Do not bend the brake lines.
Disconnect the brake lines from the ABS pres-
Do not permit brake fluid to enter the plugs.
Disconnect plugs (3) of the front and rear wheel
Unlock plug (4) (arrow) and disconnect the plug.
Disconnect plug from Hall sensor.
Remove Motronic control unit.
Release ABS pressure modulator and pull it
carefully to the left to remove.
Installing Integral ABS pressure modu-
Installation is the reverse of the removal proce-
dure: pay particular attention to the following.
Always replace the seals (square-section rings) be-
tween the brake lines and the pressure modulator
when you replace the brake lines.
Always fit new spring clips each time the plugs are
disconnected. Ensure correct positioning.
Install new spring clips.
Slip the protective caps up the brake lines.
Clip in brake lines.
Check that spring clips are correctly positioned
Seat the protective caps on the connectors.
Connect the battery.
Fill and bleed the brake system (
After all the work on the brake system has been
completed, run a bleed test using the
BMW MoDiTeC (
Disconnecting the battery means that the entries in
the fault memory of the Motronic MA2.4 control unit
are deleted and the adaptation values are reset.
This can temporarily impair the operating character-
istics when the engine is restarted.
Switch on the ignition.
Without starting the engine, fully open the throttle
once or twice so that the Motronic control unit
can register the throttle-valve positions.
ABS pressure modulator to battery carrier ... 10 Nm
ABS pressure modulator to holder ................. 7 Nm