2007 Mercedes-Benz E350: fuel pump failure

Filed Oct 29, 2026 · Fuel system · MD

I first noticed the problem around March 2026. When I fill the fuel tank of this 2007 Mercedes-Benz E350, gasoline pools on top of the tank beneath the rear seat, inside the passenger cabin. I have breathed gasoline fumes from it. There was no fire or crash. An independent Mercedes specialist's records include a March 2026 recommendation noting a very fine EVAP leak at the fuel tank and/or vapor line and that the tank is no longer available. On May 29, 2026 (65,138 miles), with the check-engine light on and a strong fuel smell inside the vehicle, the shop replaced a leaking left fuel pump and seal. A fuel-system test that day indicated further checks were required. The gas pooling continued after the pump was replaced. On July 28, 2026 (66,067 miles), the shop noted that the fuel tank is warped. I wrote to Mercedes-Benz USA on October 13 and October 16, 2026 with my service records and have not received a response.

Filed Jul 22, 2022 · Fuel system · FL

Due to the odor of gasoline both inside and outside my car I brought my car to the local Mercedes’ dealership. Upon inspection they found a small crack in my fuel tank which allowed gasoline to leak into another compartment. The dealer stated they would not be able to replace fuel pump without replacing the gasoline because of the “danger and risk of fire”. I believe that the leakage of gasoline and the fumes associated inhaled presents a very real danger, and risk to health. Upon research I found that this is a major issue that has been addressed by your department. After a 3 year investigation this investigation was closed due to the extension of the manufactures warranty to 15 years. My car is 8 months out of the extended warranty. When speaking to Mercedes’ Benz hotline, the representative stated receiving several phone calls recently with reports of the same issue. I appreciate your attention to this matter. I am hoping this case with be reopened, and the manufacturer held responsible for replacing faulty fuel tanks.

Filed Jul 15, 2022 · Fuel system · CA

Vehicle fuel system known component issue, fuel pump failure, intermittent. Driving vehicle can lose power at speed, causing potential loss of control as hydraulic assist to steering and braking fails with engine. This known issue has intermittently cause our car to fail to start, or fail in operation. This was a known issue, the manufacturer was allowed to avoid a recall by extending the warranty for this component (fuel pump in fuel tank assembly) to 15 years. Our car started showing this around that time (3 months ago, when extended warranty expired), however we were not then aware of said warranty. Now that we've been two months of diagnosis and discussions with MBUSA Customer Care, they are not willing to replace the known failure point as warranty expired 3 months ago. This should have been a recall from the beginning, and now we, and many others to come, will have the value and usefulness of our vehicles reduced or eliminated. Those not aware of the potential failure of this very expensive part, will be at risk every time they operate their cars at speed on the public highways. the federal safety agency should never have allowed this warranty extension scheme to substitute for a recall. There is no way to predict failure, and entire fuel tank assembly replacement is <$4,000. Fuel pump is not individually accessible or available for replacement, only entire tank assembly in these PZEV vehicles is available. Mercedes-Benz is shirking responsibility here, and flipping it over to the dealerships and consumers.

Filed Feb 20, 2020 · Fuel system · 148,000 miles · FL · 1 injury

Tl* the contact owns a 2007 mercedes benz e-350. The contact stated that the vehicle had an odor of fuel inside. The vehicle stalled. The contact stated that the odor was more prevalent in and under the rear passenger seats. The vehicle was towed to a fields motorcars located at (4141 n florida ave, lake land, fl 33805) and was diagnosed that the fuel pump needed to be replaced. The vehicle was repaired however, the failure recurred. The contact stated that the fuel odor made her ill. The manufacturer was contacted and the contact was referred back to the dealer. The vehicle was not repaired. The failure mileage was approximately 148,000.

Filed Dec 2, 2019 · Fuel system · 270,000 miles · NC

I can smell gas fumes and my fuel pump failed in my 2007 mercedes e350. While mercedes extended the warranty on the fuel tank / pumps for the e series, non-pzev, I have been advised that my car has pzev emissions and I am not covered. The non-pzev cars received a 15 year extended warranty with unlimited mileage. The pzev cars have mileage capped at 150k. The resolution mercedes provided to the federal safety agency was misleading since they did not provide a resolution for all of the cars with fuel tank / pump issues.

Filed Sep 3, 2019 · Electrical, Engine · 129,000 miles · PA

Tl* the contact owns a 2007 mercedes-benz e350. While driving various speeds, the battery warning indicator illuminated. In addition, the power steering became difficult to maneuver and the vehicle stalled. Also, the check engine warning indicator remained illuminated. The contact was unable to restart the vehicle. The vehicle was towed to mercedes-benz of west chester (located at 1260 wilmington pike, west chester, pa 19382, (484) 313-1100) where it was diagnosed that the fuel pump needed to be replaced. The fuel pump was replaced; however, the failure recurred twice. Additionally, the fuel pump filer, water pump, tensioner pulley, and serpentine belt (which was replaced nine times) were replaced, but the failure recurred. The contact was also informed that there was an electronic failure for which the mechanic was unable to repair. The contact also stated that the fuel gauge and coolant system were inoperable, and there was a failure with the water pump. The manufacturer was informed of the failures. The approximate failure mileage was 129,000.

