2009 MERCEDES-BENZ ML-Class Problems & Complaints
Real owner complaints and problems reported to the National Highway Traffic Safety Administration (NHTSA). View common issues by component.
VIN Decoder
127
Complaints Reported
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Complaints by Component
AIR BAGS
42 complaints
DEALERSHIP ON NORTHERN BLVD IN QUEENS NY UNABLE TO GIVE ME AN APPOINTMENT TO REPLACE THE BAG. THEY CLAIM THEY ARE YEARS BEHIND REPLACING MY AIR BAG AND THEY CAN'T CONFIRM WHEN THEY WILL GET A REPLACEMENT.
Dec 04, 2018
TL* TAKATA RECALL. THE CONTACT OWNS A 2009 MERCEDES-BENZ ML350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V081000 (AIR BAGS); HOWEVER, THE CONTACT WAS UNABLE TO GET THE RECALL COMPLETED DUE TO THE SRS WARNING INDICATOR BEING ILLUMINATED. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF ROCKVILLE CENTRE (110 GRAHAM AVE, HEMPSTEAD, NY) WAS CONTACTED AND REFUSED TO PERFORM THE REPAIR WITHOUT CHARGE DUE TO THE SRS WARNING INDICATOR BEING ILLUMINATED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.
Sep 06, 2018
TAKATA RECALL FOR AIR BAG REPLACEMENT
Sep 01, 2018
TL* TAKATA RECALL. THE CONTACT OWNS A 2009 MERCEDES-BENZ ML350. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V081000 (AIR BAGS); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE CONTACT STATED THAT THE MANUFACTURER EXCEEDED A REASONABLE AMOUNT OF TIME FOR THE RECALL REPAIR. MERCEDES-BENZ OF EL DORADO HILLS (1000 MERCEDES LN, EL DORADO HILLS, CA 95762, (888) 773-3154) WAS CONTACTED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS MADE AWARE OF THE ISSUE AND WAS NOT ABLE TO CONFIRM WHEN THE PARTS WERE TO BECOME AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.
Aug 14, 2018
TL* TAKATA RECALL. THE CONTACT OWNS A 2009 MERCEDES-BENZ ML320. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 16V081000 (AIR BAGS); HOWEVER, THE PARTS TO DO THE REPAIR WERE UNAVAILABLE. THE DEALER (COURTESY AUTOMOTIVE CENTER, (530) 345-9444) WAS CALLED AND CONFIRMED THAT THE PARTS WERE NOT AVAILABLE FOR THE RECALL REMEDY. THE MANUFACTURER WAS NOTIFIED OF THE ISSUE AND CONFIRMED THAT PARTS WERE NOT AVAILABLE. THE CONTACT HAD NOT EXPERIENCED A FAILURE. PARTS DISTRIBUTION DISCONNECT.
Jun 08, 2018
+ 37 more complaints for this component
SEAT BELTS
17 complaints
THE REAR SEAT BELTS DO NOT RETRACT ONCE PULLED OUT. OVER THE COURSE OF SEVERAL DAYS, THEY SLOWLY WORK THEIR WAY BACK UP. NO VEHICLE SHOULD HAVE A SEATBELT FAIL; IT IS EVEN MORE RIDICULOUS THAT THIS PART FAILED IN A CAR THAT IS THIS EXPENSIVE OR THAT HAS HAD SUCH A LONG HISTORY OF SAFETY. IT ISN'T SAFE FOR ANYONE TO SIT IN THE BACK SEATS BECAUSE THE SEAT BELTS ARE OUT-STRETCHED SO FAR THAT A PERSON WOULD BE THROWN FORWARD A WAYS BEFORE THE SEATBELTS STOPPED THEM. THAT IS DANGEROUS.
Mar 25, 2021
BOTH REAR SEAT BELTS WILL NOT RETRACT. THEY ARE FULLY EXTENDED.
Apr 29, 2019
IT DOES NOT RETRACT BACK AT ALL
Aug 01, 2018
REAR SEAT BELTS DO NOT RETRACT
May 18, 2016
LH REAR SEAT BELT DOES NOT RETRACT.
May 13, 2016
+ 12 more complaints for this component
ELECTRICAL SYSTEM
10 complaints
Odometer Fraud. The contact purchased a 2009 Mercedes-Benz ML350. The contact stated that while an independent mechanic was servicing the vehicle, the mechanic informed the contact that there was a mileage discrepancy based on the Carfax history report. The vehicle was a dealer sale. At the time of purchase in October 2024, the vehicle mileage was 146,743; however, the Carfax history report displayed that the mileage was 196,577 on July 15, 2024, while an Auction company was still in possession of the vehicle.
Aug 14, 2025
The contact owns a 2009 Mercedes-Benz ML350. The contact stated that while driving at 45 MPH in heavy rain, she observed smoke emanating from the rear of the vehicle. The contact stated that there may have been unknown warning lights illuminated. The vehicle was steered to the side of the road and turned off. The contact stated that when the vehicle was restarted, multiple unknown warning lights illuminated. The contact also stated that the key pad stopped working, and multiple electrical components stopped working, and that she experienced sinus issues thereafter. The vehicle was taken to a dealer where it was diagnosed that the SAM module got wet and there was an electrical fire because the wires were not covered and the SAM module needed to be replaced. The vehicle was not repaired. The vehicle was then taken to an independent mechanic, where it was not diagnosed, but the SAM module was replaced. The failure persisted. The vehicle was then towed to another independent mechanic, where it has yet to be diagnosed. The manufacturer was notified of the failure. The failure mileage was 140,000.
Jun 23, 2025
The contact owned a 2009 Mercedes-Benz ML350. The contact stated while driving 45-50 MPH with his wife in the front passenger seat and his children in the rear seats, his wife smelled a strong burning odor and saw smoke coming from underneath the front passenger seat. There was no warning light illuminated. The contact immediately veered to the side of the road. Both the contact and his family exited the vehicle and ran away from the vehicle. The contact stated that approximately 30 seconds after exiting the vehicle, the vehicle caught on fire and exploded several times, causing a nearby tree to catch on fire. The contact was able to extinguish the fire with the assistance of the fire department. A fire department report was filed. A police report was filed. There were no injuries sustained. The vehicle was towed to a tow yard where it was awaiting to be totaled. The dealer was notified of the failure. The manufacturer was not notified of the failure. The failure mileage was approximately 140,000.
Dec 30, 2022
The contact owns a 2009 Mercedes Benz ML350. The contact stated that while attempting to open the door with the key fob, the fob failed to open the vehicle. In addition, the contact noticed that the headlights failed and the gas gauge also failed to operate as needed. The vehicle was taken to an independent mechanic where it was diagnosed that the rear Signal Acquisition Module (SAM) board was corroded, and the rear SAM module needed to be replaced. The dealer was not contacted. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 104,284.
