Home · 2011 Mercedes-benz E-class Cabrio · Complaints

What 295 owners told NHTSA about the 2011 Mercedes-benz E-class Cabrio

These are the actual owner complaints behind this car’s reliability verdict, filed with the federal government, unedited. They’re unverified reports, not confirmed defects: read them as leads for your pre-purchase inspection, not a diagnosis.

All (295)Crash / fire / injury (18)Airbags (140)Suspension (37)Fuel system (36)Body & structure (16)Brakes (16)Engine (15)Steering (12)Transmission & drivetrain (10)Electrical system (7)Seats (7)

Newest first · 295 complaints · page 11 of 12

Sep 26, 2016Airbags

TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ E550. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBERS: 16V061000 (AIR BAGS) AND 16V3630000 (AIR BAGS); HOWEVER, THE PARTS FOR THE RECALL REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIRS. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA ODI 10909711

Sep 20, 2016Suspension

SUSPENSION. ON VEHICLE IS LOPSIDED ALSO NOT ABLE TO RAISE OR DRIVE COMFORTABLE BE THE SUSPENSION IS NOT LEVEL. VEHICLE IS NOT DRIVABLE IN MY OPINION. EVERY TIME I'M COME OUTSIDE THE CAR IS EITHER LEANING TO ONE SIDE OR ON THE FLOOR.

NHTSA ODI 10908174

Aug 29, 2016Airbags

TAKATA RECALL . MERCEDES HAS SENT 2 LETTERS INDICATING DEATH MAY OCCUR FROM DEFECTIVE AIRBAGS. DEFECT IS EVEN MORE SERIOUS FOR US BECAUSE WE ARE ON A BLOOD THINNER AND BLEEDING CAUSED BY DEFECT COULD NOT BE STOPPED. DEALER INDICATES THAT CAR MAY NOT BE SOLD OR DRIVEN. MERCEDES SHOULD EITHER CORRECT DEFECT OR PROVIDE A REPLACEMENT CAR UNTIL DEFECT IS CORRECTED. THE NYT ARTICLE YESTERDAY INDICATES THAT MOST OTHER CAR COMPANIES, INCLUDING BMW, DO PROVIDE REPLACEMENT CARS. MERCEDES' STONEWALLING IS OUTRAGEOUS PARTICULARLY IN LIGHT OF THIER DECISION TO SAVE A FEW BUCKS AND PUT THE PURCHASERS AT RISK. MERCEDES CHOSE TO BE A CHEAPSKATE AND SHOULD NOW SUFFER THE CONSEQUENCES, NOT US INNOCENT PURCHASERS. THE MERCEDES TELEPHONE HOTLINE IS INOPERATIVE...THEY CLAIM TO BE BUSY AND NEVER ANSWER. THE RECORDING ALSO, CONTRARY TO THE LETTERS, CLAIMS THAT THERE IS NO DANGER? WHICH IS CORRECT? - THE LETTERS OR THE RECORDING? IF IT IS THE LETTERS,THEN THE RECORDING WOULD SEEM TO BE A LIE AND MERCEDES SHOULD BE PUNISHED FOR THAT. THE NHSTA SHOULD BE FINING MERCEDES FOR THEIR STONEWALLING AND DEMAND THAT THEY FIX THE DEFECT OR PROVIDE A REPLACEMENT.

NHTSA ODI 10899174

Aug 28, 2016BrakesFuel system

BRAKE LINE CORRODED LEAKING. FUEL LINE CCORRODED

NHTSA ODI 10902081

Aug 22, 2016Suspension

I BOUGHT 2011 E550 BASE SEDAN LAST YEAR. IT HAD 25K MILES ON IT, AND 2 MONTHS LATER MY REAR SUSPENSION BEGAN LEAKING AND COST ME 2K IN REPAIRS. THE CAR WOULD LEAK OUT AIR FROM SUSPENSION OVER COUPLE HOURS. DEALER OR MY AFTERMARKET WARRANTY WOULDN'T COVER THIS PROBLEM BECAUSE IT'S NOT ON THE CONTRACT, BUT I'M NOT THE FIRST ONE WITH THIS ISSUE. WE SHOULDN'T BE BUYING NEW AIRBAG SUSPENSION ON A CAR THAT HAVEN'T HAD THE ORIGINAL TIRES REPLACED YET.

