Filled up my car with gas. Came home, parked it in the garage. Next morning noticed a very strong fuel order in garage. Took it to mechanic and said the fuel tank was cracked and leaking gas vapors. Scared me as my natural gas water heater is in the garage as well.

- Buckeye, AZ, USA

Constant strong odor of gasoline. Outside the car and inside the car coming from the back seat.

- Dallas, TX, USA

There's strong gasoline odor from my vehicle whenever I refuel, particular after it's garaged. The smell seems to go away once I used up 1/3 or 1/2 tank. Recently the smell seems to be stronger. I can smell it even when it's not garaged.

- Oviedo, FL, USA

I own a 2004 E320 with only 44,652 miles. After every fill up strong order of gas from left side near back seat area also check engine light will always comes on. I took car to a mb mechanic trained by mb he removed the rear seat and left fuel sending unit cover, found a huge puddle of gas on and round gas tank pump area. I was told the pump seal was no good, I had the pump and seal replaced, filled tank again with the same result. Finally, last Friday, with the seat and sending unit cover off we filled the tank and drove the two miles back to the mechanic shop, when we arrived the whole area around the pump was full of fuel, upon inspection one could see the fuel running from the top of the fuel tank and puddle around base of the fuel pump. We video the fuel running from top of the fuel tank. Contacted local mb dealer where I purchased the vehicle but was told there is no warranty on vehicle. The dealer will inspect and repair the vehicle but the expense will be on me. I don't allow anyone in my family to drive this car because of this problem. This is very dangerous situation that needs to be address.

- Ewa Beach, HI, USA

After filling fuel tank, fuel leaking from top of the fuel tank into panel under the rear seat.

- Ewa Beach, HI, USA

Constant problems with fumes/fuel leak"? the entire passenger compartment fills with strong fumes after filling gas tank or when near empty?? have had it checked for leaks multiple times without locating any leaks ongoing problem--at times its impossible to sit in the backseat of the car the fumes are so strong!!! and the garage is filled with the smell of gasoline yet no leak or spill anywhere??"

- Hyde Park, NY, USA

I noticed a strong gasoline smell inside the garage when the door is closed. I walked around the car trying to determine where it is coming from. The strongest gas smell is around the rear wheelwell on the drivers side. Three days later, the gas smell went away. Then I went to fill-up my gas tank after four days and there is the gasoline smell again inside the garage on the same location.

- Cerritos, CA, USA

The contact owns a 2004 Mercedes Benz E320. The contact stated that the vehicle was parked when he smelled a strong odor of gasoline fuel. The vehicle was not taken to have the failure diagnosed, but the contact noticed a fuel leak. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was 60,000.

- East Windfor, NJ, USA

NHTSA action number: PE12001 began smelling fuel coming from rear driver's side area (under rear seat) once fuel tank was fully filled up. The smell would persist until a little above 3/4's of the tank remaining. About two months later, when trying to fill tank up all the way, gas pump would click off before filling up (with about 2 or 3 gallons still empty in the tank). Beginning of March, the check fuel cap warning would come on in the instrument cluster. Fuel cap was replaced and still same error shows.

- West Hills, CA, USA

After refueling and filling the fuel tank, a strong odor of gasoline emits from the outside of the car and inside the car. After checking online, previous complaints of fuel level sending unit seal failure causing pooling of gasoline around the sending unit next to electrical connectors and directly under the left rear passenger seat. I removed the rear seat and access panel to the sending unit and discovered pooled gasoline around the sending unit. The sending unit appeared tight. I did not notice any cuts or failure to the hose, just around the sending unit itself. My local Mercedes dealer claimed there are no recalls for this condition, even though there appear to be many complaints. The dealer also told me I would have to bring my car in to be inspected by a mechanic to truly diagnose the issue.

- Sacramento, CA, USA

The contact owns a 2004 Mercedes Benz E320. The contact stated that the vehicle was parked and she smelled a strong odor of fuel. The vehicle was taken to an authorized dealer and the fuel pump was replaced. The failure continued. The vehicle was taken back to the dealer and the seal ring on the fuel pump was replaced. The failure continued. The vehicle was again taken back to the dealer and the contact was informed that the fuel tank was leaking. The contact was also informed that the entire fuel tank may need to be replaced. The vehicle was not repaired. The failure mileage was 107,830.

- Mclean, VA, USA

A strong odor of gasoline emanates from car after filling it up with gasoline. Had a mechanic trouble shoot and it was determined to be a leak in the fuel sensor which was causing gasoline to puddle on top of fuel tank underneath the back seat of the automobile.

- Scottsdale, AZ, USA

2004 E320 Mercedes fuel smell possibly due to a recall issue of the fuel sender recall and/or fuel filler recall. I just purchased the car a couple of months ago and noticed this smell yesterday when I filled up my gas tank. I did some research and noticed that there was an emissions recall from Mercedes about these issues. I am scared that the recall part is leaking fuel and will blow up killing my family and I.

- Harvey, LA, USA

The contact owns a 2004 Mercedes Benz E320. The contact stated the vehicle was being examined by an authorized dealer for routine maintenance when he was informed there was a fuel leak coming from the fuel sending unit. The contact was also informed there was a failure within the seal of the fuel sending unit. The manufacturer was not aware of the failure. The vehicle was not repaired. The failure and current mileages were 102,000.

- Alpharetta, GA, USA

The contact owns a 2004 Mercedes Benz E 320. The contact stated that the vehicle was parked in the garage and exhibiting an abnormally overpowering gasoline fuel odor. The odor filled both the garage and the contacts residence. The vehicle was taken to an independent mechanic who diagnosed the failure as a fuel leak. The manufacturer was contacted and advised that a case manager would return the contacts call. The vehicle was not repaired. The approximate failure mileage was 22,716. Updated 08/01/11 updated 08/03/11 updated 2/29/12

- Wellington , FL, USA

Mercedes 2004 E320 fuel tank leaking under rear passenger seat. Strong odor of gasoline which is worst right after fillup, became progressively worse over time.

- Lafayette, LA, USA