Replace brake fluid

AP42.00-P-4280SM

Replace brake fluid

2.11.11

20.9.03

Bleeding secondary circuit of brake system using STAR DIAGNOSIS deleted

Replace

 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

 Danger!

Risk of injury caused by moving parts that can pinch, crush or, in extreme cases even sever extremities.

Always remove ignition key when working on windshield wiper mechanism.

AS82.30-Z-0001-01A



Brake fluid notes

AH42.50-P-0001-01A



Notes on repairs to brake system

AH42.00-P-0003-01A

1.1

Detach right service grill (1)

Model 450.3/4 except 450.418

1.2

Open windshield

Model 450.418

2

Unscrew cap of brake fluid reservoir (2)

3

Connect brake fluid changer to brake fluid reservoir (2) and apply the specified pressure to the brake system

 Observe the operator's manual for the brake fluid changer.

Brake fluid change unit

gotis://B_42/43.2_01



General brake fluid

Sheet 330.1

BB00.40-P-0330-01A



Brake fluids (DOT 4 plus)

Sheet 331.0

BB00.40-P-0331-00A

 Danger!

Risk of death caused by vehicle slipping or toppling off of the lifting platform.

Align vehicle between columns of vehicle lift and position four support plates at vehicle lift support points specified by vehicle manufacturer.

AS00.00-Z-0010-01A

4

Raise vehicle with vehicle lift

 Position the front support plates of the vehicle lift as far as possible upwards, position the rear support plates as far as possible downwards and secure the vehicle to prevent it from slipping or toppling.

5

Remove dust caps from the brake bleeder valves

6

Connect hose of the brake fluid receptacle to the brake bleeder valve of the right-hand wheel brake cylinder (4) and open brake bleeder valve

 Close the brake bleeder valve only after the brake fluid escapes free of bubbles and without contamination (bright color of brake fluid).



*BA42.10-P-1001-08C

7

Carry out the bleeding process on the wheel brake cylinder (4) on the left, brake caliper (3) on the right and brake caliper (3) on the left in the same manner

 Observe correct sequence.



*BA42.10-P-1002-03C



*BA42.10-P-1001-08C

8

Check brake pedal travel

 The brake system must be bled manually in the event of a soft pedal feel or long pedal travel. See: 



Bleed brake system manually

AR42.10-P-0010-04SM

9

Press dust cap onto brake bleeder valve

10

Lower vehicle with vehicle lift

11

Disconnect brake fluid changer

12

Check brake fluid level and correct if necessary

AP42.10-P-4210SM

13

Screw on cap of brake fluid reservoir (2)

14.1

Install right service grill (1)

Model 450.3 /4 except 450.418

14.2

Close windshield

Model 450.418

15

Check leaktightness of brake system



Check brake system for leaks

AR42.10-P-0100-01SM

Number

Designation

Model 450.3/4

BA42.10-P-1001-08C

Brake bleed valve to rear axle wheel brake cylinder

Nm

6,5

Number

Designation

Model 450.3/4

BA42.10-P-1002-03C

Brake bleeder valve to brake caliper

Nm

7.5