2007 Mercedes-Benz R350 Problems
Owner-reported complaints filed with NHTSA, grouped by component
Data refreshed
What this page shows
Everything below is an owner-reported complaint submitted to NHTSA about the 2007 Mercedes-Benz R350, grouped by the component NHTSA recorded on the report. These are not confirmed defects, and they are not recalls. NHTSA does not verify most reports before publishing them, and a category with more reports in it is not evidence that a part is defective.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
Reports by component
Ranked by how many owner reports name each component category
- Suspension1624.6%
- Engine1015.4%
- Interior & seats710.8%
- Brakes69.2%
- Powertrain (other)46.2%
- Electrical46.2%
- Airbags34.6%
- Heating & air conditioning34.6%
- Steering23.1%
- Other / unspecified23.1%
- Driver assistance23.1%
- Visibility23.1%
- Exterior lighting23.1%
- Fuel system11.5%
- Transmission11.5%
Percentages are of component mentions. A single complaint can name more than one component, so these do not sum to the total complaint count.
Each component in detail
What the reports in each category say, in the owners' own words
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
MERCEDES R350 4MATIC YEAR 2007, CURRENT 80000 MILES. 1/ FIRST ISSUE AROUND 20000 MILES, AC IS NOT WORKING WHEN USED FOR LONG HOURS OF DRIVING. NEED TO STOP THE VEHICLE AND TURN OFF ENG AND RESTART ENG THEN TURN AC BACK ON TO MAKE IT WORK AGAIN. HAPPEND TILL NOW 80000 MILES. NOISE COME FROM ALL 4 DOORS DUE TO THE GAP SEAL OF THE ALL DOOR VIBRATION WHILE DRIVING. 2/ AROUND 40000 MILES, POWER SW WINDOW ON DRIVER SIDE COME OFF AT ALL 4 BUTTONS JUST LIKE A PCS KNOCK OFF OF TOY. 3/ AUTO POWER TRUNK IS NOT WORKING, BELT TENSSION PULLEY BROKE AT 50000 MILES. 4/ FRONT BRAKEPAD REPLACE EVERY 30000 MILES + FRONT ROTOR REPLACE AT 60000 MILES, REARPAD AT 40000 MILES. 5/ 70000 MILES REAR LEFT AIR SHOCK LEAK + 78000 MILES REAR RIGHT AIR SHOCK LEAK + POWER STERRING LEAK DUE TO SEAL RING BROKE + 77000 MILES OIL CAM PLUG BROKE THEN OIL LEAKING. 6/ 78000 MILES A BIG PROBLEM COME UP: TRANSMISSION IS NOT SHIFTING ANYMORE AND STUCK AT LOW GEAR (VALVE BODY SERVICE TIME) IF YOU DONT WANT TO REPLACE A WHOLE NEW 7 GEARS TRANSMISSION. 7/ 78000 MILES INTAKE MANIFOLD FLAP ARM BROKEN THEN ENG LIGHT POP UP. THIS IS A NOT RELIABLE VEHICLE TO DRIVE AND WORTHLESS OF $55000. PLEASE DO SOME RESEARCH BEFORE BUY THIS TYPE OF VEHICLE. SO MANY REPEATS PROBLEM FROM CAR OWNER.....
HISSING NOISE,LEANING TO THE RIGHT PASSENGER SIDE, POWER WINDOW BOTTONS ARE BREAK EASILY,EMERGENCY BRAKE HANDLE CAME OFF/BREAK EASILY, AND TRUNK STOPPED WORKING.IF THIS VEHICLE LEAN MORE LOW TO THE GROUND, THIS COULD CAUSE SERIOUS ACCIDENT. THIS IS NOT SAFE TO DRIVE, DO NOT PUT YOUR CHILDREN IN THIS TYPE OF VEHICLE. WE REGRETED GETTING THIS VEHICLE. PEOPLE DO YOUR RESEARCH, THIS VEHICLE IS EXPENSIVE TO FIX. TOO MANY DEFECTS! IT'S HORRIBLE!
