2009 Mercedes-Benz ML350 Fuel system Problems
- Complaints
- 5about this part
- Share
- 5%of 93 total for the year
- Median mileage
- 72,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the fuel system of the 2009 Mercedes-Benz ML350, 5% of the 93 complaints for this model year. Where a mileage was given, the median is 72,000 miles. 1 of these say a crash was involved, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“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. …”
NHTSA complaint #10733001, filed 2015-07, 72,000 miles“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.”
NHTSA complaint #10676860, filed 2015-01, 93,000 miles“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.”
NHTSA complaint #10450137, filed 2012-03, 40,000 miles“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).”
NHTSA complaint #11516886, filed 2023-04“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.”
NHTSA complaint #10715118, filed 2015-05Related service bulletins
- 10167553Jul 1, 2013Combination message: "Clean fuel filter" is displayed. The fault code 162500 (water level message - Bosch) or P226997 (water level message - Delphi) or 171600 (filter load…
- 10032707Sep 10, 2009Mercedes: ensuring unobstructed movement for the fuel level sensor. When installing the left or right fuel level sensor, it is essential for it to have unrestricted, unobstructed…
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2015 | 8 | 15% |
| 2014 | 12 | 18% |
| 2013 | 9 | 16% |
| 2012 | 16 | 25% |
| 2011 | 2 | 2% |
| 2010 | 1 | 1% |
| 2009 | 5 | 5% |
| 2008 | 2 | 3% |
| 2007 | 2 | 2% |
| 2006 | 5 | 3% |
| 2005 | 1 | 4% |
| 2004 | 4 | 11% |
Other parts of the 2009 Mercedes-Benz ML350
40 complaintsSeat belts
18 complaintsElectrical system
17 complaintsBrakes
6 complaintsExterior lighting
5 complaintsBody and structure
5 complaintsOther or unknown
2 complaintsSeats
1 complaintsSteering
1 complaintsSuspension
1 complaintsTransmission and drivetrain
1 complaintsVehicle speed control
1 complaints
← All problems reported for the 2009 Mercedes-Benz ML350
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology