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really awful
Crashes / Fires:
0 / 1
Injuries / Deaths:
2 / 0
Average Mileage:
72,218 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 4 of 7)

« Read the previous 20 complaints

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

problem #67

Oct 132014

E350 6-cyl

  • 80,000 miles


When I put the car in the garage overnight, there is a stronge odor of gas escaping. Engine light continued to stay on.

- Houston, TX, USA

problem #66

Oct 292014

E350 6-cyl

  • miles
There is a strong smell of gasoline when vehicle is parked. Took it to the dealer and they indicated there is not a recall for this issue and the tank should be replaced. Researched this and found there are several complaints for this issue that have been lodged. The average Benz owner parks their car in the garage. The average homeowner has a gas water heater located in the garage. This is an open flame and gasoline connection which can result in an explosion.

- Atlanta, GA, USA

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problem #65

Jun 022014

E350 6-cyl

  • 48,000 miles
Strong gas smell especially when parked and after fueling.

- Scottsdale, AZ, USA

problem #64

Oct 282014


  • 63,378 miles


After I filled up gas and parked for 2 days, I went back to the car and smelled gas odor from the outside and the inside of the car. I drove the car for 78 miles and still smell the gas while driving. I went back and parked, the smell still occurred. When I checked online, there was a lot of complaint about this issue ( fuel sending unit) on this car (Mercedes Benz wagon 4matic E 350. 2003-2009. ) the gas sending unit has leaked. I think this is a safety issue that NHTSA should open up the investigation and conduct a recall about this issue, because I have two children's of my own that sit in the backseat of our vehicle. I will take no chances to drive this vehicle and we still own a payment on it. If this issue is not being investigate, I will take it up to the next level ( national television). I hope this issue will resolve at this level immediately. Thank you [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Savannah, GA, USA

problem #63

Sep 062013


  • 80,000 miles
Strong gasoline odors inside and outside of the vehicle upon refueling the tank to full. The garage fumes with gas odors and the vapors can even be seen in the air. We are afraid to fill the tank and also very afraid if someone is nearby with a cigarette or fire..

- Norcross, GA, USA

problem #62

Oct 092014

E350 6-cyl

  • 160,000 miles
There is a strong smell of gasoline in the interior of my E350. It is my understanding that this has been a problem with other E350 cars, 2007 model year.

- Nashville, TN, USA

problem #61

Oct 012013

E350 6-cyl

  • 80,000 miles
After filling my tank, the smell of gasoline fumes, overtake the inside of the car and fumes vapors outside and around the vehicle until the gas gauge is reduced below full. The vapors and fumes are so bad that the garage and car emits the odors for weeks afterwards. I took the car to a mechanic and was told there is a crack in the "neck" of the fuel tank and Mercedes is aware of the problem. Est costs to repair is around $2500.

- Norcross, GA, USA

problem #60

Sep 162014

E350 6-cyl

  • 72,000 miles


Fuel tank leaking gas under rear seat.

- Mckinney, TX, USA

problem #59

Oct 242012

E350 6-cyl

  • 87,000 miles
The contact owns a 2007 Mercedes E350. The contact stated that a fuel smell emitted into the cab of the vehicle and fuel was leaking from the top of the fuel tank. The vehicle was taken to a dealer for diagnostic testing and the entire fuel tank needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 87,000...updated 11/17/14 the consumer stated that the child occupant received a headache that may have been caused by the fumes. Updated 8/5/2015

- Clearwater , FL, USA

problem #58

Oct 012013

E350 6-cyl

  • 60,000 miles
Strong smell of gasoline in the passenger compartment. Upon further investigation, gas was found pooled on top of the fuel sending unit located under the back seat on the drivers side.

- Cary, NC, USA

problem #57

May 052014


  • 62,512 miles
The contact owns a 2007 Mercedes Benz E350. The contact smelled fuel inside the vehicle. The dealer stated that the two fuel sending units needed to be replaced. The vehicle was not repaired and the manufacturer was not notified. The approximate failure mileage was 62,512.

- Oceanport, NJ, USA

problem #56

Jun 292014


  • 110,550 miles
6/29/14 traveling when check engine light came on. Stopped and looked under hood, did not see anything out of the norm, drove it home. Drove a few days later to dealership. Found intake manifold faulty and cam adj maginet. Not repaired-$3000 quoted. Drove it home where it remains. Searches on internet shows this defect is under investigation. Also car rides rough; all four wheels are bent due to regular road wear and tear. Both these issues could have caused catastrophic consequences. I am not the first owner of this mb. Were mb aware of these defects and failed to inform me prior to purchasing the E350? the manufacturer needs to remedy these defects.

- Livingston, AL, USA

problem #55

Jul 022014

E350 6-cyl

  • 70,000 miles
2007 E350 has strong fuel odor after filling tank. After 3/4 of a tank then fuel smell dissipates. Reference #12-001. Also has been an issue with other Mercedes Benz E class of different years.

- Dublin, OH, USA

problem #54

Jul 012014


  • 88,000 miles
Filled gas in car up to full and have had a strong smell of gas inside and outside of my car. I always fill the car only up to a half of a tank but with the holiday weekend coming I filled all the way up since gas was cheaper. Never had this problem until I filled it all the way up. After looking this up on the internet I found this site and wanted to give my experience so hopefully this problem will be resolved by Mercedes Benz. Its sad that it will take someone dying or a major fire to have Mercedes actually look into this situation.

- Toledo, OH, USA

problem #53

May 242014

E350 6-cyl

  • 83,000 miles
Fuel gauge showed 3/4 tank, car stopped, mechanic told us the car was out of gas. I spend $600 at the shop to find out this. They first wanted to replace tank, fuel pump and senders. Gas gauge is not working proper, any advise?

- Meadow Bridge , WV, USA

problem #52

Jun 012011

E350 6-cyl

  • 69,000 miles
Strong fuel odor after filling up. The odor last until I drive the car for at least 40-50 miles. I have read on Benz numerous reports of the same problem. Mercedes-Benz of austin reported..cause is left fuel lever sender unit pressure sensor leaking. With so many complaints and the enormous danger of having so much fuel accumulating around electrical components, I don't understand how a major disaster has not yet occurred. I have called Mercedes customer service managers in New Jersey on more that one occasion but no action has been taken. My last communication was April 23, 2013. Everyone I have talked to, associated with Mercedes Benz in some way, has tried to convince me that the problem isn't serious when I tell them Mercedes should be responsible for the cost of repairs. The repair cost was quoted at approximately $1000. After my investigation of the number of owners of Mercedes Benz cars with similar issues, a recall or major service bulletin is in order. This has to be brought to the attention of those who will do something about it. Please continue your investigation and let me know your findings. I have driven mb since 1966. The one I speak of is my 7th Mercedes. I believe they can do better for their customers.

- Killeen, TX, USA

problem #51

May 122014


  • 58,750 miles
Once I fill up, there is a very strong odor of gasoline smell inside and outside of the car. I took of the rear seat, the fuel pump cover and there is a puddle of gas. It doesn't happen when the fuel is below 3/4 of a tank of gasoline.

- Austin, TX, USA

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