The dosing pump is a combined supply, dosing and shut-off system to provide the heater with fuel from the car’s fuel tank.
The dosing pump is a combined system of supplying, metering and blocking the fuel supply. When installing it, you must comply with certain requirements.
It is advisable to install a metering pump in a cool place, but (as well as the fuel lines) in no case near the parts of a car that radiates heat - otherwise thermal insulation must be provided! The permissible temperature around the metering pump and the fuel line should not exceed +20 ° C for gasoline and +40 ° C for diesel heaters.
The dosing pump must be mounted on a vibration damping suspension. To provide a good independent air outlet (deaeration). Because of the danger of corrosion, only plug-in connections between the metering pump and its cable harness can be used, which are supplied by Webasto.