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really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
2 / 0
Average Mileage:
72,255 miles

About These NHTSA Complaints:

This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.

So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.

2007 Mercedes-Benz E350 fuel system problems

fuel system problem

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2007 Mercedes-Benz E350 Owner Comments (Page 3 of 7)

« Read the previous 20 complaints

problem #87

Nov 012014


  • 100,000 miles


My 2007 E350 Mercedes has a fuel leak. The local Mercedes dealership (el dorado hills, ca) inspected the car, found the leak to be coming from the left side fuel pump at the fuel tank, acknowledged that it was a common problem, and that Mercedes had extended the warranty to cover fuel system repairs. So I left the car to be repaired, but later the dealership calls and says my car is a pzev (partial zero emissions vehicle) car, and therefore not covered by the warranty extension, even though it is the same part that fails on a non-pzev car that is covered. I've had several conversations with mbusa ([xxx] ) and the local dealership (service rep. [xxx]). they have offered me a 15% discount on the repair. I have already paid them $165 for the inspection. This dangerous defect in the fuel system should be repaired free of charge by Mercedes. Information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- El Dorado Hills, CA, USA

problem #86

Feb 232015


  • 77,000 miles
I purchased a 2007 E350 4matic wagon for my parents July of 2011 with 47,000 miles. 3,000 miles later, we noticed a strong fuel odor after filling the tank. Took it to mb and a filter and seals were replaced which seemed to correct the problem. My dad noticed the problem again this past week. We took it in to a certified mb shop and the problem could not be detected using a pressurized test. The tank was lowered after being told by mb there had been a recall issued for the entire tank. The problem is, the full assembly system for the tank is not available and the eta for the part is unknown. Unfortunately, the authorized shop was told the part was available, so they ordered it and lowered the tank. Then mb called them back to tell them the eta was unknown. So now, the dilemma is that we have no part, the tank is lowered, the shop needs to be paid for the labor, mb has no eta on the part and my parents are without a car. Issue now: 1. why were we never informed by mb of this recall" 2. who pays for the labor at the authorized shop? 3. how is it possible mb has no idea of an eta on one of it's own parts? help!!! what do I do"

- The Colony, TX, USA

problem #85

Jul 292011

E350 6-cyl

  • 94,000 miles
After purchasing this car in May 2011 from a used car dealer, after every refueling with filling the tank there was a powerful smell of gasoline as if it had been spilled. Going forward we tried to only partially fill the tank which seemed to take care of the problem for awhile. As time went on the odor continued to increase so in 8/2014 we took to our regular mechanic to fix. He replaced the gasket and still the gas smell continued. 02/2015 took car to Mercedes where I was told based on my VIN that the fuel tank replacement was covered under an "extended warranty" that Mercedes Benz had offered. However, once the car was reviewed they then stated that this warranty was only for "plastic tanks" which mine was not and the cost to replace would be $2600 which was with a discount! it is clearly a problem that is not unknown to mb, but still no help. Car should have recalls related to this problem.

- Dallas, TX, USA

problem #84

Jan 182011

E350 6-cyl

  • 72,000 miles


After refueling there was and continues to be a strong smell of gas inside the vehicle and outside of the vehicle.

- El Sobrante, CA, USA

problem #83

Feb 132015


  • 100,000 miles
I own a 2007 Mercedes E350 and I often notice a strong gasoline smell in and around the car, especially after fueling. Based on internet research this sounds a lot like the complaints many other owners are registering. I have not discussed it with a dealer yet but I am sure any related repairs will be costly. I first started noticing the gasoline smell over a year ago but it was mild and has gotten worse recently.

- Suwanee, GA, USA

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problem #82

Oct 022014

E350 6-cyl

  • 74,000 miles
Noticed that whenever I filled up my tank I smell gasoline inside the vehicle. This always happened anytime I fill my tank.

- Costa Mesa, CA, USA

problem #81

Mar 012014

E350 6-cyl

  • 120,000 miles


Fuel is leaking from top of fuel tank when tank is full, causing odor inside of cabin, and fuel to drip onto ground.

- El Dorado Hills, CA, USA

problem #80

Nov 272014


  • 49,841 miles
[this is only explaining the first occurrence, this has happened a plethora of times since] after stopping at a fuel station and filling the fuel tank from 1/4 to full, we drove on a local road at an average speed of about 30mph for approximately 3 miles. After this we merged onto a major highway where the average speed we were going was between 60-75mph. It was after driving at these speeds for 10 minutes that we started to smell the odor of gasoline in the cabin. Without any other cars in front of us or any noticeable spill [on the road] that we may have passed, there could not have been any other origin of the odor except for the E350. At first it was a low odor of gasoline emanating from under the front passenger side seat, but soon a strong odor of gasoline filled the entire cabin, to the point of forcing us to roll down the windows. The smell did not go away completely but rolling the windows down to allow fresh air to purge the cabin did help. We have taken the car into the dealership multiple times and have requested a complete check-up of the vehicle. The dealership (euro motors of devon hill, pa) has told us that there is nothing wrong with the vehicle (fuel system wise). However, after refueling [especially from the tank being at 50% and then me filling it to 100%] the strong odor returns inside the cabin. It goes away after the fuel levels have dropped from a full tank to 3/4 full, after which the odor does not return when driving the car. I have just heard about other having the same issue and thought I was paranoid. However, it seems that this is endogenous between all other E350S. Please feel free to contact me regarding any diagnostic data that would help you get to the bottom of this.

