There are 5 owner-reported electrical system complaints for the 2009 Mercedes-Benz E-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
Odometer Fraud. The contact purchased a 2009 Mercedes-Benz E350. The sale was a private sale. The contact's friend, a dealer, requested a Carfax report, which indicated that mileage was last reported at 200,000. In addition, the Carfax report indicated that the last reported repair service was performed in 2014 and the mileage then was 66,000. The contact stated that the advertisement reported the mileage at 88,000.
I WAS DRIVING MY MERCEDES E350 ON I-95 NORTH BOUND SOMEWHERE NEAR PHILADELPHIA. MY FAMILY INCLUDING MY WIFE AND MY TWO SONS WERE ALSO ON THE CAR. SOMEHOW, ALL OF SUDDEN, THE VEHICLE WAS NOT UNDER CONTROL, WHICH IS, THE VEHICLE QUICKLY SLOWED DOWN AND DESPITE THE FACT THAT I KEPT PRESSING THE GAS PEDAL, THE VEHICLE DID NOT MOVE (I BELIEVE THAT THE ENGINE WAS SHUT DOWN FOR SOME REASON). I HAD TO USE HAZARD SIGNALS TO WARN THE VEHICLES OF THE DRIVERS BEHIND ME. MEANWHILE, MY SON ADVISED ME TO PRESS THE SOS BUTTON OF MY VEHICLE. FORTUNATELY SOME DRIVERS NOTICED THAT MY VEHICLE WAS NOT MOVING AND SOME OF THEM HELP ME SWITCH THE TRANSMISSION TO NEUTRAL AND HELPED PUSH MY VEHICLE TO THE ROAD SIDE. WE ALSO GOT HELP FROM POLICE OFFICERS TO ESCORT MY FAMILY MEMBERS TO THE NEARBY TRAIN STATION AND MY VEHICLE WAS TOWED TO THE SERVICE DEPARTMENT OF RAY CATENA, EDISON, NJ, WHERE I PURCHASED THE VEHICLE. THE SERVICE ADVISER ASKED ME TO PAY $135 FOR THEM TO EXAMINE WHAT WAS WRONG WITH THE VEHICLE. MY CONCERN IS THAT MERCEDES E350 IS SUPPOSED TO BE A CAR WITH GOOD AND SAFE QUALITY, SO WHY DID IT HAPPEN TO MY VEHICLE. I ALWAYS HAVE MY CAR MAINTAINED BY MERCEDES SERVICE DEPARTMENT ON A SCHEDULED BASIS. I (AND MY FAMILY MEMBERS) COULD HAVE GOTTEN KILLED THAT DAY. I ALSO WORRY THAT AFTER THE VEHICLE IS REPAIRED, THE SAME OR SIMILAR SITUATION COULD HAPPEN AGAIN. SO PLEASE ADVISE WHAT I SHOULD DO WITH THIS EVENT. THANK YOU. *TR
TL* THE CONTACTS OWNS A 2009 MERCEDES BENZ E350. THE CONTACT STATED THAT THE VEHICLE FAILED TO START WITHOUT WARNING. THE VEHICLE WAS TOWED TO THE DEALER, BUT WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS UNAVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 45,000.
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ E300. WHILE PARKED, THE BRAKE WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT INSPECTED THE VEHICLE AND NOTICED THAT THE WIRING HARNESS WAS OVERHEATING ON THE PASSENGER SIDE, CAUSING THE CIRCUIT BOARD AND WIRES TO MELT. THE DRIVER SIDE HAD A BLACK HOLE DEVELOPING IN THE CIRCUIT BOARD. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTICS. THE TECHNICIAN STATED THAT THE WIRING HARNESS AND CIRCUIT BOARD WOULD HAVE TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 40,000.
I PURCHASED A 2009 MERCEDES E320 BLUETEC VEHICLE ON DECEMBER 10, 2008 WITH 18 MILES ON THE ODOMETER. JANUARY, 2009 THE CHECK ENGINE LIGHT STAYED ON AND THE DEALER REPLACED AN OXYGEN SENSOR. THE CAR HAD APPROXIMATELY 2000 MILES. AT 5000 MILES, THE CHECK ENGINE LIGHT STAYS ON. THE DEALER INFORMS AFTER ANOTHER DIAGNOSIS THAT THE PROBLEM IS THE SOFTWARE AND A PATCH HAS NOT BEEN DEVELOPED FOR THE 2009 MODELS. AT THIS TIME THEY CAN DETERMINED WHEN A FIX WILL BE READY. THEY SAY THE CAR IS SAFE TO DRIVE. *TR
Complaints are unverified consumer reports submitted to NHTSA. A high complaint count may reflect vehicle popularity, not defect severity. Data sourced from NHTSA public records.
Data synced from NHTSA on Apr 25, 2026