11 62 140 Removing and installing/replacing both exhaust manifolds with catalytic converter (M54 X3): Notes

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:

Remove HVAC microfilter compartment.
Secure engine in installation position. Refer to SECURING ENGINE WITH SPECIAL TOOL IN INSTALLATION POSITION (M54) .
Remove exhaust system. Refer to 18 00 020 REMOVING AND INSTALLING COMPLETE EXHAUST SYSTEM (M54) .
Remove oxygen sensors. Refer to 11 78 511 REPLACING OXYGEN CONTROL SENSOR (CYLINDERS 1-3) , 11 78 512 REPLACING OXYGEN CONTROL SENSOR (CYLINDERS 4-6) , 11 78 611 REPLACING OXYGEN MONITOR SENSOR (CYLINDERS 1-3) and 11 78 612 REPLACING OXYGEN MONITOR SENSOR (CYLINDERS 4-6) .
Lower front axle.

NOTE: It is not necessary to perform a wheel alignment on the front axle when the front axle is lowered.