NHTSA ODI 10897712

Aug 21, 2016Fuel system

ALL OF A SUDDEN, ONE DAY AFTER FILLING MY TANK, THERE'S NOW AN OVERWHELMING GAS SMELL PRESENT BOTH ~20 FEET AWAY FROM VEHICLE, AND INSIDE THE CAR. IT IS SO BAD, I HAVE TO LEAVE WINDOWS DOWN FOR 20-30 MINUTES WHILE DRIVING BEFORE THE ENVIRONMENT BECOMES TOLERABLE WITH THE WINDOWS UP. I HAVE READ THAT OTHER SIMILAR E350 MODELS HAVE THIS PROBLEM, BUT MY NEWER (2011) YEAR MODEL DOESN'T APPEAR TO BE ON THE EXTENDED WARRANTY REPAIR LIST. I BELIEVE I HAVE EXACTLY THE SAME ISSUE OTHERS HAVE DESCRIBED BECAUSE THE SMELL OF GAS IS VERY STRONG AFTER A TOP-OFF, AND GETS GRADUALLY BETTER, BECOMING MUCH LESS NOTICEABLE AS FUEL TANK LEVEL APPROACHES 1/2 TANK AND BELOW.

NHTSA ODI 10897482

Aug 19, 2016Airbags

TL* TAKATA RECALL. THE CONTACT OWNS A 2011 MERCEDES-BENZ E350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBERS: 16V081000 (AIR BAGS) AND 16V363000 (AIR BAGS); HOWEVER, THE PART TO DO THE REPAIR WAS UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. UPDATED 10/05/16*LJ *TR

NHTSA ODI 10897199

Aug 5, 2016Airbags

TAKATA RECALL: I WAS NOTIFIED IN JANUARY 2016 THAT MY TAKATA AIRBAG COULD CAUSE SERIOUS INJURY AND AS OF TODAY, AUGUST 4,2016 THERE IS NO REMEDY. THE MERCEDES DEALER TELLS ME I SHOULD BE OK TO DRIVE MY CAR BUT I FEEL IF THERE IS A SAFETY ISSUE THAT'S IMPORTANT ENOUGH TO RECALL THEY SHOULD BE REPLACING MY VEHICLE WITH A MODEL THAT DOESN'T HAVE A SAFETY RECALL OR FIXING THE ISSUE. I HAVE HAD NO INJURIES OR ACCIDENTS IN MY VEHICLE. THIS IS A COMPLAINT ABOUT THE DELAY IN FIXING A KNOWN SAFETY ISSUE.

NHTSA ODI 10893334

Aug 2, 2016Airbags

TL* TAKATA RECALL. THE CONTACT OWNS A 2011 MERCEDES-BENZ E550. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V081000 (AIR BAGS) AND STATED THAT THE PART NEEDED FOR THE REPAIR WAS NOT AVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. VIN TOOL CONFIRMS PARTS NOT AVAILABLE.

NHTSA ODI 10892524

Jul 26, 2016SeatsFire

TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ E350. WHILE DRIVING 50 MPH, THE CONTACT NOTICED AN ABNORMAL SMOKE ODOR IN THE VEHICLE. THE CONTACT STATED THAT THE HEATING ELEMENT IN THE DRIVER SEAT BECAME OVERHEATED AND BURNED THROUGH THE LEATHER SEAT CUSHION AND THE CONTACT'S PANTS. THERE WERE NO INJURIES. THE VEHICLE WAS NOT TAKEN TO BE DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 87,890. THE VIN WAS UNAVAILABLE.

NHTSA ODI 10888754

May 25, 2016

WHILE ENTERING ONTO THE SOUTHERN STATE PARKWAY IN LONG ISLAND N.Y., GOING ABOUT 45 MPH, FOR REASONS NOT KNOWN MY SUNROOF COMPLETELY SHATTERED. MY SUNROOF WAS COMPLETELY CLOSED AT THE TIME.

