NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
83 reports80,000 miles · Sep 7, 2015
Power Train
WE ARE HAVING SOME SERIOUS ISSUES WITH OUR MERCEDES BENZ ML350, 2007. THE SAFETY HAZARD CONCERNS US DEEPLY. BASED UPON OUR RESEARCH, WE HAVE DISCOVERED THAT THIS IS A COMMON PROBLEM. OTHERS ARE FACING THE SAME ISSUES WITH THIS VEHICLE. THIS PROBLEM OCCURS WHEN YOU LEAST EXPECT IT. IT WILL BE DRIVING FINE AND THEN ALL OF A …
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WE ARE HAVING SOME SERIOUS ISSUES WITH OUR MERCEDES BENZ ML350, 2007. THE SAFETY HAZARD CONCERNS US DEEPLY. BASED UPON OUR RESEARCH, WE HAVE DISCOVERED THAT THIS IS A COMMON PROBLEM. OTHERS ARE FACING THE SAME ISSUES WITH THIS VEHICLE. THIS PROBLEM OCCURS WHEN YOU LEAST EXPECT IT. IT WILL BE DRIVING FINE AND THEN ALL OF A SUDDEN, IT WILL LOSE ALL POWER IN THE TRAFFIC WHERE YOU ARE TOTALLY HELPLESS AND UNABLE TO PULL OVER. THIS IS VERY DANGEROUS BECAUSE THE VEHICLE SLOWS DOWN UNEXPECTEDLY WHICH CAN CAUSE A MAJOR ACCIDENT. EXAMPLE: WHEN YOU ARE CROSSING A HIGHWAY; YOU THINK THE VEHICLE WILL DRIVE NORMAL. BUT THEN ALL OF A SUDDEN IT DRAGS. THEREFORE, YOU WILL HAVE TO CRAWL. EACH TIME WE HAVE TO RESTART THE VEHICLE. IT APPEARS THAT THE VEHICLE RESETS ITSELF WHEN THE ENGINE IS TURNED OFF. THEN THE VEHICLE PROCEEDS AS NORMAL. ANOTHER EXAMPLE: IT WON'T SHIFT FROM SECOND GEAR TO THIRD, AND YOU CAN ONLY CRAWL 10-40 MPH. IT REFUSES TO SHIFT ANY MORE. OTHER DRIVERS AROUND US ON THE ROAD BECOME EXTREMELY IMPATIENT AND START SCREAMING AND USING VIOLENT GESTURES. ANOTHER TIME, I WAS COMING OFF A HIGHWAY MERGING TO THE ACCESS ROAD. THE VEHICLE SLOWED DOWN. I PRESSED ON THE GAS, THE ENGINE REVVED UP BUT THE CAR SLOWED DOWN TO ABOUT 35MPH AND A 18 WHEELER BEHIND US ALMOST HIT US BY SWERVING TO AVOID A MAJOR ACCIDENT. I HAD TO CRAWL ON THE ACCESS ROAD WITH FAST MOVING TRAFFIC. THERE ARE OTHER REPORTS WITH THE 2007 MERCEDES BENZ ML350 POWER TRAIN (TRANSMISSION) TO HAVE THESE ISSUES. THE REPORTS I HAVE READ INDICATED THAT THE MERCEDES BENZ CORPORATION IS NOT WILLING TO OWN UP TO THE FACT THAT THIS VEHICLE IS VERY DANGEROUS AND CAN CAUSE SERIOUS IMPLICATIONS. I PLEAD FOR YOUR HELP TO PLEASE LOOK INTO THIS MATTER SO THAT OTHERS WITH THE SAME PROBLEM WITH THIS CAR CAN BE SPARED. WE ARE APPEALING FOR YOUR HELP.
