Land Rover Discovery Owners & Service Manuals

Land Rover Discovery: Rear Drive Axle- differential - Vehicles without- Active Driveline/  Description and Operation

Land Rover Discovery (2009–2016) Service Manual / Chassis / Chassis-Driveline / Rear Drive Axle- differential - Vehicles without- Active Driveline/  Description and Operation

COMPONENT LOCATION - VEHICLES WITHOUT ACTIVE DRIVELINE

COMPONENT LOCATION - VEHICLES WITHOUT ACTIVE DRIVELINE

  1. Active on-demand coupling
  2. 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

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

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