Page 17 of 308
Controls, Instruments
17
1 Inner door handle
2 Power windows
3 Door mirror control
4 Light switch
5 Ignition/starter switch with steering lock
6 Turn signal/headlight dimmer,
flasher lever
7 Operating lever for on-board computer
8Horn
9 Emergency flasher switch,
central locking switch
10 Switches for rear spoiler,
Porsche Active Suspension Management
(PASM), Sport mode,
Porsche Stability Management (PSM)
11 Cupholder
12 Switch for seat memory
13 Diagnostic socket (OBD)
14 Lid release
15 Seat height adjustment
16 Steering-wheel adjustment
17 Backrest angle adjustment
18 Seat fore and aft adjustment
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34
Controls, Instruments
Seat Adjustment
Warning!
The seat may move unexpectedly if you
attempt to adjust while driving. This could
cause sudden loss of control or personal in-
jury.
fDo not adjust seats while the vehicle is in mo-
tion.
The backrest locks must be engaged at all
times while the vehicle is in motion.
Safety belts only offer protection when the
backrest is upright and the belts are properly
positioned on the body.
Improperly positioned safety belts or safety
belts worn by passengers in an excessively
reclined position can cause serious personal
injury in an accident.
fDo not operate the car with the driver or
passenger backrests excessively reclined
(see “Seat position”).
In the cabriolet, the windstop may be
damaged during seat adjustment and when
folding back the front-seat backrest.
fAdjust seat so that the seat backrest does not touch the windstop.
Seat position An ergonomically correct sitting position is
important for safe and fatigue-free driving.
We recommend the following procedure for adjust-
ing the driver’s seat to suit individual
requirements:
1. Vehicles with manual transmission:
Adjust the seat until, with the clutch pedal fully
depressed, your leg remains at a slight angle.
Vehicles with Tiptronic S:
Adjust the seat until, with your left foot on the
footrest, your left leg remains at a slight angle.2. Rest your outstretched arm on the steering
wheel.
Set the backrest angle and the steering-wheel
position so that your wrist rests on the outer
rim of the steering wheel. At the same time,
the shoulders must still be in noticeable
contact with the backrest.
3. Adjust the seat height to give yourself enough
headroom and a good overview of the vehicle.
4. Electrically adjustable seat:
Adjust the seat angle until your thighs rest
lightly on the seat cushion.
Manually adjustable
comfort seat/sports seatA Seat height
fUse lever A in a pumping movement:
Upwards – seat moves upwards
Downwards – seat moves downwards
B Fore and aft
fRaise locking lever B.
Move seat to desired position and release
lever.
Ensure that the seat engages correctly.
CBackrest angle
fOperate switch C until the desired backrest
angle is reached.
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Controls, Instruments
35
Electrically adjustable
comfort seat/sports seatfPress the switch in the direction indicated by
the arrow until the desired setting is reached.
A Seat height adjustment
B Fore-and-aft position adjustment
C Seat angle adjustment
D Backrest angle adjustmentE Lumbar support
(pelvis and spinal column support)
To permit a relaxed sitting posture, the backrest
curvature is continuously adjustable in vertical and
horizontal directions for individual pelvis and
spinal column support.
fPress the switch in the direction indicated by
the arrow until the desired backrest curvature
is reached.
F Adjusting the backrest side bolsters
(electrically adjustable sports seat only)
fPush forward or pull backward switch F until
the side bolsters are adjusted to the shape of
the body.
G Adjusting the seat cushion side bolsters
(electrically adjustable sports seat only)
fPush forward or pull backward switch G until
the side bolsters are adjusted to the shape of
the body.
Seat backrestFolding forward
fPull up lever H in the side part of the backrest
and fold the backrest forward.
Folding back
fTilt back and engage the backrest so that it
cannot tip forward when the car is braked.
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Controls, Instruments
39
Rear Seat BackrestsExtra storage space is gained by folding the rear
seat backrests forward.
Folding forward
fPull lever forward and fold the backrest
forward.
Folding back
fTilt the backrest back until you feel it click into
place. When doing so, make sure that the seat
belt is properly routed (see figure).Cabriolet
fDo not fold up the rear seat backrests with the
windstop installed.
Steering Wheel Adjustment
Warning!
Risk of accident.
The steering wheel may move further than
desired if you attempt to adjust it when
driving.
You can lose control of the vehicle.
fDo not adjust the steering wheel when driving.
Adjusting steering wheel height and
longitudinal direction1. Push the locking lever downwards.
