and second gears. It stopped as i drove it more. Check engine light come on and off. Now the oil light cam up, added oil and its still on. Havent driven it (this just happened this weekend). As i tried to drive it to get it checked it started a rattly noise coming from underneath the engine, I dont know much about cars but this noise doesnt sound good. sounds like something grinds, almost as if the gear was stuck. It stops once you get to 3rd gear, but will come back as you slow down. It starts as soon as you start the car. Shifting gears are smooth and car starts normal, its just the going that seems to get the noise out the most. If you know what this could be let me know. firstname.lastname@example.org
car running hot