2005 Mercedes-Benz AMG E55: fuel pump failure

Filed Jul 7, 2024 · Fuel system · TN

Fuel pump housing failed allowing gas to leak, further degrading parts of the fuel system, ultimately causing the locking ring to fail and gas to leak under rear passenger seat. Fumes filled the cabin while my family and I including two young children were inside. Fortunately, this issue was discovered rather quick, if not the fuel could have leaked onto the hot exhaust under the tank and ignited. I recently found this issue is well known in the Mercedes-Benz W211 chassis. You have multiple complaints on file. Mercedes had in fact issued an extended warranty of the fuel system however, it has since expired. The car provided no warning messages prior to failure. The car has yet to be inspected by the dealer, mechanic, or insurance.

Filed Dec 16, 2014 · Fuel system · 61,150 miles · PA

Fuel smell inside and outside of vehicle. Inspected fuel pump inspection doors under backseat to find a pool of gasoline.

Filed Dec 13, 2014 · Fuel system · 94,580 miles · IN

Check engine light illuminated, code scan revealed code p0456. Inspection reveals fuel leakage at both the left fuel sender and the right fuel pump housings. Liquid fuel is externally evident along with the associated smell of raw fuel vapor. This is a very common problem with these vehicles and the manufacturer should be held responsible for repair of what is a potentially dangerous issue.

Filed Nov 17, 2014 · Electrical, Fuel system · 85,000 miles · VA

I smelled a gas order that was progressively getting worse. I decided to pull the passenger seat to follow the smell and noticed a puddle of gas on top of my fuel pump sending unit. I decided to pull out the unit and noticed the unit was discolored around the connector terminals. I believe the terminal melted the sending unit causing the sending unit to leak fuel. I have this is a very common problem with these cars, please help.

Filed Sep 8, 2014 · Fuel system · 55,675 miles · FL

Very strong smell of gasoline inside and outside the vehicle. Regarding the interior, it was determined that there was a leaking seal at the fuel sender unit. The seal at the fuel sender unit was replaced in march 2010. This problem recurred in late 2013. In march 2014 the fuel pump assembly, fuel pump lock ring and fuel sender seal were all replaced with new parts. The problem has re-appeared again. Regarding the exterior smell it was determined that there is a fuel leak at the fuel tank vent area. This was initially manageable by keeping the fuel level below 3/4 full. In the last couple months this problem exists at any fuel level. This overwhelming fuel smell will completely envelop the entire garage within 15 -20 minutes and possesses an extreme health risk and potential for an accident to happen. The level of exterior odor now is so high that it penetrates into the interior of the vehicle, whether the vehicle is standing still, in motion and with the engine on or off. From the research I have done this exact same problem is common to this model mercedes benz and has been documented for a number of years. I have not received any notification or communication from mercedes benz at any time regarding this issue. This is unacceptable!

Filed Mar 4, 2014 · Fuel system · 24,019 miles · FL

We have owned this car since july 2007 mb certified pre-owned with 14,000 miles.the car has been in the shop many many times over the years for fuel smell. They have replaced the seals, fuel pumps, fuel line connections, upper evaporator system connector,fuel filter module assembly,fuel level sensor seals,leaking around pressure sensor seam, fuel tank and still the problem persist till this day. I have had mb extended warranty till 2011 and all work was performed at the mb dealership.

Filed Feb 18, 2014 · Fuel system · 102,100 miles · TN

Very strong fuel smell after filling up tank at gas station. Fuel pumps and senders located under rear passenger seat. There are 2 of these pumps one on each side of the vehicle. After removing the rear seat bottom access is gained to the fuel pumps/senders. Appears to be fuel puddling around the pumps/senders.

Filed Oct 29, 2013 · Fuel system · 60,000 miles · NY

Tl* the contact owns a 2005 mercedes-benz e55. The contact stated that upon inspection, it was found that there was a fuel leak. The vehicle was taken to the dealer where it was found that the fuel pump, sending unit, and fuel lines needed to be replaced. The vehicle was repaired but the failure recurred. The manufacturer was contacted about the failure. The failure mileage was 60,000. The VIN was unavailable.

Filed Oct 4, 2013 · Electrical, Fuel system · 29,833 miles · MO

Filled my car up the night of 10/1/13. Parked the car inside garage connected to my house. Upon waking up the morning of 10/2/2013, I was overwhelmed with very strong fuel odor. I traced the source of the odor to my 2005 mercedes benz e55 amg parked in my garage. I immediately opened the garage door to evacuate the fuel odor. I was able to locate the source of the fuel smell to the drivers side back seat. Armed with a fire extinguisher, I started the car and backed out of my driveway and notice a fluid puddle and liquid line formed. I got out to find gas pouring out from under the driver side rear passenger compartment. I continued to backed the car away from the house incase of fire. The vehicle was taken to the local dealership. There, the dealer pulled the rear seat and the fuel pump inspection cover to confirm the source of the fuel smell. What we found was raw fuel sitting on the top of the fuel take that had apparently leaked from the drivers side fuel pump. The dealer informed me that they had seen this problem on other e55's and that as of now, there was no recall issued so I would have to pay out of pocket to repair the vehicle. This repair has cost me in excess of $1000.00. There appears to be a significant safety issue with the design of this vehicle. Allowing raw fuel to escape from the fuel take and "puddle" both on top of the fuel tank and under the vehicle creates an immediate fire hazard. To make matters worse, there is an electrical connection for the fuel pumps immediately next to the raw fuel puddle. I was very fortunate not to have an ignition source in my garage. I shudder to think of the results had anything ignited the enclosed fuel vapors (inside my garage while my family slept above). Please investigate this issue and force a safety recall before someone looses a vehicle, home, or worse yet ... A life!

Filed Sep 10, 2013 · Fuel system · 111,000 miles · IL

After a recent fill up, came back to the car overnight and there is a extremely strong gas smell. The car cannot be driven and was taken to the shop for repair. The gas tank is leaking as well as the fuel pump and sender unit. I was told the sender has shorted and caused issues with the rest of the system.

Filed Jul 13, 2013 · Fuel system · 85,000 miles · CA

Noxious gasoline odor emitting into cabin. Lifted up rear seat to find puddle of gasoline gathering on top of fuel tank, leaking from fuel pump unit. Reference the federal safety agency action number: pe12001.

Filed Jun 28, 2013 · Fuel system · 75,690 miles · CO

On hot days there is a strong odor of gas inside the car. Which makes the car unbearable to drive and not sure if it's safe! Other owners of the same model of car have reported this and consider it a safety hazard as well. Leaking fuel pumps have been diagnosed and independent shops are aware of the issue in colorado.