NHTSA ODI #10762015
70,000 miles · Apr 25, 2015
Seats
DRIVING ON 295 ON NEW JERSEY PARKWAY AT 60 MPH WITH SEAT HEATER TURNED ON. SEAT HEATER CAUGHT ON FIRE AND BURNED A HOLE, THE SIZE OF A HALF DOLLAR IN LEATHER SEAT ON THE LEFT SIDE OF DRIVER SEAT. THE LEFT SIDE OF LOWER BACK. SMOKE CAME OUT OF THE SEAT AND DAMAGED AND BURNED A HOLE IN THE LEATHER SEAT AND BURNED A HOLE IN M…
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DRIVING ON 295 ON NEW JERSEY PARKWAY AT 60 MPH WITH SEAT HEATER TURNED ON. SEAT HEATER CAUGHT ON FIRE AND BURNED A HOLE, THE SIZE OF A HALF DOLLAR IN LEATHER SEAT ON THE LEFT SIDE OF DRIVER SEAT. THE LEFT SIDE OF LOWER BACK. SMOKE CAME OUT OF THE SEAT AND DAMAGED AND BURNED A HOLE IN THE LEATHER SEAT AND BURNED A HOLE IN MY COAT. CALLED THE DEALERSHIP SAME DAY SAID THERE WAS NO RECALLS. ALSO ENGINE LIGHTS REMAIN ON HAD IT FIXED ONCE STILL REMAINS ON AND BRAKES LIGHTS ALSO GOING OUT. *TR
NHTSA ODI #10712834
84,000 miles · Mar 11, 2015
Electrical SystemStructure
DRIVER'S SIDE SAM MODULE SHORTED DUE TO WATER ENTERING THE CARGO COMPARTMENT. ALSO, LIFTGATE INOPERABLE DUE TO WATER ENTERING THE CARGO COMPARTMENT AND DAMAGING THE MODULE. INSTRUMENT CLUSTER LIGHTS REMAIN ON AFTER EXITING THE VEHICLE AND WARNING LIGHTS FLASH EVERY 8 TO 10 SECONDS UNTIL BATTERY DRAINS. 2009 AND LATER ML350 RE…
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DRIVER'S SIDE SAM MODULE SHORTED DUE TO WATER ENTERING THE CARGO COMPARTMENT. ALSO, LIFTGATE INOPERABLE DUE TO WATER ENTERING THE CARGO COMPARTMENT AND DAMAGING THE MODULE. INSTRUMENT CLUSTER LIGHTS REMAIN ON AFTER EXITING THE VEHICLE AND WARNING LIGHTS FLASH EVERY 8 TO 10 SECONDS UNTIL BATTERY DRAINS. 2009 AND LATER ML350 RECALLED FOR WATER INTRUSION INTO THE CARGO COMPARTMENT VIA A DEFECTIVE TAIL LIGHT ASSEMBLY SEAL AND SUBSEQUENT FIRE HAZARD TO THE LIFTGATE MODULE. WATER FOUND IN OTHER CAVITIES OF THE 2007 ML350. AFRAID OF THE FIRE HAZARD FOR THE 2007 ML350 AS WELL. DEALER SAYS 2007 ML350 NOT AFFECTED BY RECALL NUMBER 2009030003. *TR
NHTSA ODI #10693542
128,000 miles · Jan 21, 2015
SeatsFire
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ ML350. THE CONTACT STATED THAT WHILE DRIVING 50 MPH WITH THE DRIVER'S SIDE SEAT HEATER ACTIVATED, BURNING FUMES EMITTED INTO THE VEHICLE. UPON FURTHER INSPECTION, THE CONTACT NOTICED A HOLE IN THE LOWER SIDE OF THE DRIVER'S SIDE SEAT. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFA…
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TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ ML350. THE CONTACT STATED THAT WHILE DRIVING 50 MPH WITH THE DRIVER'S SIDE SEAT HEATER ACTIVATED, BURNING FUMES EMITTED INTO THE VEHICLE. UPON FURTHER INSPECTION, THE CONTACT NOTICED A HOLE IN THE LOWER SIDE OF THE DRIVER'S SIDE SEAT. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 128,000.
