2016 AUDI A3 engine coolant

Instruments and indicator lights
(+S °C), a snowflake symbol appears in front of
the temperature display.
If your vehicle is stationary or if you are driving at
very low speeds, the temperature displayed may
be slightly higher than the actual temperature
outside due to the heat radiating from the en­
gine.
A WARNING
Do not assume the roads are free of ice based
on the outside temperature display . Be aware
that there may be ice on roads even when the
outside temperature is around 41 °F (+S
0
()
and that ice can increase the risk of accidents .
@ Tips
You can change the measurement units, for
example for temperature or speed, in the
MMI.
Fuel level
The display @ q page 10, fig. 3 only works when
the ignition is switched on. When the display has reached the reserve mark, the bottom LED will
turn red and the
tj] indicator light turns on
q page 24. Th e bottom LED blinks red when
the fuel level is very low.
The on-board computer shows the range based
on the fuel level~
page 29, On-board comput­
er display.
For the tank capacity in your vehicle , refer to the
Technical Data
qpoge 303.
(D Note
Never drive until the tank is completely emp­
ty . The irregular supply of fuel that results
from that can cause engine misfires . Uncom­
busted fuel will then enter the exhaust sys­
tem. This can cause overheating and damage
to the catalytic converter.
Coolant temperature indicator
In vehicles without a coolant temperature indica­
t or, an indicator light . will turn on when the
12
coolant temperature is too high q page 20. Re­
fer to
q 0 .
The coolant temperature indicator @ q page 10,
fig. 3
only works when the ignition is switched
on. To prevent engine damage, please observe
the following notes about the temperature rang­
es .
Cold range
If only the LEDs at the bottom of the gauge turn
on, the engine has not reached operating tem­
perature yet. Avoid high engine speeds, full ac­
ce lerating and heavy engine loads.
Normal range
The engine has reached its operating tempera­
ture once the LEDs up to the center of the gauge
turn on under normal driving conditions. The
LEDs higher up may turn on if the engine is under
heavy load or the outside temperature is high.
T his is no cause for concern as long as the. in­
dicator light in the instrument cluster does not
turn on.
Hot range
If the LEDs in the upper area of the display and
the . indicator light in the instrument cluster
display turn on, the coolant temperature is too
high
q page 20 .
A WARNING
-Never open the hood if you can see or hear
steam or coolant escaping from the engine
compartment . This increases the risk of
burns . Wait until you no longer see or hear
steam or coolant escaping.
- The engine compartment in any vehicle can
be a dangerous area. Stop the engine and
allow it to cool before working in the engine
compartment. Always follow the informa­
tion found in¢
page 236, Working in the
engine comportment.
([) Note
-In vehicles with a boost pressure indicator*,
this indicator replaces the temperature dis­
play. To promote a long engine service life,
avoiding high engine speeds, full

.... N
0 > CX)
.... I.Cl U"I
.... I.Cl ....
acceleration and heavy engine loads during
approximately the first 15 minutes when
the engine is cold is recommended. The
amount of time until the engine is warm de­
pends on the outside temperature. Check
the engine oil temperature* if necessary
¢ page 32.
-Auxiliary headlights and other accessories in
front of the cooling-air intake impair the
cooling effect of the coolant . This increases
the risk of the engine overheating during
high outside temperatures and heavy en­
gine load.
- The front spoiler also he lps to distr ibute
cooling air correct ly wh ile driving. If the
spo iler is damaged, the cooling effect will
be impaired and the risk of the engine over ­
heating will increase. See an authorized
Audi dealer or authorized Audi Service Fa­
cility for assistance.
@ Tips
Diesel engines: due to the high efficiency of
these engines, the engine may not always
reach operating temperature in cold outside
temperatures. This is normal and not a cause
for concern.
Indicator lights
Description
Fig. 6 Instrument cl uster : example of a d isplay in veh icles
wit h a mo nochrome d isplay
@
®
©
Indicator light
Message
Status line:
- • Im, Central indicator light or addition­
al displays for active systems such as
Instruments and indicator lights
-- (USA models)/ . (Canada models)
electromechanical parking brake
-18;(1 )~1~ (USA mode ls)/ . (Canada models)
cruise control system*
-•III Act ive lane assist*
The
central ind icator light© • or h also
turns on with some indicator lights @.
If the central indicator light © turns on, check
the additional information in the instrument
cluster display @ and @.
In addition to the indicator lights in the display,
there are addit ional ind icators in the tachometer .
They blink or turn on to indicate functions or mal­
functions . Messages @ may also appear briefly
with some indicator lights. A warning tone
sounds at the same time.