Feb 14, 2022
ISSUES WITH SUNROOF MB HAS DONE A RECALL ON ALL MODELS OTHER THAN "M" CLASS I'M HAVING ISSUES WITH MY 2009 ML 320
Jan 12, 2020
+ 5 more complaints for this component
SERVICE BRAKES
5 complaints
Subject: Complaint Regarding Failure to Repair Safety Recall – Brake Booster (STOP DRIVE ORDER) Background In August 2022, I received a “STOP DRIVE ORDER” recall notice from Mercedes-Benz, informing me that my ML350 was unsafe to drive due to a defective brake booster. Despite repeated attempts over nearly three years, the recall repair has not been completed. Attempts to Obtain Recall Repair Initial Attempts: Contacted Fletcher Jones Mercedes-Benz (Las Vegas) twice; they refused to schedule service citing workload. Henderson Dealership: Scheduled inspection with Mercedes-Benz of Henderson. Technician inspected my ML350 at my home, confirmed the brake booster issue, and arranged for towing. Improper Repair Demands: After holding my vehicle two weeks, Henderson dealership issued an $8,200 estimate for unrelated repairs (tires, control arms, starter). I refused, as these were unnecessary and unrelated to the recall. The service manager demanded I remove the vehicle from the lot immediately or he would have it towed to impound. Recall Parts Unavailable When I contacted Mercedes-Benz USA, I was told parts for the brake booster recall were not available, contradicting the dealership’s prior statements. My vehicle was returned unrepaired. Vehicle Mishandling •Tow company returned the vehicle at the wrong time, left it on the street with a window down, and failed to return the key. •Despite repeated requests, the key has never been returned. •The ML350 sat exposed for months, registration expired, and I had to hire another tow company to move it to my driveway. Lack of Resolution •Vehicle has been unusable for nearly 3 years. •My written correspondence and calls to Mercedes-Benz USA have gone unanswered or been mishandled (frequent transfers/dropped calls). •I have suffered financial costs, inconvenience, and loss of vehicle value. I respectfully request that 1.Immediate replacement of the defective brake booster at no cost. 2.Retrieval of my original vehicle key o
Sep 21, 2025
In mid February/early March the brakes failed while the vehicle was moving in a parking lot. After exiting the vehicle with the emergency brake on, I found a pool of brake fluid under the car. After towing it home, I had to make the decision to leave the car sitting as I did not have the financial resources to take it to an authorized mechanic as I had lost my job in January. In May learned of the recall and called the number, only to be told that I have to wait for a letter in the mail and to do nothing until I receive a letter. After roughly 2 months we received that letter, and the only instructions were to set up a service appointment, which I did at their earliest date available, which was 20 days later. As the car sat undriveable for months on end the lines clearly corroded further and further, and the battery was also damaged by sitting uncharted for that period of time. So when they received the car, they would not repair the car until the battery was replaced, which they would not cover even though they are clearly the cause of that as well. Then, four days after receiving the car, they have decided that the brake failure was caused by excessive corrosion (which was not there until the car sat for as many months as it did) and they would not cover the repair nor finish the safety recall, and as I type this, have not confirmed if they are even going to cover the tow back to my home(over an hour away) so that I can perform the brake line repairs myself. I find all of this extremely hard to believe as we purchased the car less than two years before the incident and the steel lines were inspected before we picked it up. I understand corrosion can cause failure like this in extreme situations over long periods of time, but I do not believe that it was not caused by their neglect. I am desperate for help at this moment.
Jul 26, 2022
LOSS OF ALL BRAKES DIAGNOSE CORRODED/RUSTED BRAKE PIPE AT CENTER LEFT OF VEHICLE
Mar 03, 2021
MY REAR BRAKE LINES HAVE CORRODED TO THE POINT THAT I LOST MY BRAKES. THE FLUID HAS LEAKED OUT. THE CAR IS NOT RUSTING OR SHOWING SIGNS OF RUST OR CORROSION. ONLY THE ACTUAL BRAKE LINES HAVE RUSTED. IT APPEARS TO BE A DEFECT IN MANUFACTURING. THE LINES SHOULD HAVE HAD A PROTECTIVE COATING OR BEEN COVERED IN THE EXPOSED AREA TO PREVENT EXCESSIVE CORROSION TO THE POINT THE BRAKE LINES RUSTED THRU AND THE VEHICLE LOST IT'S BRAKING ABILITY. THIS HAPPENED WHILE WAS IN STOP AND GO TRAFFIC SO LUCKILY NOBODY GOT HURT BUT IF I WAS AT A HIGH RATE OF SPEED I WOULD HAVE LOST MY BRAKING ABILITY AND IT COULD HAVE BEEN MUCH WORSE.
Oct 11, 2017
WHEEL SPEED SENSOR (L/F) FAILED ON HIGHWAY AT 50MPH. ALL BRAKES LOCKED UP AND CAR SKIDDED TO A HALT! LUCKILY NO TRAFFIC OR SOMEONE COULD HAVE BEEN KILLED! CAR HAD TO BE TOWED TO A LOCAL MB DEALER. MERCEDES IS AWARE OF THIS ISSUE ... THEY HAVE UPDATED THESE SENSORS BUT ARE NOT REPLACING THEM UNDER WARRANTY (AND OF COURSE THEY ARE GETTING ABOUT $450 PER SENSOR)! MAJOR SAFETY ISSUE! MERCEDES SHOULD RECALL AND REPLACE THESE SENSORS!
Jul 10, 2015
FUEL/PROPULSION SYSTEM
5 complaints
Fuel tank on driver side of vehicle is leaking. Heavy gas smell inside car and leakage around fuel tank. Took the vehicle in to mechanic today (04/13/23).
Apr 13, 2023
TL* THE CONTACT OWNS A 2009 MERCEDES-BENZ ML320. AFTER FUELING THE VEHICLE, THE CONTACT NOTICED THAT THE VEHICLE WAS LEAKING FUEL BADLY. THE FIRE DEPARTMENT REMOVED SOME OF THE FUEL BEFORE THE VEHICLE WAS TOWED. THE FAILURE RECURRED FOUR TIMES. THE VEHICLE WAS TOWED TO A DEALER WHERE IT WAS DIAGNOSED THAT THE FUEL SENDER NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED; HOWEVER, THE FAILURE RECURRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 58,000.
Mar 24, 2016
ENGINE LIGHT CODE RELATED TO DEFECTIVE HEATER ELEMENT IN BLUETEC FLUID TANK. MERCEDES STATES IT IS AN EMISSIONS SYSTEM BUT IS NOT COVERED UNDER EMISSIONS WARRANTY. NO CHANGE IN VEHICLE PERFORMANCE, 35,000 MILES.
Nov 04, 2015
WEEK OF JUNE 27TH, I STARTED TO NOTE GAS FUMES COMING FROM MY VEHICLE. GIVEN, I HAD RECENTLY FILLED UP ON GAS TANK, THOUGHT IT WAS DUE TO "BURN OFF"... ON JULY 2ND, TOOK MY VEHICLE IN FOR OIL CHANGE AND THEY NOTED THAT THEY COULD DETECT GAS FUMES COMING FROM UNDER MY VEHICLE AND ADVISED TO TAKE IT TO DEALERSHIP IN ASAP... SAME DAY, TOOK IT TO DEALERSHIP AND AFTER A FULL INSPECTION OF MY VEHICLE, THEY ADVISED ME THE FUEL SENDING UNIT WAS BRAKING DOWN AND NEEDED TO BE REPLACED. THEY ADVISED THIS WAS SO INCREDIBLY RARE AND SHOULD NOT HAVE OCCURRED. DRIVING MY VEHICLE WAS A HAZARD AND COULD HAVE EXPLODED. GIVEN THIS IS MY MAIN VEHICLE FOR ME AND MY SON, THIS IS VERY CONCERNING TO ME!!! AND NOTHING SHOULD BE BRAKING DOWN AT 70,000 MILES... MY EXTENDED WARRANTY DID NOT COVER IT AND IT COST ME $2000 TO HAVE IT REPAIRED. AGAIN, NO ONE CAN ADVISE HOW THIS OCCURRED BUT NO ONE I HAVE SPOKEN TO CAN GIVE ME A REASON BUT NOTHING SHOULD BE DETERIORATING ON A LUXURY VEHICLE.
