Fuel pressure release - AR07.03-P-1460-01VA

Fig 1: Identifying Protective Cap, Service Valve, Pressure Hose, Angled Piece, And Container

Courtesy of MERCEDES-BENZ USA

1. Unscrew protective cap (1) of the service valve (2) of the fuel distributor.
2. Insert end of the pressure hose (01) into the container (3).
3. Screw on union nut of the angled piece (01a) to the service valve (2). At this point, the service valve (2) is opened and the fuel pressure in the fuel distributor is reduced. Fuel escapes from the end of the hose.
4. Unscrew the union nut of the angled piece (01a) from the service valve (2).
5. Screw protective cap (1) onto the service valve (2) of the fuel distributor. For vehicles with fuel tank with exterior filter, code 917 the protective cap (1) must be tighten with torque. Ensure that the sealing ring of the protective cap (1) is replaced.