This function is used to activate the fuel pump and in this way refill the fuel line after repair of the heater unit. This function may also need to be run to erase certain error codes for filling of the line.
Note:
Keep cleanliness, care, and safety in mind when working on open fuel circuits.
Test conditions:
Coolant temperature lower than 30°C.
Ambient temperature lower than 25°C.
At least 1/4 tank volume.
Battery voltage above 12V.
No faults stored in instrument or climate control unit.
Fuel line disconnected from heater.
Procedure:
Connect the disconnected fuel line to a container.
Start the function.
Test conditions are checked.
Press "OK" to activate the fuel pump.
Now the fuel pump is activated for 30 seconds.
Activation cannot be cancelled once it has started.
When activation is done, press "OK" to exit the function.
Reconnect the fuel line to the heater unit.