Gear shift PORSCHE 911 CARRERA 2003 4.G User Guide

ShiftingGear
Gearshifting128
TiptronicS129-134
ShiftingGear
127

Gearshifting
Thepositionsofthegearsareshownonthe
gearshiftlever.
/!\.Warning!
Riskofanaccident.
I>Alwayscheckthemovementoftheclutch
pedalbeforedrivingandmakesurethatitis
notobstructedbyafloormatoranyother
object.
I>Securethefloormattopreventitfromsliding
intopositionsthatcouldinterferewiththe
safeoperationofyourvehicle.
YourPorschedealercanofferyoufloormats
ofthecorrectsizeincludingasecuringpossi-
bility.
Toavoiddamagetotheclutchandtrans-
mission:
I>Alwaysdepresstheclutchpedalfullywhen
changinggears.
Makesurethatthegearshiftleveriscom-
pletelyengaged.
I>Onlyshiftintoreversewhenthecarhascome
toacompletestop.
128ShiftingGear
Reverse
I>Depresstheclutchpedalforseveralseconds
beforeshiftingintoreverse.
Onlythenmovethegearshiftlevertotheleft,
overcomingthespringtension,andthento
thefront.
Bothback-uplightscomeonwhenthetrans-
missionisputintoreverse(withignitionon).

Permittedenginespeed

~
I>Changeintoahighergearbeforetheneedle
reachestheredmarkonthetachometer,or
easeofftheaccelerator.
Iftheredzoneisreachedduringacceleration,
fuelfeedisinterrupted.
/!\.Caution!
Toavoidsevereenginedamage.
I>Alwaysobservetheenginerpmbeforedown-
shiftingtoalowergear,soyoudonotex-
ceedthemaximumenginerpm.

Tiptronic
S
ThePorscheTiptronicisafive-speedtrans-
missionwithan"Automatic"and"Manual"selec-
tionmode.
Inautomaticselectionmode(selectorlever
positionD),gear-changingisautomatic.
Youcanchangetemporarilyfromautomaticto
manualmodeusingthetoggleswitchesonthe
steeringwheel.
Inmanualselectionmode(selectorlever
positionM),youchangegearusingthetoggle
switchesonthesteeringwheel.
Youcanchangebetweenselectorleverposition
DandMasyouwishwhiledriving.
Note
Takecarenottooperatethetoggleswitcheson
thesteeringwheelinadvertentlyineitherauto-
maticormanualmode,therebytriggeringun-
desiredgearchanges.

Lockingbutton

Topreventunintendedgearshifts,thelocking
buttonintheselectorlever(arrow)mustbe
pressedtochangetoposition
RorP.
Keylockposition

Thispositionallowstheignitionkeytobe
removedonlyafterthegearshiftselectorlever
buttonisdepressedandmovedtoposition"P".
Thisensuresthatthedriverengagestheparking
lockbeforeleavingthevehicleandturnsthe
ignitionkeytoposition"0",thentheignitionkey
canberemovedfromtheignitionswitch.

Shiftlock(selectorleverlock)
The
shiftlocksystemisanotherfeaturetopre-
ventinadvertentmovementofthevehicle.

Ignitionswitchposition0
The
selectorlever(lockingbutton)islocked.

Ignitionswitchposition1

Withthevehiclestationary,theselectorlever
cannotbemovedfrom
thePorN
positions,
unlessthebrakepedalisdepressed.

Startingtheengine

Theenginecanbestartedonlyinselectorlever
position
PorN.
Drivingoff
I>
Selectthedesireddriveposition(D,MorR)
fordrivingoffonlywhentheengineisidling
andwhiledepressingthebrakepedal.

I>
Sincethecarcreepswheningear,donot
releasethebrakeuntilyouwanttodrive
off.
I>After
selectingagear,donotaccelerateuntil
youcanfeelthatthegearhasbeenselected.
ShiftingGear
129

Indicator
forselectorleverpositionand
engagedgear

Whentheengineisrunning,theselectorlever
positionandengagedgearareindicated.
130ShiftingGear

Iftheselectorleverisbetweentwo
positions:

-Theselectorleverpositionintheinstrument
clusterflashes,and
-thewarning"selectorlevernotengaged"
appearsonthedisplayoftheon-boardcom-
puter.
I>Engagetheselectorlevercorrectly.

