2012 SSANGYONG NEW ACTYON SPORTS brake

01-113680-01
1. OVERVIEW
The six speed automatic (M78) transmission
is available in two variants: four wheel drive
and two wheel drive.
The transmission has the following features:
Six Forward Speeds
One reverse gear
A torque converter with an integral converter lock-up clutch
Electronic shift and pressure controls
A single planetary gear-set
A double planetary gear-set
Two hydraulically controlled brake bands
Three multi-plate clutches
All hydraulic functions are directed by electronic solenoids to control: -
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Engagement feel
Shift feel
Shift scheduling
Modulated torque converter clutch applications ·
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The transmission contains fully synthetic automatic transmission fluid (ATF) and is filled for life;
therefore it does not require periodic servicing.
Engine power reaches the transmission via a torque converter with integral converter lock-up
clutch.
The six forward gears and one reverse gear are obtained from a single planetary set, followed by
a double planetary set. This type of gear-set arrangement is commonly known as Lepelletier type
gear-set.
The automatic transmission is electronically controlled. The control system is comprised of the
following elements:
External transmission control unit (TCU)
Internal embedded memory module (EMM)
Input and output speed sensors
Valve body unit comprised of four on/off solenoid valves and six variable bleed solenoids
Torque converter -
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01-14
3. MODE DESCRIPTIONS
1) Functions
Tip Switch in “M” Position (Manual Gear
Shift) (5)
The shiftable gear can be adjusted by
moving this switch to forward and
rearward when the gear select lever is in
“M” position. 5.Shift Lock Release Button Hole when Locked in the "P" Position (1)
If you cannot move the gear select lever from the "P" position, try to move the lever while
pushing down here with a sharp object such as a ballpoint pen. For your safety, turn off
the engine and depress the brake pedal before the attempt. 1.
Gear Position (4)
P :
R :
N :
D : 4.Mode Switch (3)
W :
S : 3.Selection of Manual/Automatic Shift Function (M↔D) (2)
D :
M : 2.
Automatic shift according to the driving condition
Manual shift
Winter mode (Start off the vehicle in 2nd gear)
Standard mode (Use the standard mode in normal driving conditions.)
Park
Reverse
Neutral
Drive

01-22
Winter Mode (W) ▶
Low Range Driving Mode ▶
Warm Up Mode ▶ When the Winter mode is selected, the second gear is engaged to start off the vehicle easily to
prevent wheel spin on slippery surfaces and WINTER mode indicator comes ON. The first gear is
not available in this mode.
When the vehicle is in 4L driving mode, the transmission uses a different shift mode to optimize
the low range driving. Similar to Winter mode, the first gear is not available.
This mode is normally used when the transmission oil temperature is below 20°C.
<007b008f008c0047009b009600990098009c008c0047008a00960095009d008c0099009b008c00990047008a0088009500950096009b00470089008c004700930096008a0092008c008b0054009c009700470089008c00930096009e00470059005700b600
6a0047009b00960047009700990096009d0090008b008c0047>the warming up process of
transmission.
Hot Mode ▶
<0070008d0047009b008f008c0047009b009900880095009a00940090009a009a00900096009500470096009000930047009b008c00940097008c00990088009b009c0099008c00470090009a00470089008c009b009e008c008c0095004700580058005700
b6006a004700880095008b00470058005b005c00b6006a0053> the system provides the cooling
and reduces the load to the transmission. This is called Hot Mode.
Above 110°C:
Above 130°C:
Above 145°C: -
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In Hot Mode, any of shift mode is not available.
Cruise Control ▶
When the cruise control is activated, the engine ECU requests the downshift to increase the
engine brake effect.PWM fan ON
the engine torque is reduced and WINTER indicator is blinking
the transmission is held in Neutral (N) gear until the oil temperature falls
below 120°C (Final protection)

07-53240-01
Operation ▶
Description Mode Conditions
Driving
mode2H 2 Wheel drive
(rear wheel)Rear-wheel drive mode. This is used under
normal or high-speed driving conditions on
public roads or highways.
4H 4 Wheel drive
(high speed)This is used under sandy, muddy or snow-
covered road conditions
4L 4 Wheel drive
(low speed)This is used for maximum traction.
When cornering with low speed in 4WD
condition, there could be tire dragging, some
mechanical shocks and resistances in
vehicle’s drive train. These are normal
conditions due to internal resistance in the
drive train when the 4WD system is properly
working
Mode change2H←4H2 Wheel drive
↔4 Wheel driveShifting is possible while driving at the speed
of 70 km/h or less
2H,
4H↔4L2 Wheel drive,
4 Wheel drive (high
speed)
↔4 Wheel drive
(low speed)For Automatic Transmission:
For Manual Transmission:
Stop the vehicle on level ground and
move the gear selector lever into the
“N” position. Turn the switch to the
desired position. ·
Stop the vehicle on level ground and
move the gear selector lever into the
“N” position. Then turn the switch to
the desired position while depressing
the clutch pedal. ·
To make the mode change easily, stop
the vehicle on level ground and turn the
mode switch to the desired position and
move the shift lever to "N"-"R"-"N" while
depressing the brake pedal.

