Remove/install master brake cylinder

AR42.10-P-0300RR

Remove/install master brake cylinder

18.6.03

6.6.05

It is not necessary to change all brake lines each time they are disconnected; observe color coding

Stage 5

 

Remove/install

 Danger!

Risk of poisoning caused by swallowing brake fluid. Risk of injury caused by brake fluid coming into contact with skin and eyes.

Pour brake fluid only into suitable and appropriately marked containers. Wear protective clothing and eye protection when handling brake fluid.

AS42.50-Z-0001-01A



Brake fluid notes

All models

AH42.50-P-0001-01A



Notes on repairs to brake system

All models

AH42.00-P-0003-01A



Collect discharged brake fluid in a suitable container

1

Open front hood

2

Remove luggage compartment pan

3

Suction off brake fluid out of the brake fluid reservoir

4

Separate plug (3) from brake fluid reservoir



Check

5

Check color coding of brake lines (2)

 See: 

Mark brake lines (2)

AR42.10-P-0013-05SM

"Yellow" locking paint

*BR00.45-Z-1027-07A

"Red" safety paint

*BR00.45-Z-1028-07A

6

Unscrew threaded connection of brake lines (2) at master brake cylinder (1)

 Installation: Do not damage the threads when positioning the threaded connections as the resulting chippings could cause the entire brake system to fail.

 Installation: Make sure that the brake lines (2) are not bent, are routed correctly, do not leak and do not rest against the body.

 Seal the connections using suitable plugs.



*BA42.10-P-1005-04E

 Ring wrench socket

*450589099904

7.1

Install new brake lines (2)

Left-hand drive vehicle, code LHD

AR42.10-P-0017RR

Right-hand drive vehicle, code RHD

AR42.10-P-0017RL

 Only if the brake lines (2) with red color coding have been unscrewed from their threaded connection.

See: 

Mark brake lines

AR42.10-P-0013-05SM

"Yellow" locking paint

*BR00.45-Z-1027-07A

"Red" safety paint

*BR00.45-Z-1028-07A

8

Unscrew nuts (4) on master brake cylinder (1)

 Installation: Do not damage gasket.



*BA42.10-P-1001-05E

9

Install in the reverse order

10

Bleed brake system

AR42.10-P-0010RR

11

Check brake system for leaks

AR42.10-P-0100-01RR

Number

Designation

Model 452.3/4

BA42.10-P-1005-04E

Brake pipe to master brake cylinder

Nm

14

Number

Designation

Model 452.3/4

BA42.10-P-1001-05E

Nut, brake master cylinder to brake booster

Nm

20

Number

Designation

Order number

BR00.45-Z-1028-07A

"Red" safety paint

Lackfabrik Bäder GmbH & Co. KG
Dieselstrasse 34
73734 Esslingen
Germany
Tel. +49 711 381607
Fax +49 711 383092

BR00.45-Z-1027-07A

"Yellow" locking paint

Lackfabrik Bäder GmbH & Co. KG
Dieselstrasse 34
73734 Esslingen
Germany
Tel. +49 711 381607
Fax +49 711 383092