Lights, Switches-Exterior Audi A8 D3

Headlights, servicing

Contact Corrosion

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

Halogen headlights, overview

Note. The following list refers to (Scheme 1).

1. Headlight lens with integrated turn signal housing
2. Turn signal bulb/parking light 12 V, 21/5 W orange Changing bulb. See «REPLACING TURN SIGNAL BULB/PARKING LIGHT»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__replacing-turn-signal-bulbparking-light) .
3. Bulb holder, turn signal/parking light
4. Reflector for low beam, high beam and standing light
5. Bulb for low beam H1 - 12 V, 55 W Changing bulb. See «HEADLIGHT BULBS, REPLACING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
6. Bulb for high beam H7 - 12 V, 55 W Changing bulb. See «REPLACING BULB FOR HIGH BEAM»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__replacing-bulb-for-high-beam) .
7. Headlight housing with enclosure seal for headlight lens
8. Housing lid, large
9. Housing lid, small
10. Retaining clamps for headlight lens (6 x)

Gas discharge (xenon) headlights with automatic headlight beam adjustment, general overview

Note. The following list refers to (Scheme 2).

1. Headlight lens with integrated turn signal housing
2. Turn signal bulb/parking light 12 V, 21/5 W orange Changing bulb. See «REPLACING TURN SIGNAL BULB/PARKING LIGHT»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__replacing-turn-signal-bulbparking-light) .
3. Bulb holder, turn signal/parking light
4. Reflector for low beam, high beam and standing light
5. Gas discharge bulb 12 V, 35 W Changing bulb. See «REPLACING LOW BEAM BULB (GAS DISCHARGE HEADLIGHT)»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__replacing-low-beam-bulb-gas-discharge) .
6. Securing ring (bayonet connection) for gas discharge lamp
7. Bulb for high beam H1 - 12 V, 55 W Changing bulb. See «REPLACING BULB FOR HIGH BEAM»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__replacing-bulb-for-high-beam) .
8. Headlight housing with enclosure seal for headlight lens
9. Housing lid, large
10. Housing lid, small
11. Igniter for gas discharge lamps -N195- Removing and installing. See «IGNITER FOR GAS DISCHARGE LAMPS -N195-, REMOVING AND INSTALLATION»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__igniter-for-gas-discharge-lamps-n195) .
12. Actuating motor for vertical aim adjustment (step motor) Removing and installing. See «ADJUSTING MOTOR FOR AUTOMATIC VERTICAL AIM CONTROL, HIGH INTENSITY GAS DISCHARGE (XENON) HEADLIGHT, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__adjusting-motor-for-automatic-vertical-aim) .
13. Mounting bolts for headlight aim adjusting motor
14. Mounting bolts for igniter for gas discharge lamps -N195
15. Retaining clamps for headlight lens (6 x)

Removing

Note. Cover bumper with adhesive tape in area of headlight to prevent paint damage.

1. Remove Phillips-head screw -1- and remove trim molding - 2-.
2. Remove the four Phillips-head screws -3- and then remove headlight from vehicle by pulling slightly forward.
3. Disconnect electrical connection at headlight (for gas discharge lamps, two electrical connections).
4. Remove headlight from vehicle toward front.

Installing

1. Always align headlight according to contours of chassis (gap dimensions) and secure.
2. Complete installation in reverse order of removal.
3. Adjust headlight after installing. See «HEADLIGHTS, ADJUSTING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__headlights-adjusting) .

Repair kit for headlight housing, installing

Note. Headlight mounting tabs that have broken off can be replaced by installing the repair kit. Complete replacement of the headlight is therefore not necessary.

1. Remove remains of broken mounting tab -1- at the edge marked by the arrow. (Scheme 4)
2. Slide sheet metal nut -3- into mounting tab -2- from repair kit.
3. Secure mounting tab -2- using bolt -4- and shim washer at headlight housing from rear.

Scheme 1

Right arrow indicates separation edge on an intact mounting tab -5-.

Note. Mounting tabs of lower headlight mounting points can also be replaced individually.

Headlights, adjusting

Note. Current specified values and procedures for adjusting headlights can be found in the Repair Manual "Maintenance."

