2018 AUDI Q3 coolant temperature

Instrumen ts and ind icator ligh ts
Instruments and indicator Lights
Instruments
Instrument cluster overview
The instrument cluster is the central information center for the driver.
Fig. 3 Instrument cluster overv iew
(D ISETI button .... ........... .. .
Tachometer .... .. .. ..... .... .
Engine coolant temperature gauge 9
9
8 @
®
©
®
Turn signal ind icator lights ..... . 34
Disp lay w ith:
- Indicator lights
- Driver information system
10
18
@ Speedometer
0
®
Fu el level .. .... ........... .. .
Trip odometer reset button 10.0 1
@ Tips
The instrument illumination for the needles
and dia ls turns on when the ignition is turned
on and the lights are turned off. The illumina­
tion for the gauges reduces automat ica lly and
eventually turns off as brightness outside in­
creases . T his function reminds the drive r to
turn the low beams on at the approp riate
time.
Coolant temperature indicator
9
9
The coolan t temperature indic ato r@ r=:> page 8,
fig. 3 only operates when the igni tion is switched
8
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on. To prevent engine damage, please observe
the following notes about the temperature rang­
es.
Cold ran ge
If the needle is at the bottom of the gauge, the
engine has not reached operating temperature
yet. Avoid high eng ine speeds, full accelerating
and heavy engine loads.
Normal range
The engine has reached operating temperature
when the needle moves into the center of the
gauge under norma l driving condit ions. The nee­
dle may move farther to the right on the gauge
with heavier engine load at hig h outside temper ­
atu res . If the needle is far ove r on the r ight side
of the gauge and the. in dicator light turns on
i n the instrument cluster, then the coolant tem­
peratu re is too high
r=;, page 12.
(D Note
- Aux ilia ry headlights and ot her accessories in
front of the coo ling-a ir intake impa ir the
cooling effect of the coolant. This increa ses
the risk of the engine overheating dur ing ..,_

Instruments and indicator lights
If the ABS indicato r light LtiiJ (U SA mode ls)/ li]
(Canada models) , the ESC ind icator light
Dl and
the brake system ind icator light
1111 ( U SA mod­
els)/ . (Canada models) all turn on and this
message appears , then the ABS, ESC and braking
d istr ibut io n are malfunctioning ¢,&. .
Do not cont inue driving . See an autho rized Aud i
dealer or authori zed Aud i Serv ice Facility for as­
sistance ¢,&. .
1111 (USA models )/. (Can ada model s) Park­
ing brake: System fault! See owner 's manual
-If the indica tor l ight and the message appear
when the vehicle is stationar y or after sw itch­
ing the ignitio n on ,
check if you can release the
parking b rake.
If you cannot re lease the park­
ing brake, see an authori zed Aud i dea ler or au­
thori zed Audi Serv ice Facility. If you can rele ase
the parking brake and the message still ap ­
pears, see an autho rized Aud i dealer or author­
ized Audi Service Facility immed iately to have
the malfunction corrected.
- If the indicator l ight and message appea r while
dri vin g ,
the hill start assist or emergency brak­
ing func tion may be malfunctioning. It may not
be possib le to set the parking brake or release
it once it has been set . Do not park your veh icle
on hi lls. See an authorized Audi dealer or au­
thorized Audi Service Facility for assistance .
Applies to: USA models
If t he 1111 and EiJ indicator lights turn on a t the
same time, the brake pads are worn out
¢ page 14.
& WARNING
-Read and follow the warn ings in
¢ page 155, Working in the engine com­
partment
before open ing the hood and
check ing the b rake fl uid level.
- If the brake system indicator light does not
turn off or it t urns on while driv ing, the
brake fluid level in the reservoir is too low ,
and this increases the risk of an acc ident .
Stop the vehicle and do not continue dr iv­
ing. See an author ized Audi dealer or au­
tho rized Aud i Serv ice Facility fo r ass ist ance.
12
- If the brake system indicator light t urns on
together w ith the ABS and ESC indicator
lights, the ABS/ESC regu lating function may
be malfunct ion ing . Fu nctions that stabilize
the vehicle are no longer available . This
could cause the vehicle to swerve, which in­
creases the risk that the vehicle will slide.
Do not co nt inu e d rivi ng. See an autho rize d
Aud i dea ler or a uthorized Aud i Serv ice Facili ­
ty for ass istance .
PARK/<®) Electromechanical parking brake
If the -(USA mode ls) I. (Canada models)
i ndicato r light turns on, the parking brake was
set.
