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

(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. 44: 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. 45: Locating Sealing Element And Sensor

Removing ignition coils.

Release both grounding cables.

Unlock and detach vent hose.

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

Fig. 46: Removing Cable From Holder

Remove servomotor for right eccentric shaft.

Unfasten screws.

Remove spacer (3) upwards.

Replace seal.

Fig. 47: Locating Spacer

Remove injection pipe.

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

Remove cylinder-head cover.

Fig. 48: Identifying Cylinder-Head Cover Screw Connections

Installation:

Note installation direction of sealing ring (1).

Groove in sealing ring (1) points outwards.

Fig. 49: Identifying Sealing Ring

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

Fig. 50: 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.

Installation:

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

Fig. 51: Locating Cylinder Head Cover Gasket

Installation:

Replace spark plug domes.

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

Fig. 52: 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. 53: Installing Spark Plug Domes In Cylinder Head

Installation:

Clean seal residue from sealing surfaces.

Coat contact surfaces of joint with Drei Bond 1209.

Fig. 54: 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. 55: Locating Sealing Agent To Transition Area Of Half-Moon Sections

Replace sealing elements (1).

Fig. 56: Identifying Sealing Elements

Installation:

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

Fig. 57: Locating 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).

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. 58: Identifying Cylinder-Head Cover Screw Connections

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