Jul 09, 2015
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ ML350. AFTER REFUELING THE VEHICLE, FUEL FUMES EMITTED IN AND AROUND THE VEHICLE. THE VEHICLE ALSO STALLED AFTER THE FAILURE. THE VEHICLE WAS NOT TAKEN TO THE DEALER. THE FAILURE MILEAGE WAS UNKNOWN.
May 07, 2015
SERVICE BRAKES, HYDRAULIC
4 complaints
The contact owns a 2009 Mercedes-Benz ML350. The contact stated that when the vehicle was started, the brake sensor warning light was illuminated. The dealer was contacted; however, the vehicle was not repaired. The contact was concerned that the failure could cause someone to be injured in the event of a failure. The manufacturer was made aware of the failure and the contact was referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 230,000.
Jun 24, 2024
The contact owns a 2009 Mercedes-Benz ML550. The contact stated while driving at various speeds and depressing the brake pedal, the brake pedal went to the floorboard and seized. Additionally, the vehicle failed to respond. There was no warning light illuminated. The contact continuously depressed the brake pedal until the brake pedal raised off the floorboard. The contact received notification of NHTSA Campaign Number: 22V315000 (Service Brakes, Hydraulic) and the vehicle was taken to the dealer, where the recall repair was performed; however, the brake booster was not replaced. The contact stated that the failure had been recurring while driving. The manufacturer was notified of the failure and assisted in towing the vehicle to the dealer. The dealer informed the contact that a fee would be charged for a diagnostic test and repair. The vehicle was not diagnosed or repaired. The failure mileage was unknown.
Apr 05, 2024
The contact owns a 2009 Mercedes-Benz ML320. 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 contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.
Aug 04, 2022
I HAVE A 2009 MERCEDES ML 350. ABOUT A WEEK AGO, MY BREAK FLUID LIGHT CAME ON. I TOOK IT INTO THE DEALERSHIP, AND THEY TOPPED THE FLUID OFF. A FEW DAYS PASSED, AND THE LIGHT WENT ON AGAIN. I TOOK IT INTO THE DEALERSHIP, AND IT WAS VERIFIED THAT "THE PRESSURE DROPS AFTER SEVERAL MINUTES. (THEY) FOUND THE LINE INTO THE ABR PUMP WAS LEAKING. R&R PUMP TO INSPECT LINES AND FOUND METAL LINE DEFORMED AT FLARE". *TR
Mar 18, 2012
EXTERIOR LIGHTING
3 complaints
The contact owned a 2009 Mercedes-Benz ML350. The contact stated while driving 35 mph, she detected a smoke odor inside the vehicle and pulled over. The contact saw that there was smoke coming from the trunk before the vehicle caught on fire. The SRS and battery warning lights were illuminated. The fire department was able to extinguish the fire. A fire report was not filed. No medical attention was received. The vehicle was towed to a towing lot and deemed totaled by the insurance company. The dealer and another dealer Mercedes-Benz of Bedford (18122 Rockside Rd, Bedford, OH 44146) were made aware of the failure. The contact was informed that the Vin was not under recall. The contact attempted to contact the manufacturer but was unable to speak to a representative. The contact related the failure to NHTSA Campaign Number: 09V076000 (Exterior Lightning). The failure mileage was 85,000.
Jul 19, 2021
THIS COMPLAINT IS BEING MARKED FOR DELETION BECAUSE IT IS AN INADVERTENT DUPLICATE OF ODI# 11425551*DJR The contact owned a 2009 Mercedes-Benz ML 350. The contact stated while at the stop light, the warning message "SRX Malfunction, Service Required" appeared and the battery warning light illuminated. The contact stated as she smelled a burning odor, she veered to the side of the road and exited the vehicle. The contact noticed smoke coming out of the windows of the vehicle. The contact stated fire had started in the trunk of the vehicle and she was able to extinguish it with the assistance of the fire department. There were no injuries sustained. The vehicle was towed to a tow lot, where it was totaled. The dealer was made aware of the failure and informed the contact that the vehicle was not included in the recall for NHTSA Campaign Number: 09V076000 (EXTERIOR LIGHTING). The manufacturer was not made aware of the failure. The approximate failure mileage was 85,000.
Jul 19, 2021
PLEASE NOTE THAT ON THE ML350 WITH LED LIGHTS THERE SEEM TO BE A MAJOR ISSUE WITH LIGHT REPLACEMENTS. WHILE DRIVING MY CAR STATES THAT THE BRAKE LIGHT IS BROKEN. BROUGHT IT TO THE DEALER THEY STATE THAT THERE IS NO BULB REPLACEMENT. YOU HAVE TO REPLACE THE ENTIRE TAIL LAMP FOR 545.00 . I THINK THIS IS CRAZY JUST FOR A BLOWN BULB, MERCEDES DID NOT DESIGN THE LED TAIL LAMP BULB TO BE REPLACEABLE. I THINK THE MAKER IS AN ASS TO DESIGN THE TAIL LAMP THAT WAY. I THINK THIS UNFAIR PRACTICE AND HOPE SOMEONE INVESTIGATES. *TR
Aug 23, 2012
POWER TRAIN
3 complaints
VEHICLE IN MOTION ON FREEWAY, LOST POWER AND SEVERAL CARS RAN OFF THE ROAD TO AVOID MY VEHICLE AS IT SUDDENLY LOST POWER AND SLOWED DOWN WITHOUT WARNING. VEHICLE SAT AND COULD NOT BE DRIVEN FASTER THEN 25 MILES AS IT WAS STUCK IN LIMP MODE (UNABLE TO GET OUT OF FIRST GEAR). A CODE DISPLAYED SHOWING THE TRANSMISSION CONTROL MODULE HAD FAILED. AN INTERNET SEARCH FOUND THOUSANDS OF OTHER PEOPLE HAVE HAD THE SAME PROBLEM AND THE TCM ON MERCEDES ARE KNOWN TO ALL GO FAULTY AFTER WARRANTY HAS EXPIRED. MBENZ IS EXTORTING MONEY OUT OF PEOPLE FOR A PRODUCT THAT CLEARLY NEEDS TO BE RECALLED. THEY QUOTE 6 HOURS TO REMOVE AND REPLACE THIS COMPONANT BUT THE ACTUAL TIME TO REMOVE AND REPLACE IS 1.5 HRS PLUS 1 HOUR FOR REPROGRAMMING THE TCM. THIS IS FRAUDULENT AND UNETHICAL AND THIS COMPANY SHOULD BE DEALT WITH ACCORDING TO THE FAIR TRADE LAWS THAT PROTECT CONSUMERS.
