My car smell of gas fumes when I fill up. Online research has shown me that many other mb owners have the same problem. The mb gas sending units are leaking under the back seat. There was a recall for 2003 to 2006 models but not 2007 although many 2007 models have the same problem. I have young children that I often take with me in this car and feel this is a major health and safety issue. This is their defect. Please help me to get mb to correct this problem as it is a safety and emissions issue and they are to blame. Thank you.

- Bristow , VA, USA

My car smell of gas fumes when I fill up until it empties to 3/4 full. Online research has shown me that many other mb owners have the same problem. The mb gas sending units are leaking under the back seat. There was a recall for 2003 to 2006 models but not 2007 although many 2007 models have the same problem. I went to Mercedes-Benz of beverly hills and they would not correct the problem. I told them I felt that this is an emissions problem and a defect by mb and I should not be held liable to pay for their defect. Please help me to get mb to correct this problem as it is a safety and emissions issue and they are to blame.

- Huntington Beach, CA, USA

Local car dealership service reported that our vehicle was leaking fuel. This conversation occurred through my wife (her car), via telephone, and when I asked "why" I received the answer "normal wear and tear." The service write-up indicates that both fuel senders required replacement, at a cost of approx. $1200, which was performed. I believe this is simply another instance where the fuel sending units on a Mercedes E350 W211 chassis are leaking fuel, creating an extremely hazardous condition.

- Cary, NC, USA

Parked in garage. Every morning I would smell strong gas odor. Told by jackson automotive the gas tank was leaking. Asked them if gas tanks should go bad and they said no. They should last a lifetime. They charged me $1922.31 to replace and $41.08 for gas they put in new tank.

- Eatonton, GA, USA

After filling up gas tank there is a strong odor of gas in the garage. This goes away after 50-100 miles on the tank of gas. I have not noticed any gas leaking on the garage, just the odor. It seems stronger on the driver side of the car. Odor recurs after each fill up.

- Center Point, AL, USA

After filling up the fuel tank noticed a very strong gas smell coming from the car. There were no visible leaks in the ground our under the car. Continued to drive car and as fuel level dropped the smell went away. Filled up for second time and smell was back again. Began research into the issue and discovered there were 533 officially reported complaints and a lot more un-reported. Spoke with [xxx] (service manager) and Mercedes Benz of plano Texas and he informed me they are aware of this issue but will not provide any assistance. Nathan recommended I call the Mercedes Benz usa customer support number and discuss it with them. I did this as [xxx] requested and I was told by customer service that I need to have the Mercedes dealer officially diagnose the gas smell issue before they could provide any assistance. Customer service recommended that I pay the dealer the $90 diagnostic fee and then submit the paperwork to customer service. Once that is complete Mercedes Benz usa would decide whether or not they were going to provide any assistance and fix the issue. (this process seems backwards) information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Plano, TX, USA

This car has everlasting gasoline smell. This smell is very evident and persistent inside the closed spaces like the garage not to mention in and around the car, inside and out, pretty much all over the smell. The smell is so pungent that you can smell inside the moving car throughout the drive, regardless of the length or time of the drive, causing constant headache. The smell is even more poignant when the gas tank is filled full tank of gas, which causes even greater headache deterring the ability to drive!

- Dallas, TX, USA

After filling up the gas tank and parking it in the garage it gives off a terrible gas odor which gets more and more strong the longer the car is in the garage. Once the cars fuel tank empties somewhat it seems to not emit the gas odors while parked in the garage. I was told to reference action number PE12001.

- Aventura, FL, USA

Shortly after we purchased the car on 3/13/2013 we noticed that after we filled up the car there was often the smell of gasoline. This never occured when the gas tank was not completely filled. After a number of times investigating this smell, our auto mechanic was finally able to determine that fuel was leaking from the center vent connection of the tank. The fuel tank was removed and they found theleak around the center vent hose connection. The fuel tank and seals were replaced on 8/30/13. Updated 9/24/13 updated 12/05/13

- Montgomery, TX, USA

Noticed a fuel smell in cabin of car and in closed garage. Very strong when recently filled up. Brought to dealer and they found leaking fuel pump assembly on drivers side. Required complete replacement of fuel system. Updated 9/19/13