- (USA model s) /. (Can ada model s) Pre ss
brake pedal to r ele a se parking brake
To release the parking brake , press the brake
pedal and press the(®) button at the same t ime
or start driving with hill start assist¢
page 65,
Starting from a stop.
f p j Pa rking brake: S ystem faul t! See owner' s
manual.
T here is a ma lfunction in the parking brake. Drive
to an authori zed Aud i dea ler or a uthori zed Audi
Service Facility immediate ly to have the malfunc­
tion corrected.
(D Tips
For additional informat ion on the parking
brake, see
¢ page 63.
-F-Cooling system
• Turn off engine and ch eck coolant level.
The coolant level is too low.
Do not continue driving and switch the engine
off. Check the coolant level ¢
page 162.
-If the coo lant level is too low, add coolant
¢
page 162 . Only continue driving on ce the in­
dica tor ligh t turns off .
• Coolant temperature! Let engine run with
v e hicle stationar y.

Warm and cold
Automatic climate control system
Applies to: vehicles with automatic climate control
Pressing AUTO button and setting the temperature to 72 °F (22 °C) is recommended.
Fig . 66 Cente r console: cont ro ls fo r auto matic cl imate co ntrol system
The f unct ions can be switched on and off by
pressing the b uttons or adjusted by turning the
knob. The
LE D in a button w ill light up when the
function is switched on.
Autom atic climate control sy stem
The automat ic climate control system automat i­
cally maintains a temperatu re once it has been
set . In all heat ing mode funct ions except
defrost,
the blower on ly switches to a higher speed once
the engine coolant has rea ched a certa in temper ­
ature .
OFF climate control s ystem
The OFF button switches the climate control sys­
tem on or off . A irflow from outside is blocked
when the climate con trol system is swit ched off .
AUTO
Automatic mode
Automatic mode ma intains a constant tempera­
ture ins ide the vehicle . Air temperature, airflow
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and air distrib ution are controlled automatically .
AUTO mode switches off once a button in the cli­ mate contro l system is pressed .
A/C
cooling mode
The cooling mode only functions with the blower
turned on . You can turn the cooling system on or
off by pressing the A/C button . The a ir is not
cooled and hum idity is not removed when cooling
mode is sw itc hed off. This can cause fog o n the
windows. The cooling mode sw itches off a uto­
matically when there are cold outside tempera­
tures.
- ! -Temperature
The tempe rature can be set for the dr iver and the
front passenger separately using the left/rig ht
knob. Tempe ra tu res can be set between a range
of 60 °F (+16 °C) and 84 °F (+28 °C) .
If outside of
th is range,
LO or HI will appear in the climate
contro l system display. At both of these settings, ..,_

Driving
reached operating temperature yet. Yo u could
damage the engine .
@ For the sake of the environment
Do not let the engine r un while par ked to
warm up . Begin driving immediately . This re­
duces unnecessary emissions .
@ Tips
Some noise after starting the engine is nor­
mal and is no cause for concern.
Stopping the engine
A pp lie s to: ve hicles w ith conve nien ce key
~ Bring the vehicle to a fu ll stop.
~ Move the selector lever into the P position.
~ Press the I STAR T ENGINE ST OPI button
¢ page 61, fig. 69 .
Engaging the stee ring lock1
)
The steering locks when you turn the engine off
using the !STAR T ENGINE ST OP I button and
open the dr iver's door.
The locked steering he lps prevent vehicle theft.
Emergency off function*
If it is absolutely necessary, the engine can also
be turned
off while driv ing at speeds starting at
4 mph (7 km/h). To switch the engine
off, press
the lS T AR T
ENGINE ST OPlbutton twice in a row
b riefly or press and hold for longer than two sec­
onds .
.8_ WARNING
- Never turn off the engine before the veh icle
has come to a complete stop. The brake
booster and power steering only work when
the engine is running. If the engine is
off,
you have to use more force when steer ing or
braking . Because you cannot steer and brake
as you usually wou ld, this could lead to acci­
dents and serious injuries.
- Always ta ke the key with you whenever you
leave you r vehicle. Othe rw ise, the engine
l) This fun ction is not availab le in all coun tries.
62
could be started or electrical equipment
such as the power windows could be operat­
ed. Th is can lead to serious injury.
- 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 unintentionally .
(D Note
If the engine has been under heavy load for
an extended period of time, heat builds up in
the eng ine compartment after the engine is
switched
off and there is a r isk of damag ing
the eng ine . For th is reason, let the engine run
for at idle for approximately two minutes be­
fo re shutti ng it
off.
(D Tips
For up to 10 minutes after stopping the en­
gine, the radiator fan may turn on again auto­
matically or it may continue to run (even if
the ign ition is switched off) for the following
r easons:
- The coolant temperature is increas ing due
to trapped heat.
