light AUDI A4 1999 B5 / 1.G Three Way Halogen Headlights Workshop Manual

94-1


Headlights, servicing

Three-way halogen headlights, overview


CAUTION!

Disconnect the battery Ground (GND) strap
before working on the electrical system.

Notes:

Before disconnecting the battery, determine the
correct coding for the anti-theft radio.
After reconnecting the battery, check and
activate the vehicle's electrical equipment
(radio, clock, comfort and convenience
features, etc.) as outlined in this Repair Manual
or the Owner's Manual.
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94-2


Notes:
Repair Manual, Maintenance

Some procedures could affect the headlight
beam adjustment, requiring that it be reset
Page 94
-8 .
Adjusting spray for headlights washer nozzles
Page 92
-17
.
1 -
Diffuser lens
2 -
Retaining clamps (7x)
To remove, carefully pry out using
screwdriver To install, press in by hand
3 -
Headlight frame Locked within headlight housing
4 -
Seal for lens Always replace
5 -
Reflector To remove, clip out of retaining ringsTo install, carefully press into retaining
rings Do not touch inside of reflector
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94-3


6 -
High beam bulb
12 V, 55 W (H7)
7 -
Front fog light bulb 12 V, 55 W (H1)
8 -
Low beam bulb 12 V, 55 W (H7)
9 -
Wiring with harness connector
10 -
Trim strip Clipped onto headlight housing
11 -
Fixed bearing for reflector Only on vehicles without headlight
automatic vertical aim control
12 -
Cover Press lock down and remove toward rear
13 -
Headlight housing
14 -
Bulb socket
15 -
Turn signal bulb 12 V, 21 W, orange
16 -
Turn signal lens Removing and installing Page 94
-21
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94-4

High intensity gas discharge (Xenon)
headlights, overview


CAUTION!

Disconnect the battery Ground (GND) strap
before working on the electrical system.

Notes:

Before disconnecting the battery, determine the
correct coding for the anti-theft radio.
After reconnecting the battery, check and
activate the vehicle's electrical equipment
(radio, clock, comfort and convenience
features, etc.) as outlined in this Repair Manual
or the Owner's Manual.
Some procedures could affect the headlight
beam adjustment, requiring that it be reset
Page 94
-8 .

Repair Manual, Maintenance


Adjusting spray for headlights washer nozzles
Page 92
-17
.
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94-5


1 -
Housing cover
2 -
Xenon bulb
12 V, 35 WReplacing Page 94
-12
3 -
Headlight housing
4 -
High beam bulb
12 V, 55 W (H7)Replacing Page 94
-14
5 -
Headlight beam adjusting motor -V48-/-
V49-
Removing and installing Page 94
-11
6 -
Igniter for gas discharge lamps -N195-
(Xenon)
Removing and installing Page 94
-15
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94-6

Headlights, removing and installing


Note:
Protect bumper using cloth backed tape in
headlight area to prevent damage to paint.

Removing

- Remove turn signal Page 94
-21
.

- Remove bolt (arrow) 6 Nm (53 in. lb).

- Remove two bolts (arrows) 6 Nm (53 in. lb).
- Disconnect headlight harness connector.
- Disconnect headlight beam adjusting motor harness connector.
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94-7


Installing - Pull headlight out from peg mount at side (approx. 15 mm), lift slightly
and then lift out carefully toward front, rotating if necessary.
- Install in reverse order of removal.
- Always align headlights to adjacent body panels (gap clearances)
before securing.
- Adjust headlights after assembly Page 94
-8 .
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94-8

Headlights, adjusting

Instructions and specifications on headlight
adjustment:

Repair Manual, Maintenance


Notes:

For vehicles with high intensity gas discharge
(Xenon) headlights, the Diagnostic Trouble
Code (DTC) memory must be checked and
erased before each manual adjustment of the
adjusting screws. The basic adjustment is then
carried out. Headlight automatic vertical aim
control On board Diagnostic (OBD), initiating,
Page 01
-217
.

The aimer must be used for the adjustment.

Repair Manual, Maintenance

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94-9


The illustration shows the left headlight: - Change headlight beam adjustment by turning adjusting screws -A-
and/or -B- (use Phillips-head screwdriver or hex-wrench).
Bosch
A - Lateral adjustment
B - Height adjustment

Note:
The lateral adjustment must be set to "0." - Use screwdriver for lateral adjustment -1-.
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94-11

Headlight beam adjusting motor (high
intensity gas discharge -Xenon-
headlights), removing and installing


Note:
Always adjust headlights after headlight beam
adjusting motors are removed, installed or
replaced Page 94
-8 .

Removing

- For right headlight, remove back portion of
intake air duct.

- Remove cover from headlight housing.

Installing - Release headlight beam adjusting motor -1- on right headlight by
rotating clockwise and on left headlight by rotating counterclockwise.
- Release ball joint from its socket by pushing laterally to left on right
headlight and push to right on left headlight.
- Disconnect harness connector -2-.
- Install in reverse order of removal.
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