NHTSA ODI 10870891

Apr 15, 2016Brakes

TL* THE CONTACT OWNS A 2011 MERCEDES-BENZ E550. UPON INSPECTING THE VEHICLE, THE CONTACT DISCOVERED THAT THE FAILURE WITH THE ADAPTIVE CRUISE CONTROL MAY HAVE BEEN ASSOCIATED WITH THE FRONT AND REAR BRAKING SYSTEM. AS THE FAILURE PROGRESSED, THE FRONT BRAKES OVERHEATED AND WARPED PREMATURELY DUE TO THE FRONT DISCS AND ROTORS. THE DEALER CONFIRMED THAT THE ROTORS WERE WARPED AND REPLACED THE FRONT AND REAR BRAKE PADS AND ROTORS. THE FAILURE RECURRED WITH THE BRAKES HAVING A STRONG SENSATION, OVERHEATING, AND CAUSED THE VEHICLE TO BE UNSTABLE WHEN THE BRAKES WERE APPLIED. THE FAILURE MILEAGE WAS NOT AVAILABLE.

NHTSA ODI 10855669

Feb 2, 2016SeatsEngine

1. OIL LEAK FROM THE OIL COOLER ASSEMBLY IN THE DIESEL ENGINE. OBVIOUSLY, A CHEAP GASKET WAS USED TO SEAL IT! MB, WITH DIESEL EXPERIENCE OF OVER 80 YRS, SHOULD KNOW BY NOW WHAT MATERIAL THEY USE IN THEIR DIESEL ENGINE. THIS DEFECT WILL DEVELOP IN EVERY CAR THEY MADE IN THE SAME WAY AND THEY SHOULD RECALL THE CARS AND CORRECT THE ISSUE 2. THE DRIVER SEAT IS TORN ALONG THE TUFT IN THE SEAT.THIS IS HAPPENING ACROSS THE BOARD ION ALL MB CARS USING THE SAME MATERIALS. AGAIN, IT IS A MATERIAL ISSUE AND SHOULD BE CORRECTED. OLD MB SEATS LASTED FOR DECADES!

NHTSA ODI 10823698

Dec 2, 2015Engine

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

NHTSA ODI 10807933

Nov 26, 2015Speed controlElectronic Stability Control (esc)

ON TWO OCCASIONS (ONCE FROM A STOP AND ONCE WHILE MOVING AT 30 MPH) I HAVE PRESSED THE GAS PEDAL TO THE FLOOR TO ACCELERATE QUICKLY AND THE CAR HAS MALFUNCTIONED. BOTH TIMES THE ELECTRONIC STABILITY CONTROL IMMEDIATELY BECAME DISABLED, THE ESC WARNING INDICATOR LIGHTS CAME ON, AND THE ENGINE STOPPED RESPONDING TO MY PRESSING THE GAS PEDAL. I WAS ABLE TO MAINTAIN FORWARD MOVEMENT BUT I COULD NOT ACCELERATE. I COULD PRESS THE PEDAL TO THE FLOOR WITHOUT THE RPM GAUGE NEEDLE MOVING. THERE WAS A REAL DANGER OF BEING HIT FROM BEHIND WHEN THIS HAPPENED BECAUSE I WAS SLOWING DOWN UNEXPECTEDLY. I PULLED TO THE SIDE OF THE ROAD, TURNED OFF THE CAR, AND RESTARTED IF AFTER ABOUT 6 SECONDS. ONCE I RESTARTED EVERYTHING RETURNED TO NORMAL. I HAVE NEVER HAD A CAR IN WHICH I LOSE THE ABILITY TO CONTROL SPEED BY PRESSING THE GAS TOO HARD. I AM TOLD IT IS SOME TYPE OF "SAFETY" FEATURE TO PROTECT THE TRANSMISSION ("LIMP HOME MODE") BUT I FIND IT TO BE VERY DANGEROUS. I WOULD RATHER DESTROY A TRANSMISSION AND HAVE THE CAR RESPOND TO MY COMMANDS THEN HAVE A COMPUTER DECIDE TO TURN OFF THE ACCELERATOR WHILE I AM DRIVING AND RISK A REAR END COLLISION. I SEE SOME SIMILAR COMMENTS ABOUT THIS ON THE INTRANET FOR MERCEDES.

NHTSA ODI 10807091

Oct 18, 2015Engine

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.

NHTSA ODI 10783123

Jul 27, 2015Speed control

TL* THE CONTACT OWNS A 2011 MERCEDES BENZ E350. THE CONTACT STATED THAT THE VEHICLE WOULD ACCELERATE INDEPENDENTLY WHEN AT A STOP SIGN. THE BRAKE PEDAL WAS DEPRESSED IN ORDER TO STOP THE VEHICLE. THE FAILURE RECURRED SEVERAL OCCASIONS. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 38,000.

