12 14 550 Replacing control unit (DME) (N52K)

WARNING: This page is about a different variant/trim than selected.

IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DAMAGE (ESD PROTECTION)

Necessary preliminary tasks:

IMPORTANT: Follow instructions for REMOVING AND INSTALLING CONTROL UNITS

Replacement:

IMPORTANT: It is absolutely essential to read out the fault memory with the BMW diagnosis system and to create a fault memory printout.

Switch off ignition.

Release bolts along line (1).

Tightening torque 12 90 1AZ .

Remove electronics box cover.

Fig 1: Identifying Electronic Box Cover Mounting Bolts

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Unlock battery positive lead (1), detach and lay to one side.

Release locks (2) in direction of arrow and pull control unit upwards slightly.

Fig 2: Opening Control Unit Locks

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Pull control unit (1) upwards slightly until plug (2) can be released from control unit in direction of arrow.

Unlock plug (2) and detach from control unit (1).

Fig 3: Pulling Control Unit Upwards

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Lift out control unit (1).

Fig 4: Lifting Control Unit

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NOTE: Check stored fault messages.
clear fault memory.