Other Fuel System Tank Mounting Problems of Mercedes Benz E350

I have been reading all fuel related complaints regarding my vehicle and its overwhelming the amount of complaints over the same thing. I have a gas odor in rear left side of vehicle after I feel my car. My certified mercedes mechanic inspected the rear seat are and notice fuel at the sending unit on top of tank. Mercedes benz says my VIN is not part of the extended warranty but yet I have the exact same problem that those non pzev vehicles. Is there some kind of ruling or agreement says mercedes needs to resolve this problem??.

See all problems of the 2007 Mercedes Benz E350 🔎.

I filled the tank before going on vacation. Car was left parked on my driveway. When I came back there was a strong smell of gas inside the car. The gas tank is under the back seat. Took vehicle to the dealer to fix. They replaced the tank inner module, cable harness, auxiliary pump, seal ring and breather pipe. Sending unit was leaking large amounts of fuel. Removed and replaced left and right side sending units. Modules in fuel tank and seals for the same. The problem was not fixed. I have to keep the fuel tank at less than 3/4 tank for it not to smell. Very concerned safety wise. For the amount of money I spent they could have replaced the entire fuel tank unit.

See all problems of the 2006 Mercedes Benz E350 🔎.

2007 mecedez benz E350 noticed strong fuel/gas odor inside car after filling up gas tank and would subside after gas tank was approximately 3/4. My children & I had to roll down the windows while driving due to feeling nausea. This has occurred often for weeks. Last Thursday on 8/7/14 I was driving vehicle coming to a signal light at an intersection and the car started shaking like is was loosing power, then it shut off in the middle of the street at the intersection. I tried starting it back up and it would not start at all after cranking for few seconds looking like it was not getting fuel at all. I had to get my car towed, the mechanic said it was the fuel pump and it will cost $2000 to replace. This seemed extremely hazardous for car safety having to smell the fumes and almost causing an accident. There have been an enormous amount of complaints regarding the fuel emission pump/tank & this manufacture defect of the car which is a major road safety hazard item should be considered as a safety recall from mercedes car company.

Filled gas tank and parked car in garage. The next morning there was a strong odor of gasoline in the garage. Looked into problem and found a problem with the gas sensing unit on the left side under the rear seat. Found the large nut loose and tightened. Filled gas tank again on 4/21/14 after partially filling in the interim. The next morning the garage had a gasoline odor. Removed seat and found the entire area was filled with gasoline, probably about 100 cc. Removed gasoline and drove 50 miles. Returned car to garage. After four hours gasoline odor is in garage and the sensing unit is damp with gasoline. Called mercedes dealer and set an inspection date.

After returning home from the filling station and parking my E350 mercedes in the garage, I noticed a strong fuel smell outside the driver's side rear of the vehicle, and to a lesser extent inside the car. I was certain I had not somehow "over-filled" it, and after repeated fuelings since then, I know that is not the case. This problem is occurring when the tank is above 3/4-full. It progressively lessens as the amount of fuel in the tank is reduced. I took the car to the mercedes dealer (where I bought it new) and they advised that the fuel-sending unit is leaking. They wanted $659 for the repair which I declined as I wanted to first do some research and possibly get another quote since the price was absurd. I was then astounded to learn that this is a very common problem on these expensive vehicles, with numerous complaints documented within various automotive forums and filings with the NHTSA. It is wrong that a fundamental part like this should leak fuel. This is not a part that should require any service and in most circumstances should be expected to last the life of the vehicle. There are millions of other vehicles out there without such problems. So, clearly mercedes did not get it right on their design. I am now concerned about parking the car in my garage since it presents a safety hazard due to the fumes. I expect this problem will only get worse. Mercedes needs to step-up and retrofit these vehicles now instead of leaving it up to the consumer to absorb the cost of their manufacturing mistake.

I purchased my mercedes E350 in November of 2008. I began noticing a strong fuel odor every time I would fill the tank, which would dissipate after a few days. Since the odor would go away within a few days, I didn't realize that it was a safety concern. I took the car into the mercedes dealership for oil changes and such and they would always mention a long list of items requiring preventative maintenance, but never mentioned anything about the fuel tank (although the gas smell was obvious at times). In June of 2012, my husband began driving the mercedes to work. He smelled the odor immediately upon filling causing him massive headaches. Also, he noticed gas leaking under the car on the driver's side near the rear tire whenever he filled up the tank. A mechanic investigated the problem, and discovered a puddle of gasoline upon removing the rear seat. I could not believe the amount of gasoline that had pooled inside the cabin of the car. It was decided that the sending units needed to be replaced. Mercedes replaced the sending units, and knowingly sent us on our way without correcting the problem. Replacing the sending units did not resolve the issue. Heavy leakage continued, and the odor of gas became overwhelming as the temperatures remained in the 100's. When the car was returned to mercedes, they informed us of a leak in the gas tank and quoted us $2600+ for repairs. The mercedes service technician stated that our problem was not uncommon, especially with the arizona heat. I had been driving the car unknowingly for approximately four years with the fuel tank issue becoming increasingly worse and consequently, my husband and I have been unable to conceive a child.

Tl-the contact owns a 2006 Mercedes Benz E350. The contact stated that only when refueling to full capacity, a strong odor of fuel emitted inside of the vehicle. There was a small amount of fuel found on the ground next to the vehicle on various occasions. The vehicle was taken to an independent mechanic, who stated that there was a leak in the fuel tank and the filler neck valve. The vehicle was not repaired. The manufacturer was notified of the problem. The approximate failure mileage was 60,000. Kmj.