hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
107,587 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.

2004 Mercedes-Benz E320 fuel system problems

fuel system problem

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2004 Mercedes-Benz E320 Owner Comments (Page 4 of 4)

« Read the previous 20 complaints

problem #8

Feb 182010

E320 6-cyl

  • 65,523 miles


My 2004 Mercedes Benz E-320 began emitting a strong odor of gasoline in 2010 and was taken to the local dealership (schumacher Mercedes in scottsdale, Arizona) for inspection when it was determined that there was a leak in the fuel tank and that it needed to be replaced along with the left sender pressure sensor and tank fittings. The vehicle had approximately 60,000 miles at this time and was outside of the initial warranty so the $2,500 repair was undertaken. Approximately 2 years later and 40,000 miles later, the same symptoms returned and the vehicle was taken back to the same dealership for inspection. It was determined once again that the same problem was occurring and the fuel level sensors were leaking fuel and needed to be replaced again. The cost for this repair was estimated to be $1,200 and this time the repair was rejected. The service advisor at the dealership claimed this is a common problem with these cars and there was nothing they could do about it. The vehicle had always been maintained by the dealership since the beginning and apparently there have been no recalls issued that we were aware of for these malfunctions and defects. I have contacted Mercedes corporate office and they opened up an investigation only to determine that the dealership acknowledged the problem with the vehicles but neither party was willing to accept responsibility for the defect and no additional assistance would be available or commissioned for me. This is a major safety issue and should not be considered a common issue or routine maintenance for any car, let alone a Mercedes Benz. If something does not get rectified with this epidemic malfunction of these vehicles, it could lead to a major accident or even death.

- Phoenix, AZ, USA

problem #7

Feb 182010


  • 65,523 miles
The contact owns a 2004 Mercedes Benz E320. The contact stated that the vehicle emitted a strong gasoline fuel odor once the fuel tank was filled. The vehicle was taken to the dealer who inspected the vehicle and located the failure as the fuel tank being cracked due to defective material. The fuel tank was replaced; however the failure was not corrected and the vehicle continued to release a strong gasoline fuel odor. The vehicle was taken back to the dealer who performed a diagnostic and then advised that the fuel sending unit had failed. The vehicle was not further repaired. The failure mileage was 65,523 and the current mileage was 105,190.

- Phoenix , AZ, USA

problem #6

Sep 202012


  • 35,000 miles
The contact owns a 2004 Mercedes Benz E-320. The contact stated that the vehicle was leaking fuel from the top of the fuel tank, causing an overpowering gasoline odor inside the vehicle from the rear driver's side. The vehicle was taken to the dealer who advised that the top of the fuel tank was fractured and would need replacing. The vehicle was not repaired. The manufacturer was notified of the failure and offered no assistance. There was an investigation under NHTSA item number: PE12-001 (fuel system) that could have been related to the failure. The failure and the current mileage was 35,000.

- Chandler, AZ, USA

problem #5

Aug 232012

E320 6-cyl

  • 76,400 miles


After filling up fuel, but not topping off, there is a very strong odor of fuel in the cabin. After evaluation the fuel sending unit is leaking severely and the seal shows signs of leaking. Only 76,400 miles on a 2004 E320 dealer quoted $2500 for replacement of the sending unit, new seals and new fuel tank.

- Oro Valley, AZ, USA

problem #4

Aug 012011

E320 6-cyl

  • 99,000 miles
Whenever I fill up my gas tank, I get a very strong gas odor in the car. Its very strong in the back seat and around the rear driver wheel on the outside. It goes away once my tank gets to 3/4 full approximately. My kids are in the backseat in their car seats, inhaling these fumes. Now my wife is pregnant, and she inhales these fumes too. The dealer wants to charge an arm and a leg. I need help.

- Houston, TX, USA

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problem #3

Aug 102011

E320 8-cyl

  • 60,000 miles
I came out to my garage one morning to find a my car wreaking of fuel. I decided to drive the car around for a few to see if it the pungent odor would go dissipate altogether. During this time, I took it to my mechanic to let him do a quick once-over before he left for the day. He stated that there was fuel leaking onto my exhaust. Being that he didn't have the tools and whatnot to replace the sending unit, I had it towed to Mercedes Benz. I was not going to let my girlfriend drive the car to the dealership. No way, no how. Skyland automotive(my local mecedes Benz dealership) found a puddle of fuel under my back seat. They replaced the fuel sending unit partially under my third party warranty. I, however, had to pay roughly $500 out of pocket. I have heard of this issue happening on many W211 E class cars, it has happened to some more than once. I'm at 7X, xxx miles now and definitely don't want to have to go through this again. Fuel leaking onto the ground is bad enough, but leaking onto my exhaust isn't to be tolerated. It's downright dangerous. [xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Brevard, NC, USA

problem #2

Apr 042012


  • 73,000 miles
The contact owns a 2004 Mercedes Benz E320. The contact stated that while driving at various speeds, the check engine lamp would illuminate and fumes were emitted into the vehicle. The vehicle was taken to the dealer who diagnosed that there was a leak in the fuel tank. As a result, the filler neck needed to be replaced and the fuel tank needed to be inspected thoroughly. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure mileage was 73,000 and the current mileage was 75,500.

- Bayonne, NJ, USA

problem #1

May 152012

E320 6-cyl

  • 51,300 miles
After filling the tank there is a strong smell of fuel inside the cabin and above the left rear wheel. The fuel vapors saturate the garage space and also enter the house environment. The fuel leaks from the top of the fuel tank at the fuel sending unit. There was approximately 200 cc of gasoline pooled in the plastic cover of the sending unit. This fuel evaporates through the cabin and ouside through the space of the rear left wheel. The car, my family, and my house is at the risk of fire and gasoline explosion. The mb authorized dealer declined to repair free of charge this serious manufacturer's defect because the vehicle is out of warranty. The repair cost is approximately $2400 which includes replacement of the entire fuel tank and the sending units.

- Lafayette, LA, USA

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