See HEADLIGHT AIM, ADJUSTING .

Adjustment screws at left headlight.

Arrangement at right headlight is mirror image of left headlight.

1. Adjustment screw for vertical adjustment
2. Adjustment screw for horizontal adjustment

1. Sealing rubber must be folded back and cap removed for access to adjustment screw -1-.
2. Adjust the appropriate adjustment screw using a socket wrench (6 mm) or a Phillips-head screwdriver.

Note. For vehicles with gas-discharge headlights, DTC memory must be checked and erased and basic setting must be performed prior to all manual adjustments of the adjustment screws. See AUTOMATIC VERTICAL HEADLIGHT AIM CONTROL, ON BOARD DIAGNOSTIC (OBD) .

1. Remove cover -2- from headlight housing.
2. Disconnect harness connector at low beam bulb -5-.
3. Disengage wire clamp -1- and remove bulb from housing.

1. Insert new bulb in housing, do not touch glass with bare hands.
2. Secure bulb using wire clamp.
3. Re-connect harness connector and close housing cover.

Replacing low beam bulb (gas discharge headlight)

1. Remove cover -2- from headlight housing.
2. Turn harness connector at gas discharge lamp -6- counter clockwise and remove.
3. Turn securing ring for gas discharge lamp -3- counter clockwise and remove.
4. Remove gas discharge lamp from housing.

1. Insert new gas discharge lamp in housing, do not touch glass with bare hands.
2. Secure gas discharge lamp using securing ring (turn clockwise).
3. Connect harness connector to gas discharge lamp and secure by turning clockwise.
4. Close housing lid -2- again.

Replacing bulb for high beam

Removing and installing is identical for both halogen and gas discharge headlights.

1. Remove cover -1- from headlight housing.
2. Disconnect harness connector at high beam bulb -6-.
3. Disengage wire clamp -1- and remove bulb from housing.

1. Insert new bulb in bulb holder, do not touch glass with bare hands.
2. Secure bulb using wire clamp.
3. Re-connect harness connector and close housing cover.

Replacing turn signal bulb/parking light

Removing and installing is identical for both halogen and gas discharge headlights.

1. Remove housing lid -2- (for access).
2. Turn bulb holder -3- counter clockwise and remove from housing.
3. Only remove electric harness connector if bulb holder -3- must be replaced.
4. Turn bulb -4- to remove from bulb holder.

1. Insert new bulb in bulb holder, do not touch glass with bare hands.
2. Install in reverse order of removal.

Adjusting motor for automatic vertical aim control, high intensity gas discharge (Xenon) headlight, removing and installing

Note. Always adjust headlights after adjusting motors are removed and installed or are replaced. See HEADLIGHTS, ADJUSTING .

Scheme 2

1. Remove headlight. See «HEADLIGHTS, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior).
2. Release retaining clamps and mounting units and remove rubber seal.
3. Remove headlight lens -1- by removing the six retaining clamps -15-. see scheme 10
4. Remove ball head of adjusting motor -12- adjustment axle from ball head mount. see scheme 10
5. Remove reflector -4-. Turn adjustment screws for vertical and horizontal adjustment enough that reflector can be removed. see scheme 10
6. Disconnect electrical harness connector at adjusting motor for automatic vertical headlight aim control -12- and remove both mounting screws -13-.
7. Remove adjusting motor for automatic vertical headlight aim control.

1. Complete installation in reverse order of removal.

Note. Perform basic setting. See AUTOMATIC VERTICAL HEADLIGHT AIM CONTROL, ON BOARD DIAGNOSTIC (OBD) .

Igniter for gas discharge lamps -N195-, removing and installation

1. Remove headlight. See «HEADLIGHTS, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior).
2. Release retaining clamps and mounting units and remove rubber seal
3. Remove headlight lens -1- by removing the six retaining clamps -15-. see scheme 11
4. Remove ball head of adjusting motor -12- adjustment axle from ball head mount. see scheme 11
5. Remove reflector -4-. Turn adjustment screws for vertical and horizontal adjustment enough that reflector can be removed.
6. Open housing cover -9- and remove connector at gas discharge lamp by turning counter clockwise. see scheme 11
7. Remove both mounting bolts -14- and remove the igniter for gas discharge lamps -11-.

