NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
16 reportsClear category filter51,000 miles · Mar 25, 2012
Engine And Engine Cooling
MY ENGINE WARNING LIGHT CAME ON. I WAS TOLD THAT THE STRUT HAD GONE BAD AND THE CAM IN THE ENGINE WENT BAD. I WAS TOLD BY THE DEALERSHIP THAT IS NORMAL IN THE 06 R350 AND THEY ARE NOT SURE WHY IT HASN'T BEEN A RECALL. IM UPSET BECAUSE IM VIEWING YOUR WEBSITE AND OTHER SITES THAT ARE DESIGN FOR OTHER OWNERS WITH THE SAME VEHICLES…
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MY ENGINE WARNING LIGHT CAME ON. I WAS TOLD THAT THE STRUT HAD GONE BAD AND THE CAM IN THE ENGINE WENT BAD. I WAS TOLD BY THE DEALERSHIP THAT IS NORMAL IN THE 06 R350 AND THEY ARE NOT SURE WHY IT HASN'T BEEN A RECALL. IM UPSET BECAUSE IM VIEWING YOUR WEBSITE AND OTHER SITES THAT ARE DESIGN FOR OTHER OWNERS WITH THE SAME VEHICLES AND THEY ARE SHOWING THE SAME PROBLEMS.. WHAT WILL IT TAKE TO GET A RECALL ON THIS BEFORE SOMEONE GETS HURT. *TR
NHTSA ODI #10452935
92,261 miles · Mar 6, 2012
Engine And Engine CoolingPower Train
CHECK ENGINE LIGHT CAME ON, TOOK THE CAR TO MY MECHANIC THAT WORKS ON FOREIGN CARS, HE INFORMED ME THAT MY DRIVE CAM SHAFT IS "RETARDED" BASICALLY STATING THAT MY SPROCKETS THAT HOLD THE TIMING BELT ARE WORN DOWN, I AM ALSO LOOSING COMPRESSION. I TOOK IT TO THE MERCEDES DEALERSHIP AND THEY TOLD ME THEY WILL GOODWILL THE REPAIR I…
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CHECK ENGINE LIGHT CAME ON, TOOK THE CAR TO MY MECHANIC THAT WORKS ON FOREIGN CARS, HE INFORMED ME THAT MY DRIVE CAM SHAFT IS "RETARDED" BASICALLY STATING THAT MY SPROCKETS THAT HOLD THE TIMING BELT ARE WORN DOWN, I AM ALSO LOOSING COMPRESSION. I TOOK IT TO THE MERCEDES DEALERSHIP AND THEY TOLD ME THEY WILL GOODWILL THE REPAIR IF THAT IS REALLY WHAT IS WRONG WITH IT. THEY HOWEVER PROCEEDED TO TELL ME THAT YOUR CAR HAS ALMOST 100,000 MILES ON IT, SO IT MAY JUST BE THE TIMING BELT IS WORN DOWN.(THEY WILL TRY ANYTHING TO GET OUT OF THE REPAIR). THEY TOLD ME THAT THEY NEED TO CHECK THE RECORDS TO SEE WHEN THE CAR WAS SERVICED AND ALSO THAT SINCE I DID NOT PURCHASE THE CAR FROM THEM THEY DO NOT HAVE TO DO THE WORK. *TR
NHTSA ODI #10450538
Mileage unknown · Jan 24, 2012
Electrical SystemEngine And Engine Cooling
2006 MERCEDES BENZ R350 STALLED IN THE MIDDLE OF A RESIDENTIAL INTERSECTION SHORTLY AFTER THE CAR WAS PURCHASED. WITHIN A SHORT PERIOD OF TIME AFTER GETTING THE CAR, WE ALSO FELT A STRONG JERKING THEN SHIFTING GEARS, BUT IT WAS DOING IT ON ITS OWN. WE TOOK IT IN AND WAS TOLD IT'S JUST LOUD. THEN WE WERE TOLD THERE WAS A RECAL…