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
Error codes P0016 and P0017 camshaft out of alignment and vehicle will not pass smog test, also loss of power of the engine.
UNKNOWN
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
GOT IN MY CAR AND TURNED ON MY SEAT WARMERS AND PROCEEDED TO DRIVE. AFTER DRIVING FOR 5 MINUTES I NOTICED A SMELL, THOUGH IT WAS THE FUMES FROM THE CAR IN FRONT OF ME. I KEPT DRIVING AND THEN I FELT SOME DISCOMFORT ON MY LOWER LEFT UPPER HIP AREA. FELT LIKE SOMETHING WAS BITING ME. BY THIS TIME I WAS A MAJOR HIGHWAY AND KEPT FEELING DISCOMFORT....GOT TO MY DESTINATION AND PROCEEDED TO GET OUT OF THE CAR AND MY COAT WAS STUCK TO THE SEAT. I TURNED AROUND AND TO LOOK AT THE SEAT AND THERE WAS A HOLE IN THE SEAT AND MY COAT. THE DISCOMFORT I FELT WAS THE BURNING FROM THE SEAT. *TR
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ R350. WHILE OPERATING THE VEHICLE, A BURNING ODOR WAS PRESENT INSIDE THE VEHICLE. THE DRIVER LATER NOTICED THAT THE DRIVER SIDE LUMBAR AREA OF THE FRONT DRIVER SEAT BECAME EXTREMELY HOT AND BURNED THROUGH THE LEATHER SEAT AND THE CLOTHING WORN BY THE DRIVER. THERE WERE NO INJURIES. THE CAUSE OF THE FAILURE WAS NOT DIAGNOSED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 104,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Brakes
Reports naming service brakes, the antilock braking system, brake hoses, master cylinders or the parking brake.
From owner reports, verbatim
Pressed down on braked and nothing happened. Pressed down on emergency break to aid in stopping. No warning lights or sounds
UNKNOWN
Too few reports in this category for a page of its own — they appear in the full complaint list.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
UNKNOWN
CHECK ENGINE LIGHT CAME UP. CAR CANNOT ACCELERATE BEYOND ~30 MPH EVEN WITH HIGH REV.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
REPLACE ENGINE, TRANSMISSION, 3 SUSPENSIONS IS 3 YEARS-TWICE ON THE RIGHT SIDE MERCEDES AND INTERCAR CLAIMED THAT RIGHT REAR AIR SPRING HAD A LEAK LEFT REAR SHOCK LEAKING AND CLAIMED NORMAL WEAR AND TEAR AT 71725 MILES-SO WAS THE PAGES AND PAGES OF THE LINK BELOW AT 71000 MILES, POWER DOOR LOCKS STOPPED WORKING, POWER DRIVERS MIRROR STOPPED WORKING, SAFETY LOCK FOR BACK WINDOWS STOP WORKING, BURNS 2 QUARTS OF OIL A MONTH, SUNROOF LEAKS, AND DOESN'T ALWAYS CLOSE ALL THE WAY, ABS SPEED SENSORS DEFECTIVE, REAR MAIN RADIAL SEAL IN TRANSMISSION DEFECTIVE, REPLACE DEFECTIVE ENGINE THERMOSTAT, REPLACED THE BATTERIES DUE TO CORROSION (UNDER THE SEAT), FAULTY SIGNALS FOR TAIL LIGHTS AND PARKING TAIL LAMPS (ELECTRICAL), AIR CONDITIONING AMBIENT SENSOR DEFECTIVE, REPLACE DEFECTIVE RADIO ANTENNA. THIS CAR HAS MAJOR DESIGN FLAWS, AND HAS BEEN DISCONTINUED BY MB. MY 2007 R350 HAS HIT EVERY DEFECT LISTED BELOW WITH THE EXCEPTION OF PARKING BRAKE, AND STEERING COLUMN. MERCEDES-BENZ ALWAYS CLAIMS IT IS NORMAL WEAR AND TEAR. I KNOW OF NO CAR LET ALONE A MERCEDES WITH THIS MANY DEFECTS, I WANT THEM TO BUY THIS PIECE OF JUNK BACK, THEY OFFERED ME 2000 TOWARDS A NEW MERCEDES, I HAVE BEEN DRIVING MERCEDES SINCE 1995 AND NEVER HAD PROBLEMS LIKE THIS. YOU WOULD THINK AS MANY OF THEIR CARS I OWNED THAT THEY WOULD HAVE STEPPED UP TO SAVE NOT JUST THEIR REPUTATION BUT O SAVE A CLIENT. SUSPENSION COMPLAINTS: ALL AT SIMILAR MILEAGE, MB RESPONSE WAS NORMAL WEAR AND TEAR. HTTP://WWW.ABOUTAUTOMOBILE.COM/COMPLAINT/2007/MERCEDES-BENZ/R350/SUSPENSION. *TR
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Airbags
Reports naming the air-bag system — deployment behaviour, inflators, sensors and warning lights.
