1994 Mercedes-Benz 600 Electrical system Problems
- Complaints
- 6about this part
- Share
- 75%of 8 total for the year
- Median mileage
- 82,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the electrical system of the 1994 Mercedes-Benz 600, 75% of the 8 complaints for this model year. Where a mileage was given, the median is 82,500 miles.
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 bought a car on ebay, the owner declared the car was fine and I proceeded with the sale. I drove up to pa. To pick the car up and the gentleman said the check engine light came on as soon as he started it that morning. We then went to a repair shop and they said it was a o2 sensor, and quoted me $200,00 installed. I declined and brought the car home to have my own people work on the car. When I went to the repair shop they told me the wiring harness was shot and had to be replaced. $2,000.00. …”
NHTSA complaint #10243123, filed 2008-09, 110,000 miles“I purchased a 1994 sl600 about 6 months ago which had only 56,000 mi on it. It was sold to me as a like new auto. Well, it is far from like new but the problem I will mention to you is the wiring harness which has virtually disintegrated and has to be replaced at an exorbitant price. The disintegrating wiring harness has caused me enormous problems with this car,not to mention the likelihood of being a fire hazard. I understand this is a well known problem with mercedes 91-96 models and I want to add my name to the lists of complaints.”
NHTSA complaint #10188056, filed 2007-04, 56,000 miles“I own a 1994 mercedes s600, 12 cylinder coupe. The car listed for $135,000 and currently has only 88,000 miles. It has been garaged since it was purchased and has been serviced exactly to manufacturers suggested schedule and always be an authorized dealer. I was recently advised by a service manager at mercedes in nashville that recent problems with handling and trouble lights were being caused by faulty wiring insulation which is well known by this dealer and also by mercedes .. I was advised by the nashville dealer that to repair the car would cost $14,000. …”
NHTSA complaint #10214605, filed 2008-01, 82,500 miles“Deteriorated insulation on eta harness and stating harness caused electrical short. Vehicle to stalled on the busy road. Main electrical harness and one of the eta's has been already replaced because of the same insulation issue.”
NHTSA complaint #10587645, filed 2014-05, 80,000 miles“Vehicle has had various anomalies occurring over several months involving engine sputtering and abundant smoke from engine. Numerous service attempts did not resolve problem as all clues were intermittent. Warning lights on dash for check engine srs asr and others would appear certain times upon ignition, while others appear next time. Finally, the vehicle would only start but not maintain idle independent of applying accelerator, and then only travel at a max speed of 20 MPH at 3000 RPM. …”
NHTSA complaint #10179001, filed 2007-01Electrical system: other model years
Other parts of the 1994 Mercedes-Benz 600
3 complaintsFuel system
2 complaintsTransmission and drivetrain
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 1994 Mercedes-Benz 600
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