If there is more than one malfunction, the indica ­
tor lights will turn on one after the other for a short time.
The ind icator lights and messages in the display
can be covered by other d isplays . In cases where
the indicator light @ is hidden, the central ind i­
cator light © will remain visib le until the mal­
function is corrected.
The messages can be displayed aga in in the driv­
er information system
¢ page 29, Operation .
Overview
Some indicator lights turn on briefly as a funct ion
check when you sw itch the ignition on. These sys­
tems are marked with a./ in the following tab les.
If one of these ind icator lights does not turn on,
there is a malfunction in that system .
Your vehicle has either a monochrome display or
a multicolored disp lay, depending on vehicle
equipment. In a monochrome display, the indica­
tor lights @only appear in white ¢
page 13,
fig. 6. The central indicator light@• / rAi also
appears to indicate the priority of these indicator
lights. Refer to the explanations for red or yellow
indicator lights .
Examples of indicator lights in a monochrome
display :
13

Instruments and indicator lights
If the indicator light blinks and the message ap­
pears, there is not enough braking power to se­
cure the vehicle. The brakes have overheated. The
veh icle could roll away even on a small incline.
11J;J:t :);J;1:0 (USA models) / ¢@'A Parking b rake is applied
If this message appears, press the brake pedal
first and then release the parking brake if neces­
sary .
{D) Tips
For additional information on the parking
brake, refer to¢
page 85.
-L Cooling system
• Switch off engine and check coolant level!
• Park vehicle and check coolant level!
The coolant level is too low.
Do not continue driving and switch the engine
off.
Plug-in hybrid drive *: refer to
c!;> page 108.
Check the coolant leve l¢ page 244.
- If the coolant level is too low, add coolant
¢
page 245. Only cont inue driving once the in­
dicator light turns off.
• Coolant temperature too high! Let engine
run with vehicle stationary
Let the engine run at idle for a few minutes to
coo l off, until the indicator light turns off.
- If the indicator light does not turn off, do not
continue driving the vehicle. See an authorized
Audi dealer or authorized A udi Service Faci lity
for assistance.
A WARNING
- Never open the hood if you can see or hear
steam or coolant escaping from the engine
compartment. This inc reases the risk of
burns. Wait until you no longer see or hea r
steam or coolant escaping.
- The engine compartment in any veh icle can
be a dangerous area. Stop the engine and
20
allow it to cool befo re working in the engine
compartment. Always follow the informa­
tion found in ¢
page 236, Working in the
engine compartment .
Cl) Note
Do not continue driving if the . indicator
light turns on -this increases the risk of en­
gine damage.
"l=7: Engine oil pressure
• Switch off engine! Oil pressure too low
Stop the engine and do not continue driving.
Check the eng ine oil level¢
page 242.
-If the eng ine oi l level is too low, add engine oil
¢
page 240. Only continue driving once the in­
dicator light turns off .
- If the engine oi l level is correct and the indica­
tor ligh t still turns on, turn the engine off and
do not cont inue driving. See an authorized Aud i
dea ler or authorized Audi Service Facility for as­
sistance .
(D Tips
The oil pressure warning is not an oil level in­
dicator. Always check the oil level regularly.
D Alternator/battery
• Alternator fault : battery is not being charg­
ed
There is a ma lfunction in the a lternator or the ve­
hicle electrical system.
Drive to an authorized A udi dealer or authorized
Audi Service Facility immediate ly. Because the ve­
hicle battery is dra ining, turn off all unnecessary
electrical equ ipment such as the MMI. See your
authorized Aud i dealer or authorized Audi Serv ice
Facil ity if the battery cha rge level is too low.
(•) Low battery charge: Battery will be charged
while driving
The starting ability may be impaired .
If this message turns off after a litt le whi le, t he
battery ch a rged enough while driv ing.
liJJ,

.... N
0 > CX)
.... I.Cl U"I
.... I.Cl ....
- The seat is damp or wet.
A WARNING
Individua ls with reduced sensitivity to pain or
temperature could develop burns when using
the seat heating function. To reduce the risk
of injury, these individuals should not use
seat heat ing .
(D Note
To avoid damage to the heating elements in
the seats, do not kneel on the seats or place heavy loads on a small area of the seat.
(D Tips
- The setting for the seat heating on the driv­
er's side is ass igned to the key that is in use .
- If the front passenger 's seat heat ing is
turned on, it will not turn on again automat­
ically if more than 10 m inutes have passed
between sw itch ing the ign ition off and
switch ing it on again.
