2006 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 2006 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
- Engine3326.2%
- Suspension2620.6%
- Electrical1411.1%
- Powertrain (other)107.9%
- Interior & seats86.3%
- Exterior lighting75.6%
- Steering54.0%
- Driver assistance43.2%
- Fuel system43.2%
- Transmission32.4%
- Body & structure32.4%
- Brakes32.4%
- Airbags32.4%
- Heating & air conditioning10.8%
- Tires & wheels10.8%
- Other / unspecified10.8%
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
Engine
Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components.
From owner reports, verbatim
My car has stalled several times, either when I am driving, or when I stop at a traffic light. Rough idling and/or running when stopped at a red light or driving at speeds that wouldn’t normally be an issue. Engine stalling or misfiring, and car sometimes have trouble starting up. Loud rattling or vibrating noises from the engine. The check engine light is turned on. I took it to Mercedes Benz Dealership in Brooklyn, NY and was told it is a Balance Shaft problem, and they told me it could cost me about $9,000.00. Further research informs me that the problem should not be ignored, nor repair put off. Also, that failure of the balance shaft leaves the inner components of the engine unsecured and therefore will ultimately result in damage to the engine if left unchecked. Also, that driving at high speeds for long periods can agitate the problem even further due to the constant vibrations without a proper securing mechanism. As a result, I parked my car for several months, since I cannot afford the amount they quoted. In essence, I cannot even enjoy the car I bought.
AS I WAS DRIVING DOWN THE HIGHWAY I PRESSED ON GAS PEDAL AND VEHICLE MADE A VERY LOUD CHAIN WHINE NOISE AND IT CUT OFF IN THE MIDDLE OF HIGHWAY AND NEVER STARTED BACK UP.
Suspension
Reports naming suspension components — springs, struts, shocks, control arms and related hardware.
From owner reports, verbatim
YESTERDAY, WHILE PARKED, I NOTICED THE CAR IS LEANING TOWARDS LEFT SIDE. MECHANIC CHECKED AND FOUND THE AIR SPRING BAG WAS LEAKING. ALSO, THE STRUT ON RIGHT GOT SHOT. MANY OWNERS HAVE THE SAME COMPLAINT. I'M SCARED TO TRAVEL WITH MY KIDS AND GRAND KIDS IN THE CAR. THESE CARS MUST BE RECALLED FOR SUSPENSION PROBLEMS. HTTP://WWW.ARFC.ORG/COMPLAINTS/2006/MERCEDES/R350/SUSPENSION/PROBLEM.ASPX
TL* THE CONTACT OWNS A 2006 MERCEDES-BENZ R350. THE CONTACT STATED THAT THE SUSPENSION FAILED ON THE FRONT PASSENGER SIDE OF THE VEHICLE WHILE PARKED. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE COMPRESSOR, RELAY, FUSE LINK, AIR SUSPENSION, AND CORE RETURN NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED, BUT THE FAILURE RECURRED TWO MORE TIMES. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 50,000.
Electrical
Reports naming the electrical system — wiring, battery, charging, control modules, infotainment and electrical accessories.
From owner reports, verbatim
CAR GOES INTO LIMP MODE CANT DRIVE FASTER THAN 20MPH ON FREEWAY VERY DANGEROUS. HAVE TO PULL OVER TURN OFF ENGINE AND RESTART CAR TO RESET. CAR JUST RANDOMLY SHUT OFF ALL ELECTRONICS DIED ON STREET. TOWED CAR TO DEALERSHIP SAYS NEEDS NEW VALVE BODY OF TRANSMISSION. RESEARCHED ONLINE VERY COMMON PROBLEM. DEFECT IN MANUFACTURING AND PARTS.