-If the eng ine is warm and the engine com­
partment a lso heats up from strong sun­
light.

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Trailer towing
Driving with a trailer
General information
Your vehicle is primarily intended for transport­ ing people and luggage . However, if you drive
with a trailer , follow the technical requirements,
the operation and driving tips, and the legal reg­
ulations.
Driving with a trailer affects the vehicle's fuel
consumption, performance and wear.
It also re­
quires higher concentration from the driver.
A WARNING
Do not transport any people in a trailer due to
the risk of fatal injury.
Technical requirements
Certain requirements must be met when towing
a trailer.
Trailer hitch
Only use a trailer hitch with a removable ball hitch mount and ball hitch. The trailer hitch must
be permitted for the vehicle , the trailer and the
permitted total weight of the trailer being
pulled. Above all, it must be securely and safely
attached to the vehicle trailer.
Never mount a trailer hitch on the bumper. The
trailer hitch must be mounted in a way that does
not impair the function of the bumper. Do not
make any changes to the exhaust system and the
brake system.
Check regularly if the trailer hitch is securely mounted. Always follow the instructions given by
the trailer hitch manufacturer.
Trailer brakes
If the trailer has its own brake system, then fol­
low the manufacturer specifications. However,
the brake system on the trailer must never be
connected to the vehicle brake system.
Trailer towing
Engine cooling system
Driving with a trailer means a higher load on the
engine and the cooling system. The cooling sys­
tem must be designed for additional load and
contain enough coolant
c::> (D .
A WARNING
-
-Never mount a "weight-distributing" or
"load-balancing" trailer coupler as the trail­
er hitch . The vehicle was not designed for
these types of trailer hitches . The trailer
hitch can malfunction and the trailer can
break off from the vehicle.
- If the trailer is equipped with electronic
brakes, these brakes cannot be activated by
a factory-installed control system, which in­
creases the risk of an accident.
- To reduce the risk of injury, always remove
the ball hitch mount if no trailer is mount­
ed.
(D Note
Longer inclines cannot be driven without a
suitable cooling system, especially if the out­
side temperatures are high. otherwise, this
increases the risk of engine damage.
' Operating instructions
Several things must be noted when towing a
trailer.
Towing capacity
The permitted towing capacity for trailers with­
out brakes is 1,650 lbs (750 kg).
The permitted towing capacity for trailers with brakes is 2,200 lbs (1,000 kg) .
These values apply to roads with up to 12% in­
cline.
Tongue weight
The maximum permitted tongue weight of the
trailer drawbar on the trailer hitch ball head may
not be exceeded. ..,.
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Bra kes
Brake i n a t imely man ner. Downsh ift before driv­
ing downhill so that the engine can assist wit h
braking
~ .&. .
When using a tra ile r with ove rru n b rakes, first
b ra ke gen tly the n qu ickly . T his red uces the risk of
je rking wh ile braking if the trailer wheels loc k up.
Engine coolant temperature
P ay a ttention specifica lly to the coolant tempera­
ture d isp lay when t here are high ou tside tempe r­
a tures, a nd when dr iv ing on long inclines
~ page 8. Shift to a highe r gear in a t imely m an­
n e r.
,&. WARNING -
Constant b raking causes the brakes to ove r­
heat and substant ia lly reduces b raking per­
formance, increases braking distance or caus­ es complete fa ilure of the brake system .
Trailer towing
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Fuel filler door emergency release
If the central locking system is faulty, the fuel filler door can be unlocked manually.
Fi g. 134 Right si de tr im j:>ane l in the luggage compart­
ment: emergen cy release mechani sm
The emergency opening mechanism is located
behind the right side trim panel in the luggage
compa rtme nt.
• Remove the cover in the side panel.
• Loosen the strap from its bracket -arrow- and
pull on it carefully<=:>
fig. 134 c:>(D . The filler
doo r is released .
• Press on the lef t side of the fuel fille r doo r to
open it
<=:> page 153, fig. 132 .
(D Note
Onl y pull o n the loop until you feel resi stance.
You will not he ar it relea se. O therwise yo u
co uld d amage the eme rge ncy re lea se me ch a­
nism .
Catalytic converter
The vehicle may o nly be dr iven with unleaded
gasoline, otherwise the catalyt ic converter will be
destroyed .
N ever d rive until the tank is comp letely e mpty .
The irregular supply of f uel th at resul ts from that
can cause engine m isfires. Uncombus ted f uel will
enter the exhaust system, wh ic h can cau se ove r­
heat ing and damage to the catalyt ic converter .
