1 | Tandem brake master cylinder |
6 | Brake lines |
7 | Feed hose |
9 | Reservoir plug |
10 | Expansion reservoir |
10a | Screw |
17 | Seal |
19 | Nuts |
20 | Electrical connector |
A7/7 | BAS brake booster |
A7/7s1 | BAS release switch |
B34/1 | ESP brake pressure sensor 1 |
S11 | Brake fluid indicator switch |
P42.10-2302-06
| Remove/install | ||
Caution | Risk of poisoning from swallowing brake fluid. Risk of injury from skin and eye contact with brake fluid | Only pour brake fluid into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid. | |
Topical note | Notes on externally invisible brake fluid loss | ||
Topical note | Brake fluid notes | ||
Topical note | Notes on repairs to brake system | ||
1 | Eliminate vacuum in BAS brake booster (A7/7) | To do this, press the brake pedal several times with the engine switched off. | |
2 | Open engine hood and raise to vertical position | ||
3 | Disconnect electrical connector (20) on brake fluid indicator switch (S11) | ||
4 | Drain brake fluid from expansion reservoir (10) for brake fluid | ||
5 | Detach brake lines (6) from tandem master brake cylinder (1) | Seal off line connections using stop plugs. | |
Brake pipe to master brake cylinder | |||
Box wrench bit | |||
Record plug | |||
6 | Disconnect electrical connector from ESP pressure sensor 1 (B34/1) | ||
7 | Unscrew ESP pressure sensor 1 (B34/1) | ||
Only when replacing tandem master brake cylinder (1). | |||
Brake pressure sensor to master brake cylinder | |||
8 | Remove torsion bar linkages | ||
The torision bar linkages must be checked for unobstructed movement in vehicles that have been in accidents and have deformations in the area of the front-end assembly. | |||
9 | Detach feed hose (7) from clutch master cylinder |
| |
Seal feed hose (7) with stop plug. | |||
Record plug | |||
10 | Unscrew nuts (19) at top and bottom from BAS brake booster (A7/7) | Nut, brake master cylinder to brake booster | |
11 | Detach tandem master brake cylinder (1) from stud bolts and turn slightly to the side | | |
12 | Remove tandem master brake cylinder (1) | Installation: Replace seal (17). | |
13 | Remove screw (10a) | ||
14 | Pull expansion reservoir (10) for brake fluid out of tandem master brake cylinder (1) | Installation: Check reservoir plug (9) and replace it if necessary in order to prevent leakage. | |
15 | Install in the reverse order | ||
16 | Bleed brake system | ||
Brake fluid | |||
| Check | ||
Warning | Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running. | Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts. | |
17 | Check brake system for leaks | Check brake system for leaks | |
Danger | Risk of death caused by limbs being caught or crushed by rotating parts when performing tests on the brake test stand | Never leave the vehicle unattended on the rollers except in an emergency. Ensure that no one is under the vehicle or near rotating parts during testing. In case of emergency, use the EMERGENCY OFF switch to shut down test stand. | |
18 | Carry out brake test on the test stand | ||
| Brake test |
129 589 00 91 00
Record plug
000 589 75 03 00
Box wrench bit