From owner reports, verbatim
Pressed down on braked and nothing happened. Pressed down on emergency break to aid in stopping. No warning lights or sounds
HISSING NOISE,LEANING TO THE RIGHT PASSENGER SIDE, POWER WINDOW BOTTONS ARE BREAK EASILY,EMERGENCY BRAKE HANDLE CAME OFF/BREAK EASILY, AND TRUNK STOPPED WORKING.IF THIS VEHICLE LEAN MORE LOW TO THE GROUND, THIS COULD CAUSE SERIOUS ACCIDENT. THIS IS NOT SAFE TO DRIVE, DO NOT PUT YOUR CHILDREN IN THIS TYPE OF VEHICLE. WE REGRETED GETTING THIS VEHICLE. PEOPLE DO YOUR RESEARCH, THIS VEHICLE IS EXPENSIVE TO FIX. TOO MANY DEFECTS! IT'S HORRIBLE!
Too few reports in this category for a page of its own — they appear in the full complaint list.
Heating & air conditioning
Reports naming the heating, ventilation and air-conditioning system.
From owner reports, verbatim
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ R350. FIVE MINUTES AFTER THE CONTACT ACTIVATED THE SEAT WARMER, SHE SMELLED AN ABNORMAL BURNING ODOR. WHEN THE CONTACT ATTEMPTED TO EXIT THE VEHICLE, HER JACKET WAS STUCK TO THE SEAT. UPON INSPECTION, THE CONTACT NOTICED A HOLE IN THE SEAT AND JACKET. THE CONTACT SUSTAINED MINOR BURN INJURIES. IT WAS UNKNOWN IF MEDICAL ATTENTION WAS REQUIRED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 148,000.
TL* THE CONTACT OWNS A 2007 MERCEDES-BENZ R350. WHILE DRIVING APPROXIMATELY 20 MPH, THE INSIDE OF THE VEHICLE FILLED WITH SMOKE. THE CONTACT NOTICED THAT THE DRIVER'S SEAT CAUGHT FIRE. THE CONTACT STATED THAT THE SEAT WARMER WAS ACTIVATED AND, ONCE THE SEAT WARMER WAS DEACTIVATED, THE FIRE EXTINGUISHED INDEPENDENTLY. THERE WERE NO INJURIES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 90,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
STEERING IS DIFFICULT TO TURN WHILE AT LOW RPM OR AT STANDSTILL. STEERING TURNS EASILY WHILE RPM IS >800. THIS IS AN ONGOING PROBLEM WITH MERCEDES R-CLASS AND M-CLASS. POWER STEERING PUMP NEEDS TO BE RECALLED AND REPLACED. *TR
TL*THE CONTACT OWNS A 2007 MERCEDES BENZ R350. WHILE DRIVING, THE CONTACT HEARD LOUD RATTLING NOISES COMING FROM VARIOUS PARTS OF THE VEHICLE, ESPECIALLY THE STEERING WHEEL. HE TOOK THE VEHICLE TO THE DEALER AND THEY REPLACED THE STEERING COLUMN CUP. THE FOLLOWING DAY, HE HEARD THE RATTLING NOISE AGAIN AND THE SUN ROOF MALFUNCTIONED. INITIALLY, THE DEALER WOULD NOT RETURN HIS PHONE CALLS, HOWEVER, THEY FINALLY OFFERED TO RETRIEVE HIS VEHICLE. THE POWERTRAIN AND SPEED WERE UNKNOWN. THE CURRENT MILEAGE WAS 1,700 AND FAILURE MILEAGE WAS 300.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Other / unspecified
Reports whose component NHTSA recorded as unknown, or that do not map to one of the categories above.