Ifthereisafaultinthetransmission:
-4thgear
flashesonthedisplay.
-Thewarning"Tiptronicemergencyrun"
appearsintheon-boardcomputer.
Alsoreferto"Emergencyprogram".
I>Toremedythefault,pleaseconsultanauth-
orizedPorschedealerimmediately.

SelectorLeverPositions
P-Parking
lock
InselectorleverpositionP,thedrivenwheels
aremechanicallylocked.
[>
Selectonlywhencarhasbeenstopped.
[>Engageparkinglockafterapplyingthehand-
brakeandreleaseitbeforereleasingthe
handbrake.
Theignitionkeycanbewithdrawnonlyin
selectorleverposition
P.
R-Reverse

[>Selectonlywhencarhasbeenstoppedand
thebrakeisapplied.

N-Neutral

SelectorleverpositionNmustbeselectedfor
towingorincarwashes,forexample.
[>
Selectthedesiredpositionformovingoff(D,
MorR)onlywhentheengineisidlingand
whiledepressingthebrakepedal.
[>SelectpositionNwhiledrivingonlyifthecar
isthreateningtoskidinslipperyconditions.
OtherwiseNshouldnotbeselectedwhiledriv-
ing.
D-
Automaticselection
mode
[>
SelectpositionDfor"normal"driving.The
gearsareshiftedautomaticallyaccordingto
theacceleratorpositionandspeed.
Dependingonthewaythevehicleisdrivenand
ontheresistance(e.g.uphill),thegear-changing
pointsareshiftedtowardshigherorloweren-
gine-speedranges.
Theacceleratorposition,drivingspeed,engine
speed,longitudinalandlateralaccelerationand
theroadprofileallhaveaninfluenceonthe
gear-changingcharacteristic.
Unwantedupwardshifts,e.g.beforebends,are
preventedbyswiftlyreleasingtheaccelerator
pedal.
Dependingonlateralacceleration,upwardshifts
onbendsarenotmadeuntiltheengine-speed
limitisreached.
Underbraking,anddependingontheamountof
deceleration,theTiptronicshiftsdownearlier.
Forsubsequentcornering,therightgearisen-
gagedwhenpressureisappliedtothebrakes
beforethebend.
Thebendistakenintherightgear,andwhen
youaccelerateoutofthebendyoudonothave
toshiftdown.
Drivingoff
In2ndgear,thevehicledrivesoffwiththe
throttleonlyslightlyopen.
Driveoffin1stgearwiththethrottleopen
widerorwhentheengineiscold.
[>[>[>
ShiftingGear
131

Shiftinggearonthesteeringwheel

Withthetoggleswitchesonthesteeringwheel,
youcanchangetemporarilyfromautomatic
selectionmodeDtomanualmodeM.
Advantages:
-Shiftingdownbeforebendsandonentering
built-upareas.
-Shiftingdownondownwardslopes(engine
braking)
-Shiftingdownforbriefspurtsofacceleration
-Selecting1stgearformovingoff
Themanualselectionmoderemainsengaged:
-forcornering(dependingonthelateral
acceleration)andoverrunning,
-whenthevehicleisstationary
(e.g.atajunction).
Thesystemleavesmanualselectionmode:
-automaticallyafterapprox.8seconds
(unlesscorneringoroverrunning),
-ifyoudepresstheacceleratortokickdown,
-aftermovingoff.
132ShiftingGear

Temporarychange-down

Conditions:
Speedishigherthanapprox.33mph(54kmjh).
I>Depressacceleratorquickly.
TheTiptronicchangestemporarilytothespor-
tiestgear-changingmap,i.e.tothehighest
possiblegear-changingpoints.Correspond-
ingly,thetransmissionshiftsdownimmedi-
atelybyoneortwogears.
Endingthefunction:
I>Releasetheacceleratormarkedly(byapprox.
25%).

Kickdown
The
kickdownfunctionisactiveinselectorlever
positionD,evenifyoutemporarilychangeto
manualmodeMusingthetoggleswitcheson
thesteeringwheel.
I>Foroptimumacceleration,e.g.whenovertak-
ing,depresstheacceleratorpedalbeyondthe
full-throttlepoint(kickdown).
Thetransmissionshiftsdowndependingonthe
speedoftravelandenginespeed.
Upwardshiftsoccuratthehighestpossible
enginespeeds.
Thesegear-changingspeedsremainactiveuntil
theacceleratorisreleasedtoapprox.80%of
thewideopenthrottleposition.

