Z Series E85 Z4 2.5Si (N52) ROADST
12 14 600
Removing/replacing knock sensors (N52,
N52K, N51)
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:
•
Read out fault memory of DME control unit
•
Switch off ignition
•
Disconnect battery negative lead
•
Remove intake air manifold
Unlock plug (1) and remove.
RA Removing/replacing knock sensors (N52, N52K, N51)
BMW AG - TIS
13.02.2013 09:13
Issue status (12/2007) Valid only until next DVD is issued
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