headlight bulb AUDI A4 2008 B8 / 4.G Owners Manual
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Page 6 of 342
Contents 4Self-help
. . . . . . . . . . . . . . . . . . . . .
Self-help
. . . . . . . . . . . . . . . . . . . . . . . .
Warning triangle . . . . . . . . . . . . . . . .
First-aid kit . . . . . . . . . . . . . . . . . . . . .
Fire extinguisher . . . . . . . . . . . . . . . .
Tools and Tyre Mobility System . . .
Compact temporary spare wheel*
Tyre repairs . . . . . . . . . . . . . . . . . . . .
Changing a wheel . . . . . . . . . . . . . .
Jump-starting . . . . . . . . . . . . . . . . . .
Tow-starting and towing away . . .
Fuses and bulbs
. . . . . . . . . . . . . . . .
Fuses . . . . . . . . . . . . . . . . . . . . . . . . . .
Bulbs . . . . . . . . . . . . . . . . . . . . . . . . . .
Changing bulbs for headlights . . .
Changing bulb for front fog lights
Changing bulbs for rear lights in
side panel . . . . . . . . . . . . . . . . . . . . . .
Changing bulbs in boot lid . . . . . . .
Number plate light . . . . . . . . . . . . . .
Technical data
. . . . . . . . . . . .
General notes
. . . . . . . . . . . . . . . . . .
Explanation of technical data . . . .
Dimensions . . . . . . . . . . . . . . . . . . . .
Capacities . . . . . . . . . . . . . . . . . . . . .
Vehicle identification data . . . . . . .
Performance, weights and
dimensions
. . . . . . . . . . . . . . . . . . . .
Petrol engines . . . . . . . . . . . . . . . . .
Diesel engines . . . . . . . . . . . . . . . . .
Index
. . . . . . . . . . . . . . . . . . . . . . . . 281
282
282
282
283
283
284
285
288
293
295
300
300
304
306
310
311
314
315319
320
320
320
321
321
323
323
325
329
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Page 39 of 342
Driver information system37
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Light sensor / rain sensor defective
Automatic headlights / automatic wipers defective
If the symbol appears, this means that the light sensor / rain
sensor is not functioning.For safety reasons, the dipped beam head-
lights will then be switched on permanently when the light switch
is set to the AUTO position. However, you can still switch the lights
on and off in the normal way with the light switch. If the rain sensor
is defective, the functions operated via the windscreen wiper lever
will still be available. You should have the light sensor / rain sensor
checked by a qualified workshop as soon as possible.
Brake pads worn
Brake pads!
If the symbol lights up, have the front brake pads (and, for
safety's sake the rear pads as well) inspected by a qualified
workshop.
Applies to vehicles: with bulb monitorBulb monitor
The bulb monitor checks whether the lights on the vehicle
are working.The bulb monitor checks whether the lights on the vehicle are
working. If it detects a defective bulb on the vehicle it will show a
yellow warning symbol together with a message indicating which
light is not working.
Bulb failure
If the symbol
lights up, this means that one of the turn signals
(front or rear), headlights, brake lights, rear lights, fog lights or the
rear fog light is not working.
WARNING
•
Bulbs are sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
•
Incorrect handling of the high-voltage element of xenon gas-
discharge bulbs* can have potentially fatal consequences.Note
Have the components repaired or replaced by a qualified
workshop.Applies to vehicles: with washer fluid warning systemWasher fluid level low
Please top up washer fluid
If the symbol lights up, top up the fluid for the windscreen
washer and headlight washer system* ⇒page 267.
Fuel level low
Please refuel
When this symbol
comes on for the first time, there are about
8 litres of fuel left in the tank. You should fill up as soon as possible
⇒page 252.
If this warning symbol lights up although the fuel tank is sufficiently
filled, there is a malfunction in the fuel tank system. The display will
also show the driver message Tank system malfunction ! Contact
workshop. Please contact a qualified workshop.
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Page 63 of 342
Lights and vision61
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
Applies to vehicles: with xenon headlight bulbsDynamic headlight range controlHeadlights with xenon gas-discharge bulbs automatically adapt to
suit the load being carried when the engine is switched on. The
headlights are also automatically adjusted when the vehicle is in
motion (e.g. when accelerating and braking).Applies to vehicles: with adaptive lightadaptive light
This feature provides better illumination when you drive
through a corner.The adaptive light gives better illumination of the bend and the side
of the road when driving through a corner ⇒fig. 59. The adaptive
light is controlled automatically, depending on the speed of the
vehicle and the steering wheel angle.
