Cylinder Head Removal And Installation - BMW 1999-2005 M3 Service Manual

Cylinder Head Removal and Installation

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General
This group covers E46 cylinder head
removal and installation as well as
cylinder head/valve diagnosis
procedures.
The information given in this repair
group assumes that the engine is
installed in the engine bay. In order to
remove the cylinder head from the
engine block, the VANOS control unit
and the camshafts must be removed
from the cylinder head. For cylinder
head and valvetrain reconditioning
information, see
and Valvetrain.
Note:
If a head gasket problem is suspected,
a compression test or leak-down test
will usually detect the fault. See
Diagnostic Testing
Special tools
Special BMW service tools are required
to properly remove and install the
cylinder head on engines covered by
this manual. The special tools are used
to time the valvetrain to the crankshaft,
to remove the VANOS control unit, the
camshafts and the Torx (E12) head
bolts. Read the entire procedure
through before beginning the job.
Rotary angle dial gauge BMW special
tool 00 9 120
113-1
116 Cylinder Head
later in this group.
2/25/2009 9:48 PM