2000 Mercedes-Benz ML320 Fuel system Problems
- Complaints
- 16about this part
- Share
- 10%of 166 total for the year
- Median mileage
- 50,276miles
- Trend
- FallingComplaints filed in the last 3 full calendar years are at least 25% lower than in the 3 years before.
NHTSA recorded 16 complaints about the fuel system of the 2000 Mercedes-Benz ML320, 10% of the 166 complaints for this model year. Where a mileage was given, the median is 50,276 miles. 2 of these say a crash was involved and 1 a fire, according to the filers.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“As I noticed in other complaints they all focus in the power steering issues, fuel / oil leaks and loss, esp option , electrical mail functions that relate with the ecu, problem with the shifter. All these are safety concerns since all the above problems can cause an accident . I have the same problems in my car and it is really difficult to operate the vehicle. …”
NHTSA complaint #11288070, filed 2019-12, 25 miles“The method in which a fuel tank is fastened to the vehicle chassis uses a steel strut to support a series of stainless steel straps. The dissimilarity in metals used in fastening the hardware of both combined with exposure to the elements will cause the strut to corrode without warning and the fuel tank to drop onto the roadway without prior symptoms or warning. The corrosion at the critical fasting points is not obvious with routine inspection. With many of these vehicles manufactured from 1998 through 2005 still on the road today, owners should be made aware of this potential safety issue.”
NHTSA complaint #11337445, filed 2020-07, 235,000 miles“Car would crank but would not start. Brought to dealer they changed the fuel pump, fuel lines, fuel filter, and cleaned fuel injectors. Picked up car, worked fine for a couple of days then same problem happend again. Called dealer for a tow. Because at the time I was to drive to dealer the power steering went out making car inoperable. Dealer said the clamp that connects to the power steering hose came loose causing the power steering fluid to leak out. That problem seems to be fixed. …”
NHTSA complaint #10000458, filed 2003-01, 45,552 miles“Oil consumption problem. Oil light keeps coming on between 200-600 miles of driving. Transmission is failing and engine needs to be replaced. Very poor.”
NHTSA complaint #10159163, filed 2006-06, 60,000 miles“Intermittently in cold temperatures when the defroster system is engaged it will disengage for a few seconds, then come back on. This reduces the driver's visibility and could cause an accident. Defroster system continuously does this until vehicle is turned off. This occurred on 3 separate occasions. Dealership serviced vehicle and replaced parts, but the problem still persists. In addition, consumer experienced fuel tank gauge shows only 3/4 full. Dealer stated that internal electrical fault in the fuel sending unit. Fuel sending unit replaced.”
NHTSA complaint #10056095, filed 2004-01, 8,000 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…
- 10033607Jan 1, 2010Mercedes benz: check for installation of spacer between brake and fuel line, install if necessary. The spacer between the brake line and fuel line may not have been installed…
- 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…
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 2000 Mercedes-Benz ML320
45 complaintsBrakes
34 complaintsEngine cooling
27 complaintsElectrical system
20 complaintsElectronic stability control
16 complaintsAir bags
14 complaintsTransmission and drivetrain
12 complaintsVehicle speed control
9 complaintsBody and structure
8 complaintsVisibility (wipers, defrost, mirrors)
7 complaintsExterior lighting
5 complaintsLatches, locks and linkages
5 complaints
← All problems reported for the 2000 Mercedes-Benz ML320
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