Auxiliary heater
A pp lies to vehicles: with diesel e ng in e
In cool outside temperatures, the electr ic auxi li­
ary heater helps the vehicle interior to wa rm
mo re quickly. The a uxiliary heater swi tches on
and off automatically accord ing to the vehicle
heating settings.
The "auxiliary heater " function can be sw itched
on and off in the MMI. Select: the
I MENU I button
> Car > S ystem s* contro l but ton > AC > Au xilia ry
heat er (fuel ).
Warm and cold
Engine preheater
Applies to vehicles: wi th engine prehea te r
( )
Fig. 75 Left fron t bump er: connecto r socke t@ for th e en ·
gine prehea ter
T he engine preheater s lowly warms the engine
coolant using a heating element when the vehicle
is parked. For this function, the cable provided
must be connected to a 120 Volt socket that is
protected from water and t hat is grounded a nd
equipped with a GFI circu it breaker, for example
in a ga rage. The engine reaches operating tem­
perature much more quickly afte r sta rting when
t h e coolant is preheated . This reduces fuel con­
s u mption and exha ust emissions dur ing the
warm-up phase.
Preheat ing the engine can take up to 3 hours de­
pend ing on the temperature o utside.
Connecting the engine preheat er
- Only use the connector cable provided and a
suitable extension cord, if necessary .
- All cables and connectors that are used must not be damaged
~ li::,. .
-Open the cover(!).
- Plug the connector cable into the socket @.
- If necessary, plug the connector cable into the
extension cord. Only use highly durab le exten­
sion co rds that are class 12 or better and can
be properly grounded to a three-prong wall
socket with a GFI circuit breaker and that are
not longe r than 100 feet (30 meters) .
- Plug the connector cable or extension cord into
a grounded 120 Volt wall socket that is pro­
tected by a GFI circuit breaker and that is pro­
tected against rain and other moisture. Never p lug the engine preheater into a conventiona l .._
75

Driving
-Always hold the steering wheel with your
hands in the 9 o'clock and 3 o'clock posi­
t ions to reduce the risk of injury if the airbag
deploys.
- Never hold the steer ing whee l in the
12
o'clock posit ion or with both hands on the
rim or the center of the steer ing whee l.
Holding the steering wheel inco rrectly s ig­
nificantly incr eas es the risk of inju ry to the
h ands, arms and head if t he ai rbag dep loys.
Starting and stopping
the engine (vehicles with
an ignition Lock)
Starting the engine with the key
A pp lies to veh icles: w ith ig ni tion lock
The ignition is switched on and the engine start­
ed with the key in the ignition .
Fig . 77 Ign it io n key pos it ions
Stee ring lock
If the steering whee l w ill not turn, the steering
lock is engaged .
.,. To release the steering wheel lo ck, inse rt the
k ey i n the ignition lock and tu rn t he key in the
-d irection of the arrow- while tu rning the steer­
ing wheel.
Sw itching the ignition on/off or preheating
.,. To switc h the ignition on, turn the ign ition key
to posit io n @ . The need le in the tachometer
moves into the
READY position.
.,. To switc h the ign ition off, turn the ignit ion key
to position @. The need le in the tachometer
moves into the
OFF position.
80
D iesel ve hicl es are p reheated while the ig nition is
switched on
m .
Starting the engine
You r vehicle is equipped wi th la unch control. As
soon as you have turned the ig nition key to pos i­
tion @, the eng ine will start au tomati cally .
.,. Press the brake pedal and move the sele ctor
lever to the P o r
N position.
.,. Turn the key briefly to pos it ion @. The ign ition
key a utomat ically returns to position @. D o not
press the acce lerator peda l when doing this.
Major elec trical equipmen t sw itches off tempora­
r ily whe n starting the engine.
It is possible t hat there will be a s ligh t de lay
whe n starting the engine in diesel veh icles in
colder temperatu res. Therefore, yo u must hold
t h e b rake pedal down until the eng ine starts . T he
i ndicato r ligh t turns on wh ile the engine is pre­
heating
iJ.
The preheating time depends on the coolant
temper ature and o utside temperature. The glow
pl ug indi cato r light
m will only tu rn on for ap­
proximately
1 second when the engine is warm or
t h e outside temperat ure is higher than
8 °C. That
means you can start the engine
immediately.
I f the engine does not s tart immedia tely, s top
the starti ng p rocedure by tu rni ng the ig nition key
to posit ion @ and repeat after
30 seconds .
Automatic start malfunction
There is an a utom atic st art ma lf u nct ion if the ~
(ga so lin e engine) or
m (diese l eng ine) indica tor
li ght tur ns on and the message
Engine start sys·
tem malfun ction! Please contact Service
ap ­
pears.
