Land Rover Discovery: Rear Drive Axle- differential - Vehicles without- Active Driveline/ Description and Operation
COMPONENT LOCATION - VEHICLES WITHOUT ACTIVE DRIVELINE
.jpg)
- 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:
Rear end Sheet Metal
Repairs Rear
Bumper Mounting
Upper (G1780738) / Removal
and Installation
REMOVAL
NOTE:
The rear bumper mounting upper is installed in conjunction with:
Rear bumper cover
Rear bumper
Rear lamp assembly
Rear lamp panel outer
Back panel outer
The rear bumper mounting upper is serviced as indicated.
Before commencing this procedure make sure that you are aware of
General Installation Instructions
COMPONENT REMOVAL
Whenever possible, clean components and the surrounding area before
removal.
Blank off openings exposed by component removal.
Following disconnection, seal fuel, oil or hydraulic lines immediately
using
suitable blanking plugs or caps.
Seal open ends of exposed oilways using
