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1999 Audi A8 Quattro Problems

RepairPal has identified the most common problems with the 1999 Audi A8 Quattro based on complaints from actual vehicle owners. We'll tell you what the problem is and what it'll take to fix it.

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6
Known Problems

A problem with the torque converter can cause the Check Engine Light to illuminate.

Various bushings—located around the subframe, suspension, and steering—deteriorate with age. A clunking noise when driving over bumps, accelerating, or stopping may be a sign of worn bushings.

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 thermostat may erratically stick open or closed. The can result in illumination of the Check Engine Light and/or engine overheating.

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.