12 14 550 Replacing control unit (Digital Motor Electronics) (M62, M54)

Connect DIS Tester or MoDiC.

CAUTION: Follow instructions for removing and installing electronic control units.

Read fault memory.

Switch off ignition.

Detach sealing strips (1).

Fig 1: Detaching Sealing Strips

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Courtesy of BMW OF NORTH AMERICA, INC.

Turn bar through approx. 90°.

Remove cover.

Fig 2: Turning Tommy Bar Through Approx 90

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Release lock (1).

Remove air funnel (2) towards top.

Fig 3: Releasing Lock

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Release screws.

For tightening torque, see 12 90 4AZ in ENGINE ELECTRICAL SYSTEM - TIGHTENING TORQUES .

Remove cover (1) on control unit box.

Fig 4: Removing Cover On Control Unit Box

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Installation:

Insert fixtures (1) of cover for control unit box in openings (2).

Fig 5: Inserting Fixtures Of Cover For Control Unit Box In Openings

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Disconnect plug connections (1).

Unlock DME control unit (2) and remove.

For subsequent procedure, follow instructions of DIS Tester.

Fig 6: Disconnecting Plug Connections

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Courtesy of BMW OF NORTH AMERICA, INC.

Code control unit.

Program control unit.

NOTE: Interrogate fault memory of DME control module.
Check stored fault messages.
Rectify faults.
Then clear fault memory.