Audi TT Roadster 2018 Owner's Manual page 203

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adjustment range, as far away from the air-
bag as possib le, before insta lling the for-
ward-facing child restra int.
- Always make sure that the safety belt upper
anchorage is beh ind the child restraint and
not next to or in front of the chi ld restraint
so that the safety belt will be properly pos i-
t ioned.
- Always make sure that there is nothing on
the front passenger seat that will cause the
capacit ive passenger detection system in
the seat to signa l to the Airbag System that
the seat is occupied by a person w hen it is
not, or to sign al t ha t it is occ upied by some-
one who is heavier t han t he pe rson actua lly
sitting on the seat . The presence of addi-
tiona l objects could cause the passenge r
front airbag to be turned on when it shou ld
be off, or could cause the airbag to work in a
way that is different from the way it would
have worked wit ho ut the object on t he seat .
- Make sure that the PASSENGER AIR BAG
OFF~; light comes on and stays on all the
t ime w henever the ignition is sw itc hed on.
Advanced Airbag System components
The front passenger seat in you r vehicle has a lot
of very impo rtant parts of t he Advanced Airbag
Syst em in it. These pa rts include the capaci tive
passenger detection system, w iring, brac kets,
and more. The control unit monitors the system
on the front passenger seat when the ignition is
switched on and turns the airbag indicator light
on when a malfunct ion in the one of the system
components is detected ¢ page 206. Because
the front passenger seat contains important
pa rts of the Advanced Airbag System, you must
take care to prevent it from be ing damaged .
Damage to t he seat may preve nt t he Advanced
Airbag System fo r the fron t passenger seat from
doi ng its job in a crash.
The front Advanced Airbag System consists
of the following :
- Cras h sensors in the front of t he vehicle t hat
measure vehicle accelerat ion/dece lerat ion to
Airbag sys t e m
prov ide information to the Advanced Airbag
System about the severity of the cras h.
- An electronic contro l uni t , with integrated
cras h sensors for front and side impacts . The
control unit "decides" whether to fire the front
airbags based on the information rece ived from
the crash sensors . The control unit also "de-
cides" whether the safety belt pretensioners
should be activated.
- An Advanced Airbag w it h gas generator for the
driver inside the steering wheel hub .
- An Advanced Airbag w ith gas generator inside
the instrument panel for the front passenger.
- A capacit ive passenger detection system under -
neat h the front passenger seat cover. This sys-
tem meas ures the e lectr ical capacitance of the
person in the seat. The informat ion registered
is sent cont inuously to the elect ronic contro l
un it to reg ulate dep loymen t of the front Ad-
vance d Airbag on the passenger side.
- An airbag monitor ing system and ind icator
ligh t
El
in the inst rument cluste r.
- A sensor in each front seat registe rs the d is-
t ance betwee n the respective seat and the
st eer ing whee l or inst rument pa nel. The infor-
mation registered is sent con ti nuous ly to the
elect ronic contro l unit to regu late dep loyment
of the front Advanced Airbags .
- The PASSENGER AIR BAG OFF~ ; light comes
on and stays on in the headliner¢
page 206,
fig. 164 and tells you when the front Advanced
Airbag on the passenger side has been turned
off.
- A sensor in the safety be lt latch for the driver
and for the front seat passenger that senses
whether that safety be lt is latched or not and
transmits this information to the e lectronic
control un it .
A
WARNING
-
Damage to the front passenge r seat can pre-
vent the front airbag from wo rking prope rly.
- Imp roper repair or d isassembly of the front
passenger and driver seat will preve nt the
Advanced Airbag Syst em from funct io ning
properly .
201