Bleed brake system

AR42.10-P-0010GW

Bleed brake system

11.10.2018

Model

463 (except 463.270/271)

as of model year 2013 up to model year 2019

1

Right rear brake caliper

4

Left front brake caliper

A

Bleed screw

2

Left rear brake caliper

5

Cap

B

Bleed screw

3

Right front brake caliper

6

Brake fluid reservoir

C

Bleed screw

 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

 Warning

Risk of injury. Skin or eye injuries may result when handling hot or glowing objects.

Wear protective gloves, protective clothing and safety glasses, if necessary.

AS00.00-Z-0002-01A

Topical note

Notes on repairs to brake system

AH42.00-P-0003-01A

Topical note

Brake fluid notes

AH42.50-P-0001-01A

 

Remove/install

1

Open hood

AR88.40-P-1000GG

2

Unscrew cap (5) of brake fluid reservoir (6) and add new brake fluid up to MAX marking

3

Connect filling and bleeding unit on brake fluid reservoir (6) and switch on

 Observe manufacturer's operating instructions.

4

Remove front wheel-and-tire assemblies



AP40.10-P-4050G

5

Carrying out bleeding operation

Model 463 (except 463.270/271)
as of model year 2016 up to model year 2019

AR42.10-P-0010-02GWA

Model 463 (except 463.270/271)
as of model year 2013 up to model year 2016

AR42.10-P-0010-02GW


The bleeding sequence in the reference document must always be adhered to.
Otherwise the brake system may fail.

 Bleed screw at front axle fixed brake caliper

*BA42.10-P-1001-02B

 Bleed screw on rear axle floating caliper

*BA42.10-P-1001-17B

6

Install in the reverse order



Check

 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

7

Press brake pedal several times and check brake system for leak tightness

Model 463 (except 463.270/271)
as of model year 2013 up to model year 2019
except code 979 (Special protection MB Guard)

Model 463 (except 463.270/271)
as of model year 2013 up to model year 2019
except code 979 (Special protection MB Guard)

AR42.10-P-0100-01A

 Firm resistance should be noticeable at the brake pedal.

8

Carry out brake test on the test stand

 Front axle fixed brake caliper

Number

Designation

Model 461 (except 461.339)
Model 463
up to model year 2019

BA42.10-P-1001-02B

Bleed screw at front axle fixed brake caliper

Nm

14

 Rear axle floating caliper

Number

Designation

Model 461
Model 463 (except 463.270/271/272/273)
up to model year 2019

Model 463.270/271/272/273
up to model year 2019

BA42.10-P-1001-17B

Bleed screw on rear axle floating caliper

Nm

15

17