TL* THE CONTACT OWNS A 2006 MERCEDES BENZ R350. THE CONTACT STATED THAT THE FRONT DRIVERS SIDE SEAT BACK AND CUSHION HEATER WAS ACTIVATED, WHILE DRIVING APPROXIMATELY 25 MPH. A BURNING ODOR EMITTED INSIDE OF THE VEHICLE. THE VEHICLE WAS MANEUVERED TO THE SIDE OF THE ROAD. THE SEAT HEATER WAS IMMEDIATELY DEACTIVATED. THE CONTACT SUSTAINED MINOR BURNS TO THE BACK AREA AND MEDICAL ATTENTION WAS NOT REQUIRED. THERE WERE NO FLAMES VISIBLE. A FIRE REPORT WAS NOT FILED. THE VEHICLE WAS TAKEN TO THE DEALER WHERE THE SEAT AND HEATING ELEMENT WERE BOTH REPLACED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 130,000. THE VIN WAS UNAVAILABLE.
Powertrain (other)
Powertrain reports that are not specifically the engine or transmission — driveshafts, axles, transfer cases and differentials.
From owner reports, verbatim
CAR GOES INTO LIMP MODE CANT DRIVE FASTER THAN 20MPH ON FREEWAY VERY DANGEROUS. HAVE TO PULL OVER TURN OFF ENGINE AND RESTART CAR TO RESET. CAR JUST RANDOMLY SHUT OFF ALL ELECTRONICS DIED ON STREET. TOWED CAR TO DEALERSHIP SAYS NEEDS NEW VALVE BODY OF TRANSMISSION. RESEARCHED ONLINE VERY COMMON PROBLEM. DEFECT IN MANUFACTURING AND PARTS.
TL* THE CONTACT OWNS A 2006 MERCEDES BENZ R350. WHILE DRIVING APPROXIMATELY 15 MPH, THE STEERING WHEEL SEIZED WITHOUT WARNING. THE VEHICLE WAS TAKEN TO A DEALER WHERE IT WAS DIAGNOSED THAT THE STEERING PUMP NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED. IN ADDITION, THE CONTACT STATED THAT WHEN THE VEHICLE WAS SERVICED, THE TECHNICIAN STATED THAT THE TRANSMISSION VALVE BODY NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 44,000.
Interior & seats
Reports naming seats, latches, locks, linkages and interior fittings.
From owner reports, verbatim
MAY 13, 2019, MY WIFE STARTED THE CAR AND DROVE FOR LESS THAN A MILE WHEN HER DRESS STARTED SMOKING FROM THE DRIVER SEAT THAT WAS ALIGHT. SHE STOPPED THE CAR AND REMOVED OUR 11 MONTH OLD BABY FROM THE BACKSEAT AND CALLED ME. SHE HAS A VIDEO OF THE INCIDENT. I CHECKED ON MERCEDES USA SITE AND FOUND OUT THAT THERE WAS A CLASS ACTION LAW SUITE ON THIS ISSUE. WE WERE NOT NOTIFIED BY EITHER MB OR THE ADMINISTRATOR OF THE CASE. THIS COULD HAVE TURNED OUT DEADLY AS THE BATTERY IS UNDER THE PASSENGER SEAT AND THE FUEL LINES. I TURNED THE CAR ON AND AGAIN , THE SEAT STARTED TO SMOKE. IT IS NOW PARKED IN OUR DRIVEWAY AS MY WIFE AND I ARE SCARED OF PUTTING OUR KIDS IN IT. I CONTACTED MB USA AND THEY DIRECTED ME TO THE ADMINISTRATOR OF THE LAW SUITE. THIS CAN CREATE DANGEROUS OR EVEN DEADLY SITUATIONS IF MY WAS ON A HIGHWAY AND COULD NOT STOP OR FIE ESCALATES RAPIDLY WITH OUR CHILD IN THE BACK SEAT.