1. Complete installation in reverse order of removal.
2. Adjust headlights after installing. See «HEADLIGHTS, ADJUSTING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__headlights-adjusting) .

1. Remove wheel housing liner, front left. See «FRONT WHEELHOUSING LINER, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/mirrors/#exterior-equipment__front-wheelhousing-liner-removing-and-installing).
2. Disconnect electrical harness connector from control module for high-intensity gas discharge lamp -J433- at headlight and remove cable securing mechanism (cable tie).
3. Remove both bolts -2- and remove control module -1- together with bracket. see scheme 12
4. Remove Phillips-head screws and remove control module -1- from bracket.

1. Complete installation in reverse order of removal.

1. Remove right headlight. See «Headlights, removing and installing»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
2. Remove Phillips-head screws -2- and remove control module -1- from bracket.
3. Bracket is secured to vehicle with three screws -3-.

1. Complete installation in reverse order of removal.

Fog lights, servicing

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

1. Remove air grill by pulling latch -3- downward using a flat head screwdriver.
2. Remove trim plate at fog light forward. Trim plate is secured with three latches -2-.
3. Trim plate is inserted in guides -3- at fog light.
4. Remove mounting screws -1-.
5. Remove fog light from bracket -2- by pulling forward slightly.
6. Disconnect electrical harness connector.

1. Complete installation in reverse order of removal.
2. Adjust fog light after installing. See «FOG LIGHTS, ADJUSTING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__fog-lights-adjusting) .

Fog lights, adjusting

Current fog light specifications and procedures

See HEADLIGHT AIM, ADJUSTING .

1. Adjust the appropriate adjustment screw using a socket wrench (6 mm) or a Phillips-head screwdriver.
2. Turn adjustment screw counter clockwise to lower beam height. Adjustment screw can be accessed via hole -1- in air grill. Horizontal adjustment is not possible.

1. Remove fog light. See «FOG LIGHTS, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
2. Turn cover -1- in direction of arrow and remove it.
3. Disconnect electrical harness connector at bulb.
4. Disengage wire clamp -1- and remove bulb for fog light (12V 55W H3) from housing.

1. Complete installation in reverse order of removal.
2. Adjust fog light after installing. See «FOG LIGHTS, ADJUSTING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior__fog-lights-adjusting) .

Tail lights, servicing

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

1. Open storage shelf in luggage compartment on relevant side.
2. Open tail light cover and remove.
3. Turn knob -2- at bulb carrier -1- counter clockwise (arrow) and remove.
4. Remove bulb holder -5- from tail light housing.

1. Remove bulbs from bulb sockets. Bulb for parking light - 12 V, 5W Bulb for turn signal - 12 V, 21 W Bulb for brake light/backup light - 12 V, 21/5 W

1. Install in reverse order of removal

1. Open storage shelf in luggage compartment on relevant side.
2. Open tail light cover and remove.
3. Remove luggage compartment trim on appropriate side. See «LUGGAGE COMPARTMENT TRIM, REMOVING»(/audi/a8/d3-2002-2005/remont/gauges-instrument-panels/#interior-trim__luggage-compartment-trim-removing) .
4. Turn knob -2- at bulb carrier -1- counter clockwise and remove.
5. Remove four hex nuts (4x, size in mm: 8) -3- and remove tail light -4- from vehicle on outside.

Note. When installing, be sure that seal between chassis and tail light housing seals properly. Install in reverse order of removal Before tightening mounting nuts, align tail light to contours of chassis (uniform gap dimensions).

1. Remove mounting bolts -1-.
2. Remove license plate light -2- from rear lid and replace faulty bulbs if necessary.

1. Install in reverse order of removal.

1. Open carpet trim in rear lid on appropriate side. NOTE: Illustration depicts the left tail light in the rear lid.
2. Turn individual bulb sockets counter clockwise and remove.

