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Electrical systemPart report

1993 Mercedes-Benz E Class Electrical system Problems

Complaints
7about this part
Share
100%of 7 total for the year
Median mileage
72,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 7 complaints about the electrical system of the 1993 Mercedes-Benz E Class, 100% of the 7 complaints for this model year. Where a mileage was given, the median is 72,500 miles. 1 a fire, according to the filers. 1 recall campaign on record is filed under a similar system.

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.

“The ignition module (also known as an ezl) in my 500e shorted out, causing me to lose spark to 4 out of 8 engine cylinders (one-half of my engine), and thru my car into limp-home mode, nearly causing an accident. This happened while I was beginning to merge onto the #405 freeway in los angeles. I believe the disintegrating engine wiring harness mercedes has installed in the majority of their model year 1991-1995 production is what caused this outrageously expensive module to fail, placing me in a very dangerous and tense situation. …”

NHTSA complaint #10152244, filed 2006-03, 70,000 miles

“Wiring harness: under hood top of motor failed. Sheathing has become brittle and individual wiring strands have melted together. Vehicle quit running and would not restart. Burnt wire could be smelled when hood was raised.”

NHTSA complaint #10056735, filed 2004-02, 131,050 miles

“My 1993 300ce wiring harness has totally dried up and cracked in numerous places. Resulting in internittant electrical problems and wasted dollars spent on trouble shooting.”

NHTSA complaint #10005860, filed 2003-02, 75,000 miles

“The contact stated while driving 20 MPH, the vehicle hesitated when the accelerator was depressed. Intense pressure on the accelerator pedal was required to accelerate the vehicle. After being taken to a private repair shop, the mechanic determined that the wiring harness was deteriorated. The battery was replaced, but the problems persisted. There was a NHTSA recall # 95v031000, which pertained to the wiring. The vehicle was not included in the recall due to the VIN. …”

NHTSA complaint #10172529, filed 2006-11, 53,090 miles

“The insulation on the enginine wireing harness has disentigrated. This is the engine / fuel injection wiring harness and is a major problem with 1991-1996 Mercedes-Benz m104 engines. This is a major fire risk as well as an accident hazard as it will cause the engine (and power steering, brakes, etc.) to fail at speed. Mercedes will not recall the part and relacement is thousands of dollars.”

NHTSA complaint #10196287, filed 2007-07

Related recalls

Electrical system: other model years

YearComplaintsShare of year
2006110%
2005111%
2004213%
2003920%
2002338%
2001320%
20001132%
1998417%
199725%
1996638%
19951571%
19943182%
19937100%

Other parts of the 1993 Mercedes-Benz E Class

Fuel system
1 complaints

← All problems reported for the 1993 Mercedes-Benz E 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