The headlights are regulated automatically when you drive through
a corner, depending on how far you turn the steering wheel. To
avoid having a dark spot in front of the vehicle the two headlights
are directed at different angles.
Note
The system is active at speeds from approximately 10 km/h to
110 km/h.Hazard warning lights
The hazard warning lights are used to make other road
users aware of your vehicle in hazardous situations.– Press the switch
to switch the hazard warning lights
on or off ⇒fig. 60.
All four turn signals flash simultaneously when the hazard warning
lights are switched on. The two turn signal indicator lamps
and
the indicator lamp in the switch
will flash at the same time. The
hazard warning lights also work when the ignition is switched off.
The hazard warning lights come on automatically in the event of an
accident in which an airbag is triggered or in the case of an emer-
gency stop (full brake application).
Note
You should switch on the hazard warning lights to warn other road
users, for instance:
Fig. 59 adaptive light
when driving
Fig. 60 Switch for
hazard warning lights
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Page 235 of 342
Towing a trailer233
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data additional mirrors fitted. Both exterior mirrors should be mounted
on hinged extension brackets. Adjust the mirrors to give sufficient
vision to the rear.
Headlights
Before starting a journey, check the headlight beam settings with
the trailer hitched up. If necessary, alter the height of the headlight
beams by means of the headlight range control ⇒page 60.
Power supply
When you remove the ignition key the power supply to the trailer is
interrupted.
Removable ball joint coupling
Vehicles with a factory-fitted towing bracket are equipped with a
removable ball joint coupling. It is carried under the floor panel on
the left-hand side of the luggage compartment and is secured by a
strap.
Note
We recommend having the car serviced between the normal inspec-
tion intervals if it used frequently for towing a trailer.Applies to vehicles: with towing bracketTrailer stabilisation system
Trailer stabilisation helps to reduce the risk of the vehicle
skidding when towing a trailer.The trailer stabilisation system is operational only when the ESP is
switched on and there is no malfunction in the ESP ⇒page 17.
When is the trailer stabilisation system activated?
Trailer stabilisation is active when the following requirements are
met:•
The ESP must NOT be switched off ⇒page 222,
•
The trailer connector must be properly secured in the vehicle
socket.
•
Vehicle speed must be higher than approx. 60 km/h.
How trailer stabilisation works:
In many cases, the driver can stabilise a swaying trailer by manually
braking the vehicle.
However, if the ESP detects that the trailer is swaying and this is
affecting the towing vehicle, it will automatically brake the vehicle
to stabilise the trailer by slowing it down. The warning lamp
will
light up in the instrument cluster. If possible, do not turn the
steering wheel at this stage.
In order to warn traffic behind you, the brake lights will come on
during this automatic braking operation.
A trailer weighing less than 70% of the kerb weight of the towing
vehicle may sway quite considerably without the trailer stabilisation
system intervening. This can happen when the swaying movements
of the light-weight trailer are not or hardly passed on to the towing
vehicle and are therefore not detected by the ESP.
If the system for activating the trailer brake lights is defective, this
will be indicated in the instrument cluster display ⇒page 37, “Bulb
monitor ”.
Requirements for correct functioning of the trailer
stabilisation system
If these conditions are not met in full, the trailer stabilisation system
will only intervene to a limited extent or not at all ⇒.
•
The electrical connection between the towing vehicle and the
trailer must be functioning correctly, without any defects.
•
The load on the trailer must be properly secured.
•
The tyre pressures on both the vehicle and the trailer must be
adapted to the load that is being carried.
•
Where possible, operate the trailer with the maximum permitted
draw bar weight.
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Page 303 of 342
Fuses and bulbs301
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data The seats with electrical adjustment are protected by circuit
breakers. These reset automatically after a few seconds when the
overload has been corrected.
Fuse list
Fuse listFuse list
No.
Electrical equipment
amps
Fuse carrier (black)
1
Dynamic steering
5
2
Clutch sensor
5
3
Garage door opener
5
4
Audi lane assist
10
5
Air conditioner
5
6
Headlight range control (right)
5
7
Headlight range control (left)
5
8
Control unit 1 for vehicle's electrical system
5
9
Interior mirrors
5
10
Selector gate
5
11
Heated washer jets
5
12
Air conditioner
5
No.
