SsangYong Korando III (2010 year). Manual — part 229

07-4

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

07-5

0000-00

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

08-3

0000-00

System

Description

Specification

Front
suspension

Suspension type

Macperson strut type

Spring type

Coil spring

Stabilizer type

Torsion bar type

Shock absorber

Type

Cylindrical reciprocation type

Max. length (extended)

554 mm

Min. length
(compressed)

372 mm

Min. length
(compressed)

Inner diameter (A)

Upper: 84.0 mm

Lower: 100.0 mm

Outer diameter (B)

163.1 mm

Free length (C)

356.1 mm

Installed length (D)

276.0 mm

Coil windings

5.32 turns

Winding direction

Right direction

Rear
suspension

Driving type

AWD

2WD

Suspension type (trailing, upper, lower & track
rod)

Multi-link type

←

Spring type

Coil spring

←

Stabilizer type

Torsion bar type

←

Shock absorber

Type

Cylindrical

reciprocation type

←

Max. length (extended)

551 mm

←

Min. length
(compressed)

361 mm

←

Coil spring

Diameter (A)

12.8 mm

12.6 mm

Free length (B)

287.1 mm

291.7 mm

Coil windings

6.64 turns

6.32

Winding direction

Right direction

←

1. SPECIFICATION

08-4

1) Wheel Alignment

System

Description

Specification

Front

Ground clearance (A)

76.8 ± 5 mm

Trim height : wheel
center ↔ Wheel
house

433 mm

Camber (maintenance
free)

-0.15 ± 0.5˚

Caster (maintenance
free)

4.8 ± 0.5˚

Total toe-in

0.0 ± 0.1˚

(adjust by tie rod)

King pin angle

12.85˚

Rear

Ground clearance (A)

63.3 ± 5 mm

Trim height : wheel
center ↔ Wheel
house

437 mm

Camber (maintenance
free)

-0.5 ± 0.5˚

[ adjust by cam bolt on

upper arm ]

Total toe-in

0.0 ± 0.1˚

[ adjust by cam bolt on

track rod ]