11 12 006 Removing And Installing/Sealing Right Cylinder Head Cover (N62/N62TU)

WARNING: This page is about a different variant/trim than selected.

(cylinder bank 1 to 4)

Remove design cover, if equipped.

Unfasten acoustic cover screws. Raise acoustic cover and remove towards front.

Remove electronics box cover.

Remove electronics box seal.

These work steps are described in REPLACING CONTROL UNIT .

Remove ignition coil cover.

Remove intake hose with air-mass flow sensor.

NOTE: For purposes of clarity, the following work steps are shown on the engine after it has been removed.

Unlock plug (1) and remove.

Fig 1: Identifying Plug

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Release screws and remove sealing element (2). Remove sensors (3 and 4).

Installation:

Replace sealing element (2).

Replace sealing rings on sensors (3 and 4).

Fig 2: Locating Sealing Element And Sensor

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Removing ignition coils.

Release both grounding cables.

Unlock and detach vent hose.

Unclip cable duct (1) and remove cable from holder.

Fig 3: Removing Cable From Holder

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Remove servomotor for right eccentric shaft . See 11 37 024 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR RIGHT ECCENTRIC SHAFT (N62/N62TU) .

Unfasten screws.

Remove spacer (3) upwards.

Replace seal.

Fig 4: Locating Spacer

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Remove injection pipe.

Release screw connections (1, 2, 3 and 4).

Remove cylinder-head cover.

Fig 5: Identifying Cylinder-Head Cover Screw Connections

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Installation:

Note installation direction of sealing ring (1).

Groove in sealing ring (1) points outwards.

Fig 6: Identifying Sealing Ring

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Replace sealing ring (1) and press into cylinder head cover until flush.

Fig 7: Identifying Sealing Ring Into Cylinder Head Cover

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Installation:

Replace seal (1).

Align gasket (1) loosely in cover groove. Starting at corner radii, secure gasket (1) in cover groove and press into groove so that it is free of tension.

Installation:

Make sure sliding rails are correctly seated when mounting on cylinder head.

Fig 8: Locating Cylinder Head Cover Gasket

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Installation:

Replace spark plug domes.

Coat rubber seals on spark plug dome (1) with anti-friction rubber coating.

Fig 9: Identifying Spark Plug Domes

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Installation:

Install spark plug domes in cylinder head.

When fitting cylinder head cover:

Align spark plug domes to cylinder head cover.

Fig 10: Installing Spark Plug Domes In Cylinder Head

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Installation:

Clean seal residue from sealing surfaces.

Coat contact surfaces of joint with Drei Bond 1209.

Fig 11: Locating Seal Residue From Sealing Surfaces

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Installation:

Clean seal residue from sealing surfaces.

Apply a thin, uniform bead of Drei Bond 1209 sealing agent to transition area of half-moon sections.

Fig 12: Locating Sealing Agent To Transition Area Of Half-Moon Sections

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Replace sealing elements (1).

Fig 13: Identifying Sealing Elements

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Installation:

Make sure gasket is correctly seated at sides and on rear side of cylinder head.

Fig 14: Locating Correctly Seated On Rear Side Of Cylinder Head

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Installation:

Screw connections (1, 2, 3 and 4) of cylinder head cover are different .

Replace screw connections (3).

Move cylinder head cover with gasket into assembly position.

Secure cylinder head cover, starting with screw connection (4) from front .

Tighten down screw connections (1, 2 and 3) in diagonal sequence from inside to outside.

Fig 15: Identifying Cylinder-Head Cover Screw Connections

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