Replacing Hydraulic Unit For DSC

Note:
Read and comply with General Information.
Before removing hydraulic unit, read out control unit fault memory and if necessary, print out diagnostic trouble code.

Installation:
On completion, carry out following tasks with the DIS (Diagnosis and Information System):
^ Function check, hydraulic unit
^ Coding for new control unit
^ Adjustment of steering angle sensor
^ End-of-tape test for new control unit
Bleeding braking system





Load and block brake pedal with pedal support.

Installation: Detach plug connection to control unit.





Detach brake lines.

Caution:
Do not mix up brake lines, mark prior to removal if necessary.
Brake fluid may emerge.

Installation:Pipe connections
(V) from THZ circuit F to hydraulic control unit circuit F (front axle circuit)
(R) from THZ circuit R to hydraulic control unit circuit R (rear axle circuit)
(FR) from hydraulic control unit FR to front right wheel brake
(FL) from hydraulic control unit FL to front left wheel brake
(RR) from hydraulic control unit RR to rear right wheel brake
(RL) from hydraulic control unit RL to rear left wheel brake
Brake hose couplings
M10x1 18 ± 1 Nm
M12x1 18 ± 1 Nm






Unlock plug connection on pressure sensor (1) and disconnect.
Release screws (2) and remove hydraulic unit.
Installation: Tightening torque, refer to specifications.

Release bracket screws on hydraulic unit and convert bracket.
Screws are of different lengths!
Bracket, Hydraulic unit to body 8 Nm