M-ManualSelectionMode

Thecurrentlyselectedgearisretainedifyou
changefromDtoM.
IfyoushiftfromMtoD,thegear-changingmap
suitableforyourcurrentdrivingstyleisselected
andtheappropriategearisselected.

/?\.Warning!
Thekickdownfunctionisnotactivein
manualselectionmode"M",
t>
Thereforeshiftdownmanuallywhenaccelera-
ting(e.g.toovertake).
Twotoggleswitchesintheuppersteering-wheel
spokesletyoucomfortablyandreliablyselect
thefiveforwardgears.

Shiftingup
t>
Pressupperpart(+)ofatoggleswitch.

Shiftingdown
t>
Presslowerpart(-)ofatoggleswitch.
Dependingondrivingspeedandenginespeed,
youcanshiftupordownatanytime.
Gearchangeswhichwouldexceedtheupperor
lowerengine-speedlimitarenotexecutedbythe
controller.
Youcanshiftdowntwogearsatoncebyquickly
pressingthetoggleswitchestwice.
Iftheengine-speedlimitisreached,anauto-
maticupwardshiftisperformedor,justbefore
idlingspeedisreached,adownwardshiftisper-
formed.

t>
Selectanappropriatelylowgearonupward
anddownwardslopes.
Thiswillensureoptimumuseofenginepower
andenginebraking.
Ifmanualmodefails,thecontrolelectronics
switchtoautomaticmode.Inthisevent,the
instrumentclusterwilldisplayselectorleverposi-
tionD.
t>Toremedythefault,pleaseconsultanauth-
orizedPorschedealer.

t>t>t>

ShiftingGear
133

Slipmonitoring

Whenthespeedsofrotationofthefrontand
rearaxlesdifferbymorethanthemaximumper-
missiblevalue,integratedslipmonitoringshifts
uptothenextgear.
Thisincreasesdrivingstabilityonaslipperysur-
face.
Note
Slipmonitoringisalsodeactivatedwhen
PorscheStabilityManagement(PSM)isswitched
off.

Stopping

[>
Forabriefstop,e.g.atatrafficlight,leave
theselectorleverindrivepositionandhold
thevehiclewiththebrakepedal.
[>Foralongerstopwiththeenginerunning,
selectpositionN(neutral).
[>
Donotholdthecaronaslopeusingthe
accelerator.Usethebrakepedalorthehand-
brakeinstead.
[>Beforeleavingthevehicle,alwaysapplythe
handbrakeandmovetheselectorleverto
positionP.
134ShiftingGear

Parking

[>
Goeasyontheaccelerator.
[>
Whenparkingormanoeuveringinasmall
space,controlthespeedbycarefuluseof
thefootbrake.

Drivinginwinter

Inwinteryroadconditionsitisadvisabletotake
steepinclinesinmanualmode.Thispreventsthe
occurrenceofgearchangesthatcouldcause
wheelspin.

Tow-starting,towing

Refertothechapter"Towing".

Emergencyprogram

Atransmissionfaultisindicatedbythefollowing
symptoms:
-4th
gear
flashesonthedisplayoftheinstru-
mentcluster.
-Thewarning"Tiptronicemergencyrun"
appearsintheon-boardcomputer.
-Thetransmissionnolongershifts.
A.Warning!
Reverse
gear
lockmonitoringisdisabledin
theemergencyrunningprogram.
Damagetothevehiclemayresultaswell
aslossofcontrol,ifthevehicleismoving
forwardfastenoughtocauserearwheel
lockup.
[>
DonotshiftintoRwhilethevehicleismoving
forward.
Proceedasfollowsintheeventofatrans-
missionfault:
1.Stopinasafeplace.
2.MoveselectorlevertopositionP,switchthe
ignitionoffandwaitfor10seconds.
3.Starttheengine.
2ndgearinselectorpositionDandreverse
gearRarenowavailableandwillallowyouto
reachthenearestauthorizedPorschedealer.
4.Toremedythefault,pleaseconsultanauth-
orizedPorschedealerimmediately.