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2006 MERCEDES BENZ R350 STALLED IN THE MIDDLE OF A RESIDENTIAL INTERSECTION SHORTLY AFTER THE CAR WAS PURCHASED. WITHIN A SHORT PERIOD OF TIME AFTER GETTING THE CAR, WE ALSO FELT A STRONG JERKING THEN SHIFTING GEARS, BUT IT WAS DOING IT ON ITS OWN. WE TOOK IT IN AND WAS TOLD IT'S JUST LOUD. THEN WE WERE TOLD THERE WAS A RECALL. THEY WERE SUPPOSED TO FIX IT BUT IT NEVER STOPPED. THE CHECK ENGINE LIGHT CONTINUED TO COME ON. OTHER ISSUES RELATED TO THE ENGINE HAD TO BE FIXED RATHER QUICKLY. THE CAR WAS PURCHASED IN THE END OF 2005, AND HAS 88,000 MILES. OVER A YEAR AGO, THE CAR BEGAN IDLING/SHAKING REALLY BAD. I CALLED MB ROADSIDE AND WAS TOLD THAT IT WAS PROBABLY BECAUSE THE GAS CAP WASN'T PLACED BACK ON THE CAR CORRECTLY AND GAS WAS LEAKING. I HAD THE CAR CHECKED AND THERE WAS NO GAS LEAKING. THE CAR WAS TAKEN TO THE DEALERSHIP WHERE I WAS TOLD THE INTAKE MANIFOLD WAS BROKEN AND NEEDED TO BE REPLACED BEFORE ANYTHING ELSE COULD BE DIAGNOSED. THE CAR IS STILL IDLING BAD AND CHECK ENGINE LIGHT IS ON. IT IS NOW BACK AT THE DEALERSHIP IT WAS PURCHASED FROM FOR A DIAGNOSIS, WHICH I SHOULD RECEIVE TOMORROW. *TR
NHTSA ODI #10444995
Mileage unknown · Oct 7, 2011
Engine And Engine Cooling
MY 2006 R350 HAS A BALANCE SHAFT ISSUE (GOT THE CODES P0016 AND P0017) ON THE SCANNER. IT SEEMS LIKE A MANUFACTURING DEFECT. THERE ARE ONLY 41K MILES ON THE CAR. *TR
NHTSA ODI #10429152
Mileage unknown · Sep 26, 2011
Engine And Engine Cooling
BALANCE SHAFT PROBLEM WITH MB R350, 2006 ENGINE W272 65000 MILES DEALER DOESN'T WANT TO TAKE THE CAR IN FOR AN EXCHANGE ARGUING THIS CAR HAS POTENTIAL PROBLEM PROVEN WITH THE AMOUNT OF REPAIR DONE TO THIS KIND OF ENGINE VERY EXPENSIVE TO REPAIR ( 6 TO 7K) MERCEDES SHOULD ASSUME THE COST OF REPAIR AND ISSUE A RECALL FOR …
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BALANCE SHAFT PROBLEM WITH MB R350, 2006 ENGINE W272 65000 MILES DEALER DOESN'T WANT TO TAKE THE CAR IN FOR AN EXCHANGE ARGUING THIS CAR HAS POTENTIAL PROBLEM PROVEN WITH THE AMOUNT OF REPAIR DONE TO THIS KIND OF ENGINE VERY EXPENSIVE TO REPAIR ( 6 TO 7K) MERCEDES SHOULD ASSUME THE COST OF REPAIR AND ISSUE A RECALL FOR ALL M272 AND M273 ENGINES IN USA AND CANADA. *TR
NHTSA ODI #10427236
80,000 miles · Aug 20, 2011
Engine And Engine Cooling
