NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
17 reportsClear category filterMileage unknown · Jun 9, 2016
Electrical SystemEngine And Engine Cooling
RECENTLY I WAS DRIVING AND MY CHECK ENGINE CAME ON. I TOOK IT TO THE MERCEDES-BENZ DEALER TO HAVE IT CHECKED AND THE DIAGNOSTIC REPORTED THE BALANCE SHAFT AND INTAKE REPAIR WAS NEEDED. THE ISSUE IS THAT THERE WAS A LAWSUIT AGAINST MBUSA FOR FAULTY BALANCE SHAFTS. AT NO POINT IN TIME WAS I INFORMED OF THE CLAIM ON MY VEHICLE. I…
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RECENTLY I WAS DRIVING AND MY CHECK ENGINE CAME ON. I TOOK IT TO THE MERCEDES-BENZ DEALER TO HAVE IT CHECKED AND THE DIAGNOSTIC REPORTED THE BALANCE SHAFT AND INTAKE REPAIR WAS NEEDED. THE ISSUE IS THAT THERE WAS A LAWSUIT AGAINST MBUSA FOR FAULTY BALANCE SHAFTS. AT NO POINT IN TIME WAS I INFORMED OF THE CLAIM ON MY VEHICLE. I NEED ASSISTANCE IN HAVING MY VEHICLE REPAIRED BEFORE THE TIME EXPIRES. MB USA HAS DEFECTIVE PARTS AND THEY ARE NOT ACKNOWLEDGING THE REPAIR.
NHTSA ODI #10873545
Mileage unknown · Jun 8, 2016
Engine And Engine Cooling
LETTER FROM SENATOR NELSON RE CONSTITUENT RE 2006 ML MERCEDES BENZ SUV ML 350 RECALL ISSUES. *SMD THE CONSUMER STATED THERE WAS A CLASS ACTION LAWSUIT FILED AGAINST MERCEDES BENZ, DUE TO AN INFERIOR BALANCE SHAFT IN THE ENGINE. A NUMBER OF VEHICLES INCLUDING HIS WERE DEFECTIVE. THE REPAIR FOR THE VEHICLE ENDS ON JUNE 16, 2016.…
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LETTER FROM SENATOR NELSON RE CONSTITUENT RE 2006 ML MERCEDES BENZ SUV ML 350 RECALL ISSUES. *SMD THE CONSUMER STATED THERE WAS A CLASS ACTION LAWSUIT FILED AGAINST MERCEDES BENZ, DUE TO AN INFERIOR BALANCE SHAFT IN THE ENGINE. A NUMBER OF VEHICLES INCLUDING HIS WERE DEFECTIVE. THE REPAIR FOR THE VEHICLE ENDS ON JUNE 16, 2016. HOWEVER, THE CONSUMER WAS INFORMED HE WAS NOT ELIGIBLE, BECAUSE HIS VEHICLE EXCEEDED 125,000 MILES. *JB
NHTSA ODI #10873071
86,770 miles · Feb 4, 2012
Engine And Engine Cooling
OWNER OF 2006 ML350 CHECK ENGINE LIGHT CAME ON TOOK IN FOR DIAGNOSIS WITH CAM SHAFT FAILURE, MB DOES NOT OFFER ANY HELP AND KNEW OF THIS ISSUE. CLASS ACTION LAWSUIT IN NJ ALREADY STARTED, HOPING ONE WILL GET STARTED IN SC. COST TO REPAIR IS $6,000 TO THE CUSTOMER. THIS IS USURY, AND DECEPTION BY THE WONDERFUL AUTOMAKERS OF TH…
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OWNER OF 2006 ML350 CHECK ENGINE LIGHT CAME ON TOOK IN FOR DIAGNOSIS WITH CAM SHAFT FAILURE, MB DOES NOT OFFER ANY HELP AND KNEW OF THIS ISSUE. CLASS ACTION LAWSUIT IN NJ ALREADY STARTED, HOPING ONE WILL GET STARTED IN SC. COST TO REPAIR IS $6,000 TO THE CUSTOMER. THIS IS USURY, AND DECEPTION BY THE WONDERFUL AUTOMAKERS OF THIS GREAT FOREIGN CAR MAKER WITH AN OFFICE IN THE USA. WHEN YOU CALL MB USA THEY ADVISE YOU TO SPEAK WITH THE SERVICE MANAGER THAT OFFERS NO HELP. *KB
NHTSA ODI #10446687
Mileage unknown · Oct 10, 2011
Engine And Engine CoolingPower Train
TRANSMISSION CODES DO NOT SWITCH GEARS HAPPENS ALOT HOW I'M DRIVING HAVE TO GET CODES RESET EVERY 2 TO 3 DAYS! *KB
NHTSA ODI #10429380
45,000 miles · Sep 22, 2011
Engine And Engine CoolingPower Train
