At 9,000 miles my 2006 Mercedes C350 had to have a fuel pump replaced. It was out of warranty (low miles usage for 5 year old car) so I had to pay $900 for the repair. I could smell fuel everytime I filled the tank and the Mercedes dealer said the pump had to be replaced. I read about a recall of E350 models being recalled for the same reason with the same engine. I asked the dealer about this and they said mine was not part of the recall because it is a C class Mercedes. It has the same engine with the same problem and I think this should be looked into.

- Palm Springs, CA, USA

Fuel flex line from firewall to Fuel rail is leaking at both connections, ie. both ends at the swaged fitting.

- New Market, MD, USA

In July 2009, after filling my vehicle with gasoline (38,000 miles), I drove home, parked my vehicle in my garage and exited the interior. After exiting, I smelled the very strong odor of gasoline emitting from, what appeared the rear of the car. I did not see any leaks or any evidence of fuel, so I went inside my house. Several hours later, I entered my garage and was immediately overwhelmed with the fumes of gasoline. I checked my car again, but was unable to find any leaks. I then open my car door and the fumes were even stronger. After looking around, I noticed the odor was coming from under the rear seat. Fearing an explosion may occur, I opened my garage doors and car door and turned on several fans to "air-out" the area. The next day, I drove to the dealer and explained. The service manager said it was a common problem with my year and model and said the fuel gaskets were bad on top of the gas tank which is right under the back seat. He explained when filling up, the seals leak, become saturated with fuel and even saturate the bottom side of the seat. He said if I wanted it fixed, it would be an estimated $500. He also said if I did not want to pay to fix it, he suggested I only fill my tank to 3/4 so the seals would not become wet. I explained to him that my car was still like new with only 38,000 miles and mbz should fix the manufacturer defect at no charge. He refused. I continue to deal with this dangerous, faulty issue today. My car only has 79,000 miles on it and the problem continues to get worse. I noticed several others have the same problem and lawsuits have been filed, however, I do not know their status. Can you please assist me with this dangerous issue. My family and I suffer from severe headaches each time this problem occurs. Thank you very much.

- Glendora, CA, USA

I have a very loud odor of gasoline coming from near my back wheel on the drivers side. The car rides fine and I get good gas mileage but it is not leaking anywhere. I took my backseat out and there was nothing wet. I also replaced the gas cap and it did not help

- Mount Pleasant, SC, USA

When the gas tank is filled past to full, there is an overpowering fuel smell in vehicle cabin. The offending smell also fills the garage and the garage door must be partially left open for safety: Fear of explosion.

- Orlando, FL, USA

The contact owns a 2006 Mercedes Benz C350. The contact stated that a strong odor of fuel emitted inside the vehicle. The vehicle was diagnosed and repaired. The manufacturer was made aware of the failure. The failure mileage was 116,000.

- Glendale, AZ, USA

Every time I fill up the gas tank; there is a strong oder of fuel in the cabin. My wife and I have a newborn and now do not feel safe driving with such a strong odor..this is a safety hazard.

- Brentwood, CA, USA

We smelled the odor of gasoline in our garage, so took our vehicle to Mercedes of henderson. We were informed that the fuel tank was cracked around the top mounting bolt and needed to be replaced. Upon further investigation, we noted that this is an ongoing problem with the Mercedes E and Clk class vehicles. The fact that the car has never been in an accident, this is obviously a defect in the manufacturing process. When researching on the internet, we observed numerous Mercedes owners with the same problem. Does our home have to burn to the ground before something is done to have Mercedes correct this problem.

- Henderson, NV, USA

The contact owns a 2006 Mercedes Benz C350. The contact stated that while the vehicle parked, there was a strong fuel odor emitted from the vehicle without warning. The vehicle was taken to a private mechanic where it was diagnosed that the fuel pump needed to be replaced. The manufacturer was not made aware of the failure. The vehicle was repaired but the failure was not resolved. The approximate failure and current mileage was 50,000.

- Surprise, AZ, USA

Around December 2010 I began noticing there has been a gas smell from rear wheel housing and rear seat whenever I fill up the gas tank. I have experienced with various fuel level and concluded that gas smell starts when gas is more than 3/4 full. I have been trying not to fill gas more than 3/4 and have recently changed a delivery unit and all the seals, which have been problematic areas for many Mercedes. The gas smell did not go away and I don't feel safe due to the risk of fire in addition to the unpleasant gas smell in the cabin.

- Scottsdale, AZ, USA

When I filled the fuel tank, the inside of the car smells very strongly of gas fumes. The whole garage smelled strongly of gas fumes and gas was dripping on the floor of the garage. If the hot water heater decided to ignite, it could have caused a fire or explosion. I believe this is a similar issue to NHTSA investigation ea 13-003. The Cls class and the E class share the same chassis and fuel tank. If possible, please expand your investigation to include Cls class vehicles.

- Chandler, AZ, USA