1988 Audi 80 Quattro Service and Repair Manual

This manual for the 1988 Audi 80 Quattro is built around the Base sedan trim specifically, so the procedures, clearances, and fluid capacities inside match what Audi actually published for this car rather than a generic 80-series writeup.

Engines covered

• 2.3L inline-five — SOHC, naturally aspirated, gasoline

Body styles covered

• 4-door sedan

Trims covered

• Base

Known issues on the 1988 80 Quattro. One recall is on federal record for this model year, covering the axle assembly: differential oil is lost over time through evaporation, and the resulting low oil level causes premature bearing and gear wear that can lead to differential failure, with drive wheels losing power or, in extreme cases, the front wheels locking and causing rapid deceleration and possible loss of vehicle control. Owners have filed 4 complaints for the year. The factory diagnostic and repair procedures for that driveline system are here.

Whether you're checking differential oil level or working through a full driveline inspection, it keeps you on the OEM procedure and the correct specification for your specific 1988 80 Quattro.