2016 AUDI S3 wiring

e-tron
e-tron Plug-in hybrid drive
Introduction
A pp lies to veh icles: w ith plug -in hybrid drive
General information
The plug- in hybrid drive is a drive concept that al­
lows yo u to choose between driving w ith the elec­
tr ic moto r, with the gaso lin e engine o r using a
comb inat io n of both.
All work done on the high-voltage system must
only be performed by certified high-voltage tech­ n icians at autho rized Aud i dea le rs or authorized
Aud i Serv ice Facilities in accordance with Audi
gu idelines.
The high-voltage system is composed of the fol­ low ing h igh-vo ltage components: the high-volt­
age battery, the powe r electron ics, the e lectr ic
motor, the high-voltage A/C compressor, the
high-vo ltage heater, the charging system and
charging port as well as the orange high-voltage
wiring.
The pedal referred to in this sect ion of the Own­
er's Manua l is the equivalent of the acce lerator
pedal (gas pedal) in a standard veh icle.
High-voltage battery
The high-voltage battery is located under the
rear bench seat in the veh icle and does not re­
qu ire any maintenance from the driver. Addition ­
a l information about the high-voltage battery can
be found under
Q page 112 .
A WARNING
The voltage in the high-vo ltage system is life­
threatening. Touching a damaged high-volt­
age component can result in a fatal e lectr ic
shock. The components in the high-voltage
system are ma rked with a warning label which
wa rns against the h igh-vo ltage.
- The voltage level in the high-voltage system
is still dangerous and potentially life-threat­
ening when the ignition is switched off.
- Never perform work on orange high-voltage
cables or on high-voltage components. Only
98
authorized repair facilities that are certified
may perform work on the high-voltage sys­
tem.
- Never damage, alter or remove the orange
high-voltage cable or disconnect it from the
high-voltage system.
- Never perform any work using c utting, shap­
ing or sharp-edged too ls or heat sources
near the h igh-vo ltage system and high-volt­
age cables.
- Aud i regulat ions must be followed during
all work performed on the high-voltage sys­
tem and h igh-vo ltage components.
- When working on the h igh-vo ltage system
and h igh-voltage compone nts, make sure
the remote cont rol key is kept far enough
away from the vehicle so that there is no
ris k of the ignit ion be ing inadve rten tly
sw itched on.
- Gases that escape from the high-vol tage
b attery can be poisono us or flammable.
- Damage to the high-voltage battery could
cause the h igh-vo ltage battery to leak im­
media tely or in the fu ture, and poisonous or
flammab le gases cou ld escape . Do not in ­
ha le the gases!
- Do not expose yourse lf to any leaking fluids
and do not come into contact with them .
- The high-volt age battery e lectroly te fl uid is
caustic. I f electrolyte fluid comes into con ­
tact with the sk in, f lush the affected area
for at least 15 minutes with clean water.
Then wash the affected area with soap.
Have the affected area examined by a med i­
cal professional.
- In the event of a technical emergency, in­
form the responders that the vehicle is
equ ipped with a high-voltage battery.
A WARNING
Never leave the vehicle unattended when in
drive ready mode
~ page 100 with a gear en­
gaged . The veh icle can start moving ("creep­
ing") even if the gaso line engine is switched
off, since the e lectr ic motor is still operating.
This may cause collis ions and severe or fatal
-

,....,
N
0 > co ,...., Trailer mode Driving with a trailer
General information
Your Audi was designed primarily for passenger
transportation .
If you plan to tow a trailer, please remember that
the additional load will affect durability, econo­
my and performance.
T railer towing not only places more stress on the
vehicle, it also calls for more concentration from
the driver.
For this reason, always follow the operating and
driving instructions provided and use common
sense.
Technical requirements
Trailer hitch
Use a weight-carrying hitch conforming to the
gross trailer weight. The hitch must be suitable
for your vehicle and trailer and must be mounted
securely on the vehicle's chassis at a technically
sound
location . Use only a trailer hitch with a re­
movable ball mount . Always check with the trail­
er hitch manufacturer to make sure that you are
using the correct hitch.
