Service Information: Information on low-pressure fuel hoses

Please note that improper disassembly of the fuel low-pressure hoses (e.g. when changing the fuel filter) can result in consequential damage.

 If the fuel-resistant inner coating is damaged, this can lead to outward leakage of the low-pressure fuel hose over time.
Detached hose particles can clog the cooling and lubricating throttle of the high-pressure pump. The return flow quantity of the high-pressure pump can decrease as a result, which in turn impairs the function of the suction jet pump in the fuel tank  the right half of the tank runs empty.

Proper procedure:

 Press the fuel hose off the fitting using a blunt object (plastic wedge) or using a blunt or broad-edged tool.

 Loosen hoses by twisting them with your hand (do not use any sharp-edged pliers).

P47.00-2219-01

 Do not insert any sharp-edged tools between the hose and fitting!