Land Rover Discovery: Rear Drive Axle- differential - Vehicles without- Active Driveline/ Description and Operation
COMPONENT LOCATION - VEHICLES WITHOUT ACTIVE DRIVELINE
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- Active on-demand coupling
- Rear differential
OVERVIEW
Vehicles without the active driveline system have a conventional mechanical rear differential. The rear differential has an integrated active on-demand coupling located on the driveshaft axis.
The rear differential operates in conjunction with the active on-demand coupling to provide controlled torque to the rear halfshafts. Torque is supplied to the active on-demand coupling and the rear differential from the Power Transfer Unit (PTU).
For additional information, refer to: Four-Wheel Drive Systems (308-07B Four-Wheel Drive Systems - Vehicles Without: Active Driveline, Description and Operation).
The torque is controlled by the electro-hydraulic active on-demand coupling.
The full time intelligent system continuously varies the front and rear torque split to provide variable All Wheel Drive (AWD) torque when required.
The active on-demand coupling is mounted on the rear differential, between the rear differential and the driveshaft. The active on-demand coupling is a self-contained unit combining mechanical, hydraulic and electronic functions to distribute torque between the front and rear halfshafts with fully automatic control.
DESCRIPTION
Rear Drive Axle-
Differential - Vehicles without - Active Driveline
Drive
Pinion Seal (G1775382)
/ Removal and InstallationRear Differential
READ NEXT:
Rear Differential
Rear Differential Section View
Active on-demand coupling
Pinion shaft
Taper roller bearings
Pinion gear
Side gear - right halfshaft
Pinion gear
Crosspin shaft
Differential carrier
Angular
Active on-demand Coupling
Clutch assembly
Pressure relief/air bleed valve
Casing
Driveshaft flange
Electric motor and pump assembly
Active on-demand coupling control module
Pump housing
Electrical connectors
The ac
Rear Drive Axle-
Differential - Vehicles without- Active Driveline/
Diagnosis
and Testing
PRINCIPLES OF OPERATION
For a detailed description of the Rear Differential, refer to the relevant
Description and Operation section in the workshop manual. REFER to: Rear
Drive Axle and Differential
SEE MORE:
Before starting or driving
If the vehicle is involved in a
collision, it should be checked by
a Retailer/Authorised repairer, or
suitably qualified personnel,
before starting or driving.
Note: The vehicle has an SOS Emergency
call button and a Breakdown call button.
AFTER DEPLOYMENT OF THE
PEDESTRIAN PROTECTION
SYSTEM
Do not
Engine - Ingenium i4 2.0l Diesel Valve Cover (G1875874) / Installation
Installation
All vehicles
NOTE:
If a new valve cover is installed, new locating dowels must
installed.
Torque: 47 Nm
CAUTION:
Install a new seal.
Renew Part: Oil fill pipe O-ring seal.
Torque: 12 Nm
CAUTION:
Install and finger tighten bolts before final tightening in
sequence illustrated.
NOTE
