2010 PORSCHE 911 GT3 lock

Practical Tips, Emergency Service
197
Wheels with Central LockingWheels with central locking are perfectly normal in
motor sport, but on normal roads they are not
common. Your GT3 is fitted with central locking
wheels as standard.
Instead of the central lock nuts conventionally
used in motor sport, the GT3 wheel has a central
bolt, with which it is fastened to the wheel carrier.
Its anti-rotation device consists of an element
inserted into the wheel hub with spring-mounted
locking bolt.
Central BoltsThe central bolt and the lock are safety-related
components. Therefore, always check them for
signs of damage.
fThe conical surface, trapezoidal thread and
internal toothing of the central bolt must not
exhibit any scratches or cracks.
fReplace damaged central bolts.
Only use the genuine Porsche central bolts
allocated specifically to this vehicle model.
fThe conical surface and trapezoidal thread
on the central bolt must be free of any
contamination.
fThe central bolt must not contain any grease
except on the trapezoidal thread.Tightening torque6. Tightening torque for central bolts: 370 ftlb.
(500 Nm).
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Practical Tips, Emergency Service
199
Caution!
Risk of damage due to scratches.
fBe careful when removing the wheel-hub cap.
4. Carefully lever out the wheel-hub cap using a
small screwdriver.
To do this, insert the screwdriver in groove A.
Apply a piece of adhesive tape to the
screwdriver if necessary to avoid scratching
the surface of the bolt.fThe central bolt must always be opened using
the original tool (stored in the luggage
compartment).
fAlways keep the wrench socket in the luggage
compartment so that it is available in the event
of a breakdown.
5. Insert the socket and fit it as far as it
will go. This pushes back the safety lock
in the central bolt.
Note
The socket locks in this position.A very high torque is required to loosen the
central bolt.
fTurn in the correct direction!
fPrevent the wheel from turning by getting a
second person to brake using the brake pedal.
Warning!
Risk of damage to the safety lock.
fWhen loosening the central bolt, make sure
that the tool remains fully inserted and cannot slide off.
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200
Practical Tips, Emergency Service 6. Unscrew the central bolt and set it down in
such a way that no dirt can enter the cone area
or the trapezoidal thread.
Warning!
Risk of damage to brake discs of the
Porsche Ceramic Composite Brake (PCCB).
fMake sure not to tilt the wheel when removing.
7. Remove the wheel carefully.
Safety notes!
Carry out a visual inspection of all parts before
fitting the wheel.
The central bolt and the lock are safety compon-
ents and must always be checked for damage.
fThere must be no scratches or cracks on
the cone area, trapezoidal thread or inner
teeth of the bolt.
fThe lock must not be removed from the wheel
hub.
fCheck the toothed locking pin for smooth
operation.
When the pin is pressed into its cartridge,
it must return firmly to its original position
without catching.
fThe teeth on the locking pin must not be
damaged.
fThe affected parts must be replaced if they
are damaged or if you suspect that they are
not in perfect working order.
fOnly brake discs that were approved for the
central lock may be fitted.
fThe lock must be in the wheel hub.
fAll contact surfaces on the wheel, wheel hub
and brake disc, and the trapezoidal thread in
the wheel hub must show no signs of wear and
must be free of sand, dust and chips. fApart from the threads on the central bolt and
wheel hub, all parts must be free of grease.
Apply some aluminum paste to the trapezoidal
thread on the wheel hub if necessary. Warning!
Risk of damage to brake discs of the
Porsche Ceramic Composite Brake (PCCB).
fMake sure not to tilt the wheel when fitting.
8. Fit the wheel carefully.
Safety instruction!
The vehicle must not be standing on
the wheel to be secured during fitting.
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Practical Tips, Emergency Service
201
9. Insert the central bolt into the socket (until it
engages), fit the central bolt at right angles to
the wheel hub and screw it on without tilting.
10.Tighten the central bolt once to at least
370 ftlb. (500 Nm) using a suitable torque
wrench and then loosen again slightly (by
approx. 1/4 turn).
11.Tighten the central bolt to 370 ftlb.
(500 Nm).
Prevent the wheel from turning by getting
a second person to press the brake pedal.
If you do not have a suitable torque wrench
in a breakdown situation, the emergency
procedure for securing the central bolt must
be performed.
Please see the chapter “EMERGENCY PROCE-
DURE FOR SECURING CENTRAL BOLT” on
Page 202.12.Remove the socket and check that the locking
pin A has already engaged automatically in the
central bolt. The locking pin is then flush with
the inner teeth of the central bolt.
If the locking pin is still in the rear position, the
pin must be turned to the left and right using
a square bar from the tool kit, for example,
until it engages in the central bolt.
Warning!
Risk of damage and accident, resulting in
serious personal injury or death.
The central bolt can loosen and the wheel
can fall off.
fNever drive without the locking pin being engaged. 13.Fit the wheel-hub cap in the central bolt so that
the position finger is in the groove. Then
press the cap into position.
Apply a small amount of grease on the rubber
ring of the cap beforehand if necessary.
14.Now lower the vehicle.
