Wire Harness/Hoses/Pipes, Replacing

Wire Harness/Hoses/Pipes, Replacing

Removal

Preparations
- Remove the heater.
- Remove the fan shroud.

Wiring harness, replacement












- Disconnect all the connectors and the sensor.
- Cut the tie strap.
- Replace the wiring harness.

Replacing the hoses and pipes







- Release the quick-release connectors.
- Remove the hose clamps.
- Replace the hose/pipe.

NOTE: Use Oetiker pincers 3374 to slacken off and secure the Oetiker clamps.

Installation

Bleeding the fuel system
- Connect the fuel line to vacuum pump 998 5876. Suck carefully until fuel comes out. Connect the cables and hoses.

Water pump
- Install in reverse order.

NOTE: Always check that there is clearance between the fuel line and water hose.

Final check

NOTE: Start the engine and let it idle for a few seconds before starting the heater.

- Test run the heater. Check the function of the heater. Check both the coolant hoses and the fuel lines for leakage. Top up the coolant if necessary. Check that no diagnostic trouble codes (DTC) have been stored during the repair work.