Technical data

A7_Fas09. 65 09.03.12 09:51A7_S7_Fas18_2012_03.indd 65 23.04.12 13:13
S_64_A7_Fas09_B 64 21.02.12 21:44
LED headlights
The Audi R8 was setting standards as early as
2008 as the first sports car with full-LED head-
lights. Now this special lighting is also available
for the Audi A7 Sportback and S7 Sportback
on request. Full-LED headlights not only require
less energy than standard lighting systems,
but also provide a light the same colour as
daylight which is perceived to be much more
pleasant. The dipped beam consists of a dis-
tinctive line of three individual light modules.
This makes the Audi A7 Sportback unmistake-
able, even at night. The high beam, daytime
running lights and indicators also feature LED
technology. The use of modern LEDs for all
functions makes completely new lighting
effects possible. The Audi A7 Sportback and
S7 Sportback, therefore, have the right light
for every situation: they have a motorway light
which automatically almost doubles the range
of the light cone on the driver’s side (from
approx. 70 m at dipped beam to 120 m with
motorway light). In addition, your vehicle has a
daytime running light/indicator light unit as well
as an all-weather light which makes conventional
front fog lights superfluous. The individual LED
modules are skilfully controlled to redistribute
the light, reducing glare from rain or fog.
Daytime running lights Dipped beam Indicator
Subject: Light
Conventional light bulbs reach temperatures of up to 300 °C. Due to their
sophisticated technology, LED lights are somewhat more sensitive and should not
get hotter than 150 °C. Because of the engine, the temperature of the area around
the headlights is already around 120 °C. In theory, then, LED headlights would need
an additional cooling system to be able to work. However, the Audi engineers did not
want to spoil the good low-energy credentials of the LED headlights, so they quickly
developed something completely new: a fan which directs heat away from the LED
chips. The special feature of this fan is its additional benefit. The high operating
temperature of standard bulbs means that they can defrost the headlights, which
LEDs cannot. The newly developed fan directs warm air from the LED chips directly
to the headlight lens and thus defrosts them and prevents them from misting up.
<300 °C
64
Less energy, more light:
the Audi A7 Sportback and S7 Sportback
with full-LED headlights.
A7_S7_Fas18_2012_03.indd 64 24.04.12 13:38