Tank Assembly Problems of Mercedes Benz ML320

Mercedes Benz ML320 owners have reported 10 problems related to tank assembly (under the gasoline fuel system category). The most recently reported issues are listed below.

1 Tank Assembly problem of the 2007 Mercedes Benz ML320

Failure Date: 03/23/2012

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.

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2 Tank Assembly problem of the 2001 Mercedes Benz ML320

Failure Date: 08/28/2010

The contact owns a 2001 Mercedes Benz Ml320. While driving various speeds, the fuel gauge would read empty when fuel tank was full. The vehicle was not taken to the dealer for diagnostics or repairs. The VIN was not available. The approximate failure mileage was 50,000.

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3 Tank Assembly problem of the 1998 Mercedes Benz ML320

Failure Date: 09/30/2003

1998 Mercedes Benz Ml320: persistent sloshing sound coming from underbody of car. Presumed to be gas sloshing around in the tank, or some other drainage problem. Mb took two seconds to investigate by rocking the car and found nothing.

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4 Tank Assembly problem of the 1999 Mercedes Benz ML320

Failure Date: 10/03/2002

Consumer states that while driving at any speed and no warning the fuel tank cracked causing fluid to leak out. Dealer notified. Mr.

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5 Tank Assembly problem of the 2000 Mercedes Benz ML320

Failure Date: 08/19/2002

While driving on the freeway, on 2 separate occasions, my fuel tank leaked, apparently due to being struck by an external object. During non of the occasions, did I run over an object or notice any large sharp object on the freeway. The first time, the dealership would not cover the expenses, so I had to file a claim through my insurance company, which cost approx. $2000 with the tow and rental. However, within 10 months it occured again and I again had it taken to mercedes dealership, which they first claimed that they would not cover the cost. I called the mercedes corporate office and put in a complaint with the regional manager regarding the matter, and made them realize that this is not acceptable for the fuel tank to be so fragile and obviously not durable that it can be ruptured so easily during normal freeway traffic. Since this is a 4-wheel drive, it should be able to go off-roading and into mountains which could contain rocky roads or difficulty driving conditions and that I expect the car to withstand the drive. The put it into my record. I went to pick up my car from the dealership yesterday and mercedes decided to cover all my expenses this time, so I did not have to put in a claim. I am wondering if this is a common occurance with this model and the fuel tank. Please reseach and let me know as I do not want to be going through this again. Thank you, n.

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6 Tank Assembly problem of the 2000 Mercedes Benz ML320

Failure Date: 04/26/2000

Plastic fuel tank "cracked" open spilling gas.

7 Tank Assembly problem of the 1999 Mercedes Benz ML320

Failure Date: 10/14/1999

Noticed poor gas mileage. Contacted dealer, and replaced fuel sending unit. Second time replaced a fuel pump . Also, engine check light came on.

8 Tank Assembly problem of the 1998 Mercedes Benz ML320

Failure Date: 06/01/1999

Fuel gauge has been reading incorrectly since purchase. Dealer has repaired the fuel gauge 10 times, did not remedy problem.

9 Tank Assembly problem of the 1998 Mercedes Benz ML320

Gas gauge failed. Yh.

10 Tank Assembly problem of the 2000 Mercedes Benz ML320

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.


Other Common Gasoline Fuel System related problems of Mercedes Benz ML320


ML320 Service Bulletins
ML320 Safety Recalls
ML320 Defect Investigations