11 12 005 Removing And Installing/Sealing Left Cylinder Head Cover (N62/N62TU)

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

(cylinder bank 5 to 8)

Necessary preliminary tasks:

Remove design cover, if equipped.
Unfasten acoustic cover screws. Raise acoustic cover and remove towards front.
Remove ignition coil cover

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

Unclip cable holder (1) with cables.

Pull tank venting valve (2) off holder.

Fig 1: Identifying Cable Holder And Cables Tank Venting Valve

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Unlock plug (1) and remove.

Fig 2: 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 3: Locating Sealing Rings, Sensors And Sealing Element

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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 4: Locating Cable Duct

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Remove servomotor for left eccentric shaft . See 11 37 022 REMOVING AND INSTALLING/REPLACING SERVOMOTOR FOR LEFT ECCENTRIC SHAFT (N62/N62TU) .

Unfasten screws.

Remove spacer (3) upwards.

Installation:

Replace sealing ring.

Fig 5: Locating Sealing Ring

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Remove injection pipe

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

If necessary, pull out oil dipstick.

Remove cylinder head cover.

Fig 6: Identifying Screw Connections

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Installation:

Note installation direction of sealing ring (1).

Groove in sealing ring (1) points outwards.

Fig 7: Identifying Sealing Ring

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

Fig 8: 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.

Fig 9: Locating Seal

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Installation:

Replace spark plug domes.

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

Fig 10: 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 11: 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 12: 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 13: Locating Transition Area Of Half-Moon Sections

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Replace sealing elements (1).

Fig 14: Identifying Sealing Elements

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Installation:

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

Fig 15: Locating Gasket 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).

Insert screw connections (1, 2 and 3) without pretension and align cover.

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

Fig 16: Identifying Screw Connections

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