Land Rover Defender manuals

Land Rover Defender: Component Location, Overview

COMPONENT LOCATION

COMPONENT LOCATION - 1 OF 2

Transmission Description

  1. Transmission Control Switch (TCS)

COMPONENT LOCATION - 2 OF 2

Transmission Description

  1. Automatic Transmission Fluid (ATF) cooler
  2. Automatic Transmission Fluid (ATF) cooler pipes
  3. Emergency Park Release (EPR) lever
  4. Automatic transmission

OVERVIEW

The 8HP45 transmission is an electronically controlled, hydraulically operated, 8 speed automatic unit.

A single unit known as the Mechatronic valve block is located inside the transmission. The Mechatronic valve block contains the following control components:

The 8HP45 is a smaller version of the 8HP70 automatic transmission, with the same power flow and control strategies. The 8HP70 transmission is specified for high power and high torque applications. The 8HP45 transmission is optimized for efficiency and weight with a saving of 5 kg over the 8HP70. The 8HP45 is specified for lower torque and power capacity applications.

The 8HP45 transmission has the following features:

The transmission selections are made using the Transmission Control Switch (TCS).

On vehicles featured with the stop/start system, the 8HP45 automatic transmission is equipped with a Hydraulic Impulse Storage (HIS) device. The HIS makes sure pressurized Automatic Transmission Fluid (ATF) is available to the shift elements as quickly as possible when the engine is started.

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 Description

TRANSMISSION The transmission comprises the main casing which houses all of the transmission components. The main casing also incorporates an integral torque converter housing. A fluid pan is attache

 Operation

POWER FLOWS Operation of the transmission is controlled by the Transmission Control Module (TCM), which electrically activates various solenoids to control the transmission gear selection. The sequen

 Transmission Description - Vehicles With: 8HP70 8-Speed Automatic Transmission AWD

SEE MORE:

 Front Wheel Bearing

Front Wheel Bearing - Vehicles With: 380mm Brake Disc REMOVAL AND INSTALLATION SPECIAL TOOL(S) 204-250 Wheel bearing install and removal tool 204-305 Remover, Wheel Bearing 204-726 Remover/Installer, Wheel Bearing JLR-204-807 Installer, Front Wheel Bearing JLR-204-808 Installer, Front Wheel Bea

 Air Conditioning

DESCRIPTION AND OPERATION COMPONENT LOCATION COMPONENT LOCATION - 1 OF 2 - VEHICLES WITH AUXILIARY CLIMATE CONTROL Auxiliary evaporator Auxiliary climate control isolation valve and Thermostatic Expansion Valve (TXV) TXV High Pressure (HP) pipe Internal Heat Exchanger (IHX) Low Pressure (L

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