BMW 2004 M3, Owner'S Manual

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66
Sequential M gearbox with Drivelogic*
The concept
The sequential M gearbox with
Drivelogic is an automated manual
gearbox with which clutching and shift-
ing is assumed by an electro-hydraulic
system.
The SMG Drivelogic is operated via two
shift paddles on the steering wheel and
the selector lever in the center console.
It offers the following functions:
>
Sequential and automated shifting
mode
>
Ability to choose between different
driving programs – Drivelogic
>
Gradient assistance, refer to page 69
>
Upshift display and shift lights, refer
to page
70
>
RPM matching on downshifts
>
Driving dependent functions:
The respective driving situation, e.g.
cornering, mountain driving or brak-
ing, is detected by sensors and taken
into account for shifting, e.g. to
achieve optimum gear selection dur-
ing deceleration and subsequent
acceleration
>
Slip recognition at the rear axle for
increasing driving stability, e.g. dur-
ing downshifting on slippery road
surfaces
>
Operating safety through protection
against misshifting.
Under normal operating conditions, fuel
consumption is lowest when driving in
the first driving program of the auto-
mated shifting mode.
Selector lever positions
R: Reverse position
N: Neutral position
Forward position with one-touch mode:
>
S: sequential mode
>
D: automated mode
>
+: upshifting in sequential mode
>
–: downshifting in sequential mode.
The SMG Drivelogic is ready for opera-
tion from ignition key position two or
higher.
For your safety, it is only possible to
engage a driving position with the vehi-
cle stopped approx. two seconds after
engaging position 0 with the footbrake
depressed – shift-lock function.
Online Edition for Part-No. 01 41 0 158 512 - © 09/04 BMW AG