1. Bulb for backup light - 12 V, 21 W
2. Bulb for rear fog light - 12 V, 21 W
3. Bulb for auxiliary tail light - 12 V, 5 W

1. Install in reverse order of removal

Scheme 3

1. Open carpet trim in rear lid on appropriate side.
2. Turn individual bulb sockets -1-, -2-, -3- counter clockwise and remove. NOTE: Illustration depicts the left tail light in the rear lid. Rear lid lock must also be removed for right rear lid tail light. See «REAR LID LOCK CYLINDER, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/exterior-body-panels/#hood-lids__rear-lid-lock-cylinder-removing-and) .
3. Remove the four mounting nuts and remove housing.
4. Remove four mounting nuts (size in mm: 8) (arrows) and remove housing.

Note. When installing, be sure that the seal between chassis and tail light housing seals properly. Install in reverse order of removal Before tightening mounting nuts, align tail light to contours of chassis (uniform gap dimensions).

High-mount brake light

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

High mount brake light, removing and installing

High-mount brake light is secured to the rear parcel shelf.

1. Remove housing cover -1- by hand in direction of arrow. see scheme 24
2. Remove Phillips-head screws -2- and remove bulb carrier -3- in direction of arrow.

Bulbs -4- (4 x 12 V, 5W) are inserted in bulb carrier -3-. see scheme 24

The 2-pin harness connector for the brake light is located at the bulb carrier.

The lens housing -5- is secured to the rear parcel shelf by Phillips-head screws located on its underside and attached from within the luggage compartment.

Scheme 4

1. Install in reverse order of removal.

Side turn signal lights

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

1. Push side turn signal light against retaining tab (arrow) and carefully remove from fender opening.
2. Disconnect harness connector.

1. Connect harness connector.
2. Insert turn signal in fender.

Steering column switches, servicing

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

Scheme 5

Scheme 6

1. Disconnect battery ground (GND) strap.
2. Center steering wheel, i.e. wheels in straight-ahead position.
3. Move adjustable steering column all the out and set to lowest position. WARNING: Always follow airbag safety precautions when working on airbag system components. See appropriate Air Bag Restraint Systems article in Restraints.
4. Using T30 Torx bit -1-, unbolt airbag unit on both left and right sides of steering wheel (tightening torque: 7 Nm).
5. Carefully remove airbag unit.
6. Remove electrical connector from airbag unit and place airbag unit with impact padding facing up.
7. Remove both Phillips-head screws -8- and remove upper steering column switch trim -1-. see scheme 27
8. Disconnect electrical harness connector to spiral spring.
9. Remove hex nut -12- and remove steering wheel -11- from steering column (tightening torque: 50 Nm). see scheme 27 CAUTION: Be sure not to move the spiral spring out of the center position when removing the steering wheel.
10. Remove the three Phillips-head screws -5- and -6- as well as the Torx bolt (T25) -9- and then remove the lower steering column switch trim -7-. see scheme 27
11. Disconnect harness connector for electric steering column adjustment.
12. Loosen socket head bolt (5 mm) -2- at clamping sleeve enough that steering column switch can be moved slightly. see scheme 27
13. Carefully disconnect electrical harness connectors from steering column switch.
14. Remove steering column switch from steering column and set aside.

1. Secure steering column switch -2- to steering column using socket head screw -3-, maintaining a gap between steering wheel -1- of 3 mm (dimension -a-).
2. Remove steering wheel again and then install in reverse order of removal.

A - 14-pin harness connector

Note. The following list refers to see scheme 29.

1. Light switch, terminal 58
2. Switch, terminal 14
3. Light switch and headlight dimmer/flasher switch, terminal 30
4. Light switch and headlight dimmer/flasher switch, terminal 30
5. Park light switch, terminal PL
6. Park light switch, terminal P
7. Park light switch, terminal PR
8. Light switch, terminal 11 (daytime running lights/city driving lights)
9. Headlight dimmer/flasher switch, terminal 56 b
10. Headlight dimmer/flasher switch, terminal 56 a
11. Headlight dimmer/flasher switch, terminal 56
12. Light switch, terminal 1 (daytime running lights/city driving lights)
13. Light switch, terminal X
14. Light switch, terminal 3 (daytime running lights/city driving lights)

B - 6-pin harness connector

Note. The following list refers to see scheme 30.