NHTSA ODI #10677118
Mileage unknown · Dec 18, 2014
Air BagsSuspension
TOO ALL THERE HAS NOT BEEN AN ACCIDENT MY COMPLIANT IS I BOUGHT THE ABOVE MENTIONED VEHICLE FROM THE RICHMOND VA CARMAX AND HAS BEEN BACK SEVERAL TIMES AND EVEN SPOKE WITH THE STORE MANAGER [XXX] AND THE REGION MANAGER WHOM WAS VERY NASTY TO BE ABOUT THE PROBLEM WITH THIS VEHICLE AND TO HAVE ME KEEP COMING BACK OVER 5 TIMES IN …
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TOO ALL THERE HAS NOT BEEN AN ACCIDENT MY COMPLIANT IS I BOUGHT THE ABOVE MENTIONED VEHICLE FROM THE RICHMOND VA CARMAX AND HAS BEEN BACK SEVERAL TIMES AND EVEN SPOKE WITH THE STORE MANAGER [XXX] AND THE REGION MANAGER WHOM WAS VERY NASTY TO BE ABOUT THE PROBLEM WITH THIS VEHICLE AND TO HAVE ME KEEP COMING BACK OVER 5 TIMES IN JUST TWO MONTHS AND STILL HAVE NOT FIXED THE PROBLEM. I RECENTLY SAW THE SPECIAL THAT 60 MINUTES HAD ABOUT YOUR FRAUDULENT ACTIVITIES FROM YOUR. I NOW UNDERSTAND WHY I HAVE A VEHICLE THAT IS NOT PERFORMING FOR THE MONEY I SPENT. I CALLED ON SEVERAL OCCASION AND SPOKE WITH THE REGION MANAGER HIS NAME ESCAPES ME BUT I BELIEVE IT'S [XXX] OR SOMETHING PRETTY CLOSE. I CALLED IN ENOUGH TIME TO DO THE BUY BACK BUT HE INSIST THEY WOULD TAKE CARE OF IT AND THEN WHEN IT WAS NOT RESOLVED HE THEN MENTION IT WAS PAST THE BUY BACK TIME, YES HE PULLED A QUICK ONE ON ME AND I TOLD HIM IT WAS BOUGHT TO HIS ATTENTION BEFORE THE BUY BACK TIME BUT HE STATED IT WAS THE DATE WE WERE SPEAKING GOING FORWARD AND IF HE TOOK IT BACK I WOULD LOSE QUITE A BIT. I'M SO UNHAPPY BUT I TRULY SEE WHY PEOPLE HAVE PUT YOUR COMPANY ON BLAST. THE 60 MINUTE STORY IS EXACTLY WHAT I EXPERIENCED. THE ONLY PLEASANT EXPERIENCE WAS WITH [XXX] MY SALES PERSON AND HE KNEW YOU GUYS HAD GAVE ME A BAD DEAL AND HIS HANDS WERE TIED. I WAS ACTUALLY THERE WHEN HE TIRED TO HELP ME BUT HE LATER TOLD ME HIS JOB WAS ON THE LINE. I WILL BE CONTACTING THE BBB TO SEE WHAT MY OPTIONS ARE. I WILL ALSO PLAN TO HAVE THE CARFAX BECAUSE THE ONE THAT WAS PROVIDED I DO NOT BELIEVE IS ACCURATE.I BELIEVE THAT VEHICLE HAS BEEN INVOLVED IN SOME TYPE OF COLLISION. ANOTHER THING THAT 60 MINUTES POINTED OUT ABOUT YOUR COMPANY. I'M WAITING ON BETTER BUSINESS TO CONTACT ME.ONE THING FOR SURE IS THAT I WILL NEVER BUY FROM CARMAX AGAIN. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TR
NHTSA ODI #10667045
44,275 miles · Nov 14, 2014
SeatsFire
WIFE WAS IDLING IN CAR WITH SEAT HEATER TURNED ON. SEAT HEATER CAUGHT ON FIRE AND BURNED HOLE THE SIZE OF A HALF DOLLAR IN THE LOWER AREA OF THE SEAT IN THE AREA OF MY WIFE'S LOWER BACK. SMOKE CAME OUT OF THE SEAT AND MY WIFE'S COAT WAS DAMAGED. BROUGHT INTO DEALERSHIP SAME DAY AND ARE WAITING FOR THEIR EXPLANATION.
