NHTSA owner reports · September 18, 2026 snapshot.
What owners actually said
47 reportsMileage unknown · Feb 28, 2013
Seats
2007 MERCEDES BENZ R350. CONSUMER REQUESTS AN INVESTIGATION OF FAULTY SEAT HEATER ELEMENT IN VEHICLE. *SMD THE CONSUMER STATED AS SHE WAS DRIVING WITH THE SEAT HEATER ON, SHE SUDDENLY NOTICED SMOKE AROUND HER HEAD AND REALIZED THAT IT WAS COMING FROM OVER HER SHOULDER. SHE IMMEDIATELY TURNED OFF THE SEAT HEATER AND AFTER A F…
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2007 MERCEDES BENZ R350. CONSUMER REQUESTS AN INVESTIGATION OF FAULTY SEAT HEATER ELEMENT IN VEHICLE. *SMD THE CONSUMER STATED AS SHE WAS DRIVING WITH THE SEAT HEATER ON, SHE SUDDENLY NOTICED SMOKE AROUND HER HEAD AND REALIZED THAT IT WAS COMING FROM OVER HER SHOULDER. SHE IMMEDIATELY TURNED OFF THE SEAT HEATER AND AFTER A FEW MINUTES THE SMOKE STOPPED. WHEN SHE EXITED THE VEHICLE, SHE NOTICED A BURN HOLE IN THE UPRIGHT PART OF THE SEAT. THE CONSUMER TOOK THE VEHICLE TO THE DEALER, WHERE SHE WAS INFORMED THE SEAT HEATER WAS THE CAUSE OF THE HOLE AND SMOKE.
NHTSA ODI #10501503
54,400 miles · Feb 4, 2013
Electrical SystemSeats
I TURNED ON THE SEAT WARMER AND A MINUTE LATER I SMELL SOMETHING BURNING AND I LOOK TO THE SIDE AND THERE WAS SMOKE COMING OUT OF MY JEANS AND I GOT OUT OF THE CAR AND I SEE SMOKE COMING OUT THE DRIVERS SIDE SEAT. I IMMEDIATELY TURNED OFF THE CAR AND IT OPEN A SMALL HOLE IN THE DRIVERS SEAT. *TR
NHTSA ODI #10496337
55,000 miles · Jan 21, 2013
Electrical SystemSeats
MY WIFE WAS DRIVING OUR MERCEDES R350 WITH TWO OF OUR CHILDREN AND NOTICED A BURNING SMELL IN THE VEHICLE. AFTER STOPPING THE VEHICLE, SHE SOON REALIZED THAT THE HEAT WARMER ON THE SEAT HAD BURNED A HOLE IN THE SEAT AND SINGED HER SWEATER LEAVING A BLACK MARK. SHE TURNED OFF THE SEAT WARMER TO AVOID ANY FURTHER ISSUES, INCLUDING…
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MY WIFE WAS DRIVING OUR MERCEDES R350 WITH TWO OF OUR CHILDREN AND NOTICED A BURNING SMELL IN THE VEHICLE. AFTER STOPPING THE VEHICLE, SHE SOON REALIZED THAT THE HEAT WARMER ON THE SEAT HAD BURNED A HOLE IN THE SEAT AND SINGED HER SWEATER LEAVING A BLACK MARK. SHE TURNED OFF THE SEAT WARMER TO AVOID ANY FURTHER ISSUES, INCLUDING THE POTENTIAL OF A FIRE OR AN INJURY TO HER. THE DEALERSHIP SAID THAT BECAUSE THE CAR WAS OUT OF WARRANTY THE REPAIR WOULD BE $1,200. WHEN WE PASSED ON THE ITEM AND SAID WE SIMPLY WOULD STOP USING THE WARMER, THEY OFFERED 2/3 ASSISTANCE (1/3 FROM THE DEALERSHIP & 1/3 FROM MERCEDES) WITH US PAYING THE REMAINING 1/3. WE ACCEPTED THE OFFERED AND HAD THE SEAT REPAIRED. HOWEVER, THE SITUATION COULD HAVE BEEN VERY DANGEROUS HAD A FIRE OCCURRED, HAD SHE BEEN BURNED OR HAD SHE LOST FOCUS ON THE ROAD CAUSING AN ACCIDENT. I AM APPRECIATIVE THAT THE DEALERSHIP IS DOING WHAT THEY CAN TO HELP ADDRESS THE ISSUE, HOWEVER, I BELIEVE THE MANUFACTURER NEEDS TO TAKE RESPONSIBILITY IN THIS SITUATION - ESPECIALLY SINCE I'VE READ MULTIPLE ACCOUNTS OF VERY SIMILAR INCIDENTS IN MERCEDES VEHICLES. *TR