1. On and resume, cruise control system
2. Resume, cruise control system
3. Store, cruise control system
4. Terminal 15, cruise control system
5. On, resume, and off (button), cruise control system
6. Input from control module, terminal 3, cruise control system

A - 6-pin harness connector

Note. The following list refers to see scheme 31.

1. On-board computer, reset
2. On-board computer, terminal 31
3. On-board computer rocker switch, right
4. On-board computer rocker switch, left
5. High intensity washer system
6. High intensity washer system

B - 13-pin harness connector

Note. The following list refers to see scheme 32.

1. Windshield wiper switch, terminal J
2. Windshield wiper switch, terminal 53 c
3. Emergency flasher switch, terminal R
4. Windshield wiper switch, terminal 53 b
5. Windshield wiper switch, terminal 53 a
6. Emergency flasher switch, terminal L
7. Emergency flasher switch, terminal 49 a
8. Windshield wiper switch, terminal 53 e
9. Windshield wiper switch, terminal 53

Lock cylinder and ignition/starter switch, servicing

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

1. Steering column switch, removing. See «Steering column switches, removing and installing»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .

For vehicles with automatic transmission, locking cable must be disengaged

1. Place selector lever in position "P."
2. Switch ignition key in position -B- to "Ignition ON." see scheme 33
3. Then lift interlock lever -1- slightly and pull locking cable -2- from ignition lock housing. NOTE: Spare key/valet key is required to remove lock cylinder. The following procedure is only possible for ignition keys with flat key grip, i.e. without illumination and without remote control.
4. Insert spare key/valet key in ignition lock and turn to position "Ignition ON", this will reveal the opening/hole in front of the lock next to the ignition key slot.
5. Insert length of steel wire -1- (approx. 1.5 mm) as far as it will go, as shown. Then pull lock cylinder out of steering lock housing -2- in direction of arrow -B-.

1. Insert spare key/valet key in the lock cylinder and turn to position "Ignition on." Then re-insert steel wire as far as it will go into the hole in front of lock.
2. Push lock cylinder together with ignition key all the way into steering lock housing.
3. Pull wire out and push in lock cylinder firmly until catch engages audibly.
4. Install steering column switches and steering wheel in reverse order of removal. See «Steering column switches, removing and installing»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .

1. Steering column switch, removing. See «Steering column switches, removing and installing»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior).
2. Disconnect harness connector at ignition/starter switch.
3. Remove sealing paint from two retaining screws -A-. see scheme 35
4. Slightly loosen retaining screws -A- and pull ignition/starter switch out of steering lock housing in direction of arrow.

Note. Ignition/starter switch and lock cylinder must both be in the "ignition on" position when installing. Tighten both retaining screws on the steering lock housing and seal with paint. Install in reverse order of removal.

Ignition/starter switch, terminal assignments

Note. The following list refers to see scheme 36.

1. 15 - Terminal 15
2. 30 - Terminal 30
3. 50 - Terminal 50
4. 50b - Terminal 50b
5. 75 - Terminal 75
6. 86s - Terminal 86s
7. P - Park position

General information

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

On Board Diagnostic (OBD), function

The control module for parking aid is controlled by an internal microprocessor with On Board Diagnostic (OBD) capability. If malfunctions occur in monitored sensors and components, Diagnostic Trouble Codes (DTC) will be stored in memory.

Before performing any troubleshooting or inspection, always begin by checking for DTCs using the On Board Diagnostic (OBD) program. DTCs stored in memory are retrieved/checked with either the VAG 1551 scan tool or VAS 5051 in mode "Self Diagnosis". See ACOUSTIC PARKING SYSTEM, ON BOARD DIAGNOSTIC (OBD) .

Where applicable, also use VAS 5051 tester in mode "Guided Fault Finding".

Parking assistance, component overview

Note. The following list refers to see scheme 37.

