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.
Transmission & drivetrain
Audi 90 Transmission problems by year
2 complaints filed with NHTSA about the Audi 90's transmission & drivetrain. Harsh or delayed shifting, slipping, CVT shudder, rollaway, axles, driveshafts and transfer cases.
Transmission complaints by model year
Transmission recalls
Latest 90 transmission complaints
3Rd time in 14 days car in shop due to thermostat problem($300), fuel system($400), and know car stalling and smoke from underhood with temp gauge above normal. Car also taken in for cruise contol failure with no response to complaint & transmission that slips re-engaging for sudden stops. 2Nd time in 14 months needing new pads/rotors!!
When put in reverse, transmission delays then unexpectedly accelerates into reverse, also rpms are abnormally high in forward drive. *Ak
Source: U.S. National Highway Traffic Safety Administration (NHTSA) complaints and recalls, checked daily. Complaints are owners' own reports and are not verified. How we use the data