There are 9 owner-reported engine complaints for the 2011 Mercedes-Benz E-Classin NHTSA's database. These are unverified consumer reports and may not reflect confirmed defects.
OIL LEAK AT 90K MIKES
TL* THE CONTACT OWNS A 2011 MERCEDES BENZ E350. THE CONTACT STATED THAT THERE WAS ABNORMAL LEAKAGE UNDER THE VEHICLE AND AN ABNORMAL DIESEL ODOR. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE OIL COOLER GASKET NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER AS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 41,150. UPDATED 02/26/16*LJ; 05/02/18*JB
VEHICLE WAS SHIFTED TO NEUTRAL, A LOUD THUMP WAS HEARD STOPPING THE CAR. VEHICLE WAS PUT BACK INTO DRIVE WITH LOSS OF POWER ULTIMATELY LEADING TO NO POWER TO THE WHEELS. DIAGNOSTIC WORK LEAD TO SEVERAL CODES RELATING TO TRANSMISSION PROBLEMS AND FAILURE.
OIL COOLER LEAKING OIL. THIS IS A $2200.00 FIX. I SHOULD NOT BE EXPERIENCING THIS ON A $50,000.00 AUTOMOBILE WITH LESS THAN 100,000 MILES ON IT. MERCEDES BENZ MBUSA SHOULD BE FIXING THIS PROBLEM AT THEIR OWN EXPENSE. *TR
REAR MAIN ENGINE OIL SEAL ON THE MERCEDES-BENZ E350 BLUETEC FAIL AFTER 90,000 MILES, THE PROBLEM IS THAT THE ENGINE HAS NOT BEEN BROKEN IN YET AND IT'S LEAKING FROM THE REAR MAIN ENGINE OIL SEAL. THIS IS A $1300.00 PLUS FIX AND I SHOULD NOT BE EXPERIENCING ON $50,000.00 AUTOMOBILE WITH LESS THAT 200,000 MILES ON IT. MERCEDES-BENZ SHOULD BE FIXING THIS PROBLEM AT THEIR EXPENSE NOT MINE. *TR
TL* THE CONTACT OWNED A 2011 MERCEDES BENZ E350. WHILE APPROACHING A STOP SIGN, THE CONTACT DETECTED A STRONG BURNING SMELL INSIDE THE VEHICLE. THE CONTACT AND THE FOUR PASSENGERS EXITED THE VEHICLE AND NOTICED THAT THE UNDERCARRIAGE WAS ON FIRE. THE FIRE ORIGINATED FROM UNDER THE HOOD AND CONTINUED TO THE UNDERCARRIAGE AND DRIVER SIDE DOOR. THE VEHICLE BECAME COMPLETELY ENGULFED IN FLAMES. THE FIRE DEPARTMENT EXTINGUISHED THE FLAMES. A POLICE REPORT WAS FILED AS WELL AS AN INCIDENT REPORT BY THE FIRE DEPARTMENT. THE VEHICLE WAS DESTROYED. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 49,000.
TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ E350. THE CONTACT STATED THAT WHILE DRIVING 35 MPH, THE VEHICLE WENT INTO LIMP MODE AND WOULD NOT ACCELERATE PAST 30 MPH. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION AND THEY STATED THAT DUE TO EXCESSIVE BIO DIESEL, THE ENGINE NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 20,000.
BEGINNING SOMETIME IN MAY 2013, THE CAR BEGAN LEAKING FUMES INTO THE PASSENGER CABIN WHICH MADE ME VERY ILL. AFTER TAKING IT TO BOTH PARK PLACE MERCEDES HERE IN DALLAS, AND THEN MERCEDES BENZ OF PLANO, NEITHER SERVICE DEPARTMENT COULD DETERMINE WHAT WAS WRONG WITH THE VEHICLE. AFTER REPEATED ATTEMPTS TO GET TO THE BOTTOM OF THE MATTER WITH PARK PLACE, I TOOK IT TO MERCEDES BENZ OF PLANO IN NOVEMBER 2013. THEY EVALUATED THE CAR, CHANGED THE BATTERY, AND GAVE THE CAR BACK TO ME IN DECEMBER OF 2013 FOR A WEEKEND, CLAIMING IT WAS FIXED. THE CAR, HOWEVER, WAS CONTINUING TO LEAK FUMES INTO THE PASSENGER CABIN, SICKENING ME AGAIN. I RETURNED THE CAR TO THEM FOR FURTHER EVALUATION. THEY CLAIMED TO HAVE REPAIRED IT, BUT INSTEAD OF GETTING IN THE CAR, I SENT AN INDUSTRIAL HYGIENIST TO TEST THE INSIDE AIR OF THE CAR, AFTER STARTING IT UP AND LETTING IT RUN FOR ABOUT 15 MINUTES. THAT TEST FOUND UNUSUALLY LARGE CONCENTRATIONS OF ETHANOL, PROPENE, ISOPROPANOL, ACETONE, TOLUENE, HEXANE, AND CYCLOHEXANE -- CHEMICALS WHICH ALL APPEAR TO BE COMPONENTS OF GASOLINE. I AM STILL, AS OF THIS WRITING, IN OCTOBER 2014, WRANGLING WITH MERCEDES BENZ AND MERCEDES BENZ OF PLANO OVER REPAIR TO MY CAR. I WOULD BE HAPPY TO PROVIDE YOU WITH A COPY OF THE REPORT OF THE AIR TEST FROM THE INTERIOR OF MY 2011 MERCEDES BENZ E550 COUPE. *TR
1.ENGINE MOUNTS & TRANSMISSION MOUNTS COLLAPSED. This is the second time in 10 years that this is happening. It happened at the two year mark & Mercedes Benz made me pay for half of it. Now 8 years later it is happening again. They are asking $2,130.00 to replace it. 2. OIL FILTER GASKET Found severe oil links from oil filter housing. they are asking $1189.13 to replace it. this also happened 8 years ago & they made me pay for half of it as well.
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