MY 2006 MERCEDES BENZ R350 WAS DIAGNOSED WITH A COUNTER BALANCE SHAFT/GEAR PROBLEM. IT HAS 85000 MILES... WHICH DOESN'T SEEM LIKE A LOT FOR A CAR THAT IS 5 YEARS OLD AND SUPPOSED TO LAST FOREVER. PLUS I HAVE MAINTAINED THE CAR WITH OIL CHANGES, TIRES, ETC AND AM THE ORIGINAL OWNER. I SEE ON LINE THAT THERE IS A CLASS ACTION SUIT…
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MY 2006 MERCEDES BENZ R350 WAS DIAGNOSED WITH A COUNTER BALANCE SHAFT/GEAR PROBLEM. IT HAS 85000 MILES... WHICH DOESN'T SEEM LIKE A LOT FOR A CAR THAT IS 5 YEARS OLD AND SUPPOSED TO LAST FOREVER. PLUS I HAVE MAINTAINED THE CAR WITH OIL CHANGES, TIRES, ETC AND AM THE ORIGINAL OWNER. I SEE ON LINE THAT THERE IS A CLASS ACTION SUIT PENDING . I BELIEVE A $5000 REPAIR IS WAY TOO MUCH AND THE COMPANY SHOULD TAKE RESPONSIBILITY. *TR
NHTSA ODI #10420817
55,000 miles · Aug 20, 2011
Engine And Engine Cooling
CHECK ENGINE LIGHT CAME ON. THE VEHICLE FAILED STATE INSPECTION AND WAS TAKEN TO A MERCEDES DEALER FOR DIAGNOSIS. THEY REPORT THAT THERE IS A BALANCE SHIFT PROBLEM THAT WAS RELATED TO WEAR AND TEAR. THE REPAIR COSTS 5,000.00. I FOUND ONLINE THAT THERE IS A CLASS ACTION SUIT REGARDING THIS ISSUE. I BELIEVE MERCEDES IS WELL AWARE …
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CHECK ENGINE LIGHT CAME ON. THE VEHICLE FAILED STATE INSPECTION AND WAS TAKEN TO A MERCEDES DEALER FOR DIAGNOSIS. THEY REPORT THAT THERE IS A BALANCE SHIFT PROBLEM THAT WAS RELATED TO WEAR AND TEAR. THE REPAIR COSTS 5,000.00. I FOUND ONLINE THAT THERE IS A CLASS ACTION SUIT REGARDING THIS ISSUE. I BELIEVE MERCEDES IS WELL AWARE THAT THIS ID A DEFECTIVE PART AND WILL NOT RECALL THE VEHICLE DUE TO FINANCIAL RAMIFICATIONS. *TR
NHTSA ODI #10420793
80,000 miles · Jul 20, 2011
Engine And Engine Cooling
MY CAR HAS ALWAYS BEEN SERVICE BY MERCEDES DEALERSHIP. I BARELY DRIVE MY R350 MERCEDES. MY CHECK ENGINE LIGHT CAME ON AND I WAS TOLD THAT MY BALANCE SHAFT AND INTAKE MANIFOLD NEEDED TO BE REPLACED. THE DEALER SAID ITS A COMMON PROBLEM THAT OCCUR WITH THE 2006 AND THEY ARE NOT SURE WHY ITS NOT A RECALL. *KB
NHTSA ODI #10413833
68,080 miles · Jun 30, 2011
Engine And Engine CoolingFuel System, GasolinePower Train
THE VEHICLE INDICATED CHECK ENGINE LIGHT AND THE ERROR CODE SHOWS P0016 WHICH IS SHAFT BALANCE ISSUE. THE DEALER AND MANUFACTURER WOULD NOT ATTEND TO IT DESPITE THE FACT THAT IT A KNOWN ERROR FROM FACTORY. THE ISSUE WOULD REOCCUR BECAUSE OF POOR MATERIAL AND COULD CAUSE THE CAR TO STALL WHILE IN TRAVEL.
NHTSA ODI #10411070
62,000 miles · Feb 24, 2011
Engine And Engine Cooling
BALANCE SHAFT PROBLEMS IN 2006 R350 MERCEDES BENZ AT 62K MILES. *TR
NHTSA ODI #10384253