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 1999 Audi A4 Quattro
1999 Audi A4 Quattro
1999 Audi A4 Quattro Problems
A problem with the torque converter can cause the Check Engine Light to illuminate.
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.
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.
1999 Audi A4 Quattro Questions and Answers
do all 4 wheel bearings need to be changed at once
Experiencing annoying high pitch noise (whining) from rear right side (I think) only when accelerating and decelerating. I don't think it is muffler since no noise when idling. Cound it be tir...
my coolant light has been coming on the computer and i notice i have coolant leaking from underneath on the passenger side. i been filing it up and it leaks out. i put a liquid plug fluid in there ...
what mileage does audi recommend for changing the timing belt
1999 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.
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 firstname.lastname@example.org, or just respond on this. Thanks.
The problem that has been on going with my 1999 Audi A4 is the cruise control when I set it, it may stay on for 500 miles or it may stay on for 5 miles and sometimes it will not set at all but I deal with it as I love my car!!!!! I would not trade it for an American car of any brand, it gets great gas milage and has all the power that I need and it handles great!! What more could I want? Maybe just a newer one but that I cannot afford so I will drive this one til it literally falls apart. I do my own work on my car, it is my baby not a mechanics. I donot want ANYONE to touch it internally but myself.
it's a good car, but as an Audi repairs cost an arm and a leg. I honestly wouldn't want to own an audi without my carassistants.com subscription. Saved me like $2K last year alone.
This is my Third Audi. I have the exact one in the picture. I can tell you its expensive to maintain. Expect problems with the Ac. Had to replace the compressor at 140K. Also there is a common problem with the ABS. Faulty communication with the main computer leaves a solid red and yellow flashing abs on the dash. Expect to pay close to $1200 to replace. I dont know why Audi dont recall this. It is a saftey issue. By the way if you're ever in the Turnersville Area of New Jersey. Stay away from the dealership there. They are dishonest!!!. If replacing your exhaust, make sure everything is direct-fit or else it your check engine light will stay on. Overall I like this car, but dont buy it if you're not prepared to spend $$$$ on repairs.