Instructions for carrying out general repairs on vehicles with auxiliary heating

WARNING: This page is about a different car, the 2018 Porsche Macan and 2017 Porsche Macan. However, it is still accessible from the selected car via links, so may be relevant.

Information

Perform on-board diagnosis of the auxiliary heating system using the vehicle diagnostic tester .
If parts of the fuel system were removed or replaced, make sure that all components for extracting fuel for the auxiliary heating system are installed properly .
To avoid confusing the coolant hoses, mark them before removal .

Following repair work near the fuel line for the auxiliary heating system, check the following points:

Check that the fuel lines are routed flush with the underbody and are protected from mechanical damage .
Check that the fuel line for the auxiliary heating system is protected against high temperatures that could cause malfunctions .
Check that the fuel line is not touching any hot components .