BMW 1999-2005 M3 Service Manual page 742

Body - General
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adjustable front seats, and electrically
adjustable and heated rear-view
mirrors. Inside the car there are reading
lights at four seating positions.
The seats have a passive internal
ventilation system: Cylindrical cavities
within the cushions and backrests
generate a pumping effect as the car's
ride motions cause occupant motion.
This helps remove moisture and feeds
fresh air into the seats.
Other features of the seating system:
The seat bases have steel springs
for added support and strength.
The seat control switches are
along the outside edge of the
seat.
Heated seats are an option in all
models.
In cars equipped with seat position
memory, three different seat
configurations can be memorized
by the seat control module(s).
Seat memory coordinates with
outside mirror memory.
In Convertible models: When a
rear passenger presses the seat
back switch forward, the comfort
entry aid system moves the seat
forward and lowers the headrest
to prevent it from contacting the
sun visor. The seat and headrest
are then returned to memorized
positions. These functions are
controlled by the seat memory
module(s).
2/25/2009 10:39 PM