An External oil leak may develop from the valley pan gasket (under the intake manifold) and/or the head gasket.
Resources for the Repair and Maintenance of your 1994 Audi 100 Quattro
1994 Audi 100 Quattro
1994 Audi 100 Quattro Problems
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 water pump may fail resulting in engine overheating and possible timing belt damage. Overheating and/or timing belt failure can result in very expensive engine repairs. As a precaution, it is recommended to inspect the timing belt and water pump at regular intervals.