Apr 11, 2019
AS I WAS GETTING READY TO SHIFT THE GEAR LEVER TO DRIVE THE LEVER SHEARED OFF AND I WAS UNABLE TO HAVE CONTROL OF SHIFTING THE TRANSMISSION TO ANY OTHER POSITION SUCH AS (P/N/R). I STOP THE CAR AS A SAFETY CONCERN AND LOOKED AT THE BROKEN GEAR SHIFT LEVER AND IT APPEAR TO BE SHEARED OFF THE WEAKEST AREA OF THE LEVER OR WHERE THE SHIFTING LOAD TAKES PLACE. CAR STILL UNDER WARRANTY BUT DEALER REFUSED TO FIX IT UNDER WARRANTY WITH THE EXCUSE EXCESSIVE FORCE APPLIED TO SHIFT WHICH CAUSE THE LEVER TO BRAKE. I AM SURE THE IS A MATERIAL DEFECTS AND FATIGUE. I HAVE THE BAD PART ON HAND AND WHICH IF I CAN SEND IT FOR LAB TEST TO FIND THE CAUSE OF THE DAMAGE AND MAY BE THIS WILL ALERT FOR A RECALL. *TR
Apr 09, 2014
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ ML320. THE CONTACT STATED THAT WHILE GOING APPROXIMATELY 5 MPH, THE VEHICLE HESITATED TO SHIFT INTO GEAR. THE ENGINE WOULD REV AND THE VEHICLE WOULD NOT RESPOND. THE CONTACT THEN SHIFTED INTO GEAR AND THE VEHICLE ACCELERATED RAPIDLY. THE VEHICLE WAS TAKEN TO THE DEALER FOR INSPECTION AND THE CONTACT WAS INFORMED THAT THE FAILURE WAS UNABLE TO BE DETERMINED. THE FAILURE RECURRED SEVERAL TIMES LATER AND THE CONTACT TOOK THE VEHICLE BACK TO THE DEALER FOR ANOTHER INSPECTION WHERE THEY INFORMED THE CONTACT THAT THE TRANSMISSION MODULE SOFTWARE NEEDED TO BE UPDATED. THE VEHICLE WAS REPAIRED BUT THE FAILURE RECURRED. THE MANUFACTURER WAS CONTACTED BUT THE CONTACT HAD NOT RECEIVED A RESPONSE. THE FAILURE MILEAGE WAS 45,000.
Jun 15, 2012
STRUCTURE
3 complaints
THE AUTOMATIC REAR HATCH CLOSED BUT DID NOT LOCK. DURING ACCELERATION THE REAR HATCH STARTED TO OPEN. ANY FURTHER ATTEMPTS TO LOCK THE HATCH WERE UNSUCCESSFUL AND THE REAR HATCH COULD NOT BE LOCKED. *TR
Oct 09, 2014
IN OCTOBER 2012, I OPENED THE REAR HATCH OF MY 2009 MERCEDES BENZ ML350 AND IT WOULD NOT CLOSE. I CONTINUED TO PUSH THE BUTTON ON THE HATCH DOOR, ON THE DRIVER SIDE DOOR AND ON THE KEY IN AN ATTEMPT TO CLOSE THE HATCH DOOR. AFTER ABOUT 20 MINUTES, I WAS SUCCESSFULLY ABLE TO CLOSE IT. THREE WEEKS AGO, THE REAR HATCH MALFUNCTIONED AGAIN, HOWEVER, THIS TIME IT WOULD NOT OPEN. I TRIED THE BUTTON ON THE OUTSIDE OF THE HATCH, ON THE INSIDE ON THE DRIVER SIDE DOOR AND ON THE KEY IN AN ATTEMPT TO GET THE HATCH TO OPEN. I LEFT FOR A BUSINESS TRIP THE NEXT DAY, AND WHEN I RETURNED MY CAR WOULD NOT START. I HAD TO CALL ROAD SIDE ASSISTANCE TO GET A JUMP OF THE BATTERY. WHEN I TOOK THE CAR TO THE MERCEDES DEALER, THEY INFORMED ME THAT THE BATTERY WAS COMPLETELY DEAD. I TOLD THEM THAT I HAD A SUSPICION THAT THE DEAD BATTERY WAS CAUSED BY A MALFUNCTION OF THE ELECTRICAL SYSTEM INVOLVING THE REAR HATCH. THE SERVICE ADVISOR SAID THAT HE HAD NEVER HEARD OF THE REAR HATCH CAUSING A PROBLEM WITH THE BATTERY. WHILE DOING SOME RESEARCH ONLINE, I DISCOVERED THAT THERE ARE A NUMBER OF PEOPLE WHO HAVE HAD THE SAME PROBLEM WITH THE REAR HATCH EITHER FAILING TO OPEN OR FAILING TO CLOSE AND AS A RESULT THE BATTERY DRAINS. FURTHER EVIDENCE THAT THE PROBLEM CAUSES THE BATTERY TO DRAIN IS EVIDENCED BY THE FACT THAT THE BULB THAT ILLUMINATES THE LICENSE PLATE IN THE REAR HATCH DOOR WENT OUT AS WELL. APPARENTLY THE BULB CONTINUED TO STAY ON BECAUSE THE SENSOR IN THE DOOR WAS ACTIVATED, WHICH WOULD ONLY HAPPEN WHEN THE HATCH DOOR IS OPEN. FAILURE OF THE HATCH DOOR TO OPEN, MEANS THAT THE ELECTRICAL SYSTEM TREATED THE HATCH DOOR AS IF IT WAS AJAR EVEN THOUGH THE LOCKING MECHANISM WAS MALFUNCTIONING NOT ALLOWING THE DOOR TO OPEN. SO THE ELECTRICAL SYSTEM CONTINUOUSLY KEPT ATTEMPTING TO LATCH THE DOOR WHICH IS WHAT CAUSED THE BATTERY TO DRAIN. *TR
Jul 21, 2013
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ ML350. THE CONTACT STATED THAT THE VEHICLE HATCHBACK DOOR DID NOT COME EQUIPPED WITH A SENSOR THAT WOULD PREVENT THE DOOR FROM CLOSING IF A PERSON WAS IN THE DOOR PATH. THE VEHICLE WAS TAKEN TO THE DEALER WHO ADVISED THAT THE VEHICLE WAS NOT DESIGNED WITH A SENSOR AND THAT WERE UNABLE TO ALTER THE DESIGN OF THE VEHICLE. THE MANUFACTURER WAS NOT CONTACTED AND THE VEHICLE WAS NOT REPAIRED. THE FAILURE AND CURRENT MILEAGE WAS 21,000.
Apr 15, 2011
FUEL SYSTEM, GASOLINE
3 complaints
FUEL TANK LEAK. GAS SMELL INSIDE OF VEHICLE WAS SO BAD THAT IT MADE ME SICK. MERCEDES DEALER FIXED IT UNDER WARRANTY: CHANGED THE SEALS ON THE FUEL TANK. *TR
Mar 03, 2012
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ ML320. THE CONTACT STATED THAT FUEL BEGAN TO LEAK FROM UNDER THE VEHICLE WHILE REFUELING. THE CONTACT ALSO STATED THAT THE VEHICLE HAD ITS FUEL FILTER REPLACED BY AN AUTHORIZED DEALER PRIOR TO REFUELING. THE VEHICLE WAS TOWED BACK TO THE DEALER AND A FUEL GASKET WAS REPLACED. THE FAILURE RECURRED APPROXIMATELY TWO MONTHS LATER. THE VEHICLE WAS AGAIN TOWED TO THE DEALER TO BE REPAIRED. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 30,000.
