11 12 100 Removing and installing/replacing cylinder head (M52TU / M54 / M56): Installation

WARNING: This page does not describe the selected car, but rather 16 other vehicles, including the 2006 BMW 330Ci, 2005 BMW 330xi, 2005 BMW 330i, 2005 BMW 330Ci, and 2004 BMW 330xi. However, it is still accessible from the selected car via links, so may be relevant.

Installation of cylinder head is described separately from removal.

Clean sealing faces of cylinder head and engine block; If necessary, remove traces of gasket with hardwood spatula.

Make sure no gasket remnants drop into oil and cooling channels.

Check adapter sleeves for damage and correct installation position.

Apply permanently elastic sealing compound Drei Bond 1209 (refer to BMW Parts Service) to joints to timing case cover.

Replace cylinder head gasket.

Fig 1: Checking Adapter Sleeves For Damage & Correcting Installation Position

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NOTE: A cylinder head seal 0.3 mm thicker than usual can be obtained for machined (milled) cylinder heads.

Fig 2: Identifying Cylinder Head Seal

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CAUTION: Different cylinder head bolts for M52TU engine: M10x95 for engines with cast iron engine block. M10x110 for engines with aluminum engine block.

Use cylinder head bolts only once.

There must be no oil in the tapped holes of the engine block and the timing case cover.

Risk of cracking and distorted tightening values.

Put the cylinder head on.

Apply a light coat of oil to washer contact area and thread of new cylinder head bolts.

Tighten down cylinder head bolts in sequence 1 to 14.

Tightening torque. Refer to ENGINE - TIGHTENING TORQUES - 3-SERIES (E46) .

NOTE: Use special tool 00 9 120 for torsion angle tightening.

Fig 3: Using Special Tool 00 9 120 For Torsion Angle Tightening

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Install chain guide.

Fig 4: Installing Chain Guide

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Insert screws and tighten down screw connection between timing case cover and cylinder head.

Install camshafts.

Install double VANOS adjustment unit.

Assemble engine.

Fig 5: Inserting Screws & Tightening Down Screw Connection Between Timing Case Cover

Courtesy of BMW OF NORTH AMERICA, INC.