AI Damage1992 Mercedes-Benz 300: common problems
Owners of the 1992 Mercedes-Benz 300 filed 22 complaints with NHTSA, most often about electrical system and engine and cooling. Details by component below, with sources.
Key figures
- Owner complaints
- 22
- involving a crash
- 2
What fails most often
- 1 Electrical system 23% of all complaints
- 2 Engine and cooling 23% of all complaints
- 3 Service brakes 14% of all complaints
- 4 Vehicle speed control 14% of all complaints
- 5 Visibility 9% of all complaints
- 6 Air bags 5% of all complaints
- 7 Fuel system 5% of all complaints
- 8 Powertrain 5% of all complaints
- Electrical system: 5 complaints (23% of all).
- Engine and cooling: 5 complaints (23% of all).
- Service brakes: 3 complaints (14% of all), 1 of them with a crash reported by the owner.
- Vehicle speed control: 3 complaints (14% of all).
- Visibility: 2 complaints (9% of all).
Engines and transmissions
US-market versions per EPA. On the right: how many NHTSA complaints name this engine or transmission type.
- 2.6 L · petrol · 6 cyl
- 3 L · petrol · 6 cyl
- 3.2 L · petrol · 6 cyl
- 2.5 L · diesel · turbo · 5 cylnamed in 1 complaints
- 3.5 L · diesel · turbo · 6 cylnamed in 1 complaints
- automatic, 4-speed
- automatic, 5-speed
- manual, 5-speed
Drive: RWD, AWD
Symptoms owners describe
How many of the 22 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 | 5 | 0 | 0 |
| Engine and cooling | 5 | 0 | 0 |
| Service brakes | 3 | 1 | 0 |
| Vehicle speed control | 3 | 0 | 0 |
| Visibility | 2 | 0 | 0 |
| Air bags | 1 | 1 | 0 |
| Fuel system | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Suspension | 1 | 0 | 0 |
| Tires | 1 | 0 | 0 |
| Other | 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.
During frontal impact at 25-30 mph, the driver's and passenger's side air bags did not deploy.
I was driving down the street when smoke began to come from beneath the hood and into the vehicle. I pulled over and opened the hood and saw flames coming out from underneath the battery compartment. After extinguishing the fire the car no longer started. Upon inspection all of the electrical wiring had melted.
While driving my battery light comes on. I have replaced my battery twice in a 2-year period. Initially, my car wouldn't start. I was told that even while my car was off, something was consantly running causing my battery to fail.
Failures of goodyear aquatred tires. While on a trip the tread of the left rear tire came loose from the steel cord. This caused a wobble while driving. The next day the front right tire blewout at the sidewall.
While driving on highway, I slowed to turn off highway. After completing turn tried to accelerate but engine would not accelerate. Was able to move the car off roadway at idle rpm only. Car towed to local shop.
Failure of vehicle part on 1992 mercedes-benz 300d. There was another recall regarding the headlamp wiper arm (visibility).
While driving 50 mph the accelerator pedal went down to the floor and the vehicle suddenly decelerated. A mechanic at an auto repair shop determined the accelerator cable broke.
The entire windshield wiper system was replaced, which included the motor. Ph
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 7,904 of 36,656 model years in the NHTSA data (top 22% most complained about).
On average one model year of the 300 has 9 complaints (22 years in the data). This year has 22, above 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.
- Service brakes. Pedal feel, ABS operation, leaks, discs and hoses.
- Vehicle speed control. Accelerator pedal, cruise control, throttle codes.
Other years of this model
Questions and answers
What are the most common problems with the 1992 Mercedes-Benz 300?
Owner complaints to NHTSA most often mention: electrical system, engine and cooling, service brakes. Total complaints: 22. The most frequent symptoms in complaint texts: smoke, burning smell, fire (14%), airbags did not deploy (5%), brake failure (5%).
How many service bulletins (TSB) were issued for the 1992 Mercedes-Benz 300?
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 1992 Mercedes-Benz 300 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 1992 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.