An electrically powered compressor with pressure reservoir supplies the suspension with air and because the air supply is controlled individually for each wheel, it is even possible to compensate for an unevenly distributed load. (press.bmwgroup.com)
At the heart of this system is a hydraulic multi-plate clutch that works faster than ever thanks to a new pressure reservoir. (topspeed.com)
Stability Enhancement Coverage includes hydraulic unit for ABS and 4 - ETS systems, charging pump, pressure reservoir, control module, and vehicle speed sensors. (orlandpark.mercedesdealer.com)