Bleed brake system

AR42.10-S-0010S

Bleed brake system

26.11.2019

Model

636, 639

1

Bleeder unit

2

Brake fluid reservoir

3

Brake booster

Bleeding

 Danger

Risk of death when working on component parts and systems with U >= 30 V alternating voltage (AC) or U >= 60 V direct voltage (DC)

Do not touch damaged or defective live component parts and lines or non-insulated electrical connections and lines.

AS00.00-Z-0035-01A

 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

Topical note

General information on handling vehicles with high-voltage on-board electrical system and/or lithium-ion battery and/or gaseous-fuel drive system

AH00.00-Z-0300-01A

Topical note

Notes on repairs to brake system

AH42.00-P-0003-01A

Topical note

Notes on externally invisible brake fluid loss

AH42.10-P-9406-02A

Topical note

Brake fluid notes

AH42.50-P-0001-01A

1

Open engine hood and secure against falling down

2

Perform power disconnect on high voltage system

Model 639.603/703 with engine 780.994 with code MA0 (E-CELL 60 kW), only for Europe

AR54.10-S-1160EV

3

Connect bleeder unit (1) to reservoir for brake fluid (2)

 Observe manufacturer's operating instructions.

Venting pressure at expansion reservoir

*BE42.50-N-1001-01B

4

Raise vehicle with vehicle lift

AR00.60-S-1000S

5

Carrying out bleeding operation

AR42.10-S-0010-02S

Venting pressure at expansion reservoir

*BE42.50-N-1001-01B

 Bleed valve on floating caliper (front axle)

*BA42.10-N-1001-03A

 Vent valve on rear axle floating brake caliper

*BA42.10-N-1003-12H

6

Bleed clutch operating system

Only with transmission 711.6, 716.6

AR25.20-S-0070S

7

Disconnect bleeder unit (1) on reservoir for brake fluid (2)

 Observe manufacturer's operating instructions.



Check

8

Check fluid level in brake fluid reservoir (2) and correct if necessary

 Brake fluid

*BF42.00-N-1001-01D

9

Check brake system for leaks

AR42.10-S-0100-01S

Check values for hydraulic braking system

Number

Designation

Model 636.705/813

Model 639.601/603/605/701/703/705/711/713/811/813/815

BE42.50-N-1001-01B

Venting pressure at expansion reservoir

bar

2...2,5

2...2,5

 Front axle floating caliper

Number

Designation

Model 636.705/813

Model 639.601/603/605/701/703/705/711/713/811/813/815

BA42.10-N-1001-03A

Bleed valve on floating caliper (front axle)

ITT

Nm

–

–

Bosch

Nm

10

10

Brembo

Nm

–

10

 Rear axle brake caliper

Number

Designation

Model 636.705/813

Model 639.601/603/605/701/703/705/711/713/811/813/815

BA42.10-N-1003-12H

Vent valve on rear axle floating brake caliper

Nm

10

10

 Brake system filling quantities

Number

Designation

Model 447, 448, 636, 639

BF42.00-N-1001-01D

Brake fluid

X brake circuit splitting

Liter

0,8

with ESP

Liter

1,0

Sheet

BB00.40-P-0331-00A