Bleeding Vehicles With Auxiliary Heater

WARNING: This page is about a different car, the 2010 Porsche Cayenne, 2009 Porsche Cayenne, and 2008 Porsche Cayenne. However, it is still accessible from the selected car via links, so may be relevant.

Fill and bleed the vehicle as described in → 193817 DRAINING AND FILLING COOLANT (INCLUDES BLEEDING)
Warm engine to operating temperature (= 90 °C).
Information
- Do not activate the 2/3 directional-control valve with the Porsche System Tester above 1500 rpm.
- Activate the 2/3 directional-control valve with the Porsche System Tester below 1500 rpm.
Operate engine for 5 minutes with changing engine speeds. When doing this, run the engine for 10 seconds in idle and then for 10 seconds at 4, 000 rpm. In the speed transition from higher engine speeds (1500 to 4000 rpm) to idle (approx. 600), the directional-control valve should be activated with the Porsche System Tester below 1500 rpm. Note that the 2/3 directional-control valve is not activated with the Porsche System Tester above 1500 rpm.
Let the vehicle cool down.
Open maintenance cover.

Fig 1: Removing Maintenance Cover
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Carefully open the lid on the coolant reservoir. Unscrew the lid by turning it anticlockwise.

Fig 2: Identifying Lid On Coolant Reservoir
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Check coolant level and, if necessary, fill the coolant reservoir with coolant to the MAX marking.

Fig 3: Identifying MAX Marking On Coolant Reservoir
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Screw on lid on reservoir.

Fig 4: Identifying Lid On Reservoir
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Close the maintenance cover.