A strong gas odor appeared outside the left rear wheel. This only happens when the gas tank is full or near full. It was so strong that I had to remove it from my garage due to the pilot light warnings on my house heating unit and hot water heating unit. Dealer replaced left fuel sending unit and it made the odor even stronger; it did not fix the problem. This is reported on the internet by many owners repeatedly trying to fix this unit to no avail. Experts I've talked to say it is a manufacturing defect in the tank and its various components that mb has know about for years originally appearing in the e55 amg's. Of course, since the fuel system is not completely closed, it is constantly releasing gas fumes into the atmosphere.
2007 Mercedes-Benz E350 fuel system complaints
Page 10 of 10: complaints 251 to 254 of 254, newest first, as owners wrote them.
Bought a used 2007 mercedes benz e350 mar 14, 2011 drove less than 80 miles before check engine light came on because of code p0456. I have taken vehicle back to the dealership only to find that the fuel sending unit is leaking under rear seat/trunk area and that the vehicle needs front brake pads replaced. These issue was a preexisting problem that I was not told about even though dealer documents say otherwise. There is evidence of that on the emissions report. The check engine light had to have been reset to sell the vehicle with known problems to an unsuspecting buyer. The vehicle was suppose to have been serviced at the end of jan 2011 per document with only minimal miles accrued as the car sat on the lot. I first notified dealership april 5, 2011 it took until the 12th for them to finally tell me to bring it in to verify problem. The vehicle has been in the service department since april 12 2011 and I can not get anyone to call me back as to the status. The service manager apologized for the situation but said his hand are tied until someone approves the repairs. Today is april 15, 2011 I still have not been contacted by dealership.
Check engine light came on. Smelled gas in and around car. Dealer found minor purge leak. Vehicle failed fuel tank leak test. Gas is pooling in the area under the back seat behind the driver. Small nipple cannot be replaced without damage. Recommended new fuel tank. Fuel sending unit is a disaster. Same type of system that was in the e55 amg which was recalled. Please investigate. Updated 01/28/11 *bf according to the invoice, the fuel tank was leaking at the top of the tank around the expansion plug. Updated 02/03/11
Tl*the contact owns a 2007 mercedes benz e350. While driving 35 MPH, the contact smelled gasoline after she placed fuel in the vehicle. She also noticed fuel leaking from the rear of the vehicle. The dealer stated that a rubber ring inside the fuel tank failed. As of november 2, 2007, the vehicle had been repaired; however, the contact refused to take possession. The current and failure mileages were 2,228.
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