Z Series E85 Z4 3.0Si (N52) ROADST
11 12 000
Removing and installing/sealing cylinder head
cover (N52)
Important!
Aluminium-magnesium materials.
No steel screws/bolts may be used due to the threat of
electrochemical corrosion.
A magnesium crankcase requires aluminium screws/bolts
exclusively.
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.
Jointing torque and angle of rotation must be observed
without fail (risk of damage).
Necessary preliminary tasks:
•
Remove acoustic cover.
•
Remove rod-type ignition coils.
•
Unclip wiring harness for fuel injectors.
•
Remove tension strut.
•
Remove clean air duct.
Unlock and detach engine vent hose (1).
If necessary, pull off metal bracket (2) in direction of arrow.
Release screws (3).
Tightening torque: 11 37 3AZ
.
Remove servodrive (4) in direction of arrow.
If necessary, release nuts (5).
If necessary, remove secondary air valve (6).
Installation:
Replace aluminium screws.
RA Removing and installing/sealing cylinder head cover (N52)
BMW AG - TIS
16.02.2013 21:51
Issue status (12/2007) Valid only until next DVD is issued
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