Filed Aug 22, 2019 · Fuel system · 130,000 miles · CA

Tl* the contact owns a 2007 mercedes-benz e350. The contact smelled a fuel odor while driving the vehicle. The vehicle was taken to an independent mechanic, but a failure was not found. Recently, the contact was unable to start the vehicle and had it towed to the same independent mechanic. The mechanic diagnosed that the fuel pump was defective and the entire fuel tank would need to be replaced in order to repair the failure. The manufacturer was notified of the failure and stated that the vehicle was not under warranty. The vehicle had not been repaired. The dealer was not contacted. The failure mileage was 130,000.

Filed Jun 25, 2019 · Fuel system · 140,000 miles · CA

As the co-owner/buyer of a 2007 mercedes-benz e350, I am very displeased with this first car purchase from the dealership in pleasanton. Honestly, the look/make of the car can be very deceiving. In fact, it only took one day to realize the car smelled of gas inside the vehicle. Also, after taking the backseat off, gas was leaking from the fuel pump located under the seat so my dad and I decided to take the vehicle to the dealership in oakland to see if there were any recalls under the car's VIN or if there was anything they could do about it that didn't have to cost us, but sadly no. The thing that makes this situation even more worse was that not once did both dealerships mention anything about the warranty for a fuel tank replacement that this particular model came with and the main complaint in order to have this fuel tank replacement is a smell of gas in the cabin, which I and my dad have mentioned about the smell of gas inside the vehicle to both these dealerships that supposedly they couldn't do nothing about unless we paid them more than half the price we paid for the car just to get it fixed. The saddest part of this situation is that we didn't find out about the warranty until the car died and couldn't crank or start so I had to do some research on google and found out about the extended warranty and took it to the dealership in oakland, but the car was no longer covered under the warranty due to the vehicle being a pvez. We had no idea the car was a pvez until that particular day so the car was definitely not covered under the 15 year/unlimited mile warranty as I had hoped considering the mere fact that the car had to die at over 150,000 miles even though we had known about the problem when the car was at 139,071 miles when we first bought it, but we were just completely clueless about the warranty.

Filed Oct 22, 2018 · Fuel system · 130,000 miles · SC

Tl* the contact owns a 2007 mercedes-benz e350. While the vehicle was stationary, the fuel system failed. When the contact filled the fuel tank, fuel entered into the cabin of the vehicle. Also, the vehicle failed to start after the fuel tank was filled. The vehicle was towed to an independent mechanic who diagnosed that the fuel pump failed. Dick dyer & associates (5825 two notch columbia rd, south carolina 29223, (803) 786-8888) was made aware of the failure and stated that there was no recall on the vehicle. The vehicle was not repaired. The manufacturer was made aware of the failure. The contact referenced tsb number: p-47-10-63. The failure mileage was approximately 130,000. *dt updated 12/06/18

Filed Oct 5, 2018 · Fuel system · 10,100 miles · WA

When filling the tank, there is an unusual smell of gas throught the vehicle. Which I attributed to gas being on my hand since I live in a state where most gas station are self service. Last week while driving, my car suddenly shut off while sitting at a traffic light. After vehicle was diagnosed to be a fault fuel pump, I started looking on line and found that this is a persistent problem with vehicle of the same make model and year, but not the vehicle id number. The manufacturer did extend warranty on some vehicles, but not tp all that have the same issues. I do not see how all vehicles could exhibit the same problem, but not received the same coverage. Although my vehicle was designed for the strict emission standard they have in california, I still believe they use the same gas tank on the same model year. To repair my vehicle, it would cost over 3000 dollars due to the fuel tank and fuel pump are one complete unit. While this may seem irrelevant to some, I started envisioning getting hit in the rear or some one smoking in or near my car that could result in a massive fireball of destruction. Please address this situation before someone dies.

Filed Sep 20, 2018 · Fuel system · 11 miles · CA

Vehicle stalls while driving,able to pull over to side of highway.engine will not restarted.towed vehicle to mercedes dealer,diagnosis discover that fuel pump failed.fuel pump need replacement.this is a very unsafe condition,vehicle can stall at any time and cause serious accident/crash.find information the federal safety agency investigation ea 13-003 about fuel tank/fuel system that related to this condition since fuel pump is part of fuel tank as told by repair dealer, but dealer and mercedes manufacture customer service refuse/decline to perform this repair under this investigation agreement.can we have some assistance on this matter

Filed Aug 23, 2018 · Fuel system · 160,000 miles · CA

Leak from the gas tank under back seat. Smell of gas inside the car. Fuel pump doesn't work.