1994 Mercedes-Benz C Class Electrical system Problems
- Complaints
- 10about this part
- Share
- 67%of 15 total for the year
- Median mileage
- 121,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 10 complaints about the electrical system of the 1994 Mercedes-Benz C Class, 67% of the 15 complaints for this model year. Where a mileage was given, the median is 121,000 miles. 3 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was pulling into a gas station to fill up, then all of a sudden a few warning lights came on and smoke started pouring out of my heater vents. Opened the hood and saw a melted wiring harness, and further inspection showed me that the rubber was falling off of the wires, disintegrated.”
NHTSA complaint #10184478, filed 2007-03, 120,000 miles“I recently acquired this 1994 c-class 4 cyl from my father who drove it very little around town. It only had 108,000 miles on when I got it in feb., 2008. On march 24, 2008 I had to put the car in the shop because it was running very rough. I paid $1,400.00 for a new lower engine wiring harness to be installed. Today aug. 12,2008 I will be picking up my car at the shop for the upper wiring harness to be replaced for the cost of $450.00. These replacements are both due to the harnesses cracking, and splitting throughout the whole wiring harnesses. …”
NHTSA complaint #10237934, filed 2008-08, 108,000 miles“The wire harness on this car is completely stripped of insulation. The bare wires are hanging in the engine compartment. The car runs poorly and sometimes feels like it will stall. The check engine lights come on in the dash constantly which requires diagnosis. I have decides it is too costly to get diagnosis done regularly so I just unplug the battery to reset the computer. In addition to the fire hazard, accident hazard, now I am covering up other possible potential problems by disregarding check engine lights on the dash. Mercedes will not do one thing to assist on this problem. …”
NHTSA complaint #10129347, filed 2005-07, 70,000 miles“Fire and sparks caused by mercedes engine wire harness! The engine wire harness was poorly made, and was insulated below standard. I just found out this is a common problem with mercedes .they should recall all their vehicles for safety! Mercedes vehicle not safe if they do not correct this huge problem!”
NHTSA complaint #10415440, filed 2011-07, 140,000 miles“Engine wiring harness has brittle insulation; has hundreds of cracks; insulation is falling off of wires; is short circuiting, motor is running rough; missing some; sounds like its not running on all cylinders. Wiring harness is heating where it is short circuiting. I have seen some smoking; was on fire once so far.”
NHTSA complaint #10214319, filed 2008-01, 128,000 milesElectrical system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2008 | 7 | 54% |
| 2006 | 1 | 11% |
| 2005 | 1 | 20% |
| 2004 | 2 | 13% |
| 2003 | 3 | 33% |
| 2002 | 10 | 32% |
| 2001 | 4 | 29% |
| 2000 | 1 | 13% |
| 1999 | 3 | 43% |
| 1996 | 5 | 83% |
| 1995 | 45 | 92% |
| 1994 | 10 | 67% |
Other parts of the 1994 Mercedes-Benz C Class
2 complaintsEngine cooling
2 complaintsFuel system
2 complaintsVehicle speed control
1 complaints
← All problems reported for the 1994 Mercedes-Benz C Class
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology