Remove/check/install front axle brake pads

AR42.10-D-1600F

Remove/check/install front axle brake pads

11.3.10

 

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

AH42.50-P-0001-01A



Notes on repairs to brake system

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

Press back brake piston approx. 3 mm. For this purpose, pull the upper section of the brake caliper towards the outside of the vehicle

 This clearance is required so that the upper section of the brake caliper does not stick on the rivets on the back of the brake pads when folding up.

4

Remove bolt (2), fold upper section of brake caliper (1) upwards and remove brake pads (4)



*BA42.10-N-1004-10A

 Brake lining wear limit

*BE42.10-N-1001-10A

 Installation: Remove remains of the self-locking coating from brake caliper (5) using thread tap M8 Rub in a thin film of brake pad paste at the side guides and piston contact surfaces of the carrier plate of the brake pads.

*BR00.45-Z-1003-06A

 Replace bolt (2).

Only complete sets of brake pads approved by Mercedes-Benz may be installed.

Brake pads must be disposed of as special waste. The local authorities can provide information regarding whether disposal is also permitted as industrial waste similar to domestic waste.

5

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

6

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

7

Install in the reverse order

8

Build up brake pressure

 Operate brake pedal several times.

9

Check brake fluid level in reservoir and correct if necessary



AP42.50-D-4210B

10

Check brake system for leaks

Number

Designation

Model
WD1/WD2/
WD3/WD6/
WD7/XD1/
XD2/XD3/
XD4/XD5/
XD6/XD7/
YD1/YD2/
YD3/YD4/
YD5/YD6/
YD7

Model
690.6,
901, 902, 903, 904

BE42.10-N-1001-08B

Brake disk

Thickness when new

mm

22

22

Wear limit

mm

19

19

Lateral runout

mm

0.05

0.05

Flatness deviation

mm

0.02

0.02

Repair limit dimension

mm

-

-

Number

Designation

Model
WD1/WD2/
WD3/WD6/
WD7/XD1/
XD2/XD3/
XD4/XD5/
XD6/XD7/
YD1/YD2/
YD3/YD4/
YD5/YD6/
YD7

Models
690.6, 901,
902, 903,
904

BE42.10-N-1001-10A

Brake lining wear limit

mm

2

2

Number

Designation

Models
901, 902, 903

Model
WD1/WD2/
WD3/WD6/
WD7/XD1/
XD2/XD3/
XD6/XD7/
YD1/YD2/
YD3/YD6/
YD7

BA42.10-N-1004-10A

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

M8

Nm

25

25

M10/10.9

Nm

30

30

Number

Designation

Order number

BR00.45-Z-1003-06A

Brake pad paste replaced by: A 001 989 94 51

A 001 989 10 51