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What 38 owners told NHTSA about the 2014 Mercedes-benz Gl-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 (38)Crash / fire / injury (1)Engine (11)Electrical system (4)Steering (4)Brakes (3)Transmission & drivetrain (3)Visibility & wipers (3)Body & structure (2)Engine & cooling (2)Seats (2)Suspension (2)

2 of 38 complaints match · Seats · clear filters

Nov 10, 2017Seats

TO THE BEST OF MY KNOWLEDGE - CERTAIN HIGH END GL MODEL HAVE OPTIONAL EASY THIRD ROW ENTRY. THE SECOND ROW IN SUCH MODELS FOLDS WITH A TOUCH OF A BUTTON. HOWEVER WHEN FULLY DEPLOYED - THE SECOND ROW SEAT'S HEAD REST IN SUCH MODELS PREVENT PROPER INSTALLATION OF KID'S CARSEAT ' SUCH THAT THE UPPER PART OF THE CARSEAT IS PROJECTED FORWARD. I AM 6 FEET AND CAN EASILY PUT THE WHOLE OF MY FORARM BEHIND MY KID'S CARSEAT AFTER INSTALLATION. THE RESULT IS ' A VERY UNCOMFORTABLE FORWARD POSITIONING OF THE KID'S CARSEAT. MY KID HAS REPORTED NECK SPRAIN MULTIPLE TIMES. THE ISSUE DOES NOT RESOLVE WITH USING A BOOSTER ONLY (WITHOUT BACKREST) OR WITH CAR'S HEADREST NOT DEPLOYED ' AS IN ALL SITUATIONS THE CAR'S HEAD REST STILL PUSHES MY KID'S HEAD FORWARD. I BELIEVE THAT IT'S A POTENTIAL SAFETY ISSUE AS WELL. THIS ISSUE HAS BEEN WIDELY REPORTED ONLINE. I GUESS MERCEDES TOOK NOTE OF IT AND AS PER THE LOCAL DEALER - THEY HAVE FIXED IT IN THE NEWER MODELS (2016 ONWARDS). IN ORDER TO FIX MINE - MY FIRST PLAN WAS TO REMOVE THE SECOND ROW HEADREST (THE ONE ON WHICH I INSTALL MY KID'S CARSEAT). DEALER TOLD ME THAT IT'S NOT POSSIBLE - AND INSTEAD RECOMMENDED A RETROFIT. QUOTE WAS $1300. GIVEN THAT IT'S PRIMARILY A MANUFACTURING DEFECT I CALLED MERCEDES USA - THEY REPLIED PROMPTLY. BASICALLY ACKNOWLEDGED THAT THERE IS AN ISSUE AND OFFERED ME $350 IN SERVICE CREDIT, BUT EXPECTED ME TO SHELL OUT THE REMAINING $ 950 OUT OF MY POCKET. WHEN I TOLD THEM THAT IT'S UNFAIR TO DO SO ' AS IT'S PRIMARILY A MANUFACTURING DEFECT ' THE AGENT BASICALLY TOLD ME THAT I SHOULD INSTEAD BE HAPPY THAT THERE'S A REMEDY AVAILABLE AND THAT ALSO AT MY LOCAL MERCEDES DEALER. HE TRIED TO USE MY CURRENT MILEAGE (62K) AS A JUSTIFICATION FOR NOT PICKING UP THE COST - EVEN THOUGH THIS HAS NOTHING TO DO WITH MILEAGE AND MY VEHICLE HAS AN UNLIMITED MILEAGE WARRANTY UNTIL 08/2020.

NHTSA ODI 11045127

May 25, 2017Seats

THE REAR HEADRESTS IN THE MODELS THAT HAVE THE EZ FOLD SYSTEM IN THE 2014 GL550 WILL NOT COME OUT, NOR DO THE HEADRESTS TILT BACK TO A COMFORTABLE POSITION FOR CHILDREN. IN THE MERCEDES FORUMS, THERE ARE DOZENS OF COMMENTS ON THIS AND I HAVE ATTACHED PHOTOS FROM ONE OF THESE THAT MIMICS WHAT MY CHILDREN, 9 & 13 ARE EXPERIENCING - UNABLE TO SIT VERY COMFORTABLY IN THE BACK SEAT, AS THE HEADREST PROTRUDES TOO FAR OUT WHERE THEIR NECKS ARE TOO CRANKED FORWARD, OR HEAD IS NOT IN A GOOD POSITION. I AM SEEKING A FIX WHERE THE HEADREST CAN TILT BACK LIKE THE ONES IN THE VEHICLES WITH MANUAL FOLDING REAR SEATS. TAHNK YOU.

NHTSA ODI 10991657

Working with the data? Download all 38 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 2014 Mercedes-benz Gl-class verdict →