Do not use a bumper hitch.
The hitch must be installed in such a way that it
does not interfere with the impact -absorbing
bumper system . No modifications should be
made to the vehicle exhaust and brake systems .
From time to time, check that all hitch mounting
bo lts remain securely fastened.
When you are not towing a trailer,
remove the
tra iler hitch ball mount . This prevents the hitch
from causing damage should your vehicle be
struck from beh ind
~ ,&. .
Trailer brakes
If your trailer is equipped with a braking system,
check to be sure that it conforms to all regula­
tions .
Trailer mode
The trailer hydraulic brake system must not be
directly connected to the vehicle's hydraulic
brake system.
Safety chains
Always use safety chains between your vehicle
and the trailer.
Trailer lights
T ra iler lights must meet all regulations . Be sure
to check with your Aud i dea ler for correct wiring,
switches and relays .
Mirrors
If you are unable to see the traffic behind you us­
ing the regular outside mirrors, then you
must in­
stall extended mirrors . It is important that you
always have clear vision to the rear.
,8. WARNING
After removing the trailer hitch, do not store
it in your vehicle. In case of sudden braking,
the hitch could fly forward and injure you or
your passengers.
Operating instructions
Maximum trailer weight
A trailer for your vehicle is limited to a typical
class 1 or class 2 trailer.
Trailer load distribution Be sure the load in the trailer is held securely in
place to prevent it from shifting forward, back­
ward or sideways.
Never allow a passenger to ride in a trailer~.&.
in Driving instructions on page 128.
Engine cooling system
Towing a trailer makes the engine work harder. It
is important that the cooling system's perform ­
ance is up to the additional load. Make sure that
the cooling system has enough fluid.
Tire pressure
When towing a trailer, inflate the tires of your
vehicle to the cold tire pressure listed under "Full ..,.
127

,....,
N
0 > co ,...., A WARNING
A child in a rearward-facing child seat instal­
led on the front passenger seat will be seri­
ously injured and can be killed if the front air­
bag inflates - even with an Advanced Airbag
System.
-Although the Advanced Airbag System in
your vehicle is designed to turn off the front
airbag when a rearward-facing child re­
straint has been installed on the front pas­
senger seat, nobody can absolutely guaran­
tee that deployment is impossible in all con­ ceivable situations that may happen during
the useful life of your vehicle.
- The inflating airbag will hit the child seat or
infant carrier with great force and will
smash the child seat and child against the backrest, center armrest, door, or roof.
-Always install rearward-facing child re­ straints on the rear seat.
- If you must install a rearward facing child
seat on the front passenger seat because of
exceptional circumstances and the
PASSEN­
GER AIR BAG OFF light does not come on
and stay on, immediately install the rear­
facing child seat in a rear seating position and have the airbag system inspected by
your Audi dealer.
A WARNING
If, in exceptional circumstances, you must in­
stall a forward-facing child restraint on the
front passenger's seat:
- Always make sure the forward-facing seat
has been designed and certified by its man­
ufacturer for use on a front seat with a pas­
senger front and side airbag.
- Never put the forward-facing child restraint
up against or very near the instrument pan­
el.
- Always move the passenger seat into its
rearmost position in the seat's fore and aft
adjustment range, as far away from the air­
bag as possible, before installing the for­
ward-facing child restraint. The backrest must be adjusted to an upright position.
Airbag system
-Always make sure that there is nothing on
the front passenger seat that will cause the
capacitive passenger detection system in
the seat to signal to the Airbag System that
the seat is occupied by a person when it is
not, or to signal that it is occupied by some­
one who is heavier than the person actually
sitting on the seat. The presence of addi­
tional objects could cause the passenger
front airbag to be turned on when it should
be off, or could cause the airbag to work in a
way that is different from the way it would have worked without the object on the seat.
- Make sure that the
PASSENGER AIR BAG
OFF light comes on and stays on all the time
whenever the ignition is switched on.
