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Home >> BMW >> 2009 >> X5 30i >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Electrical System - Repair (N52) >> Control Unit Box >> 12 90 100 Replacing Fan For Electronics Box
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12 90 100 Replacing Fan For Electronics Box

NOTE: Follow instructions for removing and installing electronic control units. See 12 00... Instructions for Removing And Installing Electronic Control Units 

Necessary preliminary tasks: 

Unclip plug (1).

Remove DDE control unit (3).

Remove relay plug-in (5) towards top.

Release screws (4).

Lift out device carrier (2).

Fig 1: Removing Device Carrier
G00497008Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten plug connection and disconnect.

Release air cowl (1).

Remove electric fan (2) with bracket.

Fig 2: Remove Electric Fan (2) With Bracket
G00497009Courtesy of BMW OF NORTH AMERICA, INC.

Add final details to vehicle.

Read fault memory.

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