PORSCHE 911 GT3 2010 5.G Owners Manual

220
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).
fOnly use soapy water to clean light lenses and
plastic headlight lenses.
In no case may chemical cleaners or other
volatile 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.
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Practical Tips, Emergency Service
221
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.
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222
Practical Tips, Emergency Service Halogen headlights:
Changing bulb for low beam
1. Pull off plug A.
2. Disengage fixing loop B.
3. Replace defective bulb.
When doing so, ensure bulb is seated properly.
4. Reassemble in reverse order.Bi-Xenon headlight (without cornering light):
Changing bulb for low beam and high beam
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.
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Practical Tips, Emergency Service
223
Bi-Xenon headlight (without cornering light):
Changing bulb for additional high beam
Halogen headlights:
Changing bulb for low beam
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.
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224
Practical Tips, Emergency Service Bi-Xenon headlight (with cornering light):
Changing bulb for low beam and high beam
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
clockwise until stop position is reached.
6. Reinstall the control unit and screw tight.
7. Push on housing cover until it perceptibly
engages.
8. Fasten housing cover with the 4 screws.
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225
Bi-Xenon headlight (with cornering light):
Changing bulb for additional high beam
1. Turn cover counter-clockwise and take off.2. Pull off plug. 3. Disengage fixing clip.
4. Replace defective bulb.
5. Engage fixing clip, insert plug, reinstall the
cover and rotate clockwise to stop.
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226
Practical Tips, Emergency Service
Changing bulb for side marker light1. 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 turn signal
housing (in direction of travel).
By pressing with the screwdriver, disengage
the securing spring of the turn signal housing.3. Swivel out the indicator light and undo bulb
holder (bayonet lock).
4. Remove the bulb from the holder and replace
it. Insert holder.
Check operation of the light.
5. Insert the turn signal’s retaining lugs A into the
side section at the front.
Push in turn signal until the securing spring B
is felt to engage.
6. Press the cap into the wheel housing liner.10_GT3_21.book Seite 226 Donnerstag, 4. Juni 2009 12:48 12

Practical Tips, Emergency Service
227
License Plate LightChanging bulb1. Unscrew both screws A and remove the light
lens.
2. Remove defective bulb from between the
contact springs and replace.
3. Reassemble in reverse order.
Check operation of the light.
Front Side Lights, Front Turn
Signal Lights, Daytime Running
Lights, Tail Lights and Additional
Brake LightThese lights are equipped with light-emitting
diodes or light modules and cannot be replaced
individually. Replacement also involves a greater
amount of installation work.
fHave the defective light replaced at your autho-
rized Porsche dealer.
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228
Practical Tips, Emergency Service
Adjusting HeadlightsfPlease see the chapter “LIGHTS, REPLACING
BULBS” on Page 219.
Adjustment
The adjustment is made with the vehicle ready to
drive and the fuel tank completely filled.
The driver’s seat must be loaded by a person or a
165 lbs. (75 kg) weight and the tire pressures
must meet the prescribed values.
After being loaded, the car must be rolled a few
meters so that the suspension can settle.
For checking the headlight adjustment, the
vertical position of the cutoff of the low beam (see
fig.) has to be projected on a vertical screen (wall)
in distance of 24.6 ft. (7.5 m) from the front lens
of the headlamp.
The correct position of the cutoff is 2.0 in. (5 cm)
at 24.6 ft. or 7.5 m (0.4°) below a horizontal line,
x cm from ground to the center of the headlamp
lens.Lateral adjustment of the headlights should be
carried out at a specialist workshop with an optical
adjustment unit.
Distance
Visual aim shall be performed at not less than
24.6 ft. (7.5 m) (this value is a rounded down
conversion from the 25-foot distance typical of
field aim using a screen). The 24.6 ft. (7.5 m)
distance is measured from the headlamp lens to
the viewing screen.
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Practical Tips, Emergency Service
229
Floor
The surface upon which the vehicle rests is flat
and approximately level.
Screen
The screen upon which headlamp beams are
projected is perpendicular to the floor and the
vehicle’s longitudinal axis, flat, uniformly light in
color, unobstructed, and wide and high enough to
accommodate the vehicle beam patterns to be
aimed.
The screen should be wide enough to provide at
least 3.3 ft. (1 m) of space outboard of the
vehicle’s headlamp spacing.
Adjustment screws
fDetach side carpeting in luggage compart-
ment.
Unscrew plastic nut A.
Open the cover of the appropriate adjustment
screw.
The setting is adjusted by turning the hexagon
socket screws right or left, as appropriate. Halogen headlights and Bi-Xenon headlights:
B - Height adjustment
Note
fDo not alter the lateral adjustment.
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