Advanced Airbag System components
The front passenger seat in your vehicle has a lot
of very important parts of the Advanced Airbag
System in it . These parts include the capacitive
passenger detection system, wiring, brackets,
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 malfunction in the one of the system
components is detected
¢ page 196. Because
the front passenger seat contains important
parts of the Advanced Airbag System, you must
take care to prevent it from being damaged.
Damage to the seat may prevent the Advanced
Airbag System for the front passenger seat from
doing its job in a crash.
The front Advanced Airbag System consists
of the following:
-Crash sensors in the front of the vehicle that
measure vehicle acceleration/deceleration to
provide information to the Advanced Airbag
System about the severity of the crash.
- An electronic control unit, with integrated
crash sensors for front and side impacts. The
control unit "decides" whether to fire the front
airbags based on the information received from
the crash sensors. The control unit also "de­
cides" whether the safety belt pretensioners
should be activated.
111-
191

Airbag system
Monitoring the
Advanced Airbag System
:~ (USA models ) / !f (Canad a model s)
Airbag monitoring indicator light
Two separate indicators monitor the function of
the Advanced Airbag System: the airbag moni ­
toring indicator light and the
PASSENGER AIR
BAG OFF
light.
The Advanced Airbag System as we ll as the side
airbags and side c urtain airbags with ejection
mitigation features (including the e lectroni c con­
trol unit, sensors and system wiring) are all
monitored continuously to make sure that they
are funct ioning prope rly whenever the ignition is
on . Eve ry t ime yo u tur n on the igni tion, the air­
bag sys tem ind icator light
II (USA models)/ m
(Ca nada models) will come on for a few seconds
(func tion chec k).
The system must be inspected when the
indicator light
ffl (USA models) / fll
(Canada model s):
- does not come on w hen the ignition is switched
on,
- does not go out a few seconds after you have
switched on the ign ition, or
- comes on wh ile driving .
I f an a irbag system ma lf u nction is detected, the
indicator light wi ll first sta rt flash ing to catch the
d river's atte ntion and then stay on co ntin uous ly
to serve as a constant reminder to have the sys­
tem inspected immed iate ly.
I f a malfunction occurs that turns the front air­
bag on the passenge r side off, the
PASSENGER
AIR BAG OFF
ligh t will come on and stay on
wheneve r th e ignition is on .
.&_ WARNING
An airbag system that is not f unct io ning prop­
er ly cannot provide supplemental protection
in a frontal crash.
- If the airbag indicato r light ¢
page 21
comes when the vehicle is being used, have
t h e system inspected immediate ly by your
autho rized Aud i dealer . It is possible that
196
the airbag will inflate when it is not sup­
posed to, or will not inflate when it should.
PASSENGER AIR BAG OFF light
Fig . 166 Center co nsole: passenger a irbag off warning
light
The PAS SENG ER AI R BAG OFF light is located in
the center of the instrument panel ¢
fig. 166.
The PASSENGER AIR BAG OFF light will come on
and stay on to tell you when the front Advanced
Airbag on the passenger side has been turned off by the electronic contro l unit . If the b ulb for the
PASSENGER AIR BAG OFF light b urns out, the
a irbag indicato r light
II (USA models)/ m
(Canada mode ls) wi ll come on to signa l a mal­
funct io n in t he Advanced Ai rbag System. A l­
though the burned -out bulb wi ll not change the
way the front passenger's frontal airbag works, it
will no longer be possible to use the
PASSENGER
AIR BAG OFF
light to make sure that the airbag
on/off status is correct for the occupant on the
front passenger seat . Have the airbag system in ­
spected immed iately by yo ur authorized Audi
dealer .
The PASSENGER AIR BAG OFF light will blink
for about 5 seconds when:
-the ignition is sw itched on and
- the capacitive passenger detection system,
which switches the front seat passenger's fron ­
tal Advanced Airbag on and off, detects a
change in the status of the front passenger
seat.
As soon as the
PASSENGER AIR BAG OFF light
stops blinking, always make sure that the airbag
status (on or off) as shown by the
PASSENGER
AIR BAG OFF
light is proper for the age, size and IJJ,,