From owner reports, verbatim
MERCEDES R350 4MATIC YEAR 2007, CURRENT 80000 MILES. 1/ FIRST ISSUE AROUND 20000 MILES, AC IS NOT WORKING WHEN USED FOR LONG HOURS OF DRIVING. NEED TO STOP THE VEHICLE AND TURN OFF ENG AND RESTART ENG THEN TURN AC BACK ON TO MAKE IT WORK AGAIN. HAPPEND TILL NOW 80000 MILES. NOISE COME FROM ALL 4 DOORS DUE TO THE GAP SEAL OF THE ALL DOOR VIBRATION WHILE DRIVING. 2/ AROUND 40000 MILES, POWER SW WINDOW ON DRIVER SIDE COME OFF AT ALL 4 BUTTONS JUST LIKE A PCS KNOCK OFF OF TOY. 3/ AUTO POWER TRUNK IS NOT WORKING, BELT TENSSION PULLEY BROKE AT 50000 MILES. 4/ FRONT BRAKEPAD REPLACE EVERY 30000 MILES + FRONT ROTOR REPLACE AT 60000 MILES, REARPAD AT 40000 MILES. 5/ 70000 MILES REAR LEFT AIR SHOCK LEAK + 78000 MILES REAR RIGHT AIR SHOCK LEAK + POWER STERRING LEAK DUE TO SEAL RING BROKE + 77000 MILES OIL CAM PLUG BROKE THEN OIL LEAKING. 6/ 78000 MILES A BIG PROBLEM COME UP: TRANSMISSION IS NOT SHIFTING ANYMORE AND STUCK AT LOW GEAR (VALVE BODY SERVICE TIME) IF YOU DONT WANT TO REPLACE A WHOLE NEW 7 GEARS TRANSMISSION. 7/ 78000 MILES INTAKE MANIFOLD FLAP ARM BROKEN THEN ENG LIGHT POP UP. THIS IS A NOT RELIABLE VEHICLE TO DRIVE AND WORTHLESS OF $55000. PLEASE DO SOME RESEARCH BEFORE BUY THIS TYPE OF VEHICLE. SO MANY REPEATS PROBLEM FROM CAR OWNER.....
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Driver assistance
Reports naming forward-collision avoidance, lane keeping, back-over prevention, cruise control and related electronic driver-assistance systems.
From owner reports, verbatim
Pressed down on braked and nothing happened. Pressed down on emergency break to aid in stopping. No warning lights or sounds
WHILE DRIVING THE ESP/ABS LIGHT BEGAN FLASHING AND A THE CAR MADE A BEEPING SOUND. THE WARNING LIGHT CAME ON AND A MESSAGE STATING "DRIVE DIRECTLY TO THE WORKSHOP WITHOUT SWITCHING GEARS," POPPED UP. I STOPPED THE CAR AND STARTED IT AGAIN AND THERE WAS NO LIGHT FOR ABOUT 2 MINUTES OF DRIVING, THEN THE LIGHTS BEGAN AGAIN ABS/ESP AND FLASHING INOPERATIVE LIGHT. I DROVE THE CAR HOME AS IT WAS SCHEDULED FOR AN APPOINTMENT THE FOLLOWING MORNING. THE NEXT MORNING I TRIED STARTING THE CAR AND IT WOULD NOT START AND STARTED BEEPING INCESSANTLY. THE CAR WAS INOPERATIVE AND WOULD NOT START OR CRANK. I HAD TO CALL MERCEDES BENZ ROADSIDE ASSISTANCE TO TRANSPORT THE VEHICLE TO THE DEALERSHIP. IT WAS FOUNDED BY THE DEALERSHIP THAT THERE WAS A WIRING SENSOR PROBLEM CAUSING INACCURATE SIGNALS TO BE SENT TO THE ENGINE.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Visibility
Reports naming windshields, glass, wipers, defrosters and mirrors.
