Home · 2015 Mercedes-benz Glk-class · Complaints

What 133 owners told NHTSA about the 2015 Mercedes-benz Glk-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 (133)Crash / fire / injury (5)Airbags (91)Electrical system (10)Fuel system (8)Speed control (7)Steering (7)Transmission & drivetrain (7)Engine (6)Brakes (5)Electronic Stability Control (esc) (4)Body & structure (2)

5 of 133 complaints match · Brakes · clear filters

Feb 20, 2020Electrical systemSpeed controlBrakes

SAFETY FEATURES BECOME LIMITED OR INOPERABLE DURING OPERATION OF VEHICLE. TAKEN TO DEALERSHIP, CONTROL MODULE REPLACED. DOES NOT FIX ISSUE. ALL PRE-SAFE FUNCTIONS BECOME INOPERARABLE UNDER THIS FAILURE. MULTIPLE ONLINE FORUMS REPORT SAME ISSUE. MERCEDES SEEMS AWARE OF PROBLEM, BUT NOT ACKNOWLEDING THEIR RESPONSIBILITY TO RECALL OR FIND ROOT OF ISSUE. WHEN STARTING VEHICLE, OR OFTEN WHEN DRIVING DOWN THE ROAD, CRUISE CONTROL, ADAPTIVE STEERING, LANE ASSIST, BLIND SPOT DETECTORS, PRE-SAFE BRAKING FEATURES WILL ALL BECOME INOPERABLE AND THROW MULTIPLE FAILURE READINGS ON DASHBOARD.

NHTSA ODI 11310441

Jun 3, 2019Brakes

FAULTY PARKING BRAKE ASSEMBLY. WHEN PULLING THE PARKING BRAKE RELEASE THE FOOT PEDAL DOES NOT DISENGAGE. DRIVER MUST PULL THE PARKING BRAKE RELEASE AND USE THEIR FOOT TO MANUALLY PRY THE PARKING BRAKE PEDAL BACK INTO THE 'RELEASED' POSITION. VEHICLE HAS HAD ISSUE SINCE 39,000 MILES.

NHTSA ODI 11217593

Jul 2, 2017SteeringSpeed controlBrakesCrashFire1 injury

ON JUNE 16,2017, WHILE I WAS DRIVING ON FREEWAY, I TRIED TO SLOWED DOWN BUT IT TURNED OUT TO ACCELERATE SUDDENLY AT AROUND 85MPH, THE STEERING SYSTEM WAS MESSED UP AND I LOST CONTROL OF MY CAR , THE MORE I TRY TO BRAKE THE FASTER THE CAR CRASHED , SO IT CRASHED TO THE RIGHT SIDE AND ROLLED OVER DOWN TO THE DITCH , I CALLED 911 AND UNFORTUNATELY THERE WAS NO SIGNAL, I COULD NOT OPEN THE DOOR NOR WINDOW. THE SMOKE CAME OUT FROM INSIDE AND THE CAR CAUGHT ON FIRE , I COULD HAVE BEEN BURNT TO DEATH ALIVE WITHOUT PEOPLE PASSING BY , THEY USED A BIG ROCK TO BREAK THE WINDOW AND PULLED ME OUT OF THE CAR, TWO MINUTES LATER , THE CAR EXPLODED AND BURNT TO GROUND. THIS IS A HORRIBLE EXPERIENCE , PEOPLE LIKE ME SPENT SO MUCH MONEY ON PURCHASING SUCH AN EXPENSIVE CAR WITH EXPECTATION TO BE SAFER IN DRIVING , BUT WHEN IT COMES TO CAR ACCIDENT , THERE ARE STILL SO MANY FLAWS WHICH COULD HAVE LED TO WRONGFUL DEATH , THIS MAKES ME FEEL FRUSTRATED AND I CALLED MB LONG BEACH AND BEVERLY HILLS , THEY JUST SHOWED INDIFFERENT AND IT'S NONE OF THEIR BUSINESS . I'M NOW VERY DISAPPOINTED AND I HOPE THERE WON'T BE ANY VICTIMS LIKE THIS . I WAS THE EXCEPTION AND I HOPE PEOPLE DRIVING MB GLK350 COULD BE LUCKY ENOUGH . MB OWES ME AN EXPLANATION AND INDEPENDENT INVESTIGATION SHOULD BE CARRIED OUT , MAYBE A RECALL IF NECESSARY FOR THE SAFETY OF CONSUMERS .

NHTSA ODI 11002718

Jul 1, 2017Speed controlElectronic Stability Control (esc)BrakesCrashFire1 injury

MY MB GLK 35 CRASHED AT A HIGH SPEED AROUND 80 MPH,IT BURNT TO GROUND . I WOULD HAVE BEEN BURNT ALIVE WITHOUT PEOPLE USING A BIG ROCK TO BREAK THE WINDOW AND PULLING ME OUT . DUE TO THE STEERING AND ENGINE MALFUNCTION , MY CAR CRASHED AND I COULDN'T OPEN THE DOOR NOR WINDOWS . THIS IS HORRIBLE EXPERIENCE , MERCEDES BENZ NEEDS TO INVESTIGATE THIS ACCIDENT AND I DON'T WANT MORE VICTIMS LIKE THIS .

NHTSA ODI 11002664

Sep 30, 2015Transmission & drivetrainBrakes

TL* THE CONTACT OWNS A 2015 MERCEDES BENZ GLK250. WHILE ATTEMPTING TO PARK, THE BRAKE PEDAL WAS DEPRESSED AND THE BRAKES FAILED TO RESPOND. THE CONTACT ALSO STATED THAT THE VEHICLE INDEPENDENTLY SHIFTED FROM DRIVE INTO NEUTRAL. THE FAILURE RECURRED TWICE. THE VEHICLE WAS TAKEN TO A DEALER WHERE THE DIAGNOSIS WAS UNKNOWN. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 30.

NHTSA ODI 10778814

Working with the data? Download all 133 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 Glk-class verdict →