1. Sensor for parking assistance In front bumper Removing and installing. See «SENSOR FOR PARKING ASSISTANCE, FRONT, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
2. Warning buzzer for parking -H15- Below rear parcel shelf Removing and installing. See «LEFT FRONT LEVEL CONTROL SYSTEM SENSOR -G78-, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
3. Control module for parking aid -J446- Below left luggage compartment trim Removing and installing. See «CONTROL MODULE FOR PARKING AID -J446-, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
4. Sensor for parking assistance In rear bumper Removing and installing. See «SENSOR FOR PARKING ASSISTANCE, REAR, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
5. Front parking aid warning buzzer -H22- Below instrument panel, at right Removing and installing. See «FRONT PARKING AID WARNING BUZZER -H22-, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
6. Switch for parking assistance with integrated function lamp In center console Removing and installing. See «LEFT FRONT LEVEL CONTROL SYSTEM SENSOR -G78-, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .

1. Remove cover from storage compartment at left in the luggage compartment.
2. Remove frame for CD-changer if installed. See «CD CHANGER - "DELTA" RADIO, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/communication-devices/#radio-telephone-navigation-trip-computer) or «CD CHANGER - "CONCERT" RADIO, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/communication-devices/#radio-telephone-navigation-trip-computer) or «CD CHANGER - "SYMPHONY" RADIO, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/communication-devices/#radio-telephone-navigation-trip-computer) .
3. Remove both hex bolts -2- and remove the control module for parking aid -1- together with bracket -4-.
4. Disconnect electrical harness connectors.
5. Control module for parking aid -1- is secured to bracket -4- with two Phillips-head screws -3-.

1. Install in reverse order of removal.

1. The front parking aid warning buzzer -1- is located behind the instrument cluster.
2. Remove the instrument cluster. See «INSTRUMENT CLUSTER, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/gauges-instrument-panels/#instruments__instrument-cluster-removing-and-installing) .
3. Disconnect connector.
4. Remove mounting bolts -2-.
5. Remove warning buzzer.

1. Install in reverse order of removal.

1. The warning buzzer for parking -1- is located below the rear parcel shelf on the separation wall to the luggage compartment. Remove rear parcel shelf.
2. See «HAT SHELF, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/gauges-instrument-panels/#interior-trim__hat-shelf-removing-and-installing) .
3. Disconnect connector.
4. Remove both expanding rivets -2-.
5. Lift warning buzzer off of separation wall to luggage compartment.

1. Install in reverse order of removal.

1. Remove front bumper. See «FRONT BUMPER, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/exterior-body-panels/#bumper) .
2. Bumper carrier -3- must be removed before removing the two middle sensors for parking assistance -2-. See «FRONT BUMPER, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/exterior-body-panels/#bumper) .
3. Front bumper does not require further disassembly before removing the two external sensors for parking assistance.
4. Disconnect harness connector -1- at sensor.
5. Press both catches to side (arrows) and press sensor through from outside toward inside.

1. Install in reverse order of removal.

1. The sensors for parking assistance (arrows) are installed at rear bumper -1- as shown.
2. Remove rear bumper. See «REAR BUMPER, INSTALLING»(/audi/a8/d3-2002-2005/remont/exterior-body-panels/#bumper) .
3. Disconnect harness connector -1- at sensor.
4. Press both catches to side (arrow) and press sensor through from outside toward inside.

1. Install in reverse order of removal.

Automatic vertical headlight aim control, servicing

To minimize contact corrosion, only use approved fasteners (screws, nuts, bolts, washers etc.)

Where applicable, fasteners may have a special surface coating recognizable by a greenish color.

Coated fasteners must also be stored separately.

The automatic vertical headlight aim control system control module is controlled by an internal microprocessor with On Board Diagnostic (OBD) capability. If malfunctions occur in monitored sensors and components, Diagnostic Trouble Codes (DTC) will be stored in memory.

Before performing any troubleshooting or inspection, always begin by checking for DTCs using the On Board Diagnostic (OBD) program. DTCs stored in memory are retrieved/checked with either the VAG 1551 scan tool or VAS 5051 in mode "Self Diagnosis". See AUTOMATIC VERTICAL HEADLIGHT AIM CONTROL, ON BOARD DIAGNOSTIC (OBD) .

Where applicable, also use VAS 5051 tester in mode "Guided Fault Finding".

Automatic vertical headlight aim system, component overview

Note. The following list refers to see scheme 45.