2. Adjust steering wheel to fit the chosen
backrest angle and your seat position by
moving the steering wheel up or down and
longitudinally.
3. Swivel locking lever back until you feel it en-
gage.
If necessary, move steering wheel slightly lon-
gitudinally.
Page 44 of 308
44
Controls, Instruments
Safety belt height adjustment(Coupé only)
The height of the belt deflectors for the driver’s
seat and passenger’s seat can be adjusted.
Adjust the height of the safety belt so that it runs
across the middle of the shoulder, not against the
neck.
Adjusting belt height
fUpward – push belt deflector up.
fDownward – press button (arrow) and move
belt deflector.
Cleaning the safety beltsfPlease observe the chapter “SAFETY BELTS”
on Page 226.
Page 221 of 308

Maintenance, Car Care
221
Automatic car washes
Optional add-on parts or parts which project
beyond the contours of the vehicle may be
damaged by design features (e.g. brushes) of au-
tomatic car washes.
The following parts are particularly
susceptible to damage:
– Convertible top (hot wax treatment cannot be
used, as the wax attacks the convertible top
material)
– Windshield wipers (always switch them off to
prevent them wiping unintentionally in intermit-
tent or sensor operation)
– External antennas (always unscrew)
– Roof Transport System (always remove com-
pletely)
–Rear spoiler
– Wheels (the wider the rim and the lower the tire
height, the greater the risk of damage)
– High-gloss wheels (to prevent these from get-
ting scratched, do not clean with the wheel-
cleaning brushes of the car wash).
fPlease consult the operator before using auto-
matic car washes.
fWash and dry by hand all points not reached by
a car wash, such as door and lid seams or
door sills. Note
Automatic car washes spray water at odd angles
and high pressures, which are not seen in normal
driving. Therefore, water can sometimes find its
way into the passengers compartment during or
shortly after the car wash.
Door lock fTo prevent the door lock from freezing during
the cold season, the lock cylinder should be
covered during a wash.
fShould the lock freeze, use an ordinary de-icer.
In many cases, a well warmed key can help.
Never use excessive force.
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240
Practical Tips, Emergency Service
Example of InscriptionInscription on radial tireATire size
Example: P 295/30 ZR 19 100 Y
–P - The tire is designed for Passenger vehicle.
This information is not included on all tires.
–295 - Indication of tire width in mm
–30 - Indication of tire height to tire width ratio
in percent–ZR - code letter for radial tires for speeds
above 150 mph / 240 km/h
There are currently no standards concerning
tire strength at speeds above 150 mph
(240 km/h).
–R - Belt type code letter for radial
–19 - Indication of rim diameter in inches
–100 - Load capacity coefficient
–Y - Speed code letter
–XL (Extra Load) - Tire with increased load rat-
ing
B TIN (Tire Identification Number)
Example: DOT xx xx xxxx xxxx
–DOT
The DOT symbol indicates that the tires com-
ply with the requirements of the US Depart-
ment of Transportation and provides informa-
tion about:
– first two-digit code means manufacture’s iden-
tification mark.
– second two-digit code means tire size.
– third four-digit code means tire type code.
– fourth four-digit code means date of manufac-
ture.
If, for example, the last four numbers read
0204, the tire was produced in the 2nd week
of 2004.
C Tire ply composition and material
The number of layers in the tread and sidewalls
and their material composition.
D Maximum permissible inflation pressure
The maximum permissible cold inflation pressure
to which a tire can be inflated.
fDo not exceed the permissible inflation pres-
sure.
Page 298 of 308
298
Technical Data
Dimensions
911 Carrera, 911 Carrera S 911 Carrera 4, 911 Carrera 4S
Length 175.6 in./4461 mm 175.6 in./4461 mm
Width 71.2 in./1808 mm 72.9 in./1852 mm
Height 51.6 in./1310 mm 51.6 in./1310 mm
Wheelbase 92.5 in./2350 mm 92.5 in./2350 mm
Ground clearance
at maximum gross weight911 Carrera: 4.1 in./104 mm 911 Carrera 4: 4.1 in./103 mm
Turning circle 35.8 ft./10.9 m 35.8 ft./10.9 m
Vehicles with PASM
Height 51.2 in./1300 mm 51.2 in./1300 mm
Ground clearance
at maximum gross weight911 Carrera: 3.9 in./99 mm
911 Carrera S: 4.1 in./103 mm911 Carrera 4: 3.7 in./95 mm
911 Carrera 4S: 3.9 in./98 mm