Brake system SSANGYONG TURISMO 2013 User Guide

08-4
2. CHANGES IN BRAKE SYSTEM
Rear brake hose assembly ▶
With ABS
With ESP
Rear brake hose routing changed due to change of rear sub frame assembly

08-8
Problem Cause Action
Burning smell
around tireToo frequent braking in high driving speed Reduce the use of
foot brake/use
engine brake
properly Use only foot brake during downhill driving
Driving with foot on brake pedal Get off the foot from
pedal
Foreign materials such as dirt or sand in brake system Replace: caliper,
wheel cylinder,
master cylinder,
return spring
Broken return spring in shoe assembly Replace
Incorrectly adjusted parking brake cable Adjust
Incorrect wheel or wheel cover
(generating the heat)Replace

08-94850-03
Measure the disc thickness at over four
points.
If any of measured points is below the wear
limit, replace the brake disc with new one. 1.
2.
Clean the dissembled components and visually check the followings:
- Wear, rust and damage on the cylinder and piston
- Damage, crack and wear on cylinder body and guide pin
- Uneven wear and oil contamination on pad
- Damage and tear on boot
- Scratch and bending on disc plate
▶Pad Thickness
Remove the front tire.
Measure the pad thickness and replace it if it
is below the wear limit. 1.
2.
New pad Wear limit
28.0 mm 25.4 mm
▶Brake Disc Thickness
New pad Wear limit
10.5 mm 2 mm
5. INSPECTION
1) Front Brake System
Replace the brake pads at both sides as a
set.

08-114850-03
Clean the dissembled components and visually check the followings:
- Wear, rust and damage on the cylinder and piston
- Damage, crack and wear on cylinder body and guide pin
- Uneven wear and oil contamination on pad
- Damage and tear on boot
- Scratch and bending on disc plate
Remove the rear tire.
Measure the pad thickness and replace it if it
is below the wear limit. 1.
2.
New pad Wear limit
20.0 mm 18.4 mm
Replace the brake pads at both sides as a
set.
Measure the disc thickness at over ten
points.
If any of measured points is below the wear
limit, replace the brake disc with new one. 1.
2.
New pad Wear limit
10 mm 2 mm
2) Rear Brake System
Pad Thickness ▶
Brake Disc Thickness ▶

08-12
Let the engine run for 1 to 2 minutes and
stop it. If the brake pedal stroke is shortened
as pumping the brake pedal, the system is
normal. If not, the system is defective. 1.
Depress the brake pedal several times with
engine off. If the brake goes down when
starting engine with pedal depressed, the
system is normal. If not, the system is
defective. 2.
If the above three checks are OK, the system is
normal. If any condition is not met, check the
valve, vacuum hose and brake booster.
3) Brake Booster
OK
NG
Engine stopped
Engine running
Depress the brake pedal when the engine is
running. If the pedal height is not changed
for 30 seconds after stopping the engine, the
system is normal. If not, the system is
defective. 3.

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1) Front Brake
The front brake system uses the ventilated disc and double piston caliper.
Caliper carrier
Pad spring
Brake pad
Bolt-caliper
Brake disc
CaliperPiston
Brake hose
Caliper assemblyBrake discBrake pad

