2010 PORSCHE PANAMERA ECU

Minor Repairs
293
Wheel Bolts fAlways clean the wheel bolts before fitting.
f Wheel bolts must not be greased.
f Replace damaged wheel bolts.
Only use genuine Porsche wheel bolts
assigned especially to this model or wheel
bolts of similar quality that have been
manufactured according to Porsche
specifications and production requirements.
Tightening torque
Tightening torque for wheel bolts: 160 Nm
(118 ftlb.) .
Security wheel boltsThe adapter (wrench socket) for the security
wheel bolts is stored in the tool tray under the
luggage compartment floor.
fIf the wheels have to be removed at the
workshop, do not forget to hand over the
socket for the security wheel bolts along
with the car key.
f To loosen or tighten the wheel bolt with anti-
theft protection, the adapter must be used
between the wheel bolt and the wheel
bolt wrench.
f When positioning the wrench socket, ensure
that it engages fully in the teeth of the
wheel bolt.
Flat Tire 1. Stop the vehicle as far away from the driving lane as possible.
The vehicle must be parked on a firm and flat
surface offering adequate grip.
2. Switch emergency flasher on.
3. Apply the parking brake.
4. Put the vehicle in 1st gear or move the PDK selector lever to position P.
5. Straighten the front wheels.
6. Remove the ignition key, or the control unit on vehicles with Porsche Entry & Drive, in order to
lock the steering and pr event the engine from
being started.
7. Get all passengers to leave the vehicle.
8. Set up the warning triangle at a suitable distance.Filling in tire sealantThe tire sealant and compressor with pressure
tester can be found in the tool tray under the
loadspace floor in the luggage compartment.
The tire sealant can be used to seal small cuts,
especially in the tire tread.
Sealing the tire with the tire sealant is only an
emergency solution so you can drive to the
nearest workshop. Even if the tire is air-tight,

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Minor Repairs
Battery carefEnsure that battery is securely mounted.
f Keep terminals and connections clean and
properly tightened. Corrosion can be
prevented by coating the terminals and
connections with petroleum jelly or silicone
spray.
f Ensure that vent caps ar e securely tightened to
prevent spillage.
Checking the electrolyte fluid level
(only on low-maintenance batteries)
Generally, the electrolyte level must be checked
more often in summer than in the winter, and more
often when driving long distances.
f When adding water, use only clean containers.
In no case may alcohol (e.g. window cleaner
residues) be permitted to enter the battery.
f Unscrew and open the filler vent caps of each
cell.
With the car on a level surface, the fluid level
should meet the indicator mark in each cell.
f If necessary, top up with distilled water. Do not
use acid. Only fill up to the mark, otherwise the
electrolyte will overflow when the battery is
being charged and cause damage.
Winter operationDuring the winter months, battery capacity tends
to decrease as temperatures drop. Additionally,
more power is consumed while starting, and the
headlights, heater, rear window defogger, etc.,
are used more frequently.
f Let your Porsche dealer test the battery's
capacity before winter sets in.Vehicle storageIf the car stands for long periods in the garage or
workshop, the doors and lids should be closed.
f Remove the ignition key and, if necessary,
disconnect the battery.
Notes on operation
f When the battery is disconnected, the alarm
system ceases to function.
If the vehicle was locked before the battery
was disconnected, the alarm will be triggered
when the battery is reconnected.
To deactivate the alarm system:
f Lock the vehicle and unlock it again.
Alarm system, central locking
f The status of the central locking and alarm
system is not changed by disconnecting the
battery. Maintenance notes
Even if you put your vehicle out of operation, the
battery still discharges.
The battery will discharge more quickly if your
vehicle is not driven on a daily basis over a
distance of several miles. The more often you
drive your vehicle, and
the longer the distance
driven on each trip, the more opportunity the
vehicle‘s charging system w ill have to recharge the
batteries.
f To preserve its efficiency, charge the battery
about every 6 weeks.
f Check the battery acid level and top off with
distilled water if necessary.
f Store a battery that has been removed in a
dark, cool place, but not subject to freezing.

Minor Repairs
309
Removing headlights1. Switch off the ignition and remove the ignition
key, or pull out the control unit on vehicles with
Porsche Entry & Drive.
2. Open the engine compartment lid.
3. Take a socket wrench out of the tool kit.
4. Place the socket wrench on the release and turn in direction of arrow until you feel and hear
the headlight being released. 5. Pull headlight approx. 4 in. (10 cm) forward
out of the fender.
6. Press back the releas e tab of the connector A
and pull connector off.
7. Press the release lever on the underside of the rapid-action coupling on the breather hose B
up and pull it off.
8. Pull headlight out completely.
Installing headlights1. Move the headlight release mechanism to unlock position. Insert the headlight into the
guide rails, attach the connector A and
breather hose B and then slide the headlight
fully into the fender.
2. Press the headlight to the rear and simultaneously turn the socket wrench in
direction of arrow. You should feel and hear the
headlight locking mechanism engage.
3. Check that the headlight is seated securely.
4. Remove the socket wrench and place it in the tool kit.
5. Close engine compartment lid.