Feb 03, 2012
FUEL PUMP FAILURE. THE CAR WAS TOWED TO THE DEALER. THIS IS THE SECOND FUEL PUMP FAILURE IN THE LESS THAN ONE YEAR. DURING THE 2 YEARS OF OWNERSHIP, THE CAR HAS HAD SEVERAL PROBLEMS WITH THE ENGINE STARTING, REQUIRING MULTIPLE TRIPS TO THE DEALER FOR SERVICE. ON MANY OCCASIONS THE CAUSE WAS NOT DETERMINED AND THE VEHICLE WAS RETURNED WITH THE PROBLEM UNRESOLVED. THE VEHICLE WAS PURCHASED NEW AND SERVICED BY THE DEALER,
Jul 30, 2011
ELECTRICAL SYSTEM,STRUCTURE
2 complaints
These models were recalled on March 9, 2009 NHTSA CAMPAIGN 09v076000. my vin number apparently did not fall within the selected vin numbers. However my auto even though it is the same year as the recall has this same exact defect and condition and is deemed to be a fire hazard. what are my options.
Apr 14, 2025
MY MERCEDES ML350 WAS PARKED ON A RESIDENTIAL STREET. FLAMES BEGAN SHOOTING OUT OF THE RIGHT REAR TAILLIGHT. BY THE TIME THAT WE SAW IT AND EXTINGUISHED IT THE ENTIRE BACK OF THE CAR WAS ON FIRE AND THE CAR TOTALED.(MATTER OF MINUTES) THE FIRE DEPARTMENT WAS CALLED. I HAVE PICTURES SHOWING THAT FIRE CAME FROM THE ELECTRICAL PANEL IN THE RIGHT REAR OF THE CAR. I HAD NO PREVIOUS INDICATION OTHER THAN A HALF AN HOUR EARLIER THE LEFT REAR TAILLIGHT WAS STUCK ON. ALSO TWICE IN THE PAST YEAR I CALLED THE DEALER TO SAY THAT I THOUGHT THAT THERE WAS SOME PROBLEM WITH THE CAR BECAUSE THE AIR CONDITIONER WOULD RANDOMLY STOP COOLING. WHEN I TOOK IT IN THEY COULD NEVER FIND THE PROBLEM - IT WAS INTERMITTENT. SINCE THE FIRE MERCEDES CUSTOMER SERVICE HAS BEEN TERRIBLE. I ASKED THEM TO REPLACE MY LOST BELONGINGS NOT COVERED BY INSURANCE (THIS WASN'T MUCH) AND IT APPEARS THAT ALL THEY WANTED TO DO WAS GET RID OF ME AND SWEEP THIS ISSUE UNDER THE RUG. CUSTOMER SERVICE MERCEDES OFFERED TO GIVE ME $4,000 OFF THE BEST DEAL THAT I COULD NEGOTIATE OFF A NEW MERCEDES AT MY LOCAL MERCEDES DEALERSHIP IF I WAS TOO BUY A NEW ONE - THEY SEVERAL TIMES GAVE EXTENDED ME THIS OFFER - WHEN I WENT TO THE DEALERSHIP AND GOT A PRICE, CUSTOMER SERVICE MERCEDES TOOK BACK THEIR OFFER. WHEN I ASKED TO SPEAK TO A SUPERVISOR THE ATTENDANT HUNG UP ON ME. THE DEALERSHIP WAS GOOD TO DEAL WITH - CUSTOMER SERVICE WAS TERRIBLE TERRIBLE! I'VE CALLED THREE TIMES SINCE AND THEY WILL NOT PUT A SUPERVISOR ON THE PHONE. THERE IS A PROBLEM WITH THIS CAR - IT SHOULD DEFINITELY BE LOOKED INTO SO THAT IT DOESN'T HAPPEN TO OTHERS. I'M VERY GRATEFUL THAT THE FIRE DIDN'T START WHILE THE CAR WAS PARKED IN MY GARAGE OR IT COULD HAVE BEEN A CATASTROPHE. I HAVE PICTURES IF ANYONE CARES TO SEE PROOF OF WHAT I'M SAYING. *TR
Jan 02, 2014
UNKNOWN OR OTHER
2 complaints
STRONG GAS ODOR, CAR WAS UNSAFE TO DRIVE COULD POTENTIALLY CAUSE FIRE. THE WAS IN MOTION, THE ODOR KEPT GETTING STRONGER AS I DROVE THE CAR. ONCE THE CAR WAS STATIONARY, THE ORDER STARTED TO GO AWAY. THE ISSUE WAS SPECIALLY STRONG WHEN THE AC WAS TURNED ON. IT WAS HARD TO BREATHE WHEN RIDING IN THE CAR. THE ISSUE WAS WHEN EVER THE CAR WAS IN MOTION IN CITY STREET AND IN THE HIGHWAY.
Aug 07, 2020
DEALER INSTALLED FLEX-N-GATE TRAILER HITCH, NOT CURRENTLY INCLUDED IN RECALL CAMPAIGN 08V242000. HAVE EXPERIENCED IDENTICAL WELD FAILURE, AS DESCRIBED IN RECALL INFORMATION. WOULD LIKE TO REQUEST EXPANSION OF RECALL TO INCLUDE 2009 MODELS.
Sep 23, 2017
TIRES
2 complaints
TIRES ARE NEW 3500 MILES. NORMAL DRIVING AT 40 MPH LOUD NOISE COMING FROM TIRE AND BLEW OUT. THE STEEL BELT WAS FAULTY. TWO DAYS LATER LOUD NOISE COMING FROM ANOTHER NEW TIRE TIRE OUT OF ROUND DUE TO STEEL BELT FAILURE. NO ROAD HAZARD SO TIRE DEALER SAID EVEN THOUGH THEY ARE NEW IT WILL BE ANOTHER 880.00. THE TIRES CLEARLY ARE FAULTY AND WILL CAUSE AN ACCIDENT. DUNLOP 255/50R19 ALL 4 BOUGHT AND INSTALLED 2 FAILED 2 DAYS APART. VERY DANGEROUS BLOWOUT NO INJURIES. THESE TIRES ARE NOT RIGHT AND SHOULD BE COVERED UNDER A RECALL. I HAVE BEEN IN CAR BUSINESS FOR 45 YEARS AND KNOW WHAT THIS IS. NO RESULTS AND NEED CLOSURE QUICKLY !!
Dec 17, 2016
IN FEBRUARY OF 2012 WE HAD A TIRE FAILURE-TREAD SEPARATION. THE TIRES WE WERE SOLD AS 'RUN FLAT' WERE IN FACT MOEXTENDED BY BRIGDESTONE. THIS TIRE HAS A VERY LIMITED RUN LOW ABILITY THAT ALLOWS 18-30 MILES AT 30 MPH AND 10 PSI. WE WERE TOLD WE HAD RUN FLATS THAT ALLOWED OPERATION AT 50MPH FOR 50 MILES AT ZERO PSI. MERCEDES AND BRIDGESTONE DENIED ANY LIABILITY. THIS FRAUD WILL PUT SOMEONE ELSE IN DANGER AND THE PUBLIC NEEDS TO BE WARNED. WE HAVE SINCE REPLACED PSEUDO RUN FLATS W REAL RUN FLATS AND WILL DO NO FURTHER BUSINESS WITH MERCEDES BENZ. *TR
Sep 08, 2012
POWER TRAIN,ENGINE
2 complaints
ENGINE COOLER SEAL LEAKING MASSIVELY AND LEAKING OIL IN TURBO.