To star t the engine, hold the igni tion key in pos i­
tion @unt il the engine r uns.
D rive to an au thori zed A udi dealer or au thori zed
A udi Se rvice Fa cility immed iate ly to h ave the
malfunc tion correc ted .
& WARNING
- To red uce the r isk o f po ison ing, never allow
the engine to run in conf ined spaces .

Driving
Otherwise, there is the r isk that the vehicle
could roll.
- After the engine has been switche d off, the
radiator fan can continue to run for up to 10
minutes - even with the ign ition switched
off . It ca n also switch on again after some
t i me if the coolant tern perature rises as the
resul t of heat buildup or if the engine co m­
partment is heat ed by the su n's rays and the
eng ine is ho t.
(D Note
- If t he engine has been unde r heavy load for
an extended pe riod of time, heat builds up
i n the eng ine compartment after the eng in e
i s sw itche d off- the re is a risk of dam ag ing
the engi ne . Fo r thi s reaso n, let the e ng ine
run for at id le for approxim ately two mi ­
nutes befo re sh utting it off .
Starting and stopping
the engine (vehicles with
a convenience key)
Engine with the
button Starting
App lies to vehicles: w ith conve nien ce key
The I START ENGINE STOP I button switches the
igni tion on and s tar ts the engine.
F ig . 78 Cente r conso le : STAR T ENGIN E ST OP butto n (w ith
co nve nience key)
You can start yo ur car w ithout using your conven­
ience key . You must simp ly be c arrying the key
with you .
Plug-in hybrid drive* : refer to the informatio n for
starting the vehicle under ¢
page 100.
82
Switching the ignition on /off or preheating
If thP 'Tij ind icator lig ht blinks and the mess age
Plea se move steerin g wheel appears when
switching the ignition on, the stee ring is locked
by the steer ing lock . In th is case, turn the steer­
i ng wheel slightly to the left/right.
.,. To switch the ignit ion on or off, press t he
I STAR T ENGINE STOPI button . Do not press the
brake pedal while doing this .
The need le in the t achome ter moves to
READY
whe n the ignition switches on an d moves to OFF
when the ignition switches off .
D iesel ve hicles are p rehea te d while the ig nition is
switched on
Iii .
Starting the engine
Your vehicle is equipped with la unch control. The
engine starts a utomat ica lly when you press the
I START E N GIN E STOP ! button br iefly.
.,. Press the brake pedal and move the selector
lever to the P or N position .
.,. Press the
I START E NGINE STOP ! button briefly .
T he engine w ill sta rt.
Major elect rical equipment sw itches off tempora­
rily whe n starting the eng ine .
It is possible that there will be a s light de lay
when starting the engine in d iesel veh icles in
colder temperatures . Therefore, you must hold
the b rake pedal down until the eng ine starts . Th e
i ndica to r light turns on wh ile the engi ne is pre­
hea ting
Iii .
The preheating t ime depends o n the coolant
temperat ure and outside temperature . The glow
pl ug indica to r li ght
II will only tu rn on for ap­
prox im ately 1 se co nd when the engi ne is warm o r
t h e ou ts ide temperat ure is higher th an 8
°C. Tha t
me ans you can s tart t he engine
immedia tely .
If th e engine does not start immediately, stop
th e starti ng p ro cedure by pushi ng the
I S TAR T EN GINE ST OP ! button ag ain an d repe at
a ft er 30 seconds. ..,.

Driving
_& WARNING
- Never turn off the engine before the vehicle
has come to a complete stop. The full func­
tion of the brake booster and the power
steering is not guaranteed. You must use
more force to turn or brake if. Because you
cannot steer and brake as you usually
would, this could lead to accidents and seri­
ous injuries.
- Please note that the brake booster and pow­
er steering only work when the engine is
running. When the engine off, you must use
more force to steer or brake the vehicle. Be­
cause the usual steering and brak.ing capa­
bility is not available, the risk of accidents or
injuries increases .
- Always take the vehicle key with you when
leaving the vehicle, even for a short period
of time. This applies particularly when chil­
dren remain in the vehicle . Otherwise the
children could start the engine or operate
electrical equipment such as power win­
dows.
- For safety reasons, always park the vehicle
with the selector lever in the P position.
Otherwise, there is the risk that the vehicle
could roll.
- After the engine has been switched off, the
radiator fan can continue to run for up to 10
minutes -even with the ignition switched
off. It can also switch on again after some
time if the coolant temperature rises as the result of heat buildup or if the engine com­
partment is heated by the sun's rays and the
engine is hot.
