BMW 5251 Service Manual page 106

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Cylinder Head Removal and Installation
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Remove secondary air inject~on check valve (arrow).
4
Remove cylinder head top cover:
Remove plastic trim caps (arrows).
Remove engine oil filler cap.
Remove cover hold down fasteners and lift off cover.
4
Remove ignition coils:
Disconnect ignition coil harness connectors.
.
Remove coil mounting fasteners.
Remove coils.
Remove ground straps.
NOTE-
Make note of ground wire at mounting studs arrangement
during removal.
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Remove sparlc plugs.
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Remove cylinder head cover mounting fasteners and remove
cylinder head cover.
NOTE-
The cylinder head cover mounting bolt insulators and gas-
l e t s should be reinstalled in their original locations. Make
note of their arrangement during removal.