Total Complaints
104 filings
MERCEDES-BENZ ML350 · model year
104 NHTSA complaints, 2 crash reports for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2009MERCEDES-BENZML350 carries 104 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 2 crashes, 8 fires, 4 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2009 ML350 is air bags with 40 filings, followed by seat belts (18) and electrical system (15). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 15 investigation files overlapping the 2009 ML350. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
104 filings
Crashes Reported
2 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| AIR BAGS | 40 |
| SEAT BELTS | 18 |
| ELECTRICAL SYSTEM | 15 |
| EXTERIOR LIGHTING | 5 |
| FUEL/PROPULSION SYSTEM | 4 |
| SERVICE BRAKES | 4 |
| STRUCTURE:BODY | 3 |
| UNKNOWN OR OTHER | 2 |
| STRUCTURE | 1 |
| FUEL SYSTEM, GASOLINE | 1 |
| SERVICE BRAKES, HYDRAULIC | 1 |
| STRUCTURE:BODY:HATCHBACK/LIFTGATE | 1 |
| POWER TRAIN | 1 |
| VEHICLE SPEED CONTROL | 1 |
| SUSPENSION | 1 |
Subject: Complaint Regarding Failure to Repair Safety Recall â Brake Booster (STOP DRIVE ORDER) Background In August 2022, I received a âSTOP DRIVE ORDERâ 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 imm
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.
Mileage: 90,000
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.
Mileage: 196,577
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, whe
Mileage: 140,000
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.
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.
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.
Mileage: 230,000
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).
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 approximat
Mileage: 140,000
2009 MERCEDES BENZ ML350. CONSUMER WRITES IN REGARD TO NHTSA SAFETY RECALL 22V-315.
2009 MERCEDES BENZ ML350. CONSUMER WRITES IN REGARD TO NHTSA SAFETY RECALL 22V-315.
Driver side front door and driver side back door do not unlock or lock. You have to Manually unlock and lock.
Driver side front door and driver side back door do not unlock or lock. You have to Manually unlock and lock.
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.
Mileage: 104,284
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.
Mileage: 85,000
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.
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.
Mileage: 115,000
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.
Mileage: 40,000
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.
Mileage: 40,000
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.
Mileage: 45,351
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.