Bosch ABS M4, User Manual, Page: 18 / 54

Assembling the Parts
The following chapter introduces the parts of the ABS Kit.
Hydraulic Power Unit with attached Control
Unit
2
Connector
Hydr. Power Unit with attached Control Unit
HL = Brake cylinder rear left
HR = Brake cylinder rear right
HZ1 = Brake master cylinder front
HZ2 = rake master cylinder rear
VR = Brake cylinder front right
VL = Brake cylinder front left
3 4
6
7 8
1
6
7
8
2
3
4
5
1
5
Up
The hydraulic power unit with attached control unit has six hydraulic connections
— two for the two master cylinders (one each for the front and rear axles) and
four for the brake lines.
Caution
The hydraulic power unit is prefilled with brake fluid. During
assembly, make sure as little brake fluid as possible is lost.
When installing the hydraulic power unit, make sure the brake line connections
are facing upwards to ensure air can be bled out to the brakes. Secure the hy‐
draulic power unit to the assembly plate supplied with the ABS M4 Kit using the
three M6x1 screw threads on the underside of the casing. To reduce vibration,
rubber pads should be fitted between the assembly plate and the vehicle chassis.
To allow easy connection of the main ABS ECU connector, maintain a 10 mm dis‐
tance between the vehicle chassis and the bottom of the assembly plate.
7
7.1
7 | Assembling the Parts
18 / 54 ABS M4 Manual Bosch Motorsport