From owner reports, verbatim
THE PANORAMIC SUNROOF WAS BROKEN WITH NO IMPACT AT ALL. I THINK WAS THE HEAT BUT I CAN'T ASSURE THAT. *TR
TL*THE CONTACT OWNS A 2007 MERCEDES BENZ R350. WHILE DRIVING, THE CONTACT HEARD LOUD RATTLING NOISES COMING FROM VARIOUS PARTS OF THE VEHICLE, ESPECIALLY THE STEERING WHEEL. HE TOOK THE VEHICLE TO THE DEALER AND THEY REPLACED THE STEERING COLUMN CUP. THE FOLLOWING DAY, HE HEARD THE RATTLING NOISE AGAIN AND THE SUN ROOF MALFUNCTIONED. INITIALLY, THE DEALER WOULD NOT RETURN HIS PHONE CALLS, HOWEVER, THEY FINALLY OFFERED TO RETRIEVE HIS VEHICLE. THE POWERTRAIN AND SPEED WERE UNKNOWN. THE CURRENT MILEAGE WAS 1,700 AND FAILURE MILEAGE WAS 300.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
HISSING NOISE,LEANING TO THE RIGHT PASSENGER SIDE, POWER WINDOW BOTTONS ARE BREAK EASILY,EMERGENCY BRAKE HANDLE CAME OFF/BREAK EASILY, AND TRUNK STOPPED WORKING.IF THIS VEHICLE LEAN MORE LOW TO THE GROUND, THIS COULD CAUSE SERIOUS ACCIDENT. THIS IS NOT SAFE TO DRIVE, DO NOT PUT YOUR CHILDREN IN THIS TYPE OF VEHICLE. WE REGRETED GETTING THIS VEHICLE. PEOPLE DO YOUR RESEARCH, THIS VEHICLE IS EXPENSIVE TO FIX. TOO MANY DEFECTS! IT'S HORRIBLE!
HI, I HAVE A R350 2007 YEAR AND I HAVE AN ISSUE WITH THE RIGHT SIDE HEADLIGHT, THE LENS INSIDE THE LENS TURNED FOGGY AND BECAUSE OF THAT I AM NOT ABLE TO DRIVE IN THE NIGHT, THERE IS NO PROPER BEAM FROM THAT HEADLIGHT. I TOOK THE VEHICLE TO A DEALER AND THEY SAID ITS THE "NORMAL DISCOLORATION", AND UNABLE TO PROVIDE ANY CLEAR EXPLANATION WHY THE LENS IS FOGGY AND THEY ARE NOT REPLACING IT EVEN CONSIDERING IT HAZARD WITH THIS KIND OF LIGHT, THE LENS HAS BEEN CAUSING INCONVENIENCE TO ME IN THE NIGHT DRIVING. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Fuel system
Reports naming fuel storage or delivery — tanks, pumps, lines, injectors and fuel leaks.
From owner reports, verbatim
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Transmission
Reports naming the automatic or manual transmission, including shifting behaviour, shudder, slipping and transmission control modules.
From owner reports, verbatim
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
Too few reports in this category for a page of its own — they appear in the full complaint list.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Elsewhere on this vehicle
Data sources
- NHTSA Office of Defects Investigation — owner-reported complaints and the components recorded on them
Data on this page last refreshed .