NHTSA ODI #10493644
84,600 miles · Jan 7, 2013
Air BagsSuspension
I JUST BOUGHT THIS CAR IN OCTOBER, 2012. ONE MORNING I NOTICED THAT IT WAS LEANING ON THE RIGHT PASSENGER SIDE. I TOOK IT BACK TO THE DEALERSHIP I BOUGHT IT FROM. THEY STATED THAT IT WAS THE AIR BAGS??/SUSPENSION? THEIR MECHANIC SUPPOSEDLY FIXED IT! ON 1/4/2013, I NOTICED THAT IT WAS LEANING AGAIN ON THE RIGHT PASSENGER SIDE. I …
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I JUST BOUGHT THIS CAR IN OCTOBER, 2012. ONE MORNING I NOTICED THAT IT WAS LEANING ON THE RIGHT PASSENGER SIDE. I TOOK IT BACK TO THE DEALERSHIP I BOUGHT IT FROM. THEY STATED THAT IT WAS THE AIR BAGS??/SUSPENSION? THEIR MECHANIC SUPPOSEDLY FIXED IT! ON 1/4/2013, I NOTICED THAT IT WAS LEANING AGAIN ON THE RIGHT PASSENGER SIDE. I HAVE CONTACTED A MERCEDES DEALERSHIP AND THEY STATED THAT THESE CARS HAVE PROBLEMS WITH AIRMATIC AND SUSPENSION.WHY ARE THERE NO RECALLS FOR THIS? THE COST TO FIX AT MERCEDES DEALERSHIP IS OVER 1,500 DOLLARS! *TR
NHTSA ODI #10491651
127,000 miles · Mar 21, 2012
Engine And Engine Cooling
I WAS DRIVING HOME AND THE R350 JERKED AND THEN SLOWED DOWN AND WOULD NOT SHIFT GEARS, STAYED ON FIRST GEAR ALL THROUGH MY RIDE HOME. THE CAR STARTED IN THE MORNING BUT AGAIN WOULD NOT SHIFT GEARS AND NO WARNING LIGHT SHOWED ON THE DASH BOARD. I HAVE TAKEN IT TO THE DEALER SHOP WHERE I BOUGHT IT IN VA AND I AM AWAITING THE VERDI…
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I WAS DRIVING HOME AND THE R350 JERKED AND THEN SLOWED DOWN AND WOULD NOT SHIFT GEARS, STAYED ON FIRST GEAR ALL THROUGH MY RIDE HOME. THE CAR STARTED IN THE MORNING BUT AGAIN WOULD NOT SHIFT GEARS AND NO WARNING LIGHT SHOWED ON THE DASH BOARD. I HAVE TAKEN IT TO THE DEALER SHOP WHERE I BOUGHT IT IN VA AND I AM AWAITING THE VERDICT. *JS
NHTSA ODI #10452494
100,000 miles · Mar 8, 2012
SeatsFire
TL* THE CONTACT OWNS A 2007 MERCEDES BENZ R350. THE CONTACT STATED THAT WHILE DRIVING 75 MPH, SHE BEGAN TO SMELL A BURNING ODOR. THE CONTACT STOPPED THE VEHICLE AND NOTICED THAT HER COAT WAS ON FIRE. UPON FURTHER EXAMINATION, THE CONTACT NOTICED THAT THE BACKING OF THE FRONT DRIVER'S SEAT WAS BURNED DUE TO THE SEAT WARMER. THE M…
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TL* THE CONTACT OWNS A 2007 MERCEDES BENZ R350. THE CONTACT STATED THAT WHILE DRIVING 75 MPH, SHE BEGAN TO SMELL A BURNING ODOR. THE CONTACT STOPPED THE VEHICLE AND NOTICED THAT HER COAT WAS ON FIRE. UPON FURTHER EXAMINATION, THE CONTACT NOTICED THAT THE BACKING OF THE FRONT DRIVER'S SEAT WAS BURNED DUE TO THE SEAT WARMER. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND THE CONTACT WAS AWAITING A RESPONSE. THE VEHICLE WAS NOT TAKEN TO HAVE THE FAILURE DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 100,000.
