BMW X5: Removing And Installing/Sealing Left Cylinder Head Cover (N62/N62TU)

(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. 28: Identifying Cable Holder And Cables Tank Venting Valve

Unlock plug (1) and remove.

Fig. 29: Identifying Plug

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. 30: Locating Sealing Rings, Sensors And Sealing Element

Removing ignition coils.

Release both grounding cables.

Unlock and detach vent hose.

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

Fig. 31: Locating Cable Duct

Remove servomotor for left eccentric shaft.

Unfasten screws.

Remove spacer (3) upwards.

Installation:

Replace sealing ring.

Fig. 32: Locating Sealing Ring

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

If necessary, pull out oil dipstick.

Remove cylinder head cover.

Fig. 33: Identifying Screw Connections

Installation:

Note installation direction of sealing ring (1).

Groove in sealing ring (1) points outwards.

Fig. 34: Identifying Sealing Ring

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

Fig. 35: Identifying Sealing Ring Into Cylinder Head Cover

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. 36: Locating Seal

Installation:

Replace spark plug domes.

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

Fig. 37: Identifying Spark Plug Domes

Installation:

Install spark plug domes in cylinder head.

When fitting cylinder head cover:

Align spark plug domes to cylinder head cover.

Fig. 38: Installing Spark Plug Domes In Cylinder Head

Installation:

Clean seal residue from sealing surfaces.

Coat contact surfaces of joint with Drei Bond 1209.

Fig. 39: Locating Seal Residue From Sealing Surfaces

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. 40: Locating Transition Area Of Half-Moon Sections

Replace sealing elements (1).

Fig. 41: Identifying Sealing Elements

Installation:

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

Fig. 42: Locating Gasket Correctly Seated On Rear Side Of Cylinder Head

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. 43: Identifying Screw Connections

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