Contents: Removal ↓ Installation ↓
Instructions: The dosing pump "V54" for a diesel heater has a gray plastic housing, and for a gasoline heater - a black housing. Fuel shut-off valve "N109" (in the additional heater) prevents fuel from entering the combustion chamber after the auxiliary heater has been switched off. In order to be able to relieve pressure in the fuel line in the section between the fuel shut-off valve "N109" and the metering pump "V54", a bypass channel is made in the metering pump "V54". Install units with the corresponding number. The metering pump "V54" is supplied by the spare parts service only as a complete set with the parts and units installed on it. To remove the metering pump "V54", it is sufficient to slightly lower the fuel tank using the jack for engines and transmission units -VAG 1383 A-.
Removal
Disconnect connector "1" of fuel level sensor "G".
CAUTION: Danger! Fuel leakage! The fuel in the fuel system is under pressure.
Disconnect the fuel hose at the quick-release fitting "4". Remove the wires from the holders. Disconnect the bracket "2" of the metering pump "V54" "3" from the fuel tank. Loosen the lower clamp of the fuel pipe coupling "5" on the fuel level sensor "G" and remove the fuel pipe from the fuel level sensor fitting.
Installation
Instructions: The "V54" metering pump for a diesel heater has a gray plastic housing, and for a gasoline heater - a black housing. Remove the transport plugs before installation. Replace the clamping clamps with screw clamps.
Push the fuel pipe "5" into the fuel level sensor nipple "G" until the coupling stops on the nipple. Ensure the correct installation position of the metering pump "V54". Install the bracket "2" for fastening the metering pump "V54" "3" on the fuel tank. Connect the fuel hose to the quick-release nipple "4". Connect the connector "1". Ensure the sealing of the adapter sleeve of the wiring harness. Raise the fuel tank and secure it to the vehicle.
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