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210n
BMW active seat* Safety belt tensioner
BMW seats are configured for your
orthopedic well-being. The active seat
is an engineering enhancement of
BMW's seats, designed to ensure less
fatigue during extended trips while
sitting with little movement. The seat is
no longer a passive element between
the road, the running gear and the pas-
senger. Instead, it creates minor and
imperceptible shifts in your weight by
an active change in the contour of the
seat surface. The basic seat position is
not changed as this occurs.
Fluid cushions are located below the
surface of the seat in the seat's
upholstery on the left and right.
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The fluid is circulated slowly back and
forth between the two cushions by
means of a pump. This causes a move-
ment of the spinal column which is
nearly unnoticeable, resulting in an im-
proved flow of blood to the vertebral
discs and the muscles in the area of the
spinal column. Vehicle occupants can
experience less muscle cramping, back
pain in the spine's lumbar region and
fatigue. The active seat thus provides a
significant contribution to your driving
comfort and safety.
The safety belt tensioner responds to
severe frontal collisions by tightening
the belts to ensure that occupants
remain firmly positioned in their seats.
A gas-pressure system retracts the
buckle assembly to tension the shoul-
der and lap belts within fractions of a
second. This reduces the tendency to
slide under the lap belt.
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Online Edition for Part No. 01 41 0 155 420 - © 01/01 BMW Group
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