[Penguin]

А вот ещё ПРУФ
http://www.meeknet.co.uk/E38/ABS/Index.htm

Особенно вот.

Pre-charge pump failure is suspected when the lights only come on when the speed hits around 30MPH, or lower if the car is accelerated more harshly. This may only happen rarely, but will get more common as time goes on. Diagnostics will show 'Error 92 pressure sensor (pre charging pump)'.

The pre-charge pump lives right next to the brake master cylinder and is used to increase the available brake fluid pressure which is used for the DSC system to apply brakes to individual wheels. The pre-charge pump first runs under the following conditions:

Speed greater than 30KPH

Engine speed greater than 2000RPM

Engine torque greater than 100NM

This means that if you accelerate very carefully you can stop the ABS, ASC and Brake lights illuminating until a higher speed is reached. This is a good indication (without the use of diagnostics) to ensure that the pre-charge pump is the cause of the failure. To be sure the pump is at fault, you can connect 12V to the in-line connector by disconnecting the connector pair and applying 12V, positive to RED and negative to BLACK, with 12V connected the pump should run. If it just goes 'bonk' (like mine did) it is dead as a Dodo.

Прям мой случай .....