12 63 520 Replacing DME master relay

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.

Necessary preliminary tasks:

Switch off ignition
Connect DIS Tester

Release screws (1).

Fig 1: Removing Cover

Courtesy of BMW OF NORTH AMERICA, INC.

Installation:

Tightening torque 12 90 4AZ .

Remove cover (1).

Arrangement:

Fig 2: Identifying DME Master Relay

Courtesy of BMW OF NORTH AMERICA, INC.

Notes on troubleshooting:

If the starter motor cranks the engine during the starting sequence but the engine fails to fire, then:

Check engine fuses
If fuses are blown, replace them completely with fuse holder
Find out why fuses have blown
Continue troubleshooting as per DIS instructions.