Z Series E85 Z4 3.0i (M54) ROADST
adapted to the driving situation. [System overview ...]
The SMG GS6S37BZ (H-SMG) is based on the 6-speed manual transmission GS6-37BZ (H-transmission).
The principal benefits of the SMG compared to a conventional manual transmission:
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No clutch pedal as clutch actions run automatically
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Selection of 3 operating modes:
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Sequential, manual gearshift via gear lever or gearshift paddles
•
Dynamic Driving Control FDC via SPORT button: a more sporty driving style through intervention in the
steering, engine and transmission control systems (in manual mode and in drive mode)
•
Drive mode = Automatic mode
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Short and precise gearshifts, no incorrect gearshifts possible
(gear change in approx. 0.15 seconds)
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Safety and comfort: because the gearshift paddles are on the steering wheel, you can keep your hands on the
steering wheel when you change gear.
Launch schedule:
The SMG will be offered as special equipment (option 206).
Model
Engine
Planned launch schedule
E85
M54B25
M54B30
04/03 all countries
Brief description of components
The SMG system comprises the following components:
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Gear lever with mounting block and gear lever trim
The gear lever allow gears to be changed sequentially by brief pressing.
The gear lever has 6 positions: 3 spring-loaded detent positions for reverse gear "R", neutral "N" and
manual mode (symbol "-" between neutral and drive mode) plus 3 non-detent positions that are only briefly
engaged when pressed ("+", "-", "D" (drive mode = automatic mode)). 7 Hall sensors are installed in the
mounting block to recognise the position of the gear lever. The gear lever lock (shift-lock) is also installed in the
mounting block.
The illuminated gear lever position indicator is located in the gear lever trim. [more ...]
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Steering wheel with gearshift paddles
The steering wheel with gearshift paddles allows manual gear changes without the driver having to take his
hands from the steering wheel. When one or both of the gearshift paddles is pulled, the transmission will shift
up, when one (or both) is pressed, the transmission will shift down. [more ...]
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SPORT button for Dynamic Driving Control FDC
Dynamic Driving Control FDC is activated with the SPORT button: Gearshift times are shortened and the shift
characteristics are made more sporty. The engine is more responsive to movements of the accelerator pedal.
Steering and holding forces on the steering wheel are given more sporty settings.
Dynamic Driving Control is always deactivated when the engine is started. [more ...]
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SMG hydraulic unit with sensors
Clutch actions and gear changes are automatically executed with the support of the SMG hydraulic unit and the
sensors. [more ...]
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Gearshift/selector angle actuator
The gearshift/selector angle actuator shifts the selector shaft along its axis and turns the selector shaft
when changing gate. [more ...]
SBT Sequential manual transmission SMG, based on GS6-37BZ E85
BMW AG - TIS
16.02.2013 13:47
Issue status (12/2007) Valid only until next DVD is issued
Copyright
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