AI Damage2001 Mercedes-Benz C Class: common problems
Owners of the 2001 Mercedes-Benz C Class filed 14 complaints with NHTSA, most often about electrical system and engine and cooling. Details by component below, with sources.
Key figures
- Owner complaints
- 14
What fails most often
- 1 Electrical system 29% of all complaints
- 2 Engine and cooling 21% of all complaints
- 3 Equipment 14% of all complaints
- 4 Exterior lighting 14% of all complaints
- 5 Powertrain 14% of all complaints
- 6 Visibility 14% of all complaints
- 7 Air bags 7% of all complaints
- 8 Service brakes 7% of all complaints
- Electrical system: 4 complaints (29% of all).
- Engine and cooling: 3 complaints (21% of all).
- Equipment: 2 complaints (14% of all).
- Exterior lighting: 2 complaints (14% of all).
- Powertrain: 2 complaints (14% 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
- 3.2 L · petrol · 6 cyl
- automatic, 5-speed
- manual, 6-speed
Drive: RWD
Symptoms owners describe
How many of the 14 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 | 4 | 0 | 0 |
| Engine and cooling | 3 | 0 | 0 |
| Equipment | 2 | 0 | 0 |
| Exterior lighting | 2 | 0 | 0 |
| Powertrain | 2 | 0 | 0 |
| Visibility | 2 | 0 | 0 |
| Air bags | 1 | 0 | 0 |
| Service brakes | 1 | 0 | 0 |
| Suspension | 1 | 0 | 0 |
| Vehicle speed control | 1 | 0 | 0 |
| Wheels | 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.
Battery drain, seems to come from defect in seat controller module. See 19 pages of forum: http://www.benzworld.org/forums/w203-c-class/1196568-mercedes-c320-battery-drain-11.html mercedes c240 2001, but many other models and years affected.
2001 mercedes c240. My wife was driving under normal conditions and the accelerator failed. The engine would go full throttle when in gear. She had to call a tow truck to have it towed to mechanic. He found the car computer had said the electronic accelerator was bad. A new accelerator was put in and no more problem.
Mercedez benz c 240 year 2001 has many defects that required several thousands of dollars . The dealership and the manufacturer did not provide any help.
April nov 2004, I purchased a 2001 c240 mercedes from princeton mercedes in new jersey. One month after driving the car slowed down as if it would not accelerated. I had to take it back in for repair. They told they could not find a problem.
The contact stated that the check engine indicator illuminated on the instrument panel. The dealer stated that the failure was due to a crankshaft center and thermostat issue. The crankshaft center caused the vehicle to overheat and it would not start until the engine cooled off.
Stalling in traffic caused by failure of crankshaft position sensor.
The air conditioning system failed in the c-240, 2006. I called for an appointment for diagnosis, and was given a date that put the car just out of extended warranty coverage. I discovered this after the fact. I had assumed that the air conditioner just needed charging again, and would not be covered.
The fm radio reception was poor. The clutch was rubbing. The srs light illuminated on the dash.
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 9,551 of 36,656 model years in the NHTSA data (top 26% most complained about).
On average one model year of the C Class has 11 complaints (17 years in the data). This year has 14, 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.
- 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 2001 Mercedes-Benz C Class?
Owner complaints to NHTSA most often mention: electrical system, engine and cooling, equipment. Total complaints: 14. The most frequent symptoms in complaint texts: airbag warning light (7%), battery drain (7%), A/C or heater (7%).
How many service bulletins (TSB) were issued for the 2001 Mercedes-Benz C Class?
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 2001 Mercedes-Benz C Class 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 2001 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.