This service and repair manual is built around the 1989 Audi 100 specifically, covering the year and trim details Audi published for this car rather than generic sedan procedures pulled from another model line.
Engines covered
- 2.3L inline-five — SOHC, naturally aspirated, gasoline
Body styles covered
- 4-door sedan
- 4-door wagon
Trims covered
- Base
- E
Known issues on the 1989 Audi 100. Three recalls are on federal record for this model year. The first covers the transaxle: differential oil is lost over time to evaporation, and the resulting low oil level causes premature bearing and gear wear that can lead to drive wheel power loss or front wheel lockup, sudden deceleration, and loss of vehicle control. The second covers the scissor jack supplied with the vehicle, whose trunk instruction label is incorrect, risking jack collapse and injury to anyone under or near the vehicle during use. The third covers the frontal airbag sensor and control module, which did not meet Audi's durability standards over the vehicle's lifetime and could deploy the airbag without warning, causing loss of vehicle control. Owners have filed 6 complaints for the year, and no technical service bulletins are logged. The factory diagnostic and repair procedures behind each of those systems are here.
From checking the transaxle differential oil level to correcting jack usage or inspecting the airbag sensor, it keeps you on the OEM procedure for your specific 1989 Audi 100.
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.
INSTRUCTION LABEL IN THE TRUNK OF VEHICLE IS INCORRECT FOR THE JACK SUPPLIED WITH THE VEHICLE.
INCORRECT USE CAN RESULT IN THE JACK COLLAPSING, WITHINJURY TO INDIVIDUALS UNDER OR NEAR VEHICLE DURING COLLAPSE.
SUPPLY INSERT TO OWNER'S MANUAL NOTING CORRECT USAGE, AS WELL AS A CORRECTED INSTRUCTION LABEL FOR THE TRUNK.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME AIR BAG SENSORS DO NOT COMPLY WITH AUDI'S DURABILITY STANDARDS OVER THE LIFETIME OF THE VEHICLE.
IN THE EVENT THE SENSOR SHOULD MALFUNCTION, THE AIR BAG RESTRAINT SYSTEM CAN INADVERTENTLY DEPLOY. DEPLOYMENT OF THE AIR BAG RESTRAINT SYSTEM WITHOUT WARNING COULD CAUSE A DRIVER TO LOSE VEHICLE CONT
DEALERS WILL REPLACE THE AIR BAG SENSOR CONTROL MODULE.
DIFFERENTIAL LEAKED OIL INTO THE TRANSMISSION WHICH DAMAGED THE GEARS. *AK A RECALL WAS ISSUED RELATED TO THE PROBLEM THE CONSUMER'S VEHICLE EXPERIENCED BUT THE VEHICLE WAS NOT INCLUDED DUE TO VIN.
FAN MOTOR FAILED.
SPEEDOMETER FAILED. YH THE SPEEDOMETER NO LONGER RECORDS SPEED, IT BOBS UP AND DOWN BETWEEN 20-40 MPH, THE ODOMETER NO LONGER RECORDS MILEAGE, THE MANUFACTURER WAS NOTIFIED BUT THEY SAID THIS WAS NOT
SPEEDOMETER FAILED. YH
SPEEDOMETER FAILED,THE ODOMETER NO LONGER RECORDS MILEAGE. YH
WINDOWS FOG OVER AND THE DEFROSTER ONLY MAKES THE PROBLEM WORSE.
