Remove/install brake hoses at front axle

AR42.10-S-0024E

Remove/install brake hoses at front axle

09.03.2020

Model

447, 448

Illustration of left side of vehicle

1

Brake line

2

Brake caliper

3

Brake hose

4

Bracket

 Danger

Risk of accident when commissioning the vehicle due to a lack of braking effect when the service brake is operated for the first time after repair work.

Before starting the engine, actuate brake pedal several times until pressure is built up and maintained in the brake system.

AS42.50-Z-0002-01A

 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.

AS42.50-Z-0001-01A

Topical note

Notes on repairs to brake system

AH42.00-P-0003-01A

Topical note

Notes on installing brake hoses

AH42.10-P-9406-01A

Topical note

Brake fluid notes

AH42.50-P-0001-01A

Notes on inspecting corrosion on brake lines

AH42.50-Z-0002-01A



Remove

1

Raise vehicle.

AR00.60-S-1000E

2

Remove brake hose  (3) from holder  (4).

3

Remove brake hose (3) from brake line (1) and seal with suitable stop plugs.


Seal connections immediately.
The brake fluid reservoir will otherwise drain completely.

 Collect brake fluid which runs out in a suitable container.

 Record plug

*129589009100

4

Remove brake hose (3) from brake caliper (2) and seal with suitable stop plugs.


Seal connections immediately.
Otherwise, ingress of dirt can damage the brake caliper (2).

 Record plug

*129589009100

5

Clean brake caliper (2) and any areas soiled by escaping brake fluid.

Assembly cleaner

*BR00.45-Z-1028-04A



Install

6

Check brake hose (3) for damage and replace if necessary.

7

Remove stop plugs and install brake hose (3) at brake caliper (2).

 Brake hose to brake caliper

*BA42.10-N-1001-04D

8

Remove stop plug and install brake hose (3) at brake line (1).

 Do not install brake hose  (3) twisted.

 Retaining screw, brake line to brake hose

*BA42.10-N-1002-04D

9

Install brake hose  (3) in holder  (4).

10

Lower vehicle.

AR00.60-S-1000E

11

Bleed brake system.

AR42.10-S-0010E

 Brake lines, brake hoses

Number

Designation

Model 447, 448

BA42.10-N-1001-04D

Brake hose to brake caliper

Nm

24

 Brake lines, brake hoses

Number

Designation

Model 447, 448

BA42.10-N-1002-04D

Retaining screw, brake line to brake hose

Nm

14

Repair materials

Number

Designation

Order number

BR00.45-Z-1028-04A

Assembly cleaner

A 000 986 56 01