Webasto Thermo Top BlueHeat Manual page 22

Locate grommet in the engine compartment that is
installed in the top of the channel and remove it. Bore a
hole in the grommet large enough to fit the fuel line and
the fuel pump harness.
Route mecanyl fuel line through the grommet towards
the front of the vehicle. Install protective loom on fuel
line.
– (1) Vehicle AC line
– (2) Grommet
– (3) Mecanyl fuel line
– (4) Protective loom
Route the mecanyl fuel line across the front of the vehicle
to the heater mounting location.
Secure fuel line to existing vehicle components with nylon
cable ties.
– (1) Front fascia support
– (2) Nylon cable tie
– (3) Mecanyl fuel line
ATTENTION
Ensure the fuel lines are fully seated within the fuel line
connectors.
Tighten all fuel line clamps to 1.0 - 1.4 Nm (8.8 - 12.4
lb.-in.)
Connect fuel line to heater with fuel line connector and
two clamps.
– (1) Mecanyl fuel line with protective loom
– (2) Fuel line clamp - 2ea.
– (3) Fuel line connector
Route the fuel pump electrical harness to the fuel pump
following the mecanyl fuel line.
Secure electrical harness to the vehicle with nylon wire
ties.
Install the fuel pump harness electrical connector
following the instructions provided and connect to the
fuel pump.
– (1) Fuel pump electrical harness
– (2) Mecanyl fuel line
– (3) Fuel pump electrical connector
– (4) Fuel pump
1
22
VW Passat
2
3
2 1
3
4
Fig. 46
Fig. 47
1
2
3
Fig. 48
1
2
3
4
Fig. 49