· 44 ·· 45 ·
Under oil pressure, clutch 1
closes and forms a frictional
connection with input shaf t 1.
The torque is now transmit ted
through the first half gearbox
– and then the dif ferential – to
the rear axle. At this stage,
PDK has already preselected
the next gear in the second
half gearbox. Engine torque
is already acting on the other
outer disc carrier and, in
response to a gear change
signal, the overlap shift is initi -
ated, i.e. as clutch 1 opens,
clutch 2 closes. The non-positive
connection with input shaft 2
is
established, and power is
trans
mit ted to the wheels.
The gear which is engaged is
displayed on the instrument
cluster.
Depending on the gearshift
programme, the gear change
is optimised for comfort or for
sport y handling and takes place
in a mat ter of milliseconds.
The advantage over a fully manual
transmission is the considerably
faster rate of acceleration for the
same rate of fuel consumption.
Boxster | Drive
The advantage over a fully auto -
matic transmission
is the per -
ceptible increase in driving
dynamics – with a similar level of
comfort, and a distinct reduction
in fuel consumption.
The com -
pact dimensions of the gearbox
reduce rotational
masses which
means a more direct engine
response, and the system is
more lightweight.
PDK function diagram
This, along with the long-ratio
7th gear, helps to achieve
reduced fuel consumption and
emission figures comparable with
those of a manual gearbox.
With the optional Sport Chrono
Package, PDK is enhanced by
the
‘Launch Control’ and ‘motor-
sport- derived gearshif t strategy’
functions (p. 57). In essence, PDK combines sport
i
-
ness with efficiency and comfort.
What does all this mean for you?
Uninterrupted driving pleasure.
Multi-plate clutch 1
Multi-plate clutch 2
Semi -gearbox 2
(2nd, 4th, 6th gear)
Rear semi-gearbox 1
(1st, 3rd, 5th, 7th, R gear)
Differential
Motor
Rear wheel
Rear wheel
Boxster
· 128 ·· 129 ·
Te r m Pa g e
A
Active safet y 60
Adaptive sports seats 74
Airbags 66, 67
Anti-theft protection 78
Audio interface, universal 86
Audio system CDR-30 82
B
Bi-Xenon headlights 65
BOSE
® Surround
Sound System 88
Boxer engine 26
Braking system 61
C
CD or CD/ DVD autochanger 87
Chassis 48
Child seats 67
Climate control 76
Colours 100
Comfort seats 74
Cruise control 76
Cylinder-specific
knock control 35
D
Direct fuel injection (DFI) 28
Dry-sump lubrication,
integrated 32
Dynamic cornering lights 65
E
Electronic logbook 85
Engine cooling 33
Engine management system
with electronic throt tle 35
Environment 90
Exclusive, Porsche 119
Exhaust emission control 93
Exhaust system 38
F
Factory collection 120
Fuel 94
H
H a rd t o p 81
Headlight cleaning system 65Heated seats
75
Heated steering wheel 73
Hill -start assist 47
HomeLink
®
Garage door opener 77
Hood 80
I
Ignition system 37
Individual equipment 98
Instruments 72
L
LED day time running lights 65
Lighting concept 64
Lightweight construction 32
Luggage compartment 79
M
Maintenance 95
Manual gearbox 47
Materials 75
N
Navigation module 84
Noise 95
O
Oil supply 32
On-board computer,
integrated 72
P
Pa rk A ssist 78
Passive safet y 66
Porsche Active Suspension
Management (PASM) 54
Porsche Ceramic Composite
Brake (PCCB) 61, 62
Porsche Communication
Management (PCM) 83
Porsche Doppelkupplung
(PDK) 42
Porsche Exclusive 119
Porsche Side Impact
Protection (POSIP) 67
Porsche Stabilit y
Management (PSM) 63, 64
R
Rear differential,
mechanically locking 54
Recycling 93
Resonance intake manifold 35
Roll-over protection 67
S
Seat ventilation 75
Service 95, 122
Servicing 39
Side windows, water- repellent 78
Six-cylinder Boxer engine 26
Sound Package Plus 87
Sport Chrono Package 56
Sport Chrono Package Plus 57
SportDesign Package 106
Sports bucket seats 75
Sports exhaust system 38
Sports seats 74
Standard seats 74
S te e r i n g 51
Steering wheels 46, 73
Storage compartments 76
T
Technical data 126
Telephone module 85
Telephone preparation 86
T V tuner 85
Tyre Pressure Monitoring
( TPM) 52
V
VarioCam Plus 36
Vehicle tracking system 79
Voice control system 85
W
‘Welcome Home’ lighting 77
W heels 52
Wind deflector 81
Wiper system 77
Index