09-34850-01
1. SPECIFICATION
Unit Description Specification
Front brake Type Ventilated disc
Outer diameter of discØ294 mm
Inner diameter of caliper cylinderØ43.0 x 2 mm
Thickness of disc 28 mm (wear limit: 25.4 mm)
Area of brake pad Above 60 cm2
Pad wear indicator Mechanical type
Rear brake Type Solid disc
Outer diameter of discØ299 m
Thickness of disc 10.4 mm (wear limit: 8.5 mm)
Area of brake pad Above 28.8 cm2
Pad wear indicator Mechanical type
Brake booster Type Vacuum assist type
Size8” + 9” (Tandem)
Master cylinder Type Tandem type(integrated level sensor)
Inner diameter of cylinderØ26.99 mm
Brake pedal Maximum operating stroke 150 mm
Pedal ratio 4 : 1
Free play 3 to 10 mm
Parking brake Type Mechanically expanded rear lining
Operating type Hand operated type
Inner diameter of drumØ190 mm
Brake oil Specification DOT 4
Capacity 0.7 to 0.8 liters
Service Interval: Change the brake oil at every 2 years
DOT?
It is the quality grade of brake fluid established by US Department of Transportation.

09-4
2. SYSTEM OVERVIEW
1) Terms and Definition
CBS: Conventional Brake System
ABS: Anti-Lock Brake System
EBD: Electronic brake-Force Distribution
ESP: Electronic Stability Program
ABD: Automatic Braking Differential
ASR: Acceleration Slip Regulation
AYC: Active Yaw Control (Understeer and Oversteer Control)
HBA: Hydraulic Brake Assistant
ARP: Active Rollover Protection
HSA: Hill Start Assistant
Brake pad: Brake pad is a component of disk brakes used in automotive and other
applications. Brake pad is steel backing plates with friction material bound to the surface that
faces the brake disc.
Brake disc: The brake disc is a device for slowing or stopping the rotation of a wheel while it is
in motion.
Brake caliper: To stop the wheel, friction material in the form of brake pads (mounted on a
device called a brake caliper) is forced hydraulically against both sides of the disc. Friction
causes the disc and attached wheel to slow or stop.
Brake master cylinder: The brake master cylinder is a control device that converts non-
hydraulic pressure (commonly from a driver's foot) into hydraulic pressure, in order to move
other device(s) which are located at the other end of the hydraulic system, such as one or
more slave cylinders. As piston(s) move along the bore of the master cylinder, this movement
is transferred through the hydraulic fluid, to result in a movement of the slave cylinder(s). The
hydraulic pressure created by moving a piston (inside the bore of the master cylinder) toward
the slave cylinder(s) compresses the fluid evenly, but by varying the comparative surface-area
of the master cylinder and/or each slave cylinder, one will vary the amount of force and
displacement applied to each slave cylinder (relative to the amount of force and displacement
that was applied to the master cylinder). -
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FunctionVehicle with CBS
Vehicle with ABS/EBD Vehicle with ESP
ABS
Not appliedApplied
Applied EBD Applied
ABD
Not applied ASR
AYC
HBA
ARP
2) Functions

09-74850-01
Problem Possible Cause Action
Noise or vehicle
vibration when
appliedIncorrectly mounted back plate or caliper Repair
Loosened bolt of back plate or caliper Retighten
Uneven wear of brake disc Replace
Brake pad contamination Clean or replace
Sticking brake pad on contact surface Replace
Wear or hardening of brake pad Replace
Excessive clearance between caliper and pad Repair
Uneven contact of pad Repair
Lack of lubrication in sliding parts Lubricate
Improper operation of caliper Replace
Dust cover missing Repair
Loosened suspension mounting bolt Retighten
Pulls to one side
when brakingUnbalanced tire pressure between left and right Adjust
Poor contact of brake pad Repair
Oil or grease on brake pad Replace
Scratch, uneven wear, distortion of brake disc Replace
Improperly installed brake caliper Repair
Improper operation of auto adjuster Repair
Crack or distortion of brake pad Replace
Poor braking Oil leak or contamination Repair or replace
Air in brake line Bleed air
Improper operation of brake booster Repair
Poor contact of brake pad Repair
Oil or grease on brake pad Replace
Improper operation of auto adjuster Repair
Clogged brake line Repair
Improper operation of proportioning valve Repair
3. TROUBLESHOOTING

09-8
Problem Possible Cause Action
Increased pedal stroke Air in brake line Bleed air
Oil leak Repair
Worn brake pad Replace
Excessive clearance between push rod and master
cylinderAdjust
Worn or damaged piston seal Replace
Brake dragging Parking brake is not fully released Release
Incorrect adjustment of parking brake Adjust
Incorrectly adjusted clearance of parking brake
shoeAdjust
Faulty brake pedal return spring Replace
Incorrectly adjusted free play of brake pedal Adjust
Faulty master cylinder Replace
Lack of lubrication in sliding parts Lubricate
Faulty brake booster (vacuum leak) Repair
Wear, hardening or poor contact of brake pad Replace
Oil or water on lining Repair or replace
Fixed or broken parking brake cable Replace
Excessive stroke of brake lever Adjust notch
Faulty auto clearance adjuster Repair
Poor parking
brake
Increased stroke of
parking brake leverLoosened parking brake cable Adjust or replace
Incorrectly adjusted parking brake cable Adjus
Defective automatic lining clearance adjuster Repair or replace
Worn brake lining Replace