Remove/check/install front axle brake pads

AR42.10-D-1600E

Remove/check/install front axle brake pads

15.1.10

25.1.02

Notes on evaluating brake disks added

AH42.10-N-9406-07B

 

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.

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



Brake fluid notes

All models

AH42.50-P-0001-01A



Notes on repairs to brake system

All models

AH42.00-P-0003-01A



Notes on evaluating brake disks

AH42.10-N-9406-07B

1

Unscrew lid from brake fluid reservoir



2

Remove front wheels

AR40.10-D-1100A

3

Push back top part of brake caliper with assembly lever.

 If the brake fluid level in the expansion reservoir is too high, suction off a little brake fluid beforehand.

4

Detach wear indicator (6).

5

Detach dust cap (5).

6

Remove bolt (4), fold upper section of brake caliper (1) upwards and remove brake pads (7)

 Installation: Only brake pads approved by Mercedes Benz must be installed. Fit new brake pads on both wheels of an axle at the same time.

 Installation: Remove remains of the self-locking coating from brake caliper (7) using thread tap M8 Use new bolt (4) when assembling.



*BA42.10-N-1004-10A

Brake lining wear limit

*BE42.10-N-1001-10A

7

Check guide sleeve (2) and seal sleeve (3) for wear and damage and replace if necessary.

8

Clean brake parts and check for wear and damage

AR42.10-D-1600-11A



*124589051900



*000589266800

 Brake disk wear limit

*BE42.10-N-1001-08B

9

Push back piston.

 In order to avoid damage to the dust boot when installing the brake pads it is essential to ensure that after pressing back the piston the dust boot is completely folded in and does not project anywhere

AR42.10-D-1600-09A



*000589524300

10

Install in the reverse order

11

Build up brake pressure

 Depress brake pedal several times.

12

Check brake fluid level in reservoir and correct if necessary



AP42.50-D-4210A

12

Check brake system for leaks

Number

Designation

Model
905

BE42.10-N-1001-08B

Brake disk

Thickness when new

mm

26

Wear limit

mm

23

Lateral runout

mm

0.04

Flatness deviation

mm

0.02

Repair limit dimension

mm

-

Number

Designation

Models
690.6, 901,
902, 903,
904

Model 905

BE42.10-N-1001-10A

Brake lining wear limit

mm

2

3

Number

Designation

Model 905

BA42.10-N-1004-10A

Guide pin/catch bolt, top section of brake caliper to brake caliper support

M8

Nm

30

M10/10.9

Nm

-