1990 Mercedes-Benz 300E: common problems
Owners of the 1990 Mercedes-Benz 300E filed 3 complaints with NHTSA, most often about tires and engine and cooling. Details by component below, with sources.
Key figures
- Owner complaints
- 3
What fails most often
- 1 Tires 67% of all complaints
- 2 Engine and cooling 33% of all complaints
- Tires: 2 complaints (67% of all).
- Engine and cooling: 1 complaints (33% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Tires | 2 | 0 | 0 |
| Engine and cooling | 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.
Please begin inspections for defects and recalls on tires and other parts, equipment. Please begin with 1990s models to the present for safety, crash, tire, compliance. Please find used vehicles and all new vehicles, to include vehicles at the manufacturers plants, locations, auto auctions, new and used car lots.
Radiator upper neck connector is made of plastic. Dealer informed consumer that he needs to replace radiator with a metal neck connector instead, but at consumer's expense.
The right rear (bridgestone re92 205/6015) tire experienced tread separation and blowout while driving.
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 300E has 8 complaints (5 years in the data). This year has 3, below average.
What to check before buying
- Tires. Tire age by DOT code, bulges, wear pattern.
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
Other years of this model
Questions and answers
What are the most common problems with the 1990 Mercedes-Benz 300E?
Owner complaints to NHTSA most often mention: tires, engine and cooling. Total complaints: 3.
How many service bulletins (TSB) were issued for the 1990 Mercedes-Benz 300E?
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 1990 Mercedes-Benz 300E 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 1990 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.