FuelEconomy
Fueleconomywillvarydependingon
where,whenandhowyoudrive,optional
equipmentinstalled,andthegeneralcondi-
tionofyourcar.
Acartunedtospecificationsandcorrectly
maintained,willhelpyoutoachieveoptimal
fueleconomy.
I>Haveyourvehicletunedtospecifications.
Aircleanershouldbedirtfreetoallowproper
engine"breathing".
Batteryshouldbefullycharged.
Wheelsshouldbeproperlyaligned.
Tiresshouldbeinflatedatcorrectpressure.
I>Alwaysmonitoryourfuelconsumption.
I>Drivesmoothly,avoidabruptchangesin
speedasmuchaspossible.
I>Avoidjackrabbitstartsandsuddenstops.
I>Donotdrivelongerthannecessaryinthe
lowergears.Shiftingintoahighergearearly
withoutluggingtheenginewillhelpsavefuel.
I>Prolonged"warmup"idlingwastesgas.Start
thevehiclejustbeforeyouarereadytodrive.
Accelerateslowlyandsmoothly.
I>Switchofftheengineifstationaryforlonger
periods.
I>Anyadditionalweightcarriedinthevehiclere-
ducesfueleconomy.Alwayskeepcargotoa
minimumandremoveallunnecessaryitems.
I>Organizeyourtripstotakeinseveralerrands
inonetrip.
I>Allelectricalaccessoriescontributetoin-
creasedfuelconsumption.
I>Onlyswitchontheairconditioningwhen
necessary.
I>DonotdrivewiththeRoofTransportSystem
mountedunlessyouneedit.
TheEPAestimatedm.p.g.istobeusedfor
comparisonpurposes,actualmileagemay
bedifferentfromtheestimatedm.p.g.,de-
pendingonyourdrivingspeed,weather
conditionsandtriplength.Youractual
highwaymileagewillprobablybelessthan
theestimatedm.p.g.
I>Pleaseobservealllocalandnationalspeed
limits.
OperatingYourPorscheinother
Countries
GovernmentregulationsintheUnitedStatesand
Canadarequirethatautomobilesmeetspecific
emissionregulationsandsafetystandards.
Therefore,carsbuiltfortheU.S.andCanada
differfromvehiclessoldinothercountries.
IfyouplantotakeyourPorscheoutsidethecon-
tinentallimitsoftheUnitedStatesorCanada,
thereisthepossibilitythat
-unleadedfuelmaynotbeavailable;
-unleadedfuelmayhaveaconsiderablylower
octanerating.Excessiveengineknockand
seriousdamagetobothengineandcatalytic
converterscouldresult;
-servicemaybeinadequateduetolackof
properservicefacilities,toolsordiagnostic
equipment;
-replacementpartsmaynotbeavailableor
verydifficulttoget.
Porsche
cannot
beresponsibleforthe
mechanicaldamagethatcouldresultbe-
causeofinadequatefuel,serviceorparts
availability.
IfyoupurchasedyourPorscheabroadandwant
tobringitbackhome,besuretofindoutabout
shippingandforwardingrequirements,aswell
ascurrentimportandcustomsregulations.
Maintenance,CarCare
175

Connectjumpercablesinthefollowingse-
quence:
1.Checkelectrolytelevelofeach
cell.If
necessary,fillwithdistilledwatertojust
aboveplates.
2.Onavehiclewithadischargedbattery:turn
offallconsumersandaccessories,movethe
gearshiftleverintotheneutralpositionand
settheparkingbrake.
3.Openthecapofthepositiveterminalfor
jumpstarting
(+).
+=
Positiveterminalforjumpstarting

-=
Groundingpointforjumpstarting
4.Attach
thepositivecable
firsttothepositive
terminalforjumpstarting(+).
thentothepositiveterminalofthebooster
battery.
5.Connect
thenegativecable
firsttothene-
gativeterminaloftheboosterbattery,
thentothegroundingpointforjumpstarting
H.
6.Runtheengineoftheboostercaratahigher
speed.
7.Starttheengine.
Anattemptedstartusingjumpercables
shouldnotlastmorethan
15
seconds.Then
allowawaitingperiodofatleastoneminute.
8.Withtheenginerunning,disconnectbothjum-
percablesinreverseorder.
Closethelidofthejumpstartbox.
PracticalTips,EmergencyService
221