AI Damage1991 Audi 90: common problems
Owners of the 1991 Audi 90 filed 3 complaints with NHTSA, most often about electrical system and engine and cooling. Details by component below, with sources.
Key figures
- Owner complaints
- 3
What fails most often
- 1 Electrical system 33% of all complaints
- 2 Engine and cooling 33% of all complaints
- 3 Seat belts 33% of all complaints
- Electrical system: 1 complaints (33% of all).
- Engine and cooling: 1 complaints (33% of all).
- Seat belts: 1 complaints (33% of all).
Symptoms owners describe
How many of the 3 NHTSA complaints mention each symptom (automatic count from complaint text; one complaint can mention several).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Electrical system | 1 | 0 | 0 |
| Engine and cooling | 1 | 0 | 0 |
| Seat belts | 1 | 0 | 0 |
What owners report
Short excerpts of NHTSA complaints in the original wording. These are owner statements not verified by NHTSA; personal data removed.
This fuel line leak was discovered by my mechanic during an inspection of the exhaust. The line is located between a heat shield and the body of the car. Mechanic mentioned that there is the possibility of future leaks in the same area. I paid $100 for a repair of the line.
Driver's side restraint locked, not extracting or extending. Dealer has replaced the restraints.
Wire harness front shorted, caused fan to burn out, vehicle overheated and caught fire. Tt
When owners complained
NHTSA complaints by filing year. The peak shows at what age the problems show up most.
Comparison
By complaint count this model year ranks 17,150 of 36,656 model years in the NHTSA data (top 47% most complained about).
On average one model year of the 90 has 8 complaints (7 years in the data). This year has 3, below average.
What to check before buying
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Seat belts. Belt pretensioners after airbag deployment, SRS codes.
Other years of this model
Questions and answers
What are the most common problems with the 1991 Audi 90?
Owner complaints to NHTSA most often mention: electrical system, engine and cooling, seat belts. Total complaints: 3. The most frequent symptoms in complaint texts: overheating, coolant loss (33%), smoke, burning smell, fire (33%).
How many service bulletins (TSB) were issued for the 1991 Audi 90?
NHTSA lists 0 manufacturer service bulletins for this year. A bulletin tells dealers how to diagnose or fix a known issue; it is not a recall.
Should I buy a 1991 Audi 90 from a US auction?
Owner complaints describe defects, not crash damage. Before bidding, check the components listed above and review the lot photos: VinWind builds a report of visible and hidden damage by VIN.
Other 1991 models
Read also
Sources: public NHTSA data (USA): service bulletins and owner complaints; YouTube: links to videos credited to their authors. Complaints are owner statements not verified by NHTSA, and describe defects rather than crash damage. Data updated 2026-11-05.