IllustrationCAR WAS NOT STARTING BROUGHT TO MERCEDES DEALER REPLACED A SENSOR AND THE MECHANIC AND ADVISOR SHOWED ME THE WIRE HARNESS TOLD ME I SHOULD CHANGE IT IT IS BRITTLE AND I WILL HAVE FUTURE PROBLEMS I ONLY HAVE 60,000 MILES ON THIS VECHICLE
1994 Mercedes Benz E320
Owner reports · Recalls · Investigations
Limited comparison data
There is not enough comparable history to draw a useful model-year comparison.
About this comparison →How this year compares
Owner complaints by model year
Compare all E320 years →Counts vary with age, sales and reporting. They are not failure rates.
What owners reported most
All reported categories
Tap a category to read its complaints. One report may name several components.
When problems were reported
Mileage at the reported incident
Limited mileage data: 8 of 11 reports include usable mileage. There isn’t enough coverage to show a useful chart.
NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.
What to inspect
Issues worth paying extra attention to based on owner reports.
- Electrical System. Review the 7 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Vehicle Speed Control. Review the 3 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
- Engine. Review the 2 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
NHTSA owner reports · September 18, 2026 snapshot.
1 crash reports1 fire reports1 injury reports
Engine complaints
2 reportsUNDER NORMAL DRIVING CONDITION ENGINE STARTED REVVING UP TO ABOUT 3500 RPM AS IF I PRESSED THE ACCELERATOR PEDAL. FREAKY EXPERIENCE BUT LUCKILY THE ROAD WASN'T TOO BUSY. I SLOWED DOWN TO THE SIDE OF THE ROAD (WAS DRIVING IN PORTLAND OREGON INNER CITY AREA) BY PRESSING THE BRAKES AND FLIPPING THE CAR INTO NEUTRAL BUT THE ENGINE K…
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UNDER NORMAL DRIVING CONDITION ENGINE STARTED REVVING UP TO ABOUT 3500 RPM AS IF I PRESSED THE ACCELERATOR PEDAL. FREAKY EXPERIENCE BUT LUCKILY THE ROAD WASN'T TOO BUSY. I SLOWED DOWN TO THE SIDE OF THE ROAD (WAS DRIVING IN PORTLAND OREGON INNER CITY AREA) BY PRESSING THE BRAKES AND FLIPPING THE CAR INTO NEUTRAL BUT THE ENGINE KEPT REVVING UP AROUND 3000-4000RPM. WHEN I TURNED THE ENGINE OFF AND STARTED IT AGAIN, IT WASN'T SO BAD BUT THE ENGINE WAS STILL REVVING UP AND DOWN BY ITSELF BETWEEN ABOUT 750 AND 2000RPM. I ALSO NOTICED THAT THE CAR HAD GONE INTO - WHAT I LATER READ ON INTERNET TO BE CALLED - LIMP HOME MODE WHICH MADE IT VERY ANNOYING FOR ME TO DRIVE. RESEARCH ON INTERNET TELLS ME MY E320 WAGON WITH THE M104 ENGINE HAS A TYPE OF BIODEGRADABLE ENGINE WIRING HARNESS WHICH FALLS APART AND SHOULD BE REPLACED. I LOVE MY MERCEDES AND IT DRIVES BEAUTIFULLY, BUT THAT WIRING HARNESS PROBLEM MAKES IT A PROBLEMATIC CAR, AND DANGEROUS TOO. I AM NOT WILLING TO SPEND $1,500 ON A NEW HARNESS FROM THE DEALER, SINCE IT IS NOT A RESULT OF BAD MAINTENANCE, BUT MORE A DESIGN FLAW BY MERCEDES BENZ AG. THEY SHOULD TAKE THEIR RESPONSIBILITY AND DO A RECALL. SURPRISED THEY DIDN'T ALREADY DO THAT (DID THEY?) AS I CAN IMAGINE THE BIG DAMAGE TO THE MERCEDES BENZ NAME AND IMAGE IF SOMEBODY WERE TO END UP IN A FATAL CAR CRASH DUE TO A BIODEGRADABLE WIRING HARNESS PROBLEM. THANKS. *TR
Official recalls
0No recalls in this snapshot.
Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗
NHTSA investigations
0No exact-year investigations in this snapshot.