NHTSA ODI 10861126

May 7, 2015Engine

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

NHTSA ODI 10715221

Apr 26, 2015Engine

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

NHTSA ODI 10712946

Mar 1, 2015Steering

EXCESSIVE STEERING WHEEL VIBRATION WHEN BRAKING FROM 50-40MPH. CREATES UNSAFE DRIVING ENVIRONMENT, KNOWN PROBLEM ON 2010-2012 E350/E550, YET MB REFUSES TO ACKNOWLEDGE THE PROBLEM. *TR

NHTSA ODI 10691305

Feb 23, 2015Transmission & drivetrainSpeed control

SUBMISSION FROM CONSTITUENT RE ACCELERATION ISSUE WITH 2011 E350 BLUE TECH MERCEDES BENZ. *SMD THE CONSUMER STATED THE VEHICLE DID NOT RESPOND TO ACCELERATOR INPUT. THE PROBLEM WAS INTERMITTENT. *JB

NHTSA ODI 10690370

Jan 20, 2015Equipment Adaptive/mobilityFuel system

ADBLUE HEATER/SENOR FOR THE EMISSION CONTROL ON THE 2011 MERCEDES-BENZ E350 BLUETEC FAIL AFTER 80,000 MILES THE PROBLEM WITH THE SYSTEM IS THAT IT STARTS A COUNT DOWN WHICH IS DISPLAYED ON THE DASH TO HOW MANY STARTS ARE LEFT BEFORE THE CAR COMPLETELY SHUTS DOWN AND WILL NOT START BECAUSE OF A HEATER/SENOR. SO HERE I AM HELD CAPTIVE BY THE NUMBER OF STARTS I HAVE LEFT TO GET THE CAR TO A DEALERSHIP TO CORRECT THE PROBLEM. MY PROBLEM WITH THIS IS A $50,000.00 PLUS CAR SHOULDN'T BE SHUTTING DOWN FOR A EMISSION CONTROL SYSTEM. *TR

NHTSA ODI 10676831

Jan 16, 2015TiresWheels

TL* THE CONTACT OWNS A 2011 MERCEDES BENZ E350. WHILE DRIVING AT APPROXIMATELY 65 MPH, THE REAR PASSENGER SIDE TIRE BLEW OUT. THE VEHICLE WAS TAKEN TO THE DEALER WHO DIAGNOSED THAT A CRACK FLANGE IN THE WHEEL CAUSED THE FAILURE. AS A RESULT, THE WHEEL WAS REPLACED. THE VEHICLE WAS TAKEN TO ANOTHER DEALER, WHO INSPECTED THE WHEELS AND DISCOVERED THAT THE FRONT PASSENGER SIDE AND THE REAR DRIVER SIDE WHEELS WERE ALSO CRACKED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 5 MPH, THE FRONT PASSENGER SIDE TIRE BLEW OUT. THE VEHICLE WAS TAKEN BACK TO THE DEALER WHO DIAGNOSED THAT THE REPLACEMENT WHEEL CRACKED, CAUSING THE TIRE TO BLOW OUT. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 45,000. UPDATED 2/25/15*CN THE CONSUMER STATED HE EXPERIENCED FOUR TIRE AND RIM FAILURES. UPDATED 03/02/15

NHTSA ODI 10673094

Oct 21, 2014EngineFuel system

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

NHTSA ODI 10648992

Oct 15, 2014Visibility & wipersAirbagsCrash

TL* THE CONTACT OWNS A 2011 MERCEDES BENZ E350A. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 45 MPH, THE CONTACT CRASHED INTO A DEER AND THE AIR BAGS FAILED TO DEPLOY. A POLICE REPORT WAS FILED. THE VEHICLE WAS TOWED TO A DEALER. THE TECHNICIAN DIAGNOSED THAT THE DRIVER'S SIDE REAR VIEW MIRROR THAT WAS DAMAGED DURING THE CRASH CAUSED THE AIR BAG WIRING TO MALFUNCTION. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 39,000.

NHTSA ODI 10644764

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Working with the data? Download all 295 complaints as CSV · fetched from NHTSA July 26, 2026

How to use these: a complaint is one owner’s report, filed voluntarily and published unverified. Patterns matter more than any single story. If several owners describe the same failure at similar mileage, put that system at the top of your pre-purchase inspection list. Back to the full 2011 Mercedes-benz E-class Cabrio verdict →