Feb 05, 2016
ML320 BLUETEC, RANDOMLY LOSES POWER. THE POWER WILL BE RESTORED ONCE THE CAR IS TURNED OFF AND ON AGAIN. CAR HAS BEEN TO THE DEALER 7 TIMES FOR REPAIR OF THIS ONE ISSUE, INCLUDING TWICE IN A STATE WITH LIMITED POWER. DEALER HAS DONE MULTIPLE SOFTWARE UPDATES, TURBO REPLACEMENT, EXHAUST VALVES REPLACEMENT AND THE ISSUE IS STILL PRESENT. ON ONE OF THE LAST OCCASIONS THIS HAPPENED, THE CAR LOST POWER WHEN TRYING TO MERGE ON TO THE HWY. THIS ALMOST RESULTED IN ME BEING REAR ENDED BY A BIG RIG. LUCKILY I WAS ABLE TO PULL TO THE SHOULDER BEFORE I WAS REAR ENDED. THIS IS SERIOUS SAFETY CONCERN THAT NEEDS TO BE ADDRESSED AND RECTIFIED. AS OF 02/17/2014 THIS ISSUE HAS NOT BEEN CORRECTED. *TR
Feb 20, 2014
ENGINE
2 complaints
OIL LEAKING FROM COIL COOLER, 1-2OZ OVERNIGHT ON GROUND + OIL LOSS AT SPEED.
Sep 13, 2015
WHILE MY WIFE WAS DRIVING OUR 2009 MERCEDES BENZ ML63, AT APPROX 65 MPH, ON THE 101 LOOP IN SCOTTSDALE AZ, SHE EXPERIENCED COMPLETE ENGINE FAILURE. THE ENGINE COMPLETELY SHUT DOWN ON HER. SHE LUCKILY WAS ABLE TO COAST OVER TWO LANES TO HER RIGHT TO AN EXIT RAMP. THE CAR CAME TO REST AT THE BOTTOM OF THE RAMP W/ NO ENGINE POWER WHATSOEVER. MY WIFE WAS PETRIFIED. THE CAR WAS TOWED FIRST TO AAA AND THEN TO SCHUMACHER EUROPEAN, LTD (A MERCEDES-BENZ DEALERSHIP) IN PHOENIX, AZ. ACCORDING TO SCHUMACHER EUROPEAN, LTD THE CAUSE OF THE ENGINE FAILURE WAS A BLOWN HEAD GASKET DUE TO BROKEN HEAD BOLTS. THE REPAIR ESTIMATE WE RECEIVED FROM SCHUMACHER WAS BETWEEN $6,000 - $25,000 DEPENDING ON THE AMOUNT OF DAMAGE DONE TO THE ENGINE. MERCEDES-BENZ USA HAS HAD A KNOWN ISSUE W/ DEFECTIVE HEAD BOLTS. THEY ISSUED TECHNICAL SERVICE BULLETINS BACK IN 2011 ADDRESSING THE ISSUE. ALSO IN 2011 A CLASS ACTION LAWSUIT WAS BROUGHT AGAINST MERCEDES-BENZ USA CLAIMING THEY WERE AWARE OF FAULTY ENGINE DEFECTS, AND WERE DOING NOTHING ABOUT THEM TO PROTECT CONSUMERS. MY WIFE & I WERE COMPLETELY UNAWARE THAT OUR SUV HAD AN ISSUE W/ DEFECTIVE HEAD BOLTS. AND WHEN THESE DEFECTIVE HEAD BOLTS BREAK, NOT ONLY CAN THEY CAUSE CATASTROPHIC ENGINE DAMAGE BUT THEY CAN CAUSE A MAJOR PUBLIC SAFETY PROBLEM. WE THOUGHT WE OWNED A SAFE CAR. BUT THE TRUTH IS OUR SAFETY, AS WELL AS THE SAFETY OF OUR DAUGHTER (NOW 5 YRS OLD), HAS BEEN IN JEOPARDY SINCE WE STARTED DRIVING THIS SUV. HOW MANY OTHER MERCEDES-BENZ DRIVERS ARE DRIVING AROUND THIS COUNTRY IN CARS & SUV'S THEY THINK ARE SAFE BUT ACTUALLY HAVE DEFECTIVE ENGINES THAT CAN FAIL AT ANY TIME? ALSO TO NOTE: MERCEDES-BENZ USA HAS AN F RATING AT THE BBB.
Aug 25, 2015
ENGINE AND ENGINE COOLING,FUEL SYSTEM, DIESEL
2 complaints
CHECK ENGINE LIGHT WARNING WITH CODE #20BE1B. REPAIR INDICATES NEED OF DIESEL EXHAUST FLUID (DEF) HEATER REPAIR KIT. DIESEL EXHAUST FLUID SYSTEM IS PART OF EMISSIONS SYSTEM. MB DEALERSHIP SAYS NO WARRANTY FOR REPAIR. INTERNET RESEARCH WIDESPREAD PROBLEM WITH DEF SYSTEM AROUND 50,000 MILES. *TR
Jan 12, 2015
LETTER FROM REGARDING NUMEROUS ISSUES AND TROUBLES HE HAS FACED SINCE THE PURCHASE OF HIS MERCEDES-BENZ VEHICLE, A 2009 ML320 BLUE TEC DIESEL ENGINE SUV; SEEKING ASSISTANCE-HE WOULD LIKE ACKNOWLEDGEMENT OF RECEIPT OF THIS COMPLAINT *TGW THE CONSUMER STATED THE FIRST PROBLEM HE ENCOUNTERED WITH THE VEHICLE WAS IN MAY OF 2010, WITHIN LESS THAN A YEAR OF PURCHASE, WHILE DRIVING, THE GAS GAUGE ALL OF A SUDDEN WENT FROM A HALF TANK OF FUEL, TO READING EMPTY, WHERE AT THAT POINT THE FUEL LIGHT ILLUMINATED. EVEN THOUGH HE KNEW THE TANK WAS NOT EMPTY, HE STOPPED TO THE GAS STATION AND RE-FUELED. HOWEVER, THE TANK CONTINUED TO READ EMPTY. ABOUT AN HOUR LATER, THE NEEDLE MOVED TO THE FULL POSITION. FOUR TO FIVE MONTHS LATER, THE CHECK ENGINE LIGHT ILLUMINATED, ALONG WITH A BLUE WARNING LIGHT. THE VEHICLE WAS TAKEN TO THE DEALER, BUT NOTHING WAS FOUND TO BE WRONG. ON ANOTHER OCCASION, THE VEHICLE LOST ACCELERATION AS THE CONSUMER WAS ATTEMPTING TO GO UPHILL ON AN INCLINE. THE VEHICLE STARTED TO SLOW DOWN IN SPEED. EVEN TRYING TO PUMP THE ACCELERATOR PEDAL DID NOT HELP AND EVENTUALLY THE VEHICLE STARTED TO STALL. THE CONSUMER EXPERIENCED THE SAME FAILURE, SEVERAL MORE TIMES AFTER THAT. THE CHECK ENGINE LIGHT ILLUMINATED SEVERAL OTHER TIMES AS WELL. THE DEALER CHANGED THE ENTIRE COMPUTER MODULE. SOON AFTER, THE TIRE PRESSURE LIGHT ILLUMINATED. ONCE THE TIRES WERE CHECKED, THE LIGHT NO LONGER APPEARED.
