Installing Integral ABS pressure modu- lator e Attention: Do not bend the brake lines. • Installation is the reverse of the removal proce- dure: pay particular attention to the following. • Disconnect the brake lines from the ABS pres- sure modulator. 34.15 Note: e Always replace the seals (square-section rings) be- Attention: tween the brake lines and the pressure modulator Do not permit brake fluid to enter the plugs. when you replace the brake lines. • Disconnect plugs (3) of the front and rear wheel d circuit reservoirs. • Unlock plug (4) (arrow) and disconnect the plug. Warning: • Disconnect plug from Hall sensor.
Always fit new spring clips each time the plugs are • Remove Motronic control unit. disconnected. Ensure correct positioning. • Release ABS pressure modulator and pull it carefully to the left to remove. • Install new spring clips. • Slip the protective caps up the brake lines. • Clip in brake lines. • Check that spring clips are correctly positioned (arrows). • Seat the protective caps on the connectors. • Connect the battery. • Fill and bleed the brake system (a 34.19). • After all the work on the brake system has been completed, run a bleed test using the BMW MoDiTeC (a 34.29). L Note:
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. X Tightening torque: ABS pressure modulator to battery carrier ... 10 Nm ABS pressure modulator to holder ................. 7 Nm