2009 PORSCHE 911 service

Practical Tips, Emergency Service
267
Emergency Starting with Jumper
Cables If the battery is discharged, e.g. in winter or after
the car has been parked for a long time, the bat-
tery of another car can be used for starting with
the help of jumper cables.
Make sure the voltage of both batteries is the
same. Both batteries must be 12 volt types.
The capacity (Ampere hours, Ah) of the booster
battery must not be substantially less than that of
the discharged battery.
The discharged battery must be correctly con-
nected to the vehicle’s electrical system.
fPlease see the chapter “BATTERY” on
Page 261.
fPlease see the chapter “EMERGENCY UNLO-
CKING OF THE LUGGAGE COMPARTMENT LID”
on Page 260.
Note
fDo not try to start the car by pushing or tow-
ing. Damage to the catalytic converters and
other components of the car may result.
Warning!
Risk of short circuit, damage and explosion,
resulting in serious personal injury or death.
fUse only jumper cables of adequate diameter
cross-section and fitted with completely insu-
lated alligator clips.
fFollow all warnings and instructions of the
jumper cable manufacturer.
fWhen connecting jumper cables, make sure
that they cannot get caught in any moving
parts in the engine compartment.
The jumper cables must be long enough so
that neither vehicles nor cables touch another.
fThe vehicles must not be in contact, otherwise
current might flow as soon as the positive ter-
minals are connected.
fThe cable clamps must not be allowed to con-
tact each other when one end of the jumper ca-
bles are connected to a battery.
fEnsure that tools or conductive jewelery (rings,
chains, watch straps) do not come into contact
with the positive jumper cable or the positive
battery post.
fImproper hook-up of jumper cables can ruin
the alternator. Danger of caustic burns from escaping acid.
fDo not lean over the battery.
Danger of gas explosion.
fImproper use of booster battery to start a
vehicle may cause an explosion, resulting in
serious personal injury or death.
fKeep sources of ignition away from the bat-
tery, e.g. open flame, burning cigarettes or
sparking due to cable contact or welding work.
fA discharged battery can freeze even at 23 °F/
–5 °C.
Before connecting jumper cables, a frozen
battery must be thawed out.

268
Practical Tips, Emergency Service
Connect jumper cables in the following
sequence: Always observe the sequence below:
1. Connect the positive lead (red) to the
positive terminal of the discharged battery
first, then connect it to the positive terminal of
the donor battery.
2. First connect the negative cable (black) to
the negative terminal of the donor battery, then
connect it to a suitable grounding point on the
vehicle with the discharged battery.
This grounding point must lie as far as possible
from the battery.
For example, a solid metal part or the engine
block are suitable grounding points.
If no suitable grounding points are to be found
on either vehicle, the negative cable must
carefully be connected directly to the negative
terminal of the battery.
If a suitable grounding point is to be found only
on the donor vehicle, the negative cable must
first be connected to the terminal of the
discharged battery, then to the grounding point
of the donor vehicle.
3. Run the engine of the donor car at a higher
speed.4. Start the engine.
An attempted start using jumper cables should
not last more than 15 seconds. Then allow a
waiting period of at least one minute.
fNote
Before disconnecting the jumper cables, elec-
trical loads such as the heated rear window
and the heating fan blower should be switched
on (the vehicle’s lights must not be switched
on). This reduces voltage peaks which may oc-
cur when disconnecting the jumper cables.
With the engine running, remove both jumper
cables in reverse order.

Practical Tips, Emergency Service
269
Bulb chart
Ty p e , r a t i n g
Low beam Philips, D2S 35W
Additional high beam without cornering light H11, 55W
Additional high beam with cornering light H7 LL, 55 W
Turn signal indicator light, side WY5W
License plate light C5W
Lights, Replacing Bulbs
Warning!
Risk of short circuit.
fAlways switch off the relevant consumer when
changing bulbs.
Risk of serious personal injury or death.
The Bi Xenon headlights are under high
voltage when installed.
fBe careful during all work in the area of the Bi
Xenon headlights.
Risk of damage. Bulbs of a higher wattage
can damage the lamp housing.
fOnly the bulbs shown in the chart may be used.
fNew bulbs must be clean and free from oil,
grease and fingerprints. Therefore, never
touch bulbs with your bare hands.
Use a cloth or soft paper while replacing bulbs.

270
Practical Tips, Emergency Service
Headlights
Caution!
Risk of damage to headlights due to exces-
sive temperatures and abrasion.
fTo ensure optimum ventilation, do not cover
the gap between headlight and body
(e.g. “stone guards” or films).
fUse soapy water only to clean light lenses and
plastic headlight lenses.
In no case may chemical cleaners or other vol-
atile cleaning fluids be used.
fTo prevent scratches, do not rub with a dry or merely moist cloth, tissue or insect sponges.
Removing headlights1. Unscrew plastic nut A.
Detach the side carpeting.2. Remove rubber plug B from the unlocking
opening.

Practical Tips, Emergency Service
271
3. Place socket wrench (tool kit) on the unlocking
spindle.
The handle of the wrench should point horizon-
tally to the rear.
4. Turn socket wrench approx. 180° A. The
headlight is unlocked and pushed forward
slightly during this process.
5. Turn socket wrench back until it is pointing
vertically downward B and leave in position.
6. The headlight is now unlocked and can be
pulled forward out of the fender.
Installing1. Insert headlight into the guide rails and push
fully into the fender.
2. Push headlight to the rear and at the same
time turn the socket wrench until it points
horizontally to the rear C.
The headlight locking device must perceptibly
and audibly engage.
3. Insert the rubber plug into the unlocking
opening and secure the carpet.
Check the function of all lights.
Low beam, high beam and additional high
beamOpening the lid of the headlight housing
1. Unscrew the 4 screws A.
2. First lift release tab B, then push both release
tabs C upwards and take off lid.

272
Practical Tips, Emergency Service Changing bulb for low beam and high beam
(without cornering light)
1. Turn the plug counter-clockwise (bayonet lock)
and pull it off.2. Disengage both fixing loops A.
3. Replace defective bulb B.
When doing so, ensure bulb is seated properly.
4. Engage both fixing loops A, push on plug and
turn right as far as the stop.

Practical Tips, Emergency Service
273
Changing bulb for additional high beam
(without cornering light
1. Turn the bulb holder.
Turn it counter-clockwise on the left headlight
and clockwise on the right headlight.
Take bulb holder out of the headlight housing.2. Pull both plug release tabs apart.
Pull plug out of the bulb holder.
3. Replace the defective bulb with bulb holder.
4. Reassemble in reverse order.Closing lid of headlight housing
1. Push on lid until it perceptibly engages.
2. Fasten lid with the 4 screws.

274
Practical Tips, Emergency Service Changing bulb for low beam and high beam
(with cornering light)
1. Undo the 3 screws on the control unit and
remove the control unit.2. Turn the plug counter-clockwise and pull it off. 3. Disengage both fixing clips.
4. Replace defective bulb.
When doing so, ensure bulb is seated properly.
5. Engage both fixing clips, push on plug and turn
right as far as the stop.
6. Fit control unit and screw tight.
7. Push on housing cover until it perceptibly
engages.
8. Fasten housing cover with the 4 screws.