Oct 18, 2012
FUEL SYSTEM, DIESEL
2 complaints
VEHICLE WOULD NOT START AFTER BEING PARKED FOR APPROXIMATELY 15 MINUTES. TOWED TO LOCAL MB DEALER, DIAGNOSTICS INDICATED FUEL PUMP FAILURE. FUEL PUMP REPLACED. APPROXIMATE MILEAGE 64000. VEHICLE FAILED TO START ON 4 OTHER OCCASIONS OVER COURSE OF NEXT 8 MONTHS. TWICE THE VEHICLE STARTED THE NEXT DAY. ONCE THE FUEL PUMP RELAY WAS REPLACED. VEHICLE FAILED TO START AGAIN 10/10/14 AND WAS TOWED TO AREA MB DEALER. DIAGNOSTICS INDICATED FUEL PUMP FAILURE AGAIN. FUEL PUMP WAS REPLACED AGAIN! APPROXIMATE MILEAGE 145000. WAITING FOR IT TO LEAVE ME STRANDED AGAIN. *TR
Dec 19, 2014
I HAVE A 2009 MERCEDES BENZ ML320 BLUETEC THAT HAS ISSUES WITH STARTING THE ENGINE WHEN WARM. THE CAR WILL CRANK BUT NOT START. *TR
Sep 01, 2010
STEERING
1 complaint
The contact owns a 2009 Mercedes-Benz ML350. The contact stated upon starting the vehicle, the vehicle lost power steering functionality, and the steering wheel locked. The battery warning light was illuminated. The dealer was contacted and informed the contact that the VIN was not included under recall. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 90,000.
Sep 10, 2025
SERVICE BRAKES,SERVICE BRAKES, HYDRAULIC
1 complaint
2009 MERCEDES BENZ ML350. CONSUMER WRITES IN REGARD TO NHTSA SAFETY RECALL 22V-315.
Oct 27, 2022
ELECTRICAL SYSTEM,UNKNOWN OR OTHER
1 complaint
Driver side front door and driver side back door do not unlock or lock. You have to Manually unlock and lock.
Sep 07, 2022
SUSPENSION,STRUCTURE
1 complaint
Rear coil springs rusted through and broke resulting in greatly diminished vehicle stability, especially in emergency maneuvers. Have had numerous repair facilities evaluate, including the dealer. All have refused to replace rear springs due to safety risk
Jun 09, 2022
EXTERIOR LIGHTING,SERVICE BRAKES
1 complaint
TL* THE CONTACT OWNS A 2009 MERCEDES-BENZ ML350. THE CONTACT STATED WHILE DRIVING AT AN UNKNOW SPEED, THE EXTERIOR LIGHT WARNING MESSAGE WAS DISPLAYED ON THE INSTRUMENT PANEL. THE CONTACT STATED THAT THE BRAKE LIGHT BULB WAS REPLACED HOWEVER, THE FAILURE RECURRED. THE VEHICLE WAS TAKEN TO PARK PLACE MOTORCARS MERCEDES-BENZ DALLAS (113 LEMMON AVE, DALLAS, TX 75209; (214) 736-5753) WHERE THE CONTACT WAS INFORMED THAT THE REAR PASSENGER'S SIDE BRAKE LIGHT HARNESS NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED HOWEVER, THE FAILURE RECURRED ON THE DRIVER'S SIDE AND THE CONTACT WAS INFORMED THAT THE DRIVER'S SIDE REAR BRAKE LIGHT WIRING HARNESS NEEDED TO BE REPLACED. THE VEHICLE WAS NOT YET REPAIRED. THE MANUFACTURER WAS INFORMED OF THE FAILURE. THE FAILURE MILEAGE WAS APPROXIMATELY 40,000.
Nov 19, 2020
ELECTRICAL SYSTEM,STRUCTURE,ENGINE
1 complaint
OUR VEHICLE CAUGHT FIRE. MY WIFE AND I HAD JUST GOTTEN OFF OF THE INTERSTATE WHEN WE STARTED TO SMELL AN ODD SMELL. WE PULLED INTO A HOTEL PARKING LOT WHERE WE STARTED TO SEE SMOKE COMING FROM THE FRONT OF THE VEHICLE. I STOPPED THE VEHICLE IN A HOTEL DRIVEWAY, PUT THE VEHICLE IN PARK. WE GOT OUT OF THE VEHICLE AND SAW FLAMES UNDERNEATH THE VEHICLE. WE CALLED 911 AND HOTEL STAFF TRIED TO EXTINGUISH THE FIRE BUT IT CONTINUED TO GROW. THE FIRE DEPT. ARRIVED AND PUT OUT THE FIRE. PHOTOS ARE ATTACHED.
Feb 09, 2020
ELECTRICAL SYSTEM,EXTERIOR LIGHTING,AIR BAGS
1 complaint
TAKATA RECALL , BRAKE LIGHT HARNESS
Jan 21, 2018
ELECTRICAL SYSTEM,AIR BAGS,WHEELS
1 complaint
SINCE I GOT MY CAR ML 350 2009 HAVE TO MANY PROBLEMS LIKE CHANGING TIRES EVERY 3 MOUNTHS PLUS ALIGNMENT NEVER DONE CORRECTLY , I HAVE CONTACTED FROM SOMEHOW TO CHANGE MY AIRBAGS AND AFTER I COMPLETED ALL INFORMATION BUT THEY NEVER GOT BACK TO ME . PLUS I HAVE SERIES ELCTRICAL ISSUE WITH THE WINDOW ,BACKUP CAMERA,DOOR PANELS AND CROSS CONTROL IS NOT WORKING AT ALL WHEN I USE IT FOR A LONG TRIP OR DRIVE ON THE HIGHWAY SPECIALS WHEN IS THERE FOGG AT THE STREET . AND THE LIGHT I CHANGED IT TO MANY TIME BUT STILL NEVER GOT STRONG ENOUGH TO SEE IN THE FRONT OF ME WHILE I AM DRIVING . I WISHED I NEVER HAVE MERCEDES AND I WILL NEVER DO IT AGAIN.
