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12 90 100 Replacing fan for electronics box

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2006 BMW X5, 2006 BMW X3, 2005 BMW X5, 2005 BMW X3, and 2004 BMW X5. However, it is still accessible from the selected car via links, so may be relevant.

Unfasten screws.

Open electronics box cover (1).

Release relay plug on reverse side of cover.

Remove cover.

Installation: 

Make sure that cover is correctly inserted in hinges of electronics box lower section (watertightness).

Fig 1: Identifying Electronics Box Cover
G04748555Courtesy of BMW OF NORTH AMERICA, INC.

Raise control unit slightly.

Unlock plug connection (1) and detach from equipment carrier.

Unfasten plug connection and disconnect.

Fig 2: Identifying Plug Connection
G04748572Courtesy of BMW OF NORTH AMERICA, INC.

Lever out expander rivet.

Release screws (1).

Remove cover (2).

Fig 3: Identifying Screws & Cover
G04748573Courtesy of BMW OF NORTH AMERICA, INC.

Unfasten screws.

Remove fan (1).

Fig 4: Locating Engine Control Unit Fan, Cable Tie, And Screws
G04748574Courtesy of BMW OF NORTH AMERICA, INC.
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