Electrical equipment
amps
Fuse carrier (brown)
1
Vacant
2
Clutch sensor
5
3
Fuel pump (diesel/petrol)
20/25
4
Auxiliary water pump (3.2 FSI)
5
5
Seat heating (left-side) with/without seat venti-
lation
30
6
Electronic stabilisation program
10
7
Horn
25
8
Electric window motor (left door)
30
9
Wiper motor
30
10
Electronic stabilisation program
25
11
Door control unit (driver's side)
15
12
Rain and light sensor
5
No.
Electrical equipment
amps
Fuse carrier (red)
1
Vacant
2
Vacant
3
Lumbar support
10
4
Dynamic steering
35
5
Interior light
5
6
Control unit 1 for vehicle's electrical system
35
7
Control unit 1 for vehicle's electrical system
30
8
Control unit 1 for vehicle's electrical system
30
9
Tilting panorama roof/sun roof
20
10
Control unit 1 for vehicle's electrical system
30
11
Vacant
12
Convenience electronics
5
No.
Electrical equipment
amps
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Page 306 of 342
Fuses and bulbs 304BulbsChanging bulbs
Changing bulbs requires a certain degree of practical
skill.You can change the following bulbs for exterior lights yourself:•
Halogen headlights: Bulb for dipped headlights
•
Halogen headlights: Bulb for main beam headlights
•
Bulb for fog light
•
Bulbs for rear lights in boot lid
•
Bulbs for rear lights in side panel
•
Bulbs for number plate light
The following bulbs should only be changed by a qualified work-
shop:
•
Halogen headlights: Bulb for turn signals
•
Halogen headlights: Bulb for side lights
•
Xenon headlights*: Bulb for turn signals
•
Xenon headlights*: Light source for daytime running
lights/parking lights
•
Bulb for headlights: Bi-xenon lights ⇒
•
Light source for turn signal in exterior mirror housing
•
Light source for high-level brake light
As a rule, you require a certain degree of practical skill to change
defective bulbs. This applies in particular to those bulbs which are
only accessible from the engine compartment.
If in doubt, we recommend that you have defective bulbs changed
by a qualified workshop or qualified mechanic.
If you do decide to change bulbs in the engine compartment your-
self, be aware of the safety risks involved ⇒page 255 ⇒.
Types of bulbs
You must only replace a bulb with a bulb of the same type. Informa-
tion regarding e.g. the wattage can be found on the base of the
bulb.
4
Cigarette lighter
15
5
Parking aid
5
6
Phone pre-installation without handsfree sys-
tem (VDA interface)
5
7
Control unit for adaptive cruise control
15
8
Vacant
9
EPB switch (electro-mechanical parking brake)
5
10
Lane change assist feature
5
11
Seat heating, rear
5
12
Airbag
5
No.
Electrical equipment
amps
Front bulb (12 V)
Vers io n
Dipped-beam headlights (halogen)
55 W (H7)
Main beam headlights (halogen)
55 W (H7)
Front fog lights
55 W (H7)
Rear bulb (12 V)
Vers io n
Brake lights / tail lights
P 21 W
Turn signals (rear)
P 21 W
Reversing lights
W 16 W
Rear fog light
H 21 W
Number plate lights
5 W
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Page 307 of 342
Fuses and bulbs305
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
WARNING
•
Take particular care when working on components in the
engine compartment if the engine is warm - risk of burns!
•
Bulbs are sensitive to pressure. The glass can break when you
touch the bulb, causing injury.
•
Incorrect handling of the high-voltage element of xenon gas-
discharge bulbs* can have potentially fatal consequences.
•
When changing bulbs, please take care not to injure yourself on
sharp edges, in particular on the headlight housing.Caution
•
Always remove the ignition key before carrying out any work on
the electrical system - danger of short circuiting!
•
Switch off the lights or parking lights before you change a bulb.
•
Take good care to avoid damaging any components.
•
Removing the lights in particular can lead to the paintwork
becoming damaged. This is another reason why we recommend
having the bulbs changed by a qualified workshop.For the sake of the environment
Please ask your specialist retailer how to dispose of used bulbs in
the proper manner.
Note
Place the parts you have removed on a soft cloth so that they do not
become scratched.•
Please check at regular intervals that all lighting (especially the
exterior lighting) on your vehicle is functioning properly. This is not
only in the interest of your own safety, but also in that of all other
road users.
•
Before changing a bulb, make sure you have the correct new
bulb.
