Temperature / Pressure Sensor Active On Demand Coupling (AOC), Replacing

Temperature / pressure sensor active on demand coupling (AOC), replacing

Note! As the illustrations in this service information are used for different model years and / or models, some variation may occur. However, the essential information is always correct.

Removal

Preparatory work
Ignition off
Wait 3-4 minutes after switching the ignition off to reduce oil leakage at removal.

Removing the Differential electronic module (DEM)





Caution! Clean the area around the control module thoroughly before beginning removal.

Place a container under the active on demand coupling (AOC). Disconnect the connectors to the control module and the oil pump.

Remove:
- the 2 x screws for the control module
- the control module together with the seal plate and the cupped washer.

Removing the components from the Active on Demand Coupling (AOC)




Remove the throttle valve and temperature/pressure sensor from the coupling.
A = Throttle valve.
B = Temperature / pressure sensor.
To remove, use large pliers. Grasp the end of the throttle valve, hold the pliers steady and pull the valve straight out.

Caution! Make sure that no damage is caused when removing the throttle valve. The valve cannot be replaced separately. The throttle valve is removed in order to be installed in the control module. This is done to minimize the risk of damage occurring to the contacts when installing.

Remove:
- temperature-/pressure sensor as above
- The O-ring from the throttle valve seat in the coupling housing.

Installation

Note! For tightening torques, see: Service and Repair

Components which are included in the kit and must be replaced




Temperature-/pressure sensor with O-ring.
Washer.
O-ring for the throttle valve seat.

Installing the included components





Install:
- Differential electronic module (DEM)
- the seal plate
- the washer
- the throttle plate with the O-rings
- temperature-/pressure sensor with the O-rings
- the screws.
The O-ring for the throttle valve seat is installed separately.

Placing the sealing plate in the control module




Place the sealing plate in the control module
Press the throttle valve and the temperature-/pressure sensor into place on the control module connector. Place the cupped washer with the convex side against the temperature-/pressure sensor.
Lubricate the sealing rings on the valves. Use oil.

Installing the O-ring




Carefully check that the control module sealing surface and the valve seats in the Active on Demand Coupling (AOC) are clean, there must be no residue left from cloths or paper.
Lubricate the new O-ring using oil and securely press into its seat.

Installing the Active on Demand Coupling (AOC)




Install the control module with the valves for the coupling, hold it pressed against the coupling housing while installing the 2 x screws. Lightly tighten alternately.




Tighten, see: Service and Repair
Connect the connectors for the control module and the oil pump.
Top up and check the oil level in the active on demand coupling (AOC).
Erase any diagnostic trouble codes (DTCs).