NHTSA ODI #10450805
Mileage unknown · Nov 5, 2011
Engine And Engine Cooling
THE CHECK ENGINE LIGHT CAME ON AND SOON THE CAR BEGAN TO HAVE TROUBLE STARTING. I THEN BEGAN SPUTTERING WHILE DRIVING. MERCEDES DEALER INFORMED US THAT THE BALANCE SHAFT HAD FAILED AND NEEDED TO BE REPLACED. THIS REPAIR WOULD COST CLOSE TO $6,000. I HAVE SEEN THAT THIS IS A VERY COMMON COMPLAINT, ALMOST AS IF IT IS TO BE EXPECTE…
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THE CHECK ENGINE LIGHT CAME ON AND SOON THE CAR BEGAN TO HAVE TROUBLE STARTING. I THEN BEGAN SPUTTERING WHILE DRIVING. MERCEDES DEALER INFORMED US THAT THE BALANCE SHAFT HAD FAILED AND NEEDED TO BE REPLACED. THIS REPAIR WOULD COST CLOSE TO $6,000. I HAVE SEEN THAT THIS IS A VERY COMMON COMPLAINT, ALMOST AS IF IT IS TO BE EXPECTED. I ALSO SEE THAT THERE IS A CLASS ACTION LAWSUIT THAT WAS FILED IN 2010. THIS POSES A SAFETY PROBLEM WHEN I DRIVE MY CHILDREN, AND I CANNOT AFFORD TO PAY THE REPAIR BILL. *TR
NHTSA ODI #10434300
54,109 miles · Jun 22, 2011
Engine And Engine Cooling
MY 2007 MERCEDES R350 HAS BEEN DIAGNOSED WITH ENGINE BALANCE SHAFT PROBLEM AND THE DEALER HAS RECOMMENDED TO REPLACE BALANCE SHAFT (ENGINE BALANCE SHAFT). THE MILEAGE ON MY CAR IS 54109 MILES AND IS LESS THAN 5 YRS OLD. THE DEALER IS QUOTING $5300 + TAXES FOR THIS ISSUE. AFTER SEARCHING ON THE INTERNET, CAME ACROSS MANY MANY OTH…
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MY 2007 MERCEDES R350 HAS BEEN DIAGNOSED WITH ENGINE BALANCE SHAFT PROBLEM AND THE DEALER HAS RECOMMENDED TO REPLACE BALANCE SHAFT (ENGINE BALANCE SHAFT). THE MILEAGE ON MY CAR IS 54109 MILES AND IS LESS THAN 5 YRS OLD. THE DEALER IS QUOTING $5300 + TAXES FOR THIS ISSUE. AFTER SEARCHING ON THE INTERNET, CAME ACROSS MANY MANY OTHERS WHO HAVE/HAD THE SAME ISSUE WITH VARIOUS MERCEDES MODELS SPECIFICALLY WITH ENGINES M272 AND M273. ALSO A CLASS ACTION LAWSUIT HAS BEEN FILED ON 10/5/2010 IN THE STATE OF NEW JERSEY WHOSE LINK IS HTTP://WWW.COURTHOUSENEWS.COM/2010/10/07/MERCEDES.PDF . MERCEDES HAS ALSO RELEASE INSTRUCTIONS FOR THIS SPECIFIC PROBLEM TO THE DEALER MECHANICS OF HOW TO REPAIR THIS AS IT HAS BEEN HAPPENING WITH M272 AND M273 ENGINES. *TR
NHTSA ODI #10408550
81,000 miles · Jun 18, 2011
EquipmentFuel System, OtherPower Train
I HAVE A 2007 R350 81,000 AC BLOW MOTOR WENT OUT. HAD CAR SERVICED CHECK ENGINE LIGHT CAME ON WITHIN 100 MILES. TOOK CAR BACK TO REPAIR SHOP HE SAID CAR READS IT RUNNING TOO RICH. RESET SWITCH CHECK ENGINE LIGHT CAME BACK O WITHIN 10 MILES AGAIN. CAR SEEMS TO BE PULLING ONCE I'VE SLOWED DOWN AS IF IT WANTS TO GO FASTER. MY COD…
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I HAVE A 2007 R350 81,000 AC BLOW MOTOR WENT OUT. HAD CAR SERVICED CHECK ENGINE LIGHT CAME ON WITHIN 100 MILES. TOOK CAR BACK TO REPAIR SHOP HE SAID CAR READS IT RUNNING TOO RICH. RESET SWITCH CHECK ENGINE LIGHT CAME BACK O WITHIN 10 MILES AGAIN. CAR SEEMS TO BE PULLING ONCE I'VE SLOWED DOWN AS IF IT WANTS TO GO FASTER. MY CODES READ P21 88. HELP!!! *TR
NHTSA ODI #10407379
47,729 miles · Aug 16, 2010
Electrical System
2007 MERCEDES BENZ R350 4 MATIC/WHILE DRIVING ON THE HIGHWAY, VEHICLES JERKS ABRUPTLY AND HARD. ESP WARNING LIGHT(SIGN) SUDDENLY APPEARS IN DASH AS A MALFUNCTION (INOPERABLE). AS A RESULT, ALL WARNING LIGHTS STARTS FLASHING, INCLUDING BRAKE LIGHT. VEHICLE WILL NOT SHIFT IN ANY GEAR INCLUDING PARK. WILL ONLY CONTINUE TO FUNCT…
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2007 MERCEDES BENZ R350 4 MATIC/WHILE DRIVING ON THE HIGHWAY, VEHICLES JERKS ABRUPTLY AND HARD. ESP WARNING LIGHT(SIGN) SUDDENLY APPEARS IN DASH AS A MALFUNCTION (INOPERABLE). AS A RESULT, ALL WARNING LIGHTS STARTS FLASHING, INCLUDING BRAKE LIGHT. VEHICLE WILL NOT SHIFT IN ANY GEAR INCLUDING PARK. WILL ONLY CONTINUE TO FUNCTION IN DRIVE @ 40MPH OR LOWER. INFORMATION WINDOW SAYS "VISIT MB WORKSHOP IMMEDIATELY WITHOUT SHIFTING GEARS". ONCE IGNITION IS TURNED OFF, VEHICLE WILL NOT START. REPLACED ESP/SCM FOR STEERING ANGLE SENSOR.(PART AVAILABLE). STILL MALFUNCTIONS AS OF 8/16/2010. *TR
NHTSA ODI #10349689