•
Do not touch the glass part of the bulb with your bare hands, use
a cloth or paper towel instead. Otherwise, the fingerprints left on
the glass will vaporise as a result of the heat generated by the bulb,
be deposited on the reflector and impair its surface.
Bulbs with a bayonet fastenerBulbs with a bayonet fastener must be changed as follows:
Removing the bulb
– Lightly press the defective bulb into the bulb holder, then
turn it anti-clockwise and remove it.
– Do not touch the glass part of the new bulb with your
bare hands, use a cloth or paper towel instead.
Fitting the bulb
– Fit the new bulb, pressing it into the bulb holder, and turn
it clockwise as far as it will go.
– If necessary, use a cloth to remove any fingerprints from
the glass part of the bulb.
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Fuses and bulbs 306Bulb holders with a bayonet fastenerIn the case of bulb holders with a bayonet fastener please
proceed as follows:
Removing the bulb holder
– Turn the bulb holder in the direction of the arrow
⇒fig. 287 as far as it will go and then take the bulb
holder out of the light unit.
Fitting the bulb holder
– Insert the bulb holder into the light unit, making sure you
keep the bulb holder straight, i.e. the rubber seal makes
even contact all around.
– Turn the bulb holder in the direction indicated by the
arrow ⇒fig. 287 as far as it will go.
Changing bulbs for headlightsRemoving and installing headlightsThe description for removing the headlight refers to the left
headlight; in principle the same procedure applies to the
right headlight.
Removing
– Switch off the ignition and the lights.
– Open the bonnet.
Fig. 287 Diagram: Bulb
holder with a bayonet
fastener
AA
AB
Fig. 288 Trim panel:
Attachment points are
marked by arrowsFig. 289 Headlight
unit: Attachment
points are marked by
arrows
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Fuses and bulbs307
Controls
Safety
Driving tips
General maintenance
Self-help
Technical data
– Take the screwdriver and the interchangeable Torx socket
out of the vehicle tool kit.
– Remove the screws ⇒page 306, fig. 288 that secure the
trim panel to the lock carrier and detach the trim panel.
– Slacken the two screws that secure the headlight to the
lock carrier and the two screws at the underside of the
headlight (the screws at the underside should not be
slackened more than five turns) ⇒page 306, fig. 289.
– Carefully pull the headlight forward about 60 mm.
– Release and unplug the electrical connector.
– Carefully take the headlight out towards the front (swivel
it slightly if necessary).
Installing
– Perform all of the above steps in reverse sequence.The headlight must be inserted in two guides (on the underside of
the headlight). This is the only way to ensure that the headlight is
installed in the correct position. To determine whether the headlight
is correctly installed, check that it is aligned flush with adjacent
body parts (such as the wing panel).
Do not interchange the securing screws.
Caution
Please take particular care not to damage or scratch the adjacent
parts of the body when removing or installing the headlights.
Removing bulb for main beam headlights– Remove the headlight ⇒page 306.
– Take off the rubber cap ⇒fig. 290 ⇒ in “Changing
bulbs” on page 304.
– Press the connector in the direction of the arrow
⇒fig. 291.
– Remove the connector together with the bulb from the
headlight housing.
– Disconnect the connector from the base of the bulb
⇒ in “Changing bulbs” on page 304.
Fig. 290 Headlight
unit: Rubber cap is
highlightedFig. 291 Bulb holder
for main beam head-
lights
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Fuses and bulbs 308Installing the bulb for the main beam headlights
When installing a bulb, the lug on the base of the bulb
must be inserted into the appropriate mounting on the
bulb housing.– Attach the new bulb to the connector ⇒ in “Changing
bulbs” on page 304.
– Insert the bulb carefully into the bulb housing. Start by
placing the base of the bulb directly behind one of the
retaining hooks so that the lug fits into the recess on the
bulb housing.– Press the connector in the direction of the arrow
⇒fig. 293 until the bulb engages.
– Check that the bulb is securely seated in the bulb
housing.
– Fit the rubber cap and install the headlight ⇒page 306.
– Check whether the new bulb is working.
– Have the headlight settings checked.
Note
Ensure that the rubber cap is seated correctly so that no water can
enter the unit.Removing bulb for dipped headlights
Fig. 292 Bulb with
connector: The lug on
the base of the bulb is
highlightedFig. 293 Fitting bulb
for main beam head-
lights
Fig. 294 Headlight
unit: Cover
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