09-54891-01
2. FUNCTION
1) Term Definition
ABS: Anti-Lock Brake System ▶
When the brake pedal is abruptly depressed, the HECU calculates the slip ratio of each wheel based
on information received from the wheel speed sensors and controls the hydraulic module data quickly
and precisely in order to maintain the friction between the road surface and tire optimal (static friction).
Therefore, by keeping the friction between the road surface and tire optimal, it is possible to obtain
following effects: Enhanced steering stability, improved direction stability, reduced stopping distance
and etc.
EBD: Electronic brake-Force Distribution ▶
This is to detect the tire speed from the wheel speed sensor in order to supply the braking pressure to
the rear tires individually. In other words, the HECU measures the tire deceleration speed continuously
and controls the rear inlet valve on the hydraulic modulator to obtain optimal braking force as much as
possible. Thereby, stopping distance, braking effect and straight stability are improved.
ESP: Electronic Stability Program ▶
This is used to make the vehicle stabilized to recognize the emergency driving conditions, and to
control the brake for each wheels and the engine power when the brake system or acceleration will not
work any more in dangerous circumstances.
TCS: Traction Control System ▶
When the wheel is slipping due to an excessive engine torque while starting off or driving, this controls
the driving force (braking force + engine torque) in order to prevent the wheel from slipping through the
engine or brake control.
AYC: Active Yaw Control ▶
This has been developed to help a driver avoid danger of losing control of the vehicle stability due to
understeer or oversteer during cornering, which is a part of the ESP function.
HBA: Hydraulic Brake Assistant ▶
Developed based on the fact that elderly drivers depress the brake pedal too soft even when hard
braking is necessary, this an assist system to operate the HECU drive motor immediately and apply
high braking force to the wheels when the brake pedal is depressed softly and the vehicle should be
braked in emergency.
ARP: Active Rollover Protection ▶
This is a supplementary device for safety in ESP system and can help minimize the rollover accidents
by detecting a potential rollover situation through the brake and engine control when making sudden
lane change or turning sharply by adding only the software, without any separate device or switch.

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3. PRECAUTIONS
The warning lamp flashes and warning beep sounds when the ESP is operating
When the ESP operates during vehicle movement, the ESP warning lamp on the instrument
panel flashes and beep comes on every 0.1 second. The ESP system is only a supplementary
device for comfortable driving. When the vehicle exceeds its physical limits, it cannot be
controlled.
Do not rely on the system. Keep on the safe driving.
Feeling when ESP is working
When the ESP system activates, the feeling can be different depending on vehicle driving
conditions.
For example, you will feel differently when the ESP system is activated during the ABS is
operating with the brakes applied and when the brakes are not applied on a curve.
If the ESP system operates when the brake is applied, the brake pressure will be increased on
the corresponding wheel which already has braking pressure for the ESP controls.
Noise and vibration that driver feels when ESP system is operating
The ESP system may transfer noise and vibration to the driver due to the pressure changes
caused by the motor and valve operations in a very short period of time. And, keep in mind that
the output and vehicle speed could be decreased without rpm increase due to the ASR function
that controls the engine power. -
-
-
ARP Operation
During the ARP operation, vehicle safety (rollover prevention) takes the first priority and thus,
stronger engine control is in effect. Consequently, the vehicle speed decreases rapidly, so the
driver must take caution for the vehicle may drift away from the lane. -

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1. ESP (Electronic Stability Program)
As the single-track vehicle model used for the calculations is only valid for a vehicle moving forward,
ESP intervention never takes place during backup.
The ESP system includes the ABS/EBD and ASR systems allowing the system to be able to operate
depending to the vehicle driving conditions.
1) Overview
For example, when the brakes are applied during cornering at the speed of 100 km/h, the ABS will
operate at the same time the ASR or ABD systems operate to reduce the power from the slipping
wheel. And when yaw rate sensor detects the rate exceeding 4 degree/seconds, the ESP system
is activated to apply the brake force to the corresponding wheel to compensate the yaw moment
with the vehicle stability control function. This may cause a problem in vehicle control system due
to multi-operation of systems, thus there is a priority as below:
TCS (ASR or ABD) ＞ ESP ＞ ABS (This is subject to the driving and vehicle conditions.)

09-16
(4) Vehicle Control During Cornering
The figure below shows the vehicle controls by the ESP system under various situations such as when
the brake pedal is depressed or not depressed during cornering, when the ABS is operating and when
braking without the ABS. It also includes the vehicle conditions when the TCS, a part of the ESP
system, is operating.
Item Understeer control Oversteer control
Only ESP in
operation
No braking by
driver
ESP
+
Normal braking
(no ABS operation)
ESP
+
ABS brake
ESP + TCS