Active On-Demand Coupling Oil Pump

Active On-Demand Coupling Oil Pump

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.

Preparatory work

Removing the propeller shaft and flange

Remove:
- the propeller shaft from the flange. See: Propeller shaft Propeller Shaft
- the flange. See: Drive flange final drive Drive Flange Final Drive

Removal

Removing the oil pump




Ignition off.

Note! Thoroughly clean around the oil pump before beginning removal.

Position a container underneath the Active on Demand Coupling.

Remove:
- the connector from the differential electronic module (DEM) for the oil pump for the Active on Demand Coupling
- the cable harness mountings.
Remove the 2 screws for the oil pump. Pull the pump straight out from the Active on Demand Coupling.

Note! Later versions of the oil pump have the socket for the cable harness on the side of the oil pump's housing. The cable harness is shorter.

Installation

Note! For tightening torques, see Specifications. Tightening Torque

Installing the oil pump




Thoroughly check that the oil pump seat in the Active on Demand Coupling is clean. There must not be any lint from paper or cloths.




Check that the new O-rings are in position.
Lubricate the new seal. Use oil for the Active on Demand Coupling, P/N 116 1641 (1 liter pack).




Install the oil pump.
Press the pump in as far as possible. Lightly tighten the 2 M5 screws alternately.
Tighten, see: Tightening torque Tightening Torque.
Connect the connector.

Finishing

Installing the flange and propeller shaft

Install:
- the flange. See: Drive flange final drive Drive Flange Final Drive
- the propeller shaft on the flange. See: Propeller shaft Propeller Shaft
Fill the AOC (Active on Demand Coupling) with oil. Check the oil level. See: Final drive Final Drive.