Necessary preliminary tasks:
IMPORTANT: Disc wheels are not allowed to be repaired!
Mount disc wheel in balancing machine.
Use suitable wheel centering element supplied with corresponding balancing machine.
Place dial gauge sensor on rim shoulder.
Turn wheel by hand and measure max. radial runout .
Carry out measurement on both rim shoulder sides.
NOTE: Dial gauge must be vertical to rim shoulder.
Position sensor on rim flange.
Turn wheel by hand and measure max. lateral runout . Carry out measurement on both rim flanges.
NOTE: Dial gauge must be vertical to rim flange.
IMPORTANT: Avoid clamping errors during subsequent installation work.
BMW X3 Service & Repair Manual > Ignition coil: Replacing ignition coils (N55)
Necessary preliminary tasks:
Read out the fault memory of the DME control unit.
Check stored fault messages and process procedure.
Switch off ignition.
Remove IGNITION COIL COVER.
Remove CLEAN AIR PIPE .
IMPORTANT:
Ignition coils must not be contaminated by fuel.
The resistan ...