2007 Mercedes-Benz ML320 Fuel system Problems
- Complaints
- 2about this part
- Share
- 13%of 16 total for the year
- Median mileage
- 110,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the fuel system of the 2007 Mercedes-Benz ML320, 13% of the 16 complaints for this model year. Where a mileage was given, the median is 110,000 miles.
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.
“My 2007 MB ML320 CDI has problem with water entering where spare tire located,after rain or when i use car wash.It builds inside so much water that module for for fuel pump stopped working,all wires were corroded,I paid for repairs from my pocket because MB dealership refused to fix my vehicle even they new MB ML/GL models have issue with water entering spare tire area.Now I find out they have recall with over323,000 ML/GL models.Recall number22v-955.I would like to file this complaint because dealership refuses to cover my previous repairs.Water still entering trunk area,and I have to…”
NHTSA complaint #11502631, filed 2023-01“The contact owns a 2007 Mercedes-Benz ML320 cdi. The contact stated that the fuel tank failed. While a service station added fuel to the vehicle, he noticed that fuel was leaking to the ground. The vehicle was then taken to the dealer. The dealer inspected the fuel tank and found a cracked on the fuel tank. The dealer stated that the fuel tank would need to be replaced. The vehicle was not repaired. The approximate failure and current mileages were 110,000.”
NHTSA complaint #10454652, filed 2012-04, 110,000 milesRelated 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…
- 10029105Apr 2, 2009Mercedes benz: fuel loss at pressure regulator valve and/or poor engine running characteristics (shakes, knocks, surges, changes to lip home mode, poor output, poor fuel economy…
- 10026201Jun 16, 2008Mercedes benz: work on pressure regulator valve (as of cd13, 1600 bar system). Fuel loss at the pressure regulator valve and/or poor engine running characteristics (shakes…
- 10023491Sep 1, 2007Mercedes-benz - procedure for replacing fuel pump and fuel filter modules . Models ml63, ml320, ml350, ml500, ml550, gl320, gl450, gl550, r63, r320, r350, r500. Model year all.
Fuel system: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2009 | 9 | 32% |
| 2007 | 2 | 13% |
| 2005 | 1 | 20% |
| 2003 | 2 | 9% |
| 2002 | 2 | 2% |
| 2001 | 11 | 8% |
| 2000 | 16 | 10% |
| 1999 | 14 | 11% |
| 1998 | 20 | 15% |
Other parts of the 2007 Mercedes-Benz ML320
5 complaintsBrakes
3 complaintsSeats
3 complaintsElectrical system
2 complaintsTransmission and drivetrain
2 complaintsAir bags
1 complaintsSteering
1 complaints
← All problems reported for the 2007 Mercedes-Benz ML320
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Nov 1, 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