THE HEATED SEATS WERE TURNED ON THE DRIVER SEAT WHILE WAITING IN LINE AT A FAST FOOD DRIVE THRU ON JUNE 15, 2017 AROUND 1:00AM. I PULLED OF AFTER GETTING MY FOOD. THEN WHILE I WAS LEAVING THE PARKING LOT I STARTED TO FEEL REALLY WARM ON MY BACK AND SIDE, HOTTER THAN NORMAL. I STARTED TO SMELL SMOKE! I PULLED OVER QUICKLY AND GOT OUT OF THE CAR AND I REALIZED MY CLOTHING WAS SMOKING AND THE BACK OF MY SEAT WAS ON FIRE. THE FIRE WENT OUT AND MY JACKET AND T SHIRT HAD BURNS AND ASHES ON THEM AND MY DRIVER SEAT HAD LARGE HOLE IN IT.
Exterior lighting
Reports naming headlights, tail lights, turn signals and other exterior lighting.
From owner reports, verbatim
REAR LIGHT MODULES (TAIL, REVERSE, BRAKE, SIGNAL) KEEPS ON FAILING. DEALER QUOTES INITIALLY $200 TO FIX/REWIRE BUT THEN GOES UP TO $800 TO REPLACE ECU. THIS IS FRUSTRATING AS THIS IS DRIVING HAZARD, OWNERS ARE LEFT WITHOUT MUCH CHOICE. I HAVE SEEN MULTIPLE COMPLAINTS OF THE SAME ISSUE SO MB SHOULD ALREADY KNOW THAT THIS PROBLEM EXISTS AND BE HONEST UPFRONT ABOUT IT. I HOPE NOBODY GETS HURT IF THE LIGHTS FAIL WHILE DRIVING THIS MODEL/BRAND. *TR
TAIL LIGHTS DOES NOT ILLUMINATE, JUST THE SUBSTITUTE BULBS. I CHANGED OUT ALL THE BULBS BUT STILL NO STOP, TAIL LIGHTS. FUSES ALL GOOD. *TR
Too few reports in this category for a page of its own — they appear in the full complaint list.
Steering
Reports naming the steering system — racks, columns, power-steering assist and steering linkage.
From owner reports, verbatim
MY ABS MY EESP MY BRAKE LIGHT AND CHECK ENGINE LIGHT MINE ANYWAYS THE WHOLE CLUSTER IS GOING CRAZY IT'S HARD TO SHIFT DOWN WHEN I'M COMING TO A STOP NOT ALL THE TIME BUT JUST SOMETIMES SO I GOT A MIND OF ITS OWN MY SPEEDOMETER GOES UP AND DOWN IT SAYS CHECK MY TIRE PRESSURE WHEN IT'S GOOD MY SRS LIGHT COMES ON MY BRAKES LIGHTS COMES ON IT SAYS DIONOSTIC RIG TEST, ABS LIGHT SAYS DIONOSTIC RIG TEST, ESPECIALLY LIGHT SAYS DIONOSTIC RIG TEST. BRAKE LIGHT FLASHES ON AND OFF AND A CONTINUOUS BEEBING. IT ALSO SAYS DO NOT CHANGE GEARS DRIVE TO WORK SHOP.$ YOUR PAPER WILL NOT ALLOW ME TO CHECK OTHER BOXES THAT I'M HAVING PROBLEM WIT
TL* THE CONTACT OWNS A 2006 MERCEDES BENZ R350. THE CONTACT STATED THAT WHILE REVERSING, THE VEHICLE MADE AN ABNORMAL NOISE AS THE STEERING WHEEL SEIZED AND SMOKE STARTED TO EMIT FROM UNDER THE HOOD. THE CONTACT TURNED THE ENGINE OFF BUT THE VEHICLE FAILED TO RESTART. THE VEHICLE WAS TOWED TO AN INDEPENDENT MECHANIC. THE TECHNICIAN DIAGNOSED THAT THE POWER STEERING PUMP, SERPENTINE BELT AND IDLER PULLEY NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. HOWEVER, THE CONTACT STATED THAT THE CHECK ENGINE LIGHT STAYED ON. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 130,000.
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
MY ABS MY EESP MY BRAKE LIGHT AND CHECK ENGINE LIGHT MINE ANYWAYS THE WHOLE CLUSTER IS GOING CRAZY IT'S HARD TO SHIFT DOWN WHEN I'M COMING TO A STOP NOT ALL THE TIME BUT JUST SOMETIMES SO I GOT A MIND OF ITS OWN MY SPEEDOMETER GOES UP AND DOWN IT SAYS CHECK MY TIRE PRESSURE WHEN IT'S GOOD MY SRS LIGHT COMES ON MY BRAKES LIGHTS COMES ON IT SAYS DIONOSTIC RIG TEST, ABS LIGHT SAYS DIONOSTIC RIG TEST, ESPECIALLY LIGHT SAYS DIONOSTIC RIG TEST. BRAKE LIGHT FLASHES ON AND OFF AND A CONTINUOUS BEEBING. IT ALSO SAYS DO NOT CHANGE GEARS DRIVE TO WORK SHOP.$ YOUR PAPER WILL NOT ALLOW ME TO CHECK OTHER BOXES THAT I'M HAVING PROBLEM WIT
CAR GOES INTO LIMP MODE CANT DRIVE FASTER THAN 20MPH ON FREEWAY VERY DANGEROUS. HAVE TO PULL OVER TURN OFF ENGINE AND RESTART CAR TO RESET. CAR JUST RANDOMLY SHUT OFF ALL ELECTRONICS DIED ON STREET. TOWED CAR TO DEALERSHIP SAYS NEEDS NEW VALVE BODY OF TRANSMISSION. RESEARCHED ONLINE VERY COMMON PROBLEM. DEFECT IN MANUFACTURING AND PARTS.
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
WIRING FROM ENGINE HARNESS TO FUEL PUMP BURNT ON FREEWAY , ENGINE STALLED AND SHUT DOWN, COULD NOT START BACK UP IN MIDDLE OF I5 FREEWAY. REPAIRS ARE AMOUNTING TO $4000. COULD HAVE BURNT ENTIRE VEHICLE AND AFTER READING NUMEROUS COMPLAINTS WITH EXACT SAME PROBLEM SOMETHING NEEDS TO BE DONE.
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.
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
GEAR GETS STRUCK IN MERCEDES-BENZ R350. *TR
TL* THE CONTACT OWNS A 2006 MERCEDES-BENZ R350. WHEN ATTEMPTING TO ACCELERATE THE VEHICLE HESITATED THEN ACCELERATED UP TO 20000 RPMS (TACHOMETER RED LINE). HE WAS ABLE TO TURN THE ENGINE OFF. THE VEHICLE WAS TOWED TO THE DEALER AND REPAIRED. SEVERAL MONTHS AFTER THE REPAIR THE FAILURE RESURFACED. THE VEHICLE WAS TOWED AGAIN TO THE DEALER AND A TECHNICIAN CONCLUDED THAT THE TRANSMISSION'S ELECTRONIC DEVICE FAILED. HOWEVER HE SPECULATES THAT THE ELECTRONIC THROTTLE FAILED. THE FAILURE MILEAGE WAS APPROXIMATELY 45,000. THE CURRENT MILEAGE WAS APPROXIMATELY 49,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Body & structure
Reports naming the vehicle structure, frame, body panels, doors, hood and trim.
