Remove/install front cover on cylinder head

AR01.30-P-5700TT

Remove/install front cover on cylinder head

2.3.10

 

Remove/install



Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

1

Turn key in ignition lock to position "0"

2

Remove bottom engine compartment paneling

Model 211.08 /09 /28 /29

AR61.20-P-1105T

 Installation: Only install bottom engine compartment paneling after leak test.

3

Remove front engine cover

 Pull the front engine cover upward and out of the mountings.

4

Remove front right intake air duct

See "Remove air filter housing".

AR09.10-P-1150TS

5

Remove air shutoff valve (1) at the right cylinder head

All except model 211.057, 257 /219.357

AR14.30-P-7200TS

6

Remove bolts (2a) and set bracket (2) for front engine cover with air pump switchover valve (Y32) to one side

All except model 211.057, 257 /219.357

 Do not detach lines at the air pump switchover valve (Y32).



*BA01.30-P-1009-01O

7

Remove hose (3)

All except model 211.057, 257 /219.357

8

Remove bolts (5) and place shutoff valve for low-temperature cooling system (Y125) with lines still attached to one side

Model 211.057/ 257, 219.357



*BA01.30-P-1019-01O

9

Remove bolts (6a), loosen bolt (6b) and swivel holder to the side

Model 211.057/ 257, 219.357



*BA01.30-P-1018-01O

10

Disconnect electrical connectors at right camshaft intake solenoid (Y49/5) and at right camshaft exhaust solenoid (Y49/7)

11

Disconnect electrical connectors at right intake camshaft Hall sensor (B6/5) and at right exhaust camshaft Hall sensor (B6/7)

12

Remove bolts (4a, 7 pieces) from front cover (4)

 Model 211.08 /09 /28 /29: Press oil dipstick guide tube carefully to the side in order to remove the front cover (4). Do not pull oil dipstick guide tube out of oil pan.

 Installation: Check seating of the seal for the oil dipstick guide tube in the oil pan to avoid oil leakage.

 Bolt, front cover to cylinder head

*BA01.30-P-1006-01O

 Mounting screw for oil dipstick guide tube

*BA01.45-P-1006-01M

13

Carefully loosen front cover (4) on prying lugs (4b) and detach to the front

 Pay attention to fitted sleeves in area of outer threaded connections (arrows).

 Installation: Apply sealant to front cover (4).



Notes on sealant path for front cover to cylinder head

AH01.30-P-1000-02V



*112589002500

Loctite sealant 5970

*BR00.45-Z-1013-01A



Clean

14

Clean sealing surfaces on front cover (4), on cylinder head cover and on cylinder head

 Do not use any sharp-edged tools or abrasive paper as this will damage the sealing surfaces.

AR01.00-P-0050-01A

Loctite 7200

*BR00.45-Z-1038-04A

Cleaning spray, Loctite 7063 (150ml)

*BR00.45-Z-1046-04A

15

Detach the right intake camshaft Hall sensor (B6/5) and right exhaust camshaft Hall sensor (B6/7) from front cover (4)

When replacing the front cover (4)



*BA15.10-P-1002-03E

16

Detach right intake camshaft solenoid (Y49/5) and right exhaust camshaft solenoid (Y49/7) from front cover (4)

When replacing the front cover (4)



*BA15.10-P-1003-03E

17

Install in the reverse order



Checking

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

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

AS00.00-Z-0005-01A

18

Conduct engine test run and check engine for leaks

Number

Designation

Engine
272

Engine
273

BA01.30-P-1006-01O

Bolt, front cover to cylinder head

M6

Nm

9

9

BA01.30-P-1009-01O

Bolt, switchover valve bracket to cylinder head

M6

Nm

9

9

BA01.30-P-1018-01O

Bolt, NT circuit coolant line bracket to cylinder head or cylinder head front cover

Nm

9

-

BA01.30-P-1019-01O

Bolt, shutoff valve bracket to cylinder head

Nm

9

-

Number

Designation

Engine 272

Engine 273

BA01.45-P-1006-01M

Mounting bolt for oil dipstick guide tube

Nm

9

9

Number

Designation

Engine
272

Engine
273

BA15.10-P-1002-03E

Bolt, camshaft Hall sensor to front cover on cylinder head

Nm

8

8

BA15.10-P-1003-03E

Bolt, camshaft solenoid to front cover
to cylinder head

Nm

8

8

Number

Designation

Order number

BR00.45-Z-1013-01A

Loctite sealant 5970

A 003 989 98 20

BR00.45-Z-1038-04A

Loctite 7200

Henkel Loctite Deutschland GmbH
Arabellastrasse 17
81925 München
Germany
Tel. +49 899268-0
Fax + 49 899101978
www.Loctite.de

BR00.45-Z-1046-04A

Cleaning spray, Loctite 7063 (150ml)

A 001 986 71 71 10