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1990 Audi 100 Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1990 Audi 100

1990 Audi 100 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.

Problems with air leaks and the fuel injection may cause starting difficulties.

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1990 Audi 100 Questions

I looked online but couldn't find a simple illustration of the engine with lined labels or something similar.

Car starts first thing in morning after driving and turning the car off when I try to start the car it will not start. I can hear the starter moter spinning, but it will not engage. Is this a starter or solonid problem.

The response to my question on the electrical assembly indicated that I might have to remove the key cylinder. Just how do I remove that part? I don't see any access to that part.

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1990 Audi 100 Recalls

VEHICLE DESCRIPTION: PASSENGER VEHICLES. SOME AIR BAG SENSORS DO NOT COMPLY WITH AUDI'S DURABILITY STANDARDS OVER THE LIFETIME OF THE VEHICLE.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.THE VEHICLE CAPACITY WEIGHT WAS INADVERTANTLY OMITTED FROM PLACARD LOCATED INSIDE THE GAS FILLER DOOR, AS REQUIRED BY FMVSS 11O.

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