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Home >> BMW >> 2000 >> M5 >> Repair and Diagnosis >> Electrical >> Body Electrical >> Central Body Electronics (ZKE III) - Overview - E38, E39 & E53 >> Central Body Electronics (ZKE III) >> Active Seat (E38 - If Equipped) >> Purpose Of The System

Purpose Of The System

Actively changing the surface of the seat helps to prevent muscle tension and fatigue particularly on long trips or sitting in one position for a long period of time. The seat causes weight transfers which are slight and imperceptible enhancing driving comfort. The basic seating position is not changed by this.

In the seat's upholstery beneath the surface of the seat is a cushion of fluid on the left and right. The fluid is slowly circulated back and forth between the cushions by a pump.

Fig 1: Identifying Active Seat Components
G03398890Courtesy of BMW OF NORTH AMERICA, INC.