1991 model year · NHTSA recalls, manufacturer TSBs, and owner forum reports · Updated July 2026
According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1991 Audi 100 has 2 documented known issues, with 2 rated critical. The most serious are 1990-1991 Audi 100 3-Speed Automatic Transaxle Recall 93V006 and 1991-1992 Audi 100 Rear-Speaker Amplifier Recall 01V324. DIY maintenance guides at au7o.io.
EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.
VEHICLE DESCRIPTION: PASSENGER VEHICLES. AN ELECTROLYTIC CAPACITOR CONTAINED IN THE AMPLIFIER FOR EACH REAR SPEAKER COULD LEAK AN ELECTROLYTE, WHICH MAY IN TIME AND IN THE PRESENCE OF HUMIDITY, CAUSE AN UNWANTED CONDUCTIVE PATH.
EQUIPMENT:MECHANICAL:ACCESSORY SCISSOR/SCREW/BOTTLE JACK/LIFT
INSTRUCTION LABEL IN THE TRUNK OF VEHICLE IS INCORRECT FOR THE JACK SUPPLIED WITH THE VEHICLE.
AIR BAGS:FRONTAL:SENSOR/CONTROL MODULE-INACTIVE
VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME AIR BAG SENSORS DO NOT COMPLY WITH AUDI'S DURABILITY STANDARDS OVER THE LIFETIME OF THE VEHICLE.
SERVICE BRAKES, HYDRAULIC:POWER ASSIST:VACUUM
THE BLADES IN THE BRAKE VACUUM BOOSTER PUMP CAN WEAR PREMATURELY, CAUSING REDUCED BRAKE ASSIST PRESSURE WHEN THE BRAKE PEDAL IS APPLIED.
POWER TRAIN:AXLE ASSEMBLY
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.
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According to Au7o's research across NHTSA recalls, manufacturer TSBs, and owner forum reports, the 1991 Audi 100 has 2 documented issues. The most frequently reported are: 1990-1991 Audi 100 3-Speed Automatic Transaxle Recall 93V006, 1991-1992 Audi 100 Rear-Speaker Amplifier Recall 01V324. Of these, 2 are rated critical and should be addressed promptly.
The 1991 Audi 100 has 2 known issues compiled from NHTSA recalls, manufacturer TSBs, and owner forum reports. 2 issues are rated critical: 1990-1991 Audi 100 3-Speed Automatic Transaxle Recall 93V006 and 1991-1992 Audi 100 Rear-Speaker Amplifier Recall 01V324. Prospective buyers should inspect for these issues and factor potential repair costs into their purchase decision. Regular maintenance following the manufacturer's schedule helps prevent many common problems.
NHTSA campaign 93V006 covers 1990-1991 Audi 100 passenger cars equipped with a 3-speed automatic transmission. The campaign states that differential oil could be lost over time through evaporation, causing premature bearing and gear wear. Eventual differential failure could remov… Severity: high.
NHTSA campaign 01V324 covers 1991-1992 Audi 100 passenger vehicles. An electrolytic capacitor in each rear-speaker amplifier could leak electrolyte; with humidity, that leakage could create an unwanted conductive path, overheat the amplifier and create a fire risk. The campaign d… Severity: high.
Content on this page was compiled with AI assistance using NHTSA complaints, TSBs, owner reports, and public automotive data. While we strive for accuracy, this information may contain errors. Always verify repair procedures and specifications with your vehicle's service manual or a qualified mechanic.