AROUND 45,000 MILES THE CHECK ENGINE LIGHT CAME ON. I TOOK THE VEHICLE TO A MERCEDES BENZ DEALER SERVICE DEPARTMENT AND WAS NOTIFIED THAT THE BALANCE SHAFT NEEDS TO BE REPLACED. IN ORDER TO REPLACE THE BALANCE SHAFT, THE ENGINE NEEDS TO BE TAKEN OUT OF THE VEHICLE AND TAKEN APART. ESTIMATED COST $6,000. THE SERVICE DEPT. TOLD ME…
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AROUND 45,000 MILES THE CHECK ENGINE LIGHT CAME ON. I TOOK THE VEHICLE TO A MERCEDES BENZ DEALER SERVICE DEPARTMENT AND WAS NOTIFIED THAT THE BALANCE SHAFT NEEDS TO BE REPLACED. IN ORDER TO REPLACE THE BALANCE SHAFT, THE ENGINE NEEDS TO BE TAKEN OUT OF THE VEHICLE AND TAKEN APART. ESTIMATED COST $6,000. THE SERVICE DEPT. TOLD ME THAT IT WAS DUE TO A PART THAT WAS NOT HARDENED PROPERLY DURING MANUFACTURING. THERE IS A TECHNICAL SERVICE BULLETIN (S-B-03.30/08I) THAT WAS ORIGINALLY ISSUED IN 2007 WHICH WAS FOUND IN INTERNET SEARCHING, HOWEVER IT SEEMS LIKE MERCEDES BENZ KNOWS THAT THE CHECK ENGINE LIGHT (ON THE MAJORITY OF THESE VEHICLES) WILL NOT COME ON UNTIL WHEN THE WARRANTY HAS EXPIRED. SINCE THIS FIX IS A HUGE EXPENSE, THEY ARE NOT GOING TO ISSUE A RECALL EVEN THOUGH IT IS CLEARLY A SAFETY CONCERN. IF I WOULD'VE HAVE CONTINUED TO DRIVE THE VEHICLE IN THIS CONDITION, EVENTUALLY THE BALANCE SHAFT WOULD HAVE CONTINUED TO BREAK ITS TEETH RESULTING IN ENGINE FAILURE. CONTINUING TO DRIVE THE VEHICLE IN THE CONDITION IS NOT SAFE, IT IS A MATTER OF TIME BEFORE THE VEHICLE STOPS RUNNING AND THE ENGINE WOULD NEED TO BE REPLACED. THE MERCEDES BENZ USA REPLACED OUR BALANCE SHAFT OR PAY FOR IT PEOPLE WHO ALREADY FIXED. *TR
NHTSA ODI #10426711
47,800 miles · Sep 1, 2011
Engine And Engine Cooling
BALANCE SHAFT PROBLEM ON THE 2006 MERCEDES BENZ ML350 - I LIVE IN SOUTH FL AND I HAVE A 2006 MERCEDES ML350 WITH LESS THAN 50,000 MILES AND JUST LAST WEEK GOT A CHECK ENGINE LIGHT. TOOK IT TO THE DEALERSHIP IN POMPANO BEACH AND THEY TOLD ME THAT THE BALANCE SHAFT HAS TO BE REPLACED AND IT WILL COST $6600. THIS IS A KNOWN PROBLEM…
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BALANCE SHAFT PROBLEM ON THE 2006 MERCEDES BENZ ML350 - I LIVE IN SOUTH FL AND I HAVE A 2006 MERCEDES ML350 WITH LESS THAN 50,000 MILES AND JUST LAST WEEK GOT A CHECK ENGINE LIGHT. TOOK IT TO THE DEALERSHIP IN POMPANO BEACH AND THEY TOLD ME THAT THE BALANCE SHAFT HAS TO BE REPLACED AND IT WILL COST $6600. THIS IS A KNOWN PROBLEM AND THE MANUFACTURER MAKES NO EFFORT TO RECALL THE VEHICLES AND REPLACE THE PARTS FOR FREE. I CANNOT AFFORD TO PAY FOR THIS FACTORY DEFECT, MERCEDES BENZ SHOULD PAY FOR IT. *TR
NHTSA ODI #10422927
70,000 miles · Jul 28, 2011
Engine And Engine Cooling
VEHICLE DOES NOT ACCELERATE. *TR
NHTSA ODI #10415460
40,000 miles · Jul 25, 2011
Engine And Engine Cooling
I OWN A 2006 ML MERCEDES-BENZ WITH 47K MILES. THE ENGINE LIGHT CAME ON IN THE CAR, I HAD IT CHECKED BY AN INDEPENDENT MERCEDES TECHNICIAN WHO INFORMED ME THAT THE BALANCE SHAFT MUST BE REPLACED IN THE CAR. HE GAVE ME A "STAR BULLETIN" WHICH IS AN INTERNAL MEMO PRODUCED BY MERCEDES SHOWING THE HAVE KNOWN ABOUT THIS DEFECT SINCE A…
