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What 66 owners told NHTSA about the 2015 Mercedes-benz Ml-class

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 (66)Crash / fire / injury (15)Engine (16)Fuel system (10)Transmission & drivetrain (8)Brakes (7)Steering (6)Body & structure (5)Electrical system (5)Fuel System, Diesel (5)Airbags (4)Suspension (4)

8 of 66 complaints match · Transmission & drivetrain · clear filters

Sep 8, 2023Transmission & drivetrain

The contact owns a 2015 Mercedes-Benz ML350. The contact stated while reversing, there was an abnormal sound coming from the vehicle. No warning light was illuminated. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure and determined that the VIN was not included in a recall. The failure mileage was unknown.

NHTSA ODI 11543484

Apr 13, 2021Transmission & drivetrainCrash

WHILE AT A STOP LIGHT VEHICLE SUDDENLY SURGED FORWARD PLOWING INTO VEHICLE IN FRONT CAUSING FOUR CAR COLLISION. VEHICLE ON TWO PRIOR OCCASIONS, HAD SURGED WITHOUT INCIDENT. THIS OCCURRED ON A CITY STREET IN VOHESS, NJ. THE CAUSE IS UNKNOWN.

NHTSA ODI 11407897

Aug 15, 2019Transmission & drivetrain

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ ML350. WHILE DRIVING ON A LEVEL ROAD SURFACE AND MAKING A TURN, THE VEHICLE MADE AN ABNORMAL NOISE. THE CONTACT TOOK THE VEHICLE TO AN INDEPENDENT MECHANIC WHO STATED THAT THE DRIVESHAFT FAILED. THE MECHANIC ADVISED THE CONTACT TO TAKE THE VEHICLE TO A DEALER. THE MANUFACTURER WAS CONTACTED AND STATED THAT THE VEHICLE WAS NOT INCLUDED IN NHTSA CAMPAIGN NUMBER: 16V900000 (POWER TRAIN). THE DEALER WAS NOT CONTACTED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 74,000.

NHTSA ODI 11244284

Dec 9, 2016Transmission & drivetrainSpeed controlBrakesCrash

TL* THE CONTACT OWNS A 2015 MERCEDES-BENZ ML350. THE CONTACT STATED THAT WHILE THE VEHICLE WAS IN REVERSE AND THE BRAKE PEDAL WAS DEPRESSED, THE VEHICLE ACCELERATED INDEPENDENTLY. THE VEHICLE CRASHED INTO A WALL AND THE REAR WINDOW BROKE. THE CONTACT STATED THAT THE VEHICLE ACCELERATED UP TO 19 MPH IN REVERSE. THE CONTACT STATED THAT THE VEHICLE THEN SWITCHED GEARS INTO DRIVE INDEPENDENTLY, LUNGED FORWARD, AND CRASHED INTO THE GARAGE. THE CONTACT STATED THAT THERE WAS EXTENSIVE DAMAGE TO THE FRONT AND REAR OF THE VEHICLE. THERE WERE NO INJURIES AND A POLICE REPORT WAS NOT FILED. THE CONTACT WAS NOT OFFERED AN EXPLANATION FOR THE INDEPENDENT ACCELERATION. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 19,300. UPDATED 01/31/17*LJ THE CONSUMER STATED THERE WAS DAMAGED TO THE RIGHT SIDE OF THE VEHICLE AS WELL. UPDATED 03/06/17.*JB

NHTSA ODI 10934032

Feb 19, 2016Transmission & drivetrainBrakesEngine1 injury

WHEN THE VEHICLE'S PARKING MECHANISM IS ENGAGED, THE VEHICLE ROLLS SEVERAL FEET BEFORE COMING TO A COMPLETE STOP; THEREBY ENDANGERING ANYONE IN, NEAR, OR AROUND THE VEHICLE AT THAT TIME FROM GETTING RUN OVER OR, SERIOUSLY INJURED BY THE MOVING VEHICLE.

NHTSA ODI 10837160

Apr 29, 2015Transmission & drivetrain

THIS NEW MERCEDES-BENZ ML400 HAS A MANUAL TRANSMISSION FEATURE THAT WITHOUT REASON REVERTS BACK TO AUTOMATIC WITHIN ABOUT 10 SECONDS WITHOUT ANY REASON. THIS PREVENTS THE DRIVER FROM BEING ABLE TO CONTROL TRACTION IN SLIPPERY OR OTHER DIFFICULT CONDITIONS, WHICH CLEARLY WAS OUR EXPERIENCE. THIS FEATURE IS MISREPRESENTED IN THE OWNERS MANUAL WHICH STATES AS HAVING A MANUAL TRANSMISSON CONTROL CAPABILITY AND WAS ALSO SOLD AS SUCH BY THE DEALERSHIP.

NHTSA ODI 10713809

Jan 20, 2015Transmission & drivetrainCrash

TL* THE CONTACT OWNS A 2015 MERCEDES BENZ ML350. THE CONTACT STATED THAT THE GEARS WERE SLIPPING INTERMITTENTLY. THE VEHICLE WAS TAKEN TO A DEALER, WHO DIAGNOSED THAT THE SOFTWARE COMMAND SYSTEM NEEDED TO BE UPDATED. THE VEHICLE WAS REPAIRED BUT WITHIN FIVE DAYS, THE FAILURE RECURRED. THE CONTACT STATED THAT WHILE THE VEHICLE WAS IN REVERSE, THE GEAR SLIPPED INTO DRIVE AND CRASHED INTO A FIRE HYDRANT. THE CONTACT DID NOT DISCLOSE IF A POLICE REPORT WAS FILED OR NOT. THE CONTACT DID NOT SUSTAIN ANY INJURIES. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 3,600. UPDATED 04/13/15*LJ UPDATED 11/5/2015*JS

NHTSA ODI 10676584

Jan 19, 2015SteeringTransmission & drivetrainBody & structureCrash

ROLLAWAY INCIDENT DUE TO AUTOMATIC GEAR SELECTOR MOUNTED ON STEERING COLUMN. *TR

NHTSA ODI 10676372

Working with the data? Download all 66 complaints as CSV · fetched from NHTSA July 28, 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 2015 Mercedes-benz Ml-class verdict →