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208
Practical Tips, Emergency Service
Alarm system, central lockingThe status of the central locking and alarm system
is not changed by disconnecting the battery.
When the battery is disconnected, the alarm
system ceases to function.Central locking overload protectionIf the central locking system is operated more
than ten times within a minute, further operation is
blocked for 30 seconds.
Load switch-off after 2 hours or 7 daysIf the ignition key is removed, loads which are
switched on or are in standby mode (such as the
luggage compartment light, interior light and
radio) are automatically switched off after approx.
2hours.
If the vehicle is not started or unlocked with the
remote control within 7days, the remote control
standby function is switched off (to save the
vehicle battery).
1. In this case, unlock the driver’s door with the
key at the door lock.
Leave the door closed in order to prevent the
alarm system from being triggered.
2. Press button 1 on the remote control.
The remote control is now activated again.
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Practical Tips, Emergency Service
209
Replacing fuses In order to prevent damage to the electrical
system due to short circuits and overloads, the
individual circuits are protected by fuses.
The fuse box is located in the driver’s footwell.
A - Plastic gripper
B - Spare fuses 1. Switch off the load with the defective fuse.
2. Pull off plastic cover at the finger hole (arrow).
The fuse plan and instructions for
emergency unlocking of the luggage
compartment lid can be found on the inner
side of the cover.
3. Remove the corresponding fuse from its slot
using the plastic gripper A in order to check it.
A blown fuse can be identified by the melted
metal strip.4. Replace only with fuses of the same rating.
We recommend using genuine Porsche fuses
for replacement.
Note
fIf a fuse blows repeatedly consult an autho-
rized Porsche dealer.
fNever try to “repair” fuses: you may cause
serious damage to other parts of the electrical
system.
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210
Practical Tips, Emergency Service
Emergency unlocking of the luggage
compartment lidIf the battery is discharged, the luggage compart-
ment lid can be opened only with the aid of a donor
battery.
Note
The engine cannot be started with this method.
fPlease see the chapter “EMERGENCY
STARTING WITH JUMPER CABLES” on
Page 217.
Unlocking lid
1. Use the key to unlock the vehicle at the door
lock.
2. Remove the plastic cover from the fuse box.
3. Pull out positive terminal C (red) in the fuse box
using the plastic gripper A (yellow).
A - Plastic gripper (yellow)
C - Positive terminal (red)4. Use a jumper cable to connect the positive
terminal of the donor battery to the positive
terminal C in the fuse box.
Note
If the vehicle was locked, the alarm horn will sound
when the negative cable is connected.5. Use the black jumper cable to connect the
negative terminal of the donor battery to the
door arrester D.
6. Press button 2 on the remote control for
approx. 2 seconds to unlock the luggage
compartment lid.
The alarm system is switched off.
7. Disconnect the negative cable first, then the
positive cable.
8. Push positive terminal C into the fuse box and
push on the plastic fuse box cover.
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Practical Tips, Emergency Service
211
Battery fPlease see the chapter “EMERGENCY OPERA-
TION – PULLING OUT THE IGNITION KEY” on
Page 69.
fPlease see the chapter “EMERGENCY
UNLOCKING OF THE LUGGAGE COMPART-
MENT LID” on Page 210.
Warning!
Risk of short circuit and fire, resulting in
serious personal injury or death.
fObserve all warning notes on the battery.
fDisconnect the negative terminal on the
battery during all work on the electrical
system.
fDo not lay tools or other metal objects on the
battery as they could cause a short circuit
across the battery terminal.
Hydrogen gas generated by the battery
could cause an explosion, resulting in
serious personal injury or death.
fDo not expose the battery to an open flame,
electrical spark or a lit cigarette.
fDo not wipe battery with a dry cloth.
Risk of serious personal injury or death and
damage to the fabric, metal or paint.
fWear eye protection. fDo not allow battery acid to come in contact
with your skin, eyes, fabric or painted
surfaces.
fIf you get electrolyte, which is an acid, in your
eyes or on your skin, immediately rinse with
cold water for several minutes and call a
doctor.
fSpilled electrolyte must be rinsed off at once
with a solution of baking soda and water to
neutralize the acid.
Battery posts, terminals and related acces-
sories contain lead and lead compounds,
chemicals known to the State of California to
cause cancer and reproductive harm.
fAlways protect your skin by washing
thoroughly with soap and water.
Risk of explosion as a result of static charge,
resulting in serious personal injury or death.
fDo not wipe the battery with a dry cloth.
fEliminate potential electrostatic charge by
touching the vehicle before touching the
battery.
Charge state A well charged battery will not only prevent
starting problems but will also last longer.
In order to avoid discharging the battery
unintentionally:
fSwitch off unnecessary electrical loads in city
traffic, on short trips or in a line or traffic.
fAlways remove the ignition key from the
ignition switch when leaving the car.
fAvoid frequent operation of the convertible top
and operation of the Porsche Communication
Management system when the engine is not
running.
In the cold season in particular or if the vehicle is
used primarily for short trips, it may be necessary
to recharge the battery from time to time.
Porsche recommends the use of a charger, partic-
ularly during extended immobilization periods.
Please see your authorized Porsche dealer
for relevant information.
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