The thermostat may erratically stick open or closed. The can result in illumination of the Check Engine Light and/or engine overheating.
Resources for the Repair and Maintenance of your 1999 Audi A8 Quattro
1999 Audi A8 Quattro
1999 Audi A8 Quattro Problems
Clogged drains can allow rainwater to accumulate in the plenum tray (at the base of the windshield). The water may leak into the vehicle's interior, brake booster, or electrical components, which can lead to major problems. Our technicians recommend keeping the tray clear of leaves, pine needles, and other debris.
A fluid leak may develop from the propeller shaft seal on the rear of the transmission. Our technicians tell us that replacing the seal will commonly correct this concern.
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.
A problem with the torque converter can cause the Check Engine Light to illuminate.
1999 Audi A8 Quattro Recalls (Recent)
Summary: VOLKSWAGEN IS RECALLING 13,900 MY 1996-2003 AUDI A8 VEHICLES EQUIPPED WITH A 5-SPEED AUTOMATIC TRANSMISSION. THE LOCKING CABLE MAY MOVE OUT OF POSITION OVER TIME. WITH THE LOCKING CABLE OUT OF POSITION, THE SHIFTER CAN BE MOVED OUT OF THE "PARK" POSITION EVEN IF THE IGNITION KEY IS NOT IN THE IGNITION LOCK.Learn more »
1999 Audi A8 Quattro Questions and Answers
tryig to replace lower control arm on audi ab quratto
When I drive 55-60, the steering wheel shakes..not too terribly, but enough to bug me. I got my 2 front tires replaced today (with balance), and it still does it.
2. When i stopped driving and l...
feels is shifting between gears
Do you put the refrigerant on the high side or low side. Or can you provide a diagram?
Can not get anything to blow out of the vent's, It sounds like it's on but nothing comes out
1999 Audi A8 Quattro Reviews
Bought my "dream car" from a dealer in Cleveland. Two weeks after, the transmission needed to be rebuilt (later found out that the tranny in the car was a refurbished one from some time ago). This is a Z type tranny which I now know is one of the most complicated trannys out there. One year after rebuild ($4200), the SAME issues happened again. Transmission shop now says the sensors inside are bad... also found out too late that they don't replace the sensors when they do a rebuild. Been on many Audi forums and unfortunately for me, tranny problems in the A8 are very common (and costly)! And now I believe the speed sensor needs replaced as my tach stops working intermittently... oh, and when the tach doesn't work, the fan for heat and a/c doesn't work either... wtf???