Hydraulic Unit and Brake Booster/Master Cylinder Overview

Hydraulic Unit and Brake Booster/Master Cylinder Overview






1 ABS Control Module (J104)

• With Electronic Differential Lock (EDL).

• Removing and installing, refer to => [ Control Module and Hydraulic Unit, with ABS Mark 70 (ABS/ASR) ] Control Module and Hydraulic Unit, with ABS Mark 70 (ABS/ASR).

2 ABS Hydraulic Unit (N55)

• Removing and installing, refer to => [ Control Module and Hydraulic Unit, with ABS Mark 70 (ABS/ASR) ] Control Module and Hydraulic Unit, with ABS Mark 70 (ABS/ASR).

3 Brake Line

• Master cylinder to the primary piston circuit in the hydraulic control unit.

• Identification: Fitting with M10 x 1 threads.

4 Brake Line

• Master cylinder to the secondary piston circuit in the hydraulic control unit.

• Identification: Fitting with M12 x 1 threads.

5 Brake Line

• To the left front brake caliper.

• Identification: Fitting with M12 x 1 threads.

6 Brake Line

• To the right front brake caliper.

• Identification: Fitting with M10 x 1 threads.

7 Brake Line

• To the left rear brake caliper.

• Identification: Fitting with M12 x 1 threads.

8 Brake Line

• To the right rear brake caliper.

• Identification: Fitting with M10 x 1 threads.

9 Inner TORX(R) Bolt

• 5.5 Nm

• Use new bolts.

10 Bracket

11 Bolt

• 8 Nm

12 Gasket

• For the brake booster.

13 Brake Booster

• Overview, refer to => [ Brake Booster and Master Cylinder Overview ] Brake Booster and Master Cylinder Overview.

• Removing and installing, refer to => [ Brake Booster ] Brake Booster.

14 Seal

15 Brake Master Cylinder

• Allocation, refer to the Parts Catalog.

• Cannot be serviced. Replace as a complete unit if malfunctioning.

• Removing and installing, refer to => [ Master Cylinder ] Master Cylinder.

16 Nut

• 25 Nm

• Always replace if removed.

17 Plug

• Lubricate with brake fluid and press into the brake fluid reservoir.

18 Brake Fluid Reservoir

19 Cap

20 Grommet

• Connection for the vacuum hose.

21 Vacuum Hose

• Inserts into the brake booster.

22 Vacuum Sensor (G608)

• On vehicles with a hydraulic brake booster.

• Removing and installing, refer to => [ Vacuum Sensor G608 ] Vacuum Sensor G608.