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Problems for specific Audi A8 Quattro years:

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Most reported 1998 Audi A8 Quattro problems

 

Verified for the Audi A8 Quattro

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

32 Reports
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Verified for the Audi A8 Quattro

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.

21 Reports
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Verified for the Audi A8 Quattro

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

15 Reports
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Verified for the Audi A8 Quattro

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.

15 Reports
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Verified for the Audi A8 Quattro

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.

14 Reports
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Verified for the Audi A8 Quattro

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.

5 Reports
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Verified for the Audi A8 Quattro
Oil leaks can develop in the crankcase ventilation hoses, in between the cylinder banks.
2 Reports
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