Reduce fuel pressure through service valve - AR07.03-P-1460-01TMG

ENGINE 156 

Risk of explosion  caused by fuel igniting, risk of poisoning  caused by inhaling and swallowing fuel and risk of injury  to eyes and skin caused by contact with fuel

No fire, sparks, open flames or smoking. Only pour fuels into suitable and appropriately marked containers. Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

Fig 1: Identifying Pressure Hose (119 589 04 63 00)

Courtesy of MERCEDES-BENZ USA

Fig 2: Removing Protective Cap On Fuel Distributor Service Valve

Courtesy of MERCEDES-BENZ USA

1. Unscrew protective cap (1) on fuel distributor service valve.
2. Insert end of pressure hose (01) into a suitable container.
3. Screw union nut from angled piece (01a) onto service valve.

   At this point, the service valve is opened and the fuel pressure in the fuel distributor is reduced.

   Collect feathering-out fuel in a suitable reservoir (3)

4. Unscrew the union nut of the angled piece (01a) from the service valve.
5. Screw protective cap (1) onto service valve for fuel distributor.