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Home >> BMW >> 2004 >> X3 30i, Standard >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Engine Electrical System - Repair (M54) >> Electronic Switching Or Control Units >> 12 14 550 Replacing control unit (DME)

12 14 550 Replacing control unit (DME)

CAUTION: Follow instructions for REMOVING AND INSTALLING ELECTRONIC CONTROL UNITS 

Read the fault memory

Switch off ignition

Detach sealing strips (1).

G00593660Courtesy of BMW OF NORTH AMERICA, INC.

Turn tommy bar through approx 90°.

Remove cover.

G00593661Courtesy of BMW OF NORTH AMERICA, INC.

Release lock (1).

Remove air funnel (2) towards top.

G00593662Courtesy of BMW OF NORTH AMERICA, INC.

Release screws.

Tightening torque, 12 90 4AZ.

Remove cover (1) on control unit box.

G00593663Courtesy of BMW OF NORTH AMERICA, INC.

Installation: 

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

G00593664Courtesy of BMW OF NORTH AMERICA, INC.

Disconnect plug connectors (1).

Unlock DME control unit (2) and remove.

For subsequent procedure, follow ionstructions of DIS Tester.

G00593665Courtesy of BMW OF NORTH AMERICA, INC.
IMPORTANT:
  • Code control unit
  • Program control unit
NOTE:
  • Integrate fault memory
  • Check stored fault messages
  • Rectify faults
  • Then clear fault memory