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I OWN A 2006 ML MERCEDES-BENZ WITH 47K MILES. THE ENGINE LIGHT CAME ON IN THE CAR, I HAD IT CHECKED BY AN INDEPENDENT MERCEDES TECHNICIAN WHO INFORMED ME THAT THE BALANCE SHAFT MUST BE REPLACED IN THE CAR. HE GAVE ME A "STAR BULLETIN" WHICH IS AN INTERNAL MEMO PRODUCED BY MERCEDES SHOWING THE HAVE KNOWN ABOUT THIS DEFECT SINCE AUGUST 2007 AND HAVE DONE NOTHING ABOUT NOTIFYING OWNERS OF THE CARS WITH ENGINES EFFECTED. IT IS I HAVE BEEN TOLD A COMMON PLACE ISSUE AND IN FACT A CLASS ACTION LAWSUIT HAS BEEN FILED IN NEW JERSEY AGAINST MERCEDES OVER THIS ISSUE. THE PROBLEM HAS TO BE REPAIRED OR THE ENGINE CAN BE DAMAGED BEYOND REPAIR, THE COST I HAVE BEEN QUOTED FOR THE REPAIR IS $6000. IT WAS MADE VERY CLEAR TO ME BY THE TECHNICIAN THAT A CAR WITH 47K MILES SHOULD NOT HAVE SUCH AN ISSUE AND THAT IT IS A DESIGN FLAW THAT MERCEDES THUS FAR HAS NOT STEPPED UP TO REMEDY WITH CAR OWNERS. *TR
NHTSA ODI #10415091
95,000 miles · Jul 19, 2011
Engine And Engine Cooling
I AM THE OWNER OF A MERCEDES 2006 ML350. I HAVE HAD MY CAM SENSOR AND CRANK SHAFT SENSOR REPAIRED 3 TIMES SINCE I HAVE OWNED THE VEHICLE. I INITIALLY HAD MY CAR SERVICED AT PARK PLACE IN DALLAS ON LEMMON AVENUE. MY CHECK ENGINE LIGHT IS ON AGAIN AFTER HAVING THIS SAME ISSUE REPAIRED SEVERAL TIMES. I CAN NO LONGER AFFORD TO KEEP …
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I AM THE OWNER OF A MERCEDES 2006 ML350. I HAVE HAD MY CAM SENSOR AND CRANK SHAFT SENSOR REPAIRED 3 TIMES SINCE I HAVE OWNED THE VEHICLE. I INITIALLY HAD MY CAR SERVICED AT PARK PLACE IN DALLAS ON LEMMON AVENUE. MY CHECK ENGINE LIGHT IS ON AGAIN AFTER HAVING THIS SAME ISSUE REPAIRED SEVERAL TIMES. I CAN NO LONGER AFFORD TO KEEP REPAIRING FOR A PROBLEM THAT IS GOING TO CONTINUE TO CAUSE PROBLEMS. AFTER HAVING THESE ITEMS REPAIRED I TOOK MY VEHICLE TO GET AN INSPECTION AND I FAILED THE INSPECTION. SO I TOOK IT TO A MECHANIC AND HE TOLD ME THAT MY BALANCE SHAFT GEAR NEEDS TO BE REPLACED WHICH IS THE REASON FOR MY SENSORS TO CONTINUALLY WEAR OUT. THIS REPAIR COST $6000.00 AND I CANNOT AFFORD IT. MY CHECK ENGINE LIGHT HAS BEEN ON FOR MONTHS AND I HAVE AN EXPIRED INSPECTION STICKER BECAUSE I CANNOT AFFORD THE COST OF THIS REPAIR. *KB
NHTSA ODI #10413501
56,000 miles · Jul 11, 2011
Engine And Engine Cooling
TL* THE CONTACT OWNS A 2006 MERCEDES BENZ ML350. WHILE DRIVING APPROXIMATELY 60 MPH, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED ON THE INSTRUMENT PANEL. THE WARNING LIGHT REMAINED ILLUMINATED UNTIL THE ENGINE WAS TURNED OFF. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE A DIAGNOSTIC TEST WAS PERFORMED THAT DETECTED A T…
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TL* THE CONTACT OWNS A 2006 MERCEDES BENZ ML350. WHILE DRIVING APPROXIMATELY 60 MPH, THE CHECK ENGINE WARNING INDICATOR ILLUMINATED ON THE INSTRUMENT PANEL. THE WARNING LIGHT REMAINED ILLUMINATED UNTIL THE ENGINE WAS TURNED OFF. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER WHERE A DIAGNOSTIC TEST WAS PERFORMED THAT DETECTED A TROUBLE CODE. THE TECHNICIAN STATED THE ENGINE SPROCKET WAS FAULTY. THE CONTACT WAS WAITING FOR A RESPONSE FOR THE REPAIR COVERAGE UNDER THE SERVICE WARRANTY. THE MANUFACTURER WAS NOT MADE AWARE OF THE DEFECT. THE APPROXIMATE FAILURE MILEAGE WAS 56,000.
NHTSA ODI #10411737