Bleed differential lock hydraulic system

AR33.40-P-0701GG

Bleed differential lock hydraulic system

28.09.2017

Model

460, 461

Model

463

up to model year 2013

Shown on model 460

1

Front axle shift cylinder

2

Rear axle shift cylinder

3

Expansion reservoir

 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

1

Connect filling and bleeding device to expansion reservoir (3)

Topical note

Brake fluid notes

AH42.50-P-0001-01A



000 588 01 82 00 Filling unit

WS25.00-P-0016B



Brake fluids (DOT 4 plus)

For all vehicle models from Mercedes-Benz and smart

BB00.40-P-0331-00A

 Observe manufacturer's operating instructions. Bleed pressure is 2 bar. Note the different installation positions for the expansion reservoir (3) for the various vehicle model designations.

2.1

Open bleed screw on front axle shift cylinder (1)

All models

 To bleed the front differential lock, allow approx. 80 cm3 of brake fluid to flow out free of bubbles.

2.2

Open bleed screw on rear axle shift cylinder (2)

All models

 To bleed the rear differential lock, allow approx. 80 cm3 of brake fluid to flow out free of bubbles.

2.3

Open bleed screw on shift cylinder of second rear axle

Model 461.392

 To bleed the rear differential lock of the second rear axle, allow approx. 80 cm3 of brake fluid to flow out free of bubbles.

3.1

Close bleed screw on front axle shift cylinder (1)

All models

 Model 460, 461
Model 463
up to model year 2013Bleed screw to differential lock cylinder

*BA33.40-P-1005-01A

3.2

Close bleed screw on rear axle shift cylinder (2)

All models

 Model 460, 461
Model 463
up to model year 2013Bleed screw to differential lock cylinder

*BA35.40-P-1006-01A

3.3

Close bleed screw on shift cylinder of second rear axle

Model 461.392

 Bleed screw to differential lock cylinder

*BA35.40-P-1006-01A

4

Connect filling and bleeding unit



000 588 01 82 00 Filling unit

WS25.00-P-0016B

5

Check brake fluid level in expansion reservoir (3), correct if necessary

Topical note

Brake fluid notes

AH42.50-P-0001-01A



Brake fluids (DOT 4 plus)

For all vehicle models from Mercedes-Benz and smart

BB00.40-P-0331-00A

 Differential lock shift cylinder

Number

Designation

Model 460, 461

Model 463
up to model year 2019

BA33.40-P-1005-01A

Bleed screw to differential lock cylinder

Nm

14

14

 Differential lock shift cylinder

Number

Designation

Model 463
as of model year 2019

BA33.40-P-1005-01A

Bleed screw to differential lock cylinder

Nm

-

 Differential lock shift cylinder

Number

Designation

Model 460, 461
Model 463
up to model year 2019

Model 463
as of model year 2019

BA35.40-P-1006-01A

Bleed screw to differential lock cylinder

Nm

14

-