312
Minor Repairs
Side Turn Signal LightChanging bulb (WY5W)fOpen the door.
Caution!
Danger of crushing if th e door is closed while
removing the turn signal light.
f Do not close the door while removing the turn signal light. f
Press the securing spring on the turn signal
light in through the opening in the fender with
your finger and remove the turn signal light.
1. Turn the bulb socket counter-clockwise and remove it.
2. Remove defective bulb and replace it.
f Insert the bulb holder and turn it clockwise as
far as it will go. 1. Insert front turn signal light.
2. Press in securing spring until it
engages securely.
f Check operation of bulb.

Minor Repairs
313
Licence Plate LightsChanging bulb
(C5W)
1. Open the tailgate.
2. Position the blade of a screwdriver at the left on the light cover and lever off the light cover.
3. Remove bulb and replace it.
4. Clip in the light cover.
5. Close the tailgate and check operation of bulb.
Side Marker LightChanging bulb (W5W)1. Remove the cap in the wheel housing liner with
a screwdriver.
2. Insert the screwdriver into the opening in the wheel housing liner parallel to the side marker
light housing (in direction of travel).
By pressing with the screwdriver, disengage
the securing spring of the side marker light
housing. 1. Press the cable retaining clip and detach the
cable from the bulb holder.
2. Turn the bulb socket counter-clockwise and remove it.
3. Remove defective bulb and replace it.
4. Insert the bulb holder and turn it clockwise as far as it will go.
5. Push the cable onto the bulb holder until it audibly engages.

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Minor Repairs
1. Insert front side marker light.
2. Press in securing spring until it engages
securely.
f Check operation of bulb.
Changing Light-Emitting Diodes
and Long-Life BulbsDaytime driving lights, front side lights, front turn
signal lights, gas-discharge bulbs in Bi-Xenon
headlights, as well as additional brake lights and
interior lights have light-emitting diodes and long-
life bulbs.
The LEDs cannot be replaced individually.
Replacement of the long-life bulbs involves
a greater amount of installation work.
fHave defective LEDs and bulbs replaced in
a qualified specialist workshop.
Please contact a qualified specialist workshop.
We recommend that you have an authorized
Porsche dealer to do this work as they have
trained workshop personnel and the necessary
parts and tools.
Headlight AdjustmentfCheck tire pressure and adjust if necessary.
f Please see the chapter “TIRE PRESSURE FOR
COLD TIRES (68 °F/20 °C)” on page 326.
f Please see the chapter “REPLACING BULBS”
on page 308.

Minor Repairs
319
Towing lugThe towing lug is stored in the tool storage box
under the luggage compartment floor.
Caution!
Risk of damage to the vehicle.
f Use the towing lug only for an emergency to
remove the vehicle off the road. The towing lug
is to be used only to pull the vehicle onto the
flat bed, tractor or towing aparatus if the
vehicle will roll freely. Under no circumstances
is the vehicle to be secured using the towing
lug. f
Never use the towing lug to tow this or any
other vehicle.
f Bear in mind the limited ground clearance of
your car on uneven surfaces.
Fitting the towing lug
1. Press the lower edge of the appropriate plastic cover into the bumper until the
cover disengages.
2. Pull cover out of the bumper and let it hang by its thread.
3. Screw in towing lug A as far as it will go
(left-hand thread) and tighten hand-tight.
Removing the towing lug
1. Unscrew the towing lug A.
2. Insert plastic cover at the lower edge of the opening.
3. Fold the cover up and press on its upper edge to engage it in the bumper.

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Minor Repairs
Pulling vehicle onto flat bed1. Position wooden ramps at the base of the flat bed to reduce the angle of the pull.
2. Reel in the hoist cable and check the underside of the vehicle for any interference.
Tying down vehicle on flat bed1. Carefully feed towing straps through the opening in the rear wheels.
Make sure metal parts of straps do not
damage rim.
Make sure the strap is flat over the rim bead.
Make sure brake backing plate is not
damaged.
2. Secure straps to rear of flat bed.
3. Reel in hoist cable only far enough to tension
tie-down straps. 4. Carefully feed towing straps through the
opening in the front wheels.
Make sure metal parts of straps do not
damage rim.
Make sure the strap is flat over the rim bead.
Make sure brake backing plate is not
damaged.
5. Secure straps to front of flat bed.
6. Release tension on ho ist cable, but do not
disconnect.
Use hoist cable as safety cable.
Transporting the vehicle on car trains,
ferries and car transportersf Tie the vehicle down only at its wheels.
f Deactivate interior surveillance and the
inclination sensor.
f Please see the chapter “ALARM SYSTEM AND
PASSENGER COMPARTMENT MONITORING”
on page 247.