Hyundai Sonata: Specifications - General Information - Brake SystemHyundai Sonata: Specifications

Specifications
Item
Specification
Master cylinder
Type
Single
I.D. mm(in)
NON EPB 
?22.22mm
EPB
?23.81mm
Piston stroke mm(in)
45±1mm(1.77±0.039in)
Fluid level sensor
Provided
Brake booster
?
Type
11" Single
Boosting ratio
9:01
Front disc brake
Type
Ventilated disc
Disc O.D
GAMMA1.6 T-GDI
305mm (12.0078 in)
THETA2.4 GDI
THETA2.0 T-GDI
320mm(15.5984 in)
EPB
 Disc
thickness
GAMMA1.6 T-GDI
25mm (0.9842in)
THETA2.4 GDI
THETA2.0 T-GDI
28mm (1.1023 in)
EPB
Disc
Service Limit
GAMMA1.6 T-GDI
23.4mm (0.9212 in)
THETA2.4 GDI
THETA2.0 T-GDI
26.4mm (1.0393in)
EPB
Pad
 thickness
GAMMA1.6 T-GDI
11.5mm (0.4527 in)
THETA2.4 GDI
THETA2.0 T-GDI
10.5mm (0.4133 in)
EPB
Pad
Service limit
GAMMA1.6 T-GDI
2.0mm (0.0787 in)
THETA2.4 GDI
THETA2.0 T-GDI
EPB
Cylinder type
Single  piston
Rear disc brake
Type
Solid disc
Disc O.D
GAMMA1.6 T-GDI
284 mm (11.1811 in)
THETA2.4 GDI
THETA2.0 T-GDI
EPB
 Disc thickness
GAMMA1.6 T-GDI
10 mm (0.3937 in)
THETA2.4 GDI
THETA2.0 T-GDI
EPB
Disc Service Limit
GAMMA1.6 T-GDI
8.4 mm (0.3307 in)
THETA2.4 GDI
THETA2.0 T-GDI
EPB
Pad
 thickness
GAMMA1.6 T-GDI
10mm (0.3937 in)
THETA2.4 GDI
THETA2.0 T-GDI
EPB
Pad
Service limit
GAMMA1.6 T-GDI
2.0mm (0.0787 in)
THETA2.4 GDI
THETA2.0 T-GDI
EPB
Cylinder type
Single  piston
Parking brake
Type
DIH (Drum in hat)
Drum(Disc) I.D
O 168 mm (6.61 in)

   
O.D. : Outer Diameter
I.D : Inner Diameter
Specification(ESP)
Part
Item
Standard value
Remark
HECU
System
4 Channel 4 Sensor (Solenoid)
Total control
Type
Motor, valve relay intergrated type
(ABS, EBD, TCS, ESP)
Operating Voltage
10 ~ 16 V
?
Operating Temperature
-40 ~ 120 °C (-40 ~ 248°F)
?
Motor power
290 W
?
Active Wheel speed sensor
Supply voltage
DC 4.5 ~ 20 V
?
Output current low
5.9 ~ 8.4 mA
?
Output current high
11.8~ 16.8 mA
?
Output range
1 ~ 2500 Hz
?
Tone wheel
47 teeth
?
Air gap
Front
0.4 ~ 1.2 mm
?
Rear
0.4 ~ 1.0 mm
Steering Wheel Angle Sensor
Operating Voltage
8 ~ 16 V
?
Current Consumption
Max. 150 mA
?
Output measurement range
-780 ~ +779.9 °
?
Operating Angular velocity
0 ~ 1016 °/sec
?

Service Standard
Items
Standard value
Brake pedal Full stroke
135 mm (5.31 in)
Stop lamp switch clearance
1.0 ~ 2.0 mm (0.04 ~ 0.08 in)
Brake pedal free play
3 ~ 8 mm (0.12 ~ 0.31 in)

Tightening Torques
Items
N.m
kgf.m
lb-ft
Master cylinder to brake booster
9.8 ~ 15.6
1.0 ~ 1.6
7.2 ~ 11.6
Mater cylinder tube flare nuts
18.6 ~ 22.6
1.9 ~ 2.3
13.7~16.6
Brake booster mounting nuts
9.8 ~ 14.7
1.0 ~ 1.5
7.2 ~ 10.8
Air bleeding screw
6.9 ~ 12.7
0.7 ~ 1.3
5.1 ~ 9.4
Brake tube flare nuts
13.7 ~ 16.7
1.4 ~ 1.7
10.1 ~ 12.3
Front caliper guide rod bolts
21.6 ~ 31.4
2.2 ~ 3.2
15.9 ~ 23.1
Rear caliper guide rod bolts
21.6 ~ 31.4
2.2 ~ 3.2
15.9 ~ 23.1
Front caliper assembly to knuckle
78.5 ~ 98.1
8.0 ~ 10.0
57.9 ~ 72.3
Rear caliper assembly to knuckle
78.5 ~ 98.1
8.0 ~ 10.0
57.9 ~ 72.3
Brake hose to caliper
24.5 ~ 29.4
2.5 ~ 3.0
18.1 ~ 21.7
Brake pedal member bracket bolts
9.8 ~ 14.7
1.0 ~ 1.5
7.2 ~ 10.8
Brake pedal shaft nut
29.4 ~ 34.3
3.0 ~ 3.5
21.7 ~ 25.3
Front wheel speed sensor mounting bolt
7.8 ~ 9.8
0.8 ~ 1.0
5.8 ~ 7.2 
HECU bracket mounting bolt and nut
19.6 ~ 29.4
2.0 ~ 3.0
14.5 ~ 21.7
HECU brake tube flare nuts
18.6 ~ 22.6
1.9 ~ 2.3
13.7~16.6

Lubricants
Items
Recommended
Quantity
Brake fluid
DOT 3 or DOT 4
As required
Brake pedal bushing and bolt
Chassis grease
As required
Parking brake shoe and backing plate contacting surface
Heat resistance grease
As required

    Special Service Tools
    Special Service Tools Tool(Number and Name)IllustrationUse09581-11000Piston expanderSpreading the rear disc brake piston.09580 - 0U000Brake piston adjusterRemoval and installation of the rear di ...

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