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Home >> BMW >> 2012 >> M3 2D Convertible, Standard Trans >> Repair and Diagnosis >> Engine Performance >> Remove, Overhaul & Install >> Engine Electrical System - Repair -- M3 Convertible >> Control Unit Box >> 12 90 100 Replacing fan for electronics box

12 90 100 Replacing fan for electronics box

Necessary preliminary tasks: 

Pull back carpet.

Release lower nut on fuse carrier holder.

Pull holder slightly towards front.

Fig 1: Locating Lower Nut On Fuse Carrier Holder
G05758751Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connections for fan motor (1).

Release screws (2). Remove fan.

Fig 2: Identifying Fan Motor And Screws
G05758752Courtesy of BMW OF NORTH AMERICA, INC.

Add final details to vehicle.

Read fault memory.