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– Align headlight adjustment unit parallel to vehicle and position
it centrally in front of headlight at a distance of 30 to 70 cm
-distance a-; deviation from centre of light emission surface
must not exceed 3 cm -distance b-.
– Adjust dip setting of headlight adjustment unit so that beam of
headlight falls on test screen according to following parameter:
Horizontal light-dark border should coincide with setting line
-1-.
– Read off dip setting of headlight adjuster.
– Repeat procedure on opposite side.
– Compare dip setting on left and right sides.
– If they deviate 2.0% or more from one another: Check and
adjust headlight setting according to procedure specified in
Workshop Manual ⇒ Electrical system; Rep. gr. 94 ; Head‐
lights; Adjusting headlights .
3.31 Headlights and reversing lights, side
lights, number plate lights, turn signals,
hazard warning lights: checking opera‐
tion
WARNING
Risk of injury as engine of high-voltage vehicle can start un‐
expectedly!
♦ Observe warnings for high-voltage system:
♦ For work that must be performed with the ignition switched
on ⇒ page 11 .
Check the lights/signals listed below from the outside to ensure
they function properly.
Procedure:
– Activate side lights and check that the following exterior lights
function properly:
♦ Side lights (front)
♦ Side lights (rear)
♦ If applicable: additional tail light under open rear lid
– Switch on ignition.
– Check operation of daytime running lights (front).
– Operate right turn signal, left turn signal and hazard warning
lights, and check that corresponding turn signal lamps at front,
rear and side function properly.
Audi A8 2010 ➤
Maintenance - Edition 11.2014
62 3. Maintenance
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