Land Rover Discovery Owners & Service Manuals

Land Rover Discovery: Rear Drive Axle - Differential - Vehicles with - Active Driveline Differential Case (G1781298) - Removal

Land Rover Discovery (2009–2016) Service Manual / Chassis / Chassis-Driveline / Rear Drive Axle- Differential - Vehicles with - Active Driveline Differential Case (G1781298) / Rear Drive Axle - Differential - Vehicles with - Active Driveline Differential Case (G1781298) - Removal

REMOVAL

CAUTION:

Before disconnecting any components, make sure the area is clean and free from foreign material. When disconnected all openings must be sealed.

NOTES:

  • This procedure contains some variation in the illustrations depending on the vehicle specification, but the essential information is always correct.
  • This procedure contains illustrations showing certain components removed to provide extra clarity.

All vehicles

  1. Disconnect the startup battery ground cable.

    Refer to: Specifications (414-01 Battery, Mounting and Cables, Specifications).

  2. Raise and support the vehicle on a suitable 2 post ramp.

    Refer to: Lifting (100-02 Jacking and Lifting, Description and Operation).

NOTE:

Before disconnecting any components of the active driveline hydraulic system, the two pipe port closing valve must be closed manually as illustrated.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Close the port valves.

Vehicles with petrol engine

Remove the exhaust system.

Refer to: Rear Silencer (309-00C Exhaust System - INGENIUM I4 2.0L Diesel, Removal and Installation).

Vehicles with diesel engine

Remove the rear silencer.

Refer to: Rear Silencer (309-00C Exhaust System - INGENIUM I4 2.0L Diesel, Removal and Installation).

All vehicles

Remove the rear halfshafts.

Refer to: Rear Left Halfshaft (205-05 Rear Drive Halfshafts, Removal and Installation).

Refer to: Rear Right Halfshaft (205-05 Rear Drive Halfshafts, Removal and Installation).

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Remove the Rear Drive Unit (RDU) to Power Transfer Unit (PTU) hydraulic pipe support bracket.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Remove the heatshield.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Disconnect the electrical connector.

CAUTION:

Be prepared to collect escaping fluids.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Disconnect the PTU hydraulic fluid feed pipes.

CAUTION:

Make sure the openings are sealed.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Remove the pipe unions.

CAUTION:

To avoid damage to the joint or gaiter, do not allow the driveshaft to hang.

NOTE:

Mark the position of the driveshaft flange in relation to the drive pinion flange damper.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Remove and discard the driveshaft retaining bolts and washers.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Position a suitable transmission jack to support the differential case.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Remove the RDU retaining bolts.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Remove the RDU support bracket.

Disconnect the rear driveshaft from the rear differential.

Refer to: Driveshaft to Rear Differential Disconnection (205-00 Driveline System - General Information, General Procedures).

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Remove the RDU retaining bolts.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Disconnect the RDU breather.

NOTE:

Do not disassemble further if the component is removed for access only.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

Disconnect the electrical connector.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

  1. Remove the bolt.
  2. Disconnect the electrical connector
  3. Remove the RDU wiring harness.

Rear drive axle_differential - vehicles with- active driveline differential case (G1781298) - Removal

  1. Remove the RDU Electronic Control Module (ECM) retaining bolts.
  2. Remove the RDU ECM.

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