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Home >> BMW >> 2009 >> 323i Standard >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Engine Electrical System - Repair - E90 (N52) >> 1251 Engine Wiring Loom >> 12 51 001 Replacing wiring harness section for engine (N52, N52K) >> Illustration shows cylinder head cover

Illustration shows cylinder head cover

Release screws and remove holder (1).

Tightening torque 12 52 1AZ .

Fig 1: Locating Screws And Holder
G04751360Courtesy of BMW OF NORTH AMERICA, INC.
CYLINDER HEAD COVER ILLUSTRATION CHART

Work step Note
Unlock plug connections on control sensors and disconnect  
Unlock plug on alternator and disconnect  
Unlock plug connection on knock sensors and disconnect  
Unlock plug on crankshaft sensor and disconnect  
Unlock plug on starter motor and disconnect  
Unlock plug connections on monitor sensors and disconnect  
Unlock plug on oil condition sensor and disconnect  
NOTE: Check stored fault messages.

Delete fault memory.