From owner reports, verbatim
A DEFECTIVE DRAIN OR FILTER ALLOWS WATER TO ENTER THE VENTILATION UNIT. THIS DAMAGES THE ELECTRICAL REQUIRING REPLACEMENT. RESIDUAL WATER LEAKS TO THE CARPET, CAUSING MILDEW SMELLS. *TR
A DEFECTIVE DRAIN AND/OR AIR BOX ALLOWS WATER TO ENTER THE INTERIOR AIR HANDLER/BLOWER UNIT. THIS DAMAGES THE BLOWER REQUIRING REPLACEMENT AND LEAKS TO THE CARPET, CAUSING MILDEW SMELLS AND POTENTIAL RUST. THE PROBLEM IS NOT COVERED BY MBUSA. *TR
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
The contact owns a 2006 Mercedes-Benz R350. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The dealer was made aware of the issue. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact had not experienced a failure. Parts distribution disconnect
MERCEDES 2006 WHEN I BRAKE THE CAR WILL KEEP GOING. SUDDEN ACCELERATION. THIS HAS HAPPEN TWICE AND I HAVE NOT OWNED THE CAR FOR A YEAR. I COULD KILL SOMEONE. TOOK IT TO DEALER AND THREE DIFFERENT SHOPS AND NO ONE KNOWS WHAT I'M TALKING ABOUT HELP
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
MY ABS MY EESP MY BRAKE LIGHT AND CHECK ENGINE LIGHT MINE ANYWAYS THE WHOLE CLUSTER IS GOING CRAZY IT'S HARD TO SHIFT DOWN WHEN I'M COMING TO A STOP NOT ALL THE TIME BUT JUST SOMETIMES SO I GOT A MIND OF ITS OWN MY SPEEDOMETER GOES UP AND DOWN IT SAYS CHECK MY TIRE PRESSURE WHEN IT'S GOOD MY SRS LIGHT COMES ON MY BRAKES LIGHTS COMES ON IT SAYS DIONOSTIC RIG TEST, ABS LIGHT SAYS DIONOSTIC RIG TEST, ESPECIALLY LIGHT SAYS DIONOSTIC RIG TEST. BRAKE LIGHT FLASHES ON AND OFF AND A CONTINUOUS BEEBING. IT ALSO SAYS DO NOT CHANGE GEARS DRIVE TO WORK SHOP.$ YOUR PAPER WILL NOT ALLOW ME TO CHECK OTHER BOXES THAT I'M HAVING PROBLEM WIT
TL* THE CONTACT OWNS A 2006 MERCEDES-BENZ R350. WHILE SITTING IN THE VEHICLE AND WAITING TO CHANGE A FLAT TIRE, THE PASSENGER AND DRIVER SIDE AIR BAGS DEPLOYED INADVERTENTLY. THE VEHICLE HAD NOT BEEN INVOLVED IN A CRASH. THERE WERE NO INJURIES. THE CONTACT STATED THAT THE AIR BAG WARNING INDICATOR WAS ILLUMINATED PRIOR TO THE FAILURE. THE DEALER AND MANUFACTURER WERE NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 117,000.
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 2006 MERCEDES R350. WHILE SITTING IN THE VEHICLE WITH THE HEATED SEATS ACTIVATED, THE CONTACT COULD SMELL AND SEE SMOKE AS THE SEAT BEGAN TO BURN. THE VEHICLE HAD NOT BEEN TAKEN TO AN AUTHORIZED DEALERSHIP AT THE TIME OF THE COMPLAINT. THE CURRENT AND FAILURE MILEAGES WERE APPROXIMATELY 49,000.
Too few reports in this category for a page of its own — they appear in the full complaint list.
Tires & wheels
Reports naming tires, wheels, hubs, or the tire-pressure monitoring system.
From owner reports, verbatim
THE CAR IS LEANING TO THE RIGHT SIDE. WHILE DRIVING I GET A WARNING THAT THE CAR IS TO LOW. I ALSO GET THE WARNING THAT MY TIRE PRESSURE IS LOW, WHILE DRIVING ON THE HIGHWAY. THE CAR BEGAN LEANING A FEW MONTHS AGO AND WOULD COME AND GO. THE CAR IS NOW PERMANENTLY LEANING TO THE RIGHT. *TR
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
COMPLAINT IS DIRECTED TO [email protected] IN FOREST GROVE, OREGON. AT TIME OF PURCHASE, TIRES WERE TOTALLY WORN AND DEALER AGREED TO NEW TIRE REPLACEMENT. SUBSEQUENT EVENT REVEALED REPLACEMENT TIRES WERE NOT NEW AND HAD PREVIOUSLY BEEN IMPROPERLY REPAIRED. IN ADDITION, LOAD FACTOR WAS BELOW MINIMUM MANUFACTURERS RATING AND UNSAFE. DEALER REFUSED TO REIMBURSE COST OF NEW AND CORRECT REPLACEMENT TIRES.
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 .