11 12 100 Removing and installing cylinder head

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2010 BMW 535xi, 2010 BMW 535i, 2009 BMW 535xi, 2009 BMW 535i, and 2008 BMW 535xi. However, it is still accessible from the selected car via links, so may be relevant.

Special tools required:

IMPORTANT:

Aluminium screws/bolts must be replaced each time they are released .

The end faces of aluminium screws/bolts are painted blue for the purposes of reliable identification.

Risk of damage!

Jointing torque and angle of rotation must be observed without fail.

Fit new cylinder head screws.

Do not wash off bolt coating.

There must be no coolant, water or engine oil in the pocket holes.

Risk of corrosion and cracking!

Necessary preliminary tasks:

Remove engine
Remove INLET AND EXHAUST ADJUSTMENT UNIT

Release screws (1).

Unclip timing chain module (3) at junction (2) and remove towards top.

Set down timing chain.

IMPORTANT: If the timing chain is stowed in the gear case, the crankshaft must no longer be rotated.
This would cause the timing chain on the crankshaft sprocket wheel to jam or jump.

Installation note:

Fig 1: Identifying Timing Chain Module, Junction And Screws

Courtesy of BMW OF NORTH AMERICA, INC.

The timing chain is lifted out with a hook only during assembly.

Release screws (1).

Tightening torque 11 12 3AZ .

NOTE: Screw (2) can only be released when the timing chain module is pressed forward slightly.

IMPORTANT: Secure bolt (2) with a gripper against falling down.

Release bolt (2).

Fig 2: Identifying Screws

Courtesy of BMW OF NORTH AMERICA, INC.

IMPORTANT: Observe different bolt heads.

Release M9 cylinder head bolts (1) with special tool 11 4 420.

Tightening torque 11 12 2AZ .

Fig 3: Releasing M9 Cylinder Head Bolts Using Special Tool (11 4 420)

Courtesy of BMW OF NORTH AMERICA, INC.

Release M10 cylinder head bolts (1) with special tool 11 8 580 from outside inwards.

Tightening torque 11 12 1AZ .

IMPORTANT:

All cylinder head bolts must be replaced.

Risk of damage!

Jointing torque and angle of rotation must be observed without fail.

Fig 4: Releasing M10 Cylinder Head Bolts Using Special Tool (11 8 580)

Courtesy of BMW OF NORTH AMERICA, INC.

Shims (1) of cylinder head bolts can only be removed with a magnet (2) between cylinder head and bearing strip.

Fig 5: Removing Shims Of Cylinder Head Bolts Using Magnet

Courtesy of BMW OF NORTH AMERICA, INC.

Secure special tool 11 0 320 with existing cylinder head cover bolts (1).

Tightening torque 11 12 4AZ .

IMPORTANT: Removing and install cylinder head with a second person helping.
Weight of cylinder head with add-on parts is approx. 40 kg.
Do not set cylinder head down on sealing face, risk of damage to valves.

Fig 6: Securing Special Tool (11 0 320) With Existing Cylinder Head Cover Bolts