Z Series E85 Z4 3.0i (M54) ROADST
12 51 001
Replacing wiring harness section for engine
(M54)
Necessary preliminary tasks:
•
Switch off ignition
•
Follow instructions for disconnecting and connecting battery
Disconnect battery negative lead and cover
•
Remove intake air manifold
•
Remove ignition coil cover
•
Remove reinforcement plate
Work step
Note:
Unlock plug on oil level sensor and disconnect
Unlock plug on crankshaft sensor and disconnect
Unlock plug on coolant temperature sensor and disconnect
Unlock plug on throttle valve assembly and disconnect
Unlock plugs on both solenoid valves for VANOS and disconnect
Unlock plugs on inlet and exhaust camshaft sensors and disconnect
Unlock plug on oil pressure switch and disconnect
Unlock plug on knock sensors and disconnect
Unlock plug on alternator and disconnect
Detach battery positive lead from alternator
Detach battery positive lead and control lead from starter motor
Unlock plug connections in electronics box and disconnect:
•
Control unit
•
DME relay
•
Remove electronics box
cover.
•
Do not remove control
unit.
RA Replacing wiring harness section for engine (M54)
BMW AG - TIS
15.02.2013 12:28
Issue status (12/2007) Valid only until next DVD is issued
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