Nov 18, 2017
STRUCTURE,UNKNOWN OR OTHER
1 complaint
CPSC:2009 MERCEDES BENZ ML320 WITH APPROVED, DEALER INSTALLED TRAILER TOW HITCH PURCHASED USED ON 9/05/2017. RATED CAPACITY IS 7200 LBS. ON MONDAY, 9/11/2017, ATTACHED AN 2005 AIRSTREAM TRAILER, WEIGHING 5240 LBS. , MOVING OUT OF DRIVEWAY, HEARD A LOUD "POP" SOUND. .ON 9/22/2017, AND CONFIRMED AS FAULTY, DUE TO LACK OF PENETRATION AT THE POINT OF WELDS. *BF...UPDATED 11/14/17 *BF UPDATED 10/16/2017*JS UPDATED 7/27/18*JB
Oct 12, 2017
ELECTRICAL SYSTEM,SEATS
1 complaint
TL* THE CONTACT OWNED A 2009 MERCEDES-BENZ ML350. WHILE DRIVING, A BURNING RUBBER ODOR AND SMOKE WERE PRESENT UNDER THE FRONT PASSENGER SEAT. THE DRIVER EXITED THE VEHICLE AND, WITHIN MOMENTS, FLAMES COMPLETELY ENGULFED THE VEHICLE. THE FIRE DEPARTMENT EXTINGUISHED THE FIRE. A POLICE REPORT WAS FILED AND THERE WERE NO INJURIES. THE VEHICLE WAS DESTROYED. THE CAUSE OF THE FAILURE WAS NOT DETERMINED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE VIN WAS NOT AVAILABLE. THE FAILURE MILEAGE WAS 31,000.
Dec 23, 2016
ELECTRICAL SYSTEM,SEAT BELTS
1 complaint
2 ISSUES: RIGHT SIDE REAR SEAT BELT WILL NOT RETRACT. SECOND; AFTER A WEEK IN THE DEALERSHIP TO FIX AN A/C UNIT THAT CUTS OUT REPEATEDLY, AND THE ASSURANCES THAT THE NEW HARNESS THEY INSTALLED WOULD FIX THE PROBLEM, IT HASN'T. EVEN THOUGH THE OUTSIDE TEMPS ARE NOT INTO TRIPLE DIGITS, IT WILL STOP COOLING AND SLOWLY THE AIR TEMP RISES. I THOUGHT THAT BEING IN SLOW TRAFFIC WAS THE REASON, BUT ON THE OPEN ROAD AND AN OAT OF 74, IT DID IT AGSIN.
Jun 13, 2016
SUSPENSION
1 complaint
LOUD NOISE FROM RIGHT FRONT AS THE VEHICLE WAS DRIVEN ON CITY STREET. JERK WAS FELT INSIDE PASSENGER COMPARTMENT.
May 13, 2016
ENGINE AND ENGINE COOLING,VISIBILITY,LATCHES/LOCKS/LINKAGES,ENGINE
1 complaint
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ ML320. WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE RESTARTED AFTER SEVERAL ATTEMPTS. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHO STATED THAT THE CAMSHAFT POSITION SENSOR FAILED AND NEEDED TO BE REPLACED. THE VEHICLE WAS REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 60,000. UPDATED 4/30/15*CN THE CONSUMER ALSO STATED THE GLOW PLUG CONTROL UNIT, HEAT ELEMENT AND DOOR LOCK FAILED. UPDATED 05/07/15*JB
Feb 17, 2015
VEHICLE SPEED CONTROL,FUEL/PROPULSION SYSTEM
1 complaint
AUTO WAS IN FORWARD AN AT COMPLETE STOP AND DRIVER PLACED IN PARK BUT LEFT ENGINE RUNNING AND EXITED THE CAR. CAR WENT INTO REVERSE AND STARTED TO ACCELERATE. DRIVER WAS KNOCKED TO THE GROUND AND RUN OVER BY CAR. CAR WAS STOPPED WHEN IT RAN INTO BUILDING STRUCTURE. *TR
Jan 21, 2015
ELECTRICAL SYSTEM,EXTERIOR LIGHTING
1 complaint
CLEAR HEADLIGHT LENS COVER GETS WET ON INSIDE EVEN THOUGH THERE HAS BEEN NO RAIN CAUSING LIGHT FROM HEADLAMP TO BE DIFFUSED AND RESTRICTING REACH OF BEAM. MANUFACTURER SAYS LEAVE HEADLIGHT ON DISSIPATE MOISTURE, HOWEVER SEEMS UNSAFE WHILE MOISTURE PRESENT. THE DEALER REFUSED TO CONTACT MERCEDES BENZ. *TR
Aug 08, 2014
FUEL SYSTEM, DIESEL,POWER TRAIN,ENGINE
1 complaint
THIS CAR SHOULD QUALIFY AS A LEMON. WE SPENT OVER $65K ON IT NEW IN JANUARY OF 2009 AND IT HAS EASILY COSTS US $65K TO KEEP IT RUNNING SINCE. SOMETHING SIGNIFICANT BREAKS ON IT EVERY 60 DAYS SINCE OWNING IT. THE TURBO WENT OUT MOST RECENTLY AFTER A BAD OIL SEAL LET OIL INTO IT. $6500! THE CAR MAY HAVE SADLY BEEN CURSED SINCE DAY ONE. OUR SALES PERSON AT MERCEDES BENZ OF SF DIED RIGHT AFTER WE BOUGHT IT. THINGS STARTED TO BREAK IMMEDIATELY AFTER. PEOPLE RAN INTO IT, ETC. IT HAS BEEN THE WORST CAR OWNER EXPERIENCE IN MY LIFE. *TR
Jan 22, 2014
TRAILER HITCHES
1 complaint
TL* THE CONTACT OWNS A 2009 MERCEDES ML 320. THE CONTACT STATED THAT THE TRAILER HITCH FRACTURED AND DETACHED FROM THE VEHICLE AT THE SEAMS WHILE GOING THROUGH A CAR WASH. THE VEHICLE WAS TAKEN TO THE DEALER AND THE CONTACT WAS ADVISED THAT THE FAILURE WAS CAUSED BY RUST OF THE HITCH. THE DEALER RECOMMENDED THAT THE CONTACT USE A DIFFERENT AND LARGER VEHICLE TO HAUL A TRAILER. THE VEHICLE WAS LEFT WITH THE DEALER FOR REPAIRS. THE CONTACT WAS CONCERNED BECAUSE HE WAS ADHERING TO THE HAILING SPECIFICATIONS LISTED FOR HIS YEAR, MAKE AND MODEL. THE CONTACT STATED REFERENCED NHTSA CAMPAIGN ID NUMBER: 08V242000 (TRAILER HITCHES). THE FAILURE AND CURRENT MILEAGES WERE 38,000.
Aug 09, 2011
ENGINE AND ENGINE COOLING
1 complaint
THE SUV SLOWS AND/OR STALLS SUDDENLY AT DIFFERENT SPEEDS. STARTED AROUND 8,000 ORIGINAL MILES ON ODOMETER. IT IS A 2009 ML 320 BLUETEC. OCCURS UNEXPECTEDLY FOR FEW SECONDS RANDOMLY. *TR
Oct 04, 2010
Frequently Asked Questions
How many problems does the 2009 MERCEDES-BENZ ML-Class have?
The 2009 MERCEDES-BENZ ML-Class currently has 127 owner-reported complaints according to NHTSA database. These complaints are organized by component to help identify common issues.
What are the most common problems with 2009 MERCEDES-BENZ ML-Class?
The most common problems reported for the 2009 MERCEDES-BENZ ML-Class are organized by component above. Each component section shows owner-reported issues, crash reports, and fire incidents to help identify patterns and problem areas.
Where does this 2009 MERCEDES-BENZ ML-Class problem data come from?
All problem and complaint data for the 2009 MERCEDES-BENZ ML-Class comes directly from the National Highway Traffic Safety Administration (NHTSA) database. These are real complaints submitted by actual vehicle owners.
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