Mercedes Benz ML320 fuel pump problems

Filed Jan 19, 2023 · Electrical, Fuel system · PA

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 constantly drain and vacuum trunk area.I hope you will have another recall or add older MB ML/GL to recent recall list.Thanks.

Filed Dec 19, 2014 · Fuel system · 64,000 miles · VA

Vehicle would not start after being parked for approximately 15 minutes. Towed to local mb dealer, diagnostics indicated fuel pump failure. Fuel pump replaced. Approximate mileage 64000. Vehicle failed to start on 4 other occasions over course of next 8 months. Twice the vehicle started the next day. Once the fuel pump relay was replaced. Vehicle failed to start again 10/10/14 and was towed to area mb dealer. Diagnostics indicated fuel pump failure again. Fuel pump was replaced again! Approximate mileage 145000. Waiting for it to leave me stranded again.

Filed Jun 1, 2012 · Fuel system · 182,741 miles · WA · fire

Reference odi 10457817 I have since received a letter from mercedes corp. Stating the fuel pump fire is due to age and normal wear and tear. I asked how a fire inside a fuel tank can be normal for any reason. They would only repeat that it was normal for the age of the vehicle. I cannot get rid of the vehicle right now for financial reasons . However I don't have to let my family ride in it. Please help because this is not right. I have the letter from mb stating the above.

Filed May 8, 2012 · Fuel system · 182,741 miles · WA · fire

My ml320 vehicle was driven for approximately five hours round trip then parked for the evening. I attempted to start the vehicle the following morning and the vehicle would not start. After doing an exhaustive diagnostic on the vehicle. I removed the fuel pump from inside the fuel tank. I saw that the wiring harness/connector for the hot lead was black and brown in color and the plastic around the harness had melted. I took pictures and stored the pump. I emailed mercedes and asked them to get back with me since my wife and children had been in the vehicle and this is the family vehicle. I also read several forums and complaints on the internet reference mercedes fuel pumps including my specific model. I read how they have caught on fire. I also saw a picture of a fuel pump out of a ml 320 in 2006 that had caught fire and almost looked identical to my fuel pump I had removed. I have looked for recalls and still have not heard back from mercedes. I am at a loss on what to do or if there is anything I can do. I was told that mercedes knows about this problem but that hey are unlikely to do anything because of the cost. I want to report this in case something does happen to me and my family. It will be on record. Thank you for your time.

Filed Jul 30, 2011 · Fuel system · 15,818 miles · NY

Fuel pump failure. The car was towed to the dealer. This is the second fuel pump failure in the less than one year. During the 2 years of ownership, the car has had several problems with the engine starting, requiring multiple trips to the dealer for service. On many occasions the cause was not determined and the vehicle was returned with the problem unresolved. The vehicle was purchased new and serviced by the dealer,

Filed Feb 27, 2009 · Steering · PA

Tl*the contact owns a 2002 mercedes benz ml320. While making a turn at approximately 35 MPH, the contact heard a loud noise coming from the steering column. The driver had to exert greater effort to make a left turn. There were no warning indicators illuminated on the instrument panel. On several occasions, the vehicle was taken to an independent mechanic to have the power steering fluid reservoir filled because it was extremely low. The vehicle was taken to an authorized dealer for diagnostic testing and they repaired the vehicle according to the federal safety agency campaign id number 03v‑121. The power steering cooler hose and one clamp were replaced; however, the failure still persists. Recently, the fuel pump hose and clamps were replaced at the contact's expense. The technician recommended that the fuel pump be replaced. The VIN and mileages were unknown.

Filed Sep 13, 2006 · Fuel system, Steering · OH

Recently, my 2000 ml320 would end up cranking while starting. Took 2 attempts to get the car started up. Took my mercedes to the local authorized shop and was told that the fuel pump went out. Had the fuel pump replaced & filter & the new updated lines. Previously back in december 2005, power steering line was damaged. Serviced at same dealership. A small hole was discovered on the pipe and power steering went out. Almost made me hit the garage.

Filed Aug 10, 2006 · Fuel system · 55,000 miles · GA

Dt*: the contact stated while driving 40 MPH the vehicle hesitated. The smell of gas was present when parking and a puddle of gas was noticed under the vehicle. An independent repair shop inspected the vehicle and determined the wiring harness of the fuel pump melted and replaced the fuel pump. The dealer was contacted.

Filed May 30, 2006 · Engine · CA

My mercedes year model 2000 ml320 engine stalls while driving; most often it comes as a surprise when I am cruising at freeway speeds and slightly back off on the throttle. The engine totally shuts down and will restart after waiting a few minutes. It does not seem like a fuel pump problem because the car will run fine for several months afterward without shutting down.

Filed May 17, 2005 · Electrical · 71,000 miles · FL

Dt: intermittent delay of 7 seconds when given gas. The vehicle has been in the dealership 6 times, and they still haven't been able to figure the problem out. The car has had this problem for 2 years. The car is worse when it's hot outside and when the consumer is pulling out. The car doesn't have the problem when it's cooler outside. The dealership has changed out the pedal value sensor, a slide mechanism for the intake manifold, a wiring harness and fan for the ECM, the fuel pump and fuel filter with upgrades, the ECM, and now the wiring harness has to be changed since it was built in germany.