SsangYong Korando III (2010 year). Service manual — part 542

08-9

0000-00

2) Rear Suspension (Multi-link Type)

Multi-link type suspension is the independent suspension. It provides good ride comfort and drivability by

reducing the coil spring weight. Also, it increases the space for passenger compartment by lowering the

floor.

This type of suspension consists of multiple links such as trailing arm, upper arm, lower arm and track

rod.

Layout

09-3

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1. SPECIFICATION

Unit

Description

Specification

PTU
(Power Transfer Unit)

Gear ratio

2.929

Numbers of helical gear

22/39

Numbers of hypoid gear

23/38

Oil

IDEMITSU LW 80W/90

Oil capacity

≒ 0.58 L

Operating temperature

-40 to 150°C

E-coupling

Maximum torque

1,000 Nm

Operating temperature

-40 to 120°C

Numbers of main clutch

Outer: 11, Inner: 11

Numbers of pilot clutch

Outer: 4, Inner: 3

Coil windings

240 turns

Weight

8 kg

Oil

ECF107 (ATF based EMCD special oil)

Oil capacity

0.145 L (145 ml)

09-4

1. OVERVIEW

The AWD system in this vehicle is the electronic 4WD system and controls the traction to rear wheels

according to the driving conditions.

1) Driving Mode

(1) AUTO mode (Normal driving mode)

Normally the vehicle is in 2WD mode.

Automatically change to this mode when the vehicle needs higher traction.

(2) LOCK mode (when pressing 4WD LOCK switch)

This mode provides the highest traction. Use

this mode when driving on unpaved, rugged,

steep, sandy, wet or slippery roads.

In 4WD LOCK mode, if the rear wheel speed

exceeds 40 km/h, 4WD LOCK mode is

canceled and 4WD AUTO mode is activated

(Indicator OFF). If the speed is decreased

below 35 km/h, 4WD LOCK mode is resumed

(Indicator ON again).

-

-

Mode table

▶

4WD LOCK switch

Vehicle speed

Driving mode

Not pressed (4WD AUTO)

No conditions

4WD AUTO

Pressed (4WD LOCK)

over 40 km/h

4WD AUTO

Pressed (4WD LOCK)

below 35 km/h

4WD LOCK

09-5

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2. SYSTEM LAYOUT

1) Components

(1) PTU (Power Transfer Unit)

The power transfer unit in the front wheel drive model changes the angle of engine torque to 90°

and transfer it to E-coupling to distribute the torque to rear wheels.

(2) E-Coupling (Electronic Coupling)

E-Coupling transfer the engine torque from PTU to rear axle and controls to distribute it between front

wheels and rear wheels.

(3) E-Coupling Control Unit (ECU)

E-Coupling controls the current (clutch engagement force) of EMCD in E-Coupling according to CAN

signals (wheel speed, engine torque, pedal position, ABS/ESP signals).

* EMCD: Electro-Magnetic Control Device

PTU assembly

E-coupling control unit

(located on the floor under driver seat)

E-coupling