Installing Servo Motor For Four-Zone Air Conditioning

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.

Place the servo motor on the upper retainer plate and screw down using the fastening screws. → Tightening torque: 1.5 Nm (1.0 ftlb.)

Fig 1: Installing Servo Motor For Air-Conditioning System
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Connect electric plug connections to the servo motors until the connectors engage securely.
Information
- Switch on ignition and carry out the service position menu, Drive links menu with the Porsche System Tester in the Climatronic.
- As an alternative, the servo motors can also be powered with 12 volts until they have reached the correct position. Always use the circuit diagram for this .
Set the upper servo motors to service position using the PIWIS Tester 9718 . The drive mechanisms must be positioned as shown.

Fig 2: Identifying Upper Servo Motors
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information
- Make sure that the drivers of the servo motors are pushed into the mountings .
Insert upper retainer plate with the servo motors from below as far as it will go into the guides on the air-conditioning unit.
Tighten the two fastening screws -1- . → Tightening torque: 1.5 Nm

Fig 3: Positioning Retainer Plate Fastening Screws
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Place the servo motor on the lower retainer plate and screw down using the fastening screws. → Tightening torque: 1.5 Nm (1.0 ftlb.)

Fig 4: Locating Lower Retainer Plate
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Connect electric plug connections to the servo motors until the connectors engage securely.
Information
- Switch on ignition and carry out the service position menu, Drive links menu with the Porsche System Tester in the Climatronic.
- As an alternative, the servo motors can also be powered with 12 volts until they have reached the correct position. Always use the circuit diagram for this.
Set the lower servo motors to service position using the PIWIS Tester 9718 . The drive mechanisms must be positioned as shown.

Fig 5: Identifying Servo Motor
Courtesy of PORSCHE CARS NORTH AMERICA, INC.

Information
- Make sure that the drivers of the servo motors are pushed into the mountings .
Insert lower retainer plate with the servo motors from below as far as it will go into the guides on the air-conditioning unit.

Fig 6: Installing Lower Retainer Plate To Air-Conditioning Unit
Courtesy of PORSCHE CARS NORTH AMERICA, INC.
Screw in both fastening screws -1- . → Tightening torque: 1.5 Nm
Route electric lines at air-conditioning unit housing. When doing so, make sure the lines are not pinched or damaged by the servo motors.