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 2009 Audi A8 Quattro
2009 Audi A8 Quattro
2009 Audi A8 Quattro Problems
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Premature wear in various multi-link suspension components can cause noises that are difficult to diagnose. Worn suspension parts can also cause uneven tire wear and create steering alignment problems.
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.
2009 Audi A8 Quattro Questions and Answers
when I push the round button in the center to select language and radio or cd; it doesn't do anything...none of the buttons do anything. can I take the console cover off?