1997 Mercedes-Benz 300: common problems
Owners of the 1997 Mercedes-Benz 300 filed 5 complaints with NHTSA, most often about engine and cooling and electrical system. Details by component below, with sources.
Key figures
- Owner complaints
- 5
What fails most often
- 1 Engine and cooling 40% of all complaints
- 2 Electrical system 20% of all complaints
- 3 Exterior lighting 20% of all complaints
- 4 Powertrain 20% of all complaints
- 5 Seats 20% of all complaints
- 6 Service brakes 20% of all complaints
- 7 Visibility 20% of all complaints
- Engine and cooling: 2 complaints (40% of all).
- Electrical system: 1 complaints (20% of all).
- Exterior lighting: 1 complaints (20% of all).
- Powertrain: 1 complaints (20% of all).
- Seats: 1 complaints (20% of all).
Components owners complain about
| Component | Owner complaints | involving a crash | Technical service bulletins (TSB) |
|---|---|---|---|
| Engine and cooling | 2 | 0 | 0 |
| Electrical system | 1 | 0 | 0 |
| Exterior lighting | 1 | 0 | 0 |
| Powertrain | 1 | 0 | 0 |
| Seats | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Visibility | 1 | 0 | 0 |
| Other | 2 | 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.
Repeated service calls to correct problem since car had approximatekly 6,000 miles. One service repair cost $1,674. Which did not correct the problem. Nw engine check light appeared car back to dealer for sixth time car has 17, 450 miles at this time.
Right front running light failed several times, after last repair the "light defective" dashboard signal still warning of defective light.
The tachometer skipps over 2,000 rpm for a feew seconds while the car continued moving without any noticeable surging.
Vehicle has one windshield wiper which does not sufficiently clear the windshield in rainy weather conditions. Please give any further details.
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 14,282 of 36,656 model years in the NHTSA data (top 39% most complained about).
On average one model year of the 300 has 9 complaints (22 years in the data). This year has 5, below average.
What to check before buying
- Engine and cooling. Radiator and fan after a frontal hit, coolant level and condition, overheating.
- Electrical system. Scan all modules, test the battery and alternator, inspect connectors near the impact zone.
- Exterior lighting. Headlamps, leveling, sensors and mounts after a frontal hit.
- Powertrain. Shift quality under load, harsh shifts, transmission codes, CV joints.
Other years of this model
Questions and answers
What are the most common problems with the 1997 Mercedes-Benz 300?
Owner complaints to NHTSA most often mention: engine and cooling, electrical system, exterior lighting. Total complaints: 5. The most frequent symptoms in complaint texts: unintended acceleration (20%).
How many service bulletins (TSB) were issued for the 1997 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 1997 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 1997 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.