- Limerick, PA, USA

problem #79

Oct 012014


  • 90,000 miles
The contact owns a 2007 Mercedes Benz E350. The contact stated that after refueling, fuel fumes emitted into the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 90,000.

- Joppa, MD, USA

problem #78

Jan 012015


  • miles
Gas fumes inside car when parked.

- Ellenwood, GA, USA

problem #77

Sep 142014

E350 6-cyl

  • miles


I have a very strong odor of gasoline after filling the tank. I am afraid that my water heater is in the garage with that gas smell it might explode. I took the car to dealer and they said it's normal. But when I checked the consumer complaint online many owners have the same problem. I have to park my car outside when I smell gas in my garage. Please look in to it before someone have to die because the defect. I never own a car before that had that problem and I think this is a very very serious matter.

- Las Vegas, NV, USA

problem #76

Dec 202014

E350 6-cyl

  • 84,321 miles
Strong gas fumes after filling gas tank that will not go away the garage smells strong fumes, people in the car complains of the smell is this safe to smell and be confined within a car or near water heater in the garage. Seems like a hazard to me.

- Palmdale, CA, USA

problem #75

Jan 142015


  • 83,000 miles
The contact owns a 2007 Mercedes Benz E350. After refueling and parking the vehicle in the garage, fuel fumes emitted inside the contact's residence the next morning. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 83,000.

- Virginia Beach, VA, USA

problem #74

Jan 082015


  • 58,963 miles
The contact owns a 2007 Mercedes Benz E350. The contact stated that upon entering the vehicle, a strong fuel odor could be smelled. The vehicle was taken to the dealer, but it was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 58,963.

- Bonwell, SC, USA

problem #73

Jul 072013

E350 6-cyl

  • miles
Had fuel tank sender units repaired to stop fuel leak, less than 2 years the tank is leaking again from the sender units, dealer would not repair it.

- Plano, TX, USA

problem #72

Dec 182014

E350 6-cyl

  • 46,100 miles
After filling gas tank, strong smell of gas in garage, especially around the rear of the vehicle, as if there was fuel overflow, but there was no fuel overflow at the filling station - did not top-off tank, stopped at first shut-off.

- Johns Creek, GA, USA

problem #71

Nov 102014


  • 121,000 miles
The contact owns a 2007 Mercedes Benz E350. The contact stated that fuel fumes emitted inside of the vehicle. The vehicle was taken to the dealer. The technician diagnosed that fuel reservoir was cracked and needed to be replace. The vehicle was repaired. The manufacturer was not notified of this issue. The approximate failure mileage was 121,000. The VIN was not available.

- Madison, AL, USA

problem #70

Dec 032012

E350 6-cyl

  • 90,000 miles
In January, 2009, I purchased a certified used Mercedes Benz E350 from a Mercedes dealer in tuscaloosa, Alabama. At the time I purchased my vehicle it had approximately 40,000 miles on the odometer. In December, 2012, I began to notice the smell of fuel in the cabin of my car. The smell was overwhelming and increased over time. At the time I first noticed the fuel smell, my vehicle had approximately 90,000 miles on the odometer and the vehicle was no longer under warranty. I took the vehicle to my Mercedes dealer in georgetown, Texas, and was informed of the faulty gas seal and was very surprised when they informed me that I had to replace the seal, entire gas tank, and gas lines. To fix the problem, which was now a safety hazard as well as an environmental hazard to the occupants of my vehicle, I had to pay over $3,600 out of pocket to have the repair completed. The repair was completed in an afternoon and I have had no further issues. My complaint is that this is a known safety hazard with the make/model of this car and Mercedes refused to fix this known safety issue. Without fixing this problem, the car became unusable.

- Round Rock, TX, USA

problem #69

Nov 112013

E350 6-cyl

  • 112,000 miles
The contact owns a 2007 Mercedes Benz E350. While driving approximately 35 mph, fuel fumes emitted into the vehicle. The failure recurred multiple times after the fuel tank was filled. The vehicle was taken to an independent mechanic for diagnostic testing. The technician diagnosed that the fuel pump needed to be replaced. The vehicle was repaired, but the failure recurred. The VIN was unavailable. The manufacturer was not notified of the failure. The VIN was not available. The approximate failure mileage was 112,000. Updated 12/30/14 the consumer stated the fuel pump was replaced, the location of the fuel pump was cleaned twice, replaced foam insulation on top the tank, the entire rear seat component was replaced, and the fuel tank was replaced. The vehicle was deemed unsafe to drive per the service tech due to the gasoline smell. Updated 5/28/2015

- Madison, AL, USA

problem #68

Nov 152014


  • 51,000 miles
The contact owns a 2007 Mercedes Benz E350. The contact stated that fuel was leaking from the fuel tank sending unit, causing fuel fumes to be emitted into the vehicle. The dealer and manufacturer were made aware of the failure. The failure mileage was 51,000.

- Inwood, WV, USA

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