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Sequential m gearbox with drivelogic, Sequential m gearbox with, Drivelogic – BMW M3 Coupe 2004 User Manual

Page 67

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67

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

70

> Upshift display and shift lights, refer

to page

71

> 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.

Overview

Controls

Maintenance

Repairs

Data

Index

Online Edition for Part-No. 01 41 0 157 628 - © 09/03 BMW AG