1. Gas discharge (Xenon) headlights with headlight beam adjusting motors -V48-/-V49
2. Left front level control system sensor -G78- Located at left front control arm of axle Removing and installing. See «LEFT FRONT LEVEL CONTROL SYSTEM SENSOR -G78-, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
3. Left rear level control system sensor -G76- Located at rear axle control arm Removing and installing. See «LEFT REAR LEVEL CONTROL SYSTEM SENSOR -G76-, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .
4. Automatic vertical aim control system control module -J431- Behind right B-pillar trim Removing and installing. See «AUTOMATIC VERTICAL AIM CONTROL SYSTEM CONTROL MODULE -J431-, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/steering-column-switches/#lights-switches-exterior) .

1. Remove right B-pillar trim. See «B-PILLAR TRIM, REMOVING AND INSTALLING»(/audi/a8/d3-2002-2005/remont/gauges-instrument-panels/#interior-trim__b-pillar-trim-removing-and-installing) .
2. The automatic vertical aim control system control module -1- is installed behind the right B-pillar trim.
3. Disconnect connector.
4. Remove both hex nuts (size in mm: 10) -2- to remove the automatic vertical aim control system control module -1-.

1. Install in reverse order of removal.

High intensity gas discharge (Xenon) headlights, removing and installing

Headlights, removing and installing. See Headlights, removing and installing .

Headlight beam adjusting motors -V48-/-V49-, removing and installing

Headlight beam adjusting motors (for gas discharge headlights), removing and installing. See ADJUSTING MOTOR FOR AUTOMATIC VERTICAL AIM CONTROL, HIGH INTENSITY GAS DISCHARGE (XENON) HEADLIGHT, REMOVING AND INSTALLING .

1. The front level control system sensor -1- is bolted to a retaining plate on the long member with two socket head bolts -5- (5mm).
2. Disconnect connector.
3. To remove sensor from retaining plate and linkage, remove hex nut -3- and both socket head bolts -2- (3mm) at level sensor.
4. Open clip -1- at control arm by lightly pressing together the catches. Then remove linkage -2-.

1. Install in reverse order of removal.

1. The level sensor is secured at the left rear control arm and bolted to a retaining plate with two hex nuts -4- at the subframe.
2. Disconnect connector.
3. To remove sensor from retaining plate and linkage, remove hex nut -3- and both socket head bolts -2- (3mm) at level sensor -1-.
4. Remove hex bolt -5- at control arm to remove linkage -4

1. Install in reverse order of removal.

See also:
• EXAMPLE: SWITCH OFF EMERGENCY (BACK-UP) BATTERY
• EXAMPLE: SWITCH ON EMERGENCY (BACK-UP) BATTERY
• HEADLIGHT AIM, ADJUSTING
• AUTOMATIC VERTICAL HEADLIGHT AIM CONTROL, ON BOARD DIAGNOSTIC (OBD)
• FRONT WHEELHOUSING LINER, REMOVING AND INSTALLING
• LUGGAGE COMPARTMENT TRIM, REMOVING
• REAR LID LOCK CYLINDER, REMOVING AND INSTALLING
• CD CHANGER - "DELTA" RADIO, REMOVING AND INSTALLING
• INSTRUMENT CLUSTER, REMOVING AND INSTALLING
• HAT SHELF, REMOVING AND INSTALLING
• FRONT BUMPER, REMOVING AND INSTALLING
• B-PILLAR TRIM, REMOVING AND INSTALLING
• REPLACING TURN SIGNAL BULB/PARKING LIGHT
• HEADLIGHT BULBS, REPLACING
• REPLACING BULB FOR HIGH BEAM
• REPLACING LOW BEAM BULB (GAS DISCHARGE HEADLIGHT)
• IGNITER FOR GAS DISCHARGE LAMPS -N195-, REMOVING AND INSTALLATION
• ADJUSTING MOTOR FOR AUTOMATIC VERTICAL AIM CONTROL, HIGH INTENSITY GAS DISCHARGE (XENON) HEADLIGHT, REMOVING AND INSTALLING
• HEADLIGHTS, ADJUSTING
• FOG LIGHTS, ADJUSTING