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Electrical systemPart report

1996 Mercedes-Benz E320 Electrical system Problems

Complaints
12about this part
Share
27%of 45 total for the year
Median mileage
125,500miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 12 complaints about the electrical system of the 1996 Mercedes-Benz E320, 27% of the 45 complaints for this model year. Where a mileage was given, the median is 125,500 miles. 1 of these say a crash was involved and 2 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 have a 1996 E320 and the first thing to go was the condenser fan, when you turn the AC on its the fans that help keep your car cool, but then that went out and my car would run hot if I constantly ran AC. Then my AC blower just went out one day. Then I took it to a mercedes specialist and he noticed that the wiring harness was frail and worn. He called my car a time bomb and said it would be a matter of time before it died on me. But I thought that mercedes last a long time. …”

NHTSA complaint #10162824, filed 2006-07, 138,000 miles

“Up until about 6 months ago, the only problems to my vehicle had been due to routine maintenance. About that time, my 1996 mercedes benz E320 began running rough. I took my vehicle to a reputable (mercedes benz only) shop who replaced 2 coils. Although the vehicle ran good for a few days, it soon began running rough. A follow up visit LED c & g mercedes, in houston, texas, to find that the problem was related to it's wiring harness, that resulted from a common problem to this and other models, due to premature corrosion of the insulation of the wires. …”

NHTSA complaint #10259251, filed 2009-02, 113,000 miles

“My car seem not to be starting all the time when I turn the ignition key on. Mercedes service informed me that the wire harness needs to be replace and there are bare wire exposed and this could be causing the problem. The informed me that the material was made with biodegradable material and that's why this is occurred. I informed the dealer that this is a safety hazard and should be fixed by mercedes as a campaign rather than charge the owner 1,500 dollars to fix. The dealer said to not touch the wire harness and eventually the car will stop running. …”

NHTSA complaint #10207479, filed 2007-10, 150,550 miles

“Our low mileage 1996 E320 mercedes check engine light keeps going and remaining on.(for years now) the code comes up advising that a switch on the automatic trans.is faulty. Had mb replace it and a week later it came up with the same code. Mb has looked at it numerous times, the last time I was charged. I have had to replace the ignition switch at 55,000 miles (mb-$650.) they charged me for another hour as they said that the wiring harness was damaged. I told them that this was a one owner car serviced at mb and nothing in the dash had ever been taken apart before. They claim it had been . …”

NHTSA complaint #10292085, filed 2009-11, 45,000 miles

“My vehicle was parked in front of store allowing a 93 year old lady to go shopping,as I was parked there I was sideswiped, I immediately took it to the auto shop to have it repaired, after doing this I discovered that the key can't start the car because the ignition is jammed or key will not turn, so the car won't start. I called a locksmith and discovered that the ignition is defected.”

NHTSA complaint #10520979, filed 2013-06

Related service bulletins

Electrical system: other model years

YearComplaintsShare of year
2009113%
2007212%
200625%
2005167%
2004136%
20032110%
2002417%
20011334%
2000818%
1999810%
199813%
199758%
19961227%
19958993%
1994764%

Other parts of the 1996 Mercedes-Benz E320

Suspension
19 complaints
Air bags
5 complaints
Body and structure
5 complaints
Engine cooling
4 complaints
Fuel system
4 complaints
Steering
3 complaints
Equipment
2 complaints
Engine
1 complaints
Seat belts
1 complaints
Tires
1 complaints

← All problems reported for the 1996 Mercedes-Benz E320

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