Fuel Hoses Lines/piping And Fittings Problems of Mercedes Benz C300

The contact owns a 2011 mercedes-benz C300. The contact stated that after refueling his vehicle, there was an abnormal fuel odor throughout the vehicle. The contact also stated that the check engine light flashed intermittently while driving at various speeds. The vehicle was taken to mercedes-benz of jackson (455 steed rd, ridgeland, ms 39157) where the mechanic discovered a crack in the fuel line that needed to be replaced. The contact was informed that there were no recalls on his vehicle. The vehicle was then taken to an independent mechanic who associated NHTSA campaign number: 12v557000 (fuel system, gasoline) with his failure however, his VIN was not included in the recall. The contact attempted to reach the manufacturer but was unsuccessful. The vehicle was not repaired. The failure mileage was approximately 87,000.

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There is a fuel hose (parts number: 274 070 3500) connect to the high pressure pump in front engine area. The fuel hose was fastened by a clamp (not sure the parts number) . Because of the design flaw, this clamp will loose since it's a snap joint assemblies not tighten by screws. Under this situation, the fuel hose will loose and affected by thermal expansion, this problem will cause fuel leak/seeping. We can smell fuel near the pump before we start car in cold in the morning and this smell can be smelled until the engine working into the normal operating temperature. Fuel is a very critical safety problem and usually we cannot take notice of this potential problem.

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