(D Note
If the engine has been under heavy load for
an extended period of time, heat builds up in
the engine compartment after the engine is
switched off- there is a risk of damaging the
engine. For this reason, let the engine run for
at idle for approximately two minutes before
shutting it off.
84
Starting the engine if there is a
malfunction
Applies to vehicles: with convenience key
It may not be possible to start the engine under
certain circumstances, for example if the battery
in the vehicle key is drained, if interference is af­
fected the key or if there is a system malfunc­
tion.
Fig. 79 Steering column/remote control key: starting the
e ngin e if there is a malfunct ion
As long as the message y>>) Key not recognized.
See owner's manual
appears, you can start your
vehicle using the emergency start function.
.,. Press the brake pedal¢ ,&.
in Engine with the
button
START ENGINE S TOP Starting on
page 83.
.,. Press the ~1s=T-A~R~T~E-N~G=r-N~E~S~T~O~P~ I button.
.,. Hold the master key in the location indicated as
shown in the illustration
t>>) ¢ fig. 79. The en­
gine will start.
.,. If the engine does not automatically start,
press the
I START ENGINE STOPI button again .
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediately to have the
malfunction corrected .
@ Tips
You can display the message that appears
during an emergency by pressing the
I START ENGINE STOPI* button.
Messages
Turn off ignition before leaving car. Battery is
discharging .,.

e-tron
overhangs, carports or similar structures . Switch
the ignition
off. Have the problem corrected by
an author ized Audi dealer or authorized A udi
Serv ice Facility .
• Elec tric s ystem: o verheated. Safel y park ve­
hicle and check coo lant
The coolan t leve l is too low or the coolant tem ­
pera ture is too high .
S top the vehicle in the outdoo rs as soon as it is
safe ly possible . Switch the ignition off.
Read the important safety precautions ¢.&.
in
Coolant on page 109 and check the coolant level
¢page 108.
If the coolant level is OK, the malfunction may be
caused by the system overheating . Let the vehi­
cle's electric drive system cool down for some
time .
If the message turns
off after cooling down and
sw itching the ign ition back on, you ca n continue
driving. Contact an author ized Audi dealer or au­
thor ized A udi Se rvice Facility immed iate ly to have
the ma lf u nction co rrected.
If the indicator lig ht stays on, contact an author­
ized A ud i dealer or authorized Aud i Serv ice Faci li­
ty .
Bil Drive system : sys tem fault! Pleas e contact
work shop
There is a malfunction in the plug-in hybrid sys ­
tem. Drive to an authorized Audi dealer or au­
thor ized Audi Service Facility immediate ly to have
the ma lfunction corrected .
II Drive sy stem: system fault! Restart not po s·
sible. Ple ase contact wo rkshop
There is a mal func tion in the plug -in hybrid sys­
tem . Do not open the engine compartment lid .
Drive to an a uth orized Aud i dea le r or authorized
Aud i Serv ice Facility immediately to have the
malfunct io n corrected.
II Batter y temperature too low . Engine start
not possible . See owner's manual
The outside temperature is too low. The vehicle
can no longer start at temperat ures below -18 °F
102
(- 28 °C) . Contact your author ized Audi dealer or
autho rized Audi Service Facility.
POWER LIMIT Warning! Limited power
If the indicator l ight turns on and this message
appears , there may be an engine cont rol mal­
funct ion. The
(m ind icator light in t he instr u­
ment clus ter a lso turns on. The e ng ine o utput is
reduced. Dr ive to an a utho rized Audi dea ler or
autho rized Audi Service Facility immedia tely to
have the malfunction corrected.
II e -tron mode : EV curr ently unavailable
This message appears w hen the 1-,$ 1 button is
pressed and the conditions for e lectric drive
mode are no t me t.
IIJ Vehicle sound: malfunction! Pedestrians
cannot h ear vehicle. P lease contact Service
if the indicator light t urns on and this message
appears, pedestrians and bicyclists can no longer
hear the vehicle when it is driving in electric
mode. Turn off the veh icle and switch to dr iv ing
with the gasoline e ngine . To activate the gasoli ne
engine, select the
Charge batt ery mode
¢page 103 with the kl"I button. Drive to a n au­
tho rized Audi dea le r or a uthorized Audi Service
Facility immediate ly to have the malfunction cor ­
rected.
Range display
Applies to vehicles: wit h pl ug-in hy brid drive
Fig. 89 Ins trument cluster example image: range disp lay
The range can be d isplayed in the on -board com­
p uter ¢
page 29.
Depend ing o n the selected p lug-in hybrid mode,
the d isp lay disp lays the follow ing informa tion:
Ill>