This factory service and repair manual for the 1988 Audi 80 is matched to this exact model year and trim, so every specification, wiring diagram, and torque sequence inside reflects what Audi actually published for this car, not a substitute pulled from a later or earlier 80.
Engines covered
- 2.0L inline-four (121 cu in) — SOHC, naturally aspirated, gasoline
Body styles covered
- 4-door sedan
Trims covered
- Base
Known issues on the 1988 Audi 80. One recall is on federal record for this model year, covering the transaxle differential: the differential oil is lost over time due to evaporation, and low oil levels cause premature bearing and gear wear that can lead to differential failure, with the potential for the drive wheels to lose power or, in extreme cases, the front wheels to lock and cause rapid deceleration and loss of vehicle control. Owners have filed 4 complaints for the year, and no technical service bulletins are logged. The factory diagnostic and repair procedures behind that system are here.
Whether you're inspecting the transaxle differential oil level or working through a routine service interval, it keeps you on the OEM procedure and the correct specification for your specific 1988 Audi 80.
THE DIFFERENTIAL OIL OF THE TRANSAXLE IS LOST OVER TIME DUE TO EVAPORATION. LOW OIL LEVELS CAUSE PREMATURE BEARING AND GEAR WEAR AND EVENTUAL FAILURE OF THE DIFFERENTIAL.
IN THE EVENT OF FAILURE, THE VEHICLE'S DRIVE WHEELS COULDLOSE POWER. IN EXTREME CIRCUMSTANCES, THE FRONT WHEELS LOCK, CAUSING RAPIDDECELERATION RESULTING IN POSSIBLE LOSS OF VEHICLE CONTROL AND AN ACC
DRAIN AND REPLACE THE DIFFERENTIAL GEAR OIL WITH OIL HAVING HIGHER PERFORMANCE CHARACTERISTICS.
DRIVER AND PASSENGER DOOR CANNOT BE OPENED FROM THE INSIDE. TT
VEHICLES HEATER CORE IS DEFECTIVE AND IS LEAKING HOT LIQUID ON DRIVER AND PASSENGER SIDE FLOORS.THE WINDOWS ARE ALSO FOGGING. TT
MASTER CYLINDER LEAKED, TOOK TO DEALER AND HE REPLACED MASTER CYLINDER. *AK
DIFFERENTIAL DAMAGED, CAUSING LOW FLUID LEVEL, PRIOR TO RECALL, RECALL REPAIRS REFUSED DUE TO VEHICLE NOT BEING SERVICED BY AUDI DEALER. *DSH