- Baton Rouge, LA, USA

Fuel odor noted for several weeks surrounding exterior of vehicle, esp. Adjacent to left rear wheel. No fuel puddling noted on ground. Eventually fuel odor was noted within interior of vehicle. Removal of rear seat bench revealed fuel leak, with fuel pooling noted at fuel pump located in well on upper left side of plastic saddle-style fuel tank. Based on fuel-induced discoloration of exterior of plastic pump assembly, leak had been present for some time. Fuel could be visualized leaking from top of delivery pump with fluid level sensor, when pump was energized. Installation of new style pump (211 470 41 94) eliminated problem.

- New Orleans, LA, USA

I got in my car yesterday to drive it and the odor of gasoline was overwhelming. I took it to my mechanic who told me that one of the fuel pumps under my car had a faulty connection and, as a result, fumes were escaping into the car. The entire pump needs to be replaced to the tune of at least $800. He said the only reason he knew what was wrong, without even looking at the car, was because another client had the exact same issue. He agreed that it sounds like a defective part.

- Thousand Oaks, CA, USA

We have noticed an extremely strong gasoline smell. This is while the vehicle is parked and while it is moving. The repair shop said the fuel tank is leaking and needs to be replaced because of a fire hazard. Updated 8/22/13

- Sanford, FL, USA

There is always a strong odor of gas outside my 2007 Mercedes Benz E350 each time I fill the gas tank. I never "top off" or over-fill the gas tank. I never smell the gas odor while I am inside my car with the doors closed and with the windows up. I never see gas on the ground under my car during or after filling my car with gas. It takes about two days (about 100 miles) for the gas odor to disappear. Until it disappears, the odor is very strong when I park my car inside my garage, causing me to always have to leave the garage door up about five inches after each fill-up so the gas odor can escape the garage. I am filing this complaint because I now understand that I am not alone with this problem. It appears their is some kind of design and/or manufacturer's defect in the fuel system. This is a safety hazard. It deserves an investigation.

- San Antonio, TX, USA

This is the second occurrence. Dealer replaced engine once. I reported the first incident on confirmation number (ODI number) is: 10507237. This second incident occurred on or about 13 July 2013, car started having illuminating odor in the cabin again that resembled fuel. Garage and car odor was so bad it actually entered my home and I had to leave the garage door open to ventilate. Went on line and found other owners exhibiting exact defect. Took vehicle to Mercedes dealer and was informed that a leak from the fuel tank was the cause again and it was not from damage but from the sending unit and lines. After reading the warranty and contacting Mercedes directly, I contacted the dealer and informed them that it is a covered item and they should make the repair as a warrantied item. I am making this complaint because I believe that the replacement unit will be the same oem part that has not been modified to solve this failure from duplicating later.

- San Antonio, TX, USA

When filling the fuel tank, there is a smell of fuel when parked in the garage until 40 or 50 miles is put on the car. After that the fuel smell goes away. It happens only when I fill the fuel tank. I do not top the tank off. I only fill until the nozzle shuts off. One time after fillup I drove 2 miles and parked in a friends driveway that had a steeper angle and the car leaked some fuel out on the ground and the check engine light came on.I have not brought the car in for repair yet.

- Las Vegas, NV, USA

When I fill up with fuel I have a fuel leak coming from top of tank under drivers side back seat where the wires and lines are screwed into top of tank. I have read this seems to be a problem on several of these cars and assume it is a fire hazard especially since the electrical wires are in the pool of fuel on top of tank. When fuel level goes down it stops leaking.

- Jonesboro, AR, USA

Strong gasoline smell inside the car and my garage when I fill up my gas tank.

- Ocean Springs, MS, USA

Engine light came on, taken to dealership four times. Dealer stated that there may be a leak on top of gas tank or tank may have to be replaced. Previous owner stated that there was a strong smell of gas in vehicle when tank is full. Previous owner had same issue after car was only four years of age.

- Clarksville, TN, USA

2007 Mercedes Benz E350. Consumer writes in regards to vehicle leaking gas. The consumer stated when he returned home, the entire garage smelled of gasoline. Gas was leaking over the exhaust system on the driver's side.

- Longmeadow, MA, USA