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hardly worth mentioning
Crashes / Fires:
0 / 0
Injuries / Deaths:
0 / 0
Average Mileage:
108,222 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 #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

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

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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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