Brake test on the rear axle on the brake test stand (all-wheel drive)

Position the vehicle with its rear axle on the brake test stand.
Position the selector lever in selector lever position N (neutral).
Run engine at idle speed.
The brake test stand starts automatically.

The control unit runs a plausibility check (comparison of wheel RPM) to identify within a few seconds that a vehicle is on the brake test stand and changes to brake test stand mode.

Courtesy of BMW OF NORTH AMERICA, INC.

If brake test stand mode has been activated and the EMF actuators are open, the indicator light for the electromechanical parking brake (EMF) flashes slowly.
Press brake pedal.
Read the maximum brake forces on the left and right.