Remove/install vacuum pump

AR43.05-P-1320CD

Remove/install vacuum pump

14.03.2018

Model

172, 204, 207, 212, 218, 221 with engine 651

1

Vacuum line

3

Vacuum pump

5

Seal

2

Bolts

4

Oil pump shaft

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

 Warning

Risk of injury. Moving parts can pinch, crush or, in extreme cases even sever extremities.

No parts of the body or limbs should be within the operating area of mechanical components when moving components.

AS00.00-Z-0009-01A

 Danger

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

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

AS00.00-Z-0010-01A

 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

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

 

Remove/install

1

Perform disable for the high-voltage on-board electrical system

Model 212.098/298 with engine 651
with code ME04 (Mild hybrid drive)

AR54.10-P-1150EH

2

Open engine hood and raise to vertical position

Model 204.0/2/9, 218, 221 with engine 651

Model 172.4 with engine 651

AR88.40-P-1000V

Model 204.3, 207, 212 with engine 651

AR88.40-P-1000EW

3

Remove upper engine cover

4

Remove throttle valve actuator

AR09.41-P-1321CD

5.1

Remove bottom part of soundproofing

Model 172.4, 204.0/2/3, 207, 212, 218 with engine 651

Model 172.4 with engine 651

AR94.30-P-5300W

Model 204.0/2/3, 207, 212, 218 with engine 651

AR94.30-P-5300EW

 Installation: Install the bottom section of the soundproofing only after an engine test run and leak test have been performed.

5.2

Remove lower engine compartment paneling

Model 204.9, 221 with engine 651

Model 204.9 with engine 651

AR61.20-P-1105CY

Model 221 with engine 651
except code Z07 (Top protection)

AR61.20-P-1105SX

 Installation: Only install lower engine compartment lining after engine test run and leak test.

6

Remove charge air temperature sensor (B178)

AR09.41-P-2002CD

 Installation: Replace sealing ring.

7

Remove engine charge air duct downstream of charge air cooler

AR09.41-P-8624CD

8

Release and detach vacuum line (1)

9

Unscrew bolts (2)

 Bolt, vacuum pump to crankcase or oil pump

*BA43.05-P-1001-01J

10

Remove vacuum pump (3)

 Installation: Insert vacuum pump (3) onto shaft of oil pump (4).

 Installation: Install new seal (5).

11

Clean sealing surface


The sealing surface should be free of grease and dust.
Leakage can occur otherwise.

12

Install in the reverse order



Check

 Warning

Risk of burn injuries, suffocation and poisoning when working on the exhaust system and the components connected to it. Risk of suffocation and risk of poisoning caused by inhalation of gaseous and solid components of the exhaust. Risk of poisoning caused by skin contact with solid components of the exhaust.

Wear protective clothing and safety glasses. Use the extraction system. Move people out of the hazard area.

AS49.00-Z-0001-01A

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

13

Perform engine test run, check engine and brake system for leaktightness and proper operation

 Vacuum pump

Number

Designation

Engine 651 in model 117, 156, 166, 172, 176, 204, 207, 218, 221, 246, 253

Engine 651 in model 205, 212, 222

BA43.05-P-1001-01J

Bolt, vacuum pump to crankcase or oil pump

Nm

9

9