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Fuel systemPart report

2004 Mercedes-Benz ML350 Fuel system Problems

Complaints
4about this part
Share
11%of 35 total for the year
Median mileage
48,175miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 4 complaints about the fuel system of the 2004 Mercedes-Benz ML350, 11% of the 35 complaints for this model year. Where a mileage was given, the median is 48,175 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.

“Car suddenly developed extreme gasoline odor after a brief 20 mile trip. Cursory check did not identify source. Upon return trip, same extreme sickening odor returned. Upon pulling into garage gasoline was visibly pouring from underneath the car and pooling on ground. It looked to be coming directly from gas tank area but could not determine main source as it was sprayed throughout the undercarriage. Aside from the nausea, this clearly posed a significant fire danger and was immediately transported to the dealer awaiting repair costs now. …”

NHTSA complaint #10730246, filed 2015-06, 67,000 miles

“Hello my check engine light is on in my 2004 Mercedes ml350 so I took it to a Mercedes dealership for inspection and repairs. They kept my suv for 8 days and finally called me back and said they believe the check engine light is on because I need to replace my charcoal canister shut off valve. Now this component takes the gas vapors that has not been burned off and reroutes it through the charcoal canister and back into the engine so it can be burnt off and not enter the atmosphere and enter the inside of the vehicle. …”

NHTSA complaint #11431676, filed 2021-09

“While driving my 2005 mercedes benz 350 along route 1 in new jersey, without hearing or feeling anything, my gas tank was punctured. When I stopped I saw a puddle under the car and found that there was a steady flow of gas from under my car. The fire deparatment came and the car was towed away. The entire gas tank was replaced at my expense since mercedes benz claims that fuel tanks are not the subject of any warranty and if they are punctured it is not their responsibility. …”

NHTSA complaint #10133797, filed 2005-08

Related service bulletins

Fuel system: other model years

YearComplaintsShare of year
2015815%
20141218%
2013916%
20121625%
201122%
201011%
200955%
200823%
200722%
200653%
200514%
2004411%

Other parts of the 2004 Mercedes-Benz ML350

Steering
6 complaints
Air bags
5 complaints
Brakes
4 complaints
Electrical system
4 complaints
Seats
4 complaints
Engine cooling
3 complaints
Engine
2 complaints
Exterior lighting
2 complaints
Other or unknown
2 complaints
Body and structure
2 complaints
Equipment
1 complaints
Tires
1 complaints

← All problems reported for the 2004 Mercedes-Benz ML350

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