NHTSA ODI #10654922
81,586 miles · Nov 10, 2014
Engine And Engine CoolingUnknown Or Other
I PURCHASED MY 2007 MERCEDES BENZ ML350 ON 10/11/14 ON 10/24/14 I BEGAN HAVING PROBLEMS WITH WHAT SEEMED TO THE SHIFTING OF GEARS. WHEN TRYING TO SLOWLY EXCEL FROM EITHER A COMPLETE STOP OR A SLOW CRAWL IT SEEMS AS THOUGH THE CAR WOULD NOT MOVE, IT WAS HAVING A PROBLEM AUTOMATICALLY SHIFTING FROM 1ST TO 2ND GEAR, AND BACK DOWN F…
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
NHTSA ODI #10654402
110,000 miles · Nov 8, 2014
Steering
POWER STEERING BEGAN MAKING LOW PITCHED HUMMING NOISE, WHICH LED ME TO DISCOVER A POWER STEERING FLUID LEAK. UPON DOING RESEARCH ONLINE, AND TALKING TO MERCEDES TECHS, I'VE FOUND THIS TO BE A VERY COMMON PROBLEM WITH THESE VEHICLES. IT CAN AND HAS LED TO POWER STEERING / RACK FAILURE AND IS A MAJOR SAFETY HAZARD. *TR
NHTSA ODI #10653548
46,000 miles · May 26, 2014
Power Train
STARTED MY 2007 MERCEDES BENZ ML 350 WITH ONLY 46,000 MILES DRIVEN AND PULLED ONTO MAJOR STREET IN JACKSONVILLE, FL. CAR WOULD NOT SHIFT FROM FIRST GEAR - COULD NOT GET IT TO GO OVER 20 MPH. CARS WHIZZING BY ME. SURPRISED I DIDN'T GET HIT. TOOK THE CAR TO MERCEDES DEALER. FIRST PROBLEM ON ESTIMATE IS: "REPLACE TRANSMISSI…
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STARTED MY 2007 MERCEDES BENZ ML 350 WITH ONLY 46,000 MILES DRIVEN AND PULLED ONTO MAJOR STREET IN JACKSONVILLE, FL. CAR WOULD NOT SHIFT FROM FIRST GEAR - COULD NOT GET IT TO GO OVER 20 MPH. CARS WHIZZING BY ME. SURPRISED I DIDN'T GET HIT. TOOK THE CAR TO MERCEDES DEALER. FIRST PROBLEM ON ESTIMATE IS: "REPLACE TRANSMISSION ELECTRICAL PLATE (FAULTY TRANSMISSION ELECTRICAL PLATE)". MB ADMITS 722.9 TRANSMISSION IS FAULTY. HOWEVER, THEY WILL ONLY ACCEPT RESPONSIBILITY TO REPAIR VEHICLES IN WARRANTY. MY VEHICLE IS OUT OF WARRANTY BY # OF YEARS, NOT MILEAGE. A CAR SHOULD NOT NEED TRANSMISSION WORK AT 46,000 MILES. WENT ONLINE TO RESEARCH AND THIS IS A PROBLEM OF MANY CARS WITH 722.9 TRANSMISSION. MY COST TO FIX WILL BE $1100 FOR THE TRANSMISSION ELECTRICAL PLATE. IN ADDITION, RECEIVED A CALL AFTER 3 DAYS IN SHOP THAT THEY WILL ALSO NEED TO REPLACE THE TORQUE CONVERTER. THE DEALER IS COPING THE COST TO REPLACE THE TORQUE CONVERTER. CAR IS STILL IN THE SHOP. I AM REPORTING BECAUSE THIS IS A SAFETY ISSUE. IF THE GEARS WILL NOT CHANGE WHEN YOU PULL INTO TRAFFIC, HOW LONG WILL IT BE BEFORE SOMEONE IS SERIOUSLY INJURED. ANOTHER COMPLAINT LISTED ONLINE WAS THAT THE CAR JUMPS OUT OF GEAR ON EXPRESSWAY. I THINK THERE SHOULD BE A RECALL ON ALL CARS WITH THIS TRANSMISSION. THE DEALER IS WORKING WITH ME AND HAS PROVIDED A LOANER CAR. HOWEVER, I THINK MERCEDES BENZ SHOULD BE REPAIRING THIS PROBLEM ON ALL CARS THAT HAVE THE PROBLEM, WHETHER IN WARRANTY OR OUT, AT THEIR COST. *TR
NHTSA ODI #10594012
75,500 miles · Mar 17, 2014
Electrical SystemSeatsFire
THE DRIVER SEAT CAUGHT ON FIRE DUE TO A MALFUNCTIONING SEAT HEATER. A WHOLE THE SIZE OF A DIME BURNED THROUGH THE SEAT AND THE FLAME BURNED A HOLE INTO THE COAT OF THE VEHICLE'S DRIVER. *TR
NHTSA ODI #10572777