A WARNING
-The temperature in the ex ha ust system is
high, both when dr iving and after stopping
the engine.
-
Checking and Filling
- Never touch the exhaust tail pipes o nce they
have become hot . This cou ld resu lt in burns.
- Do not par k your vehicle over flammable
mate ria ls s uch as grass or leaves because
the high temperature of the emissions con­
trol system could start a fire.
- Do not app ly unde rbody protectant in the
exhaust system area, because this increases
the risk of fire.
Engine compartment
' Working in the engine compartment
Special care is required if you are working in the
engine compartmen t
For work in the engine compartment, such as
checking and fill ing fluids, there is a risk of in­
jury, scalding, accident s, and burns . For thi s
reason, follow all the warnings and general
s afety pre caution s provided in the following in ­
formation. The engine compartment is a dan­
gerous a rea on the vehicle .
<=:> .&.
A WARNING
-Turn the engine off .
- Sw itch th e ignition off .
- Se t the p arking brak e.
- M ove the selec tor lever i nto the P position.
- Never open the hood whe n th ere is steam o r
coo lant escaping from the engine comp art­
men t, bec ause there is a risk that yo u could
be burned. Wai t until no s te a m o r coolan t is
escaping .
- Le t t he eng ine cool down.
- Keep children away from th e eng in e com-
p ar tme nt.
- N ever sp ill fluid s on a ho t engine . These flu­
i d s (su ch as the free ze p ro te ct ion contained
in the coolant) c an catch fi re.
- Avoid short circui ts in th e electrical system.
- When working in the engine compartment,
remember that the radiator fan can swi tch
o n even if t he igni tion i s sw itched off, w hich
i n cre a ses the r is k of person al injury.
~
155

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today's automobiles, have steadily reduced the
scope of maintenance and repairs which can be
carried out by vehicle owners.
Also, safety and
environmental
concerns place very strict limits
on the nature of repairs and adjustments to en­
gine and transmission parts which an owner can perform .
Maintenance, adjustments and repairs usually re­
quire special tools, testing devices and other
equipment available to specially trained work ­
shop personnel in order to assure proper per­
formance, reliability and safety of the vehicle and
its many systems.
Improper maintenance, adjustments and repairs
can impair the operation and reliability of your
vehicle and even void your vehicle warranty .
Therefore, proof of servicing in accordance with
the maintenance schedule may be a condition for upholding a possible warranty claim made within
the warranty period.
Above all , operational safety can be adversely af­
fected, creating unnecessary risks for you and
your passengers.
If in doubt about any servicing, have it done by
your authorized Audi dealer or any other properly equipped and qualified workshop. We strongly urge you to give your authorized Audi dealer the
opportunity to perform all scheduled mainte­ nance and necessary repairs. Your dealer has the
facilities, original parts and trained specialists to keep your vehicle running properly .
Performing limited maintenance yourself
The following pages describe a limited number of
procedures which can be performed on your vehi­
cle with ordinary tools, should the need arise and
trained personnel be unavailable. Before per­
forming any of these procedures, always thor­
oughly read all of the applicable text and careful­ ly follow the instructions given . Always rigorously
observe the
WARNINGS provided .
Before you check anything in the engine com­
partment, always read and heed all WARNINGS
c::> .&. and c::> .&. in Working in the engine compart­
ment on page 155. Consumer Information
A WARNING
-
Serious personal injury may occur as a result
of improperly performed maintenance, ad­
justments or repairs .
- Always be extremely careful when working
on the vehicle. Always follow commonly ac­
cepted safety practices and general com­
mon sense. Never risk personal injury.
- Do not attempt any of the maintenance,
checks or repairs described on the following
pages if you are not fully familiar with these
or other procedures with respect to the ve­
hicle, or are uncertain how to proceed.
- Do not do any work without the proper tools
and equipment. Have the necessary work
done by your authorized Audi dealer or an­
other properly equipped and qualified work­
shop.
- The engine compartment of any motor vehi­ cle is a potentially hazardous area. Never
reach into the area around or touch the radi­
ator fan.
It is temperature controlled and
can switch on suddenly - even when the en­
gine is off and the ignition key has been re­
moved. The radiator fan switches on auto­
matically when the coolant reaches a certain
temperature and will continue to run until
the coolant temperature drops.
- Always remove the ignition key before any­
one gets under the vehicle.
- Always support your vehicle with safety
stands if it is necessary to work underneath
the vehicle . The jack* supplied with the vehi­
cle is not adequate for this purpose and
could collapse causing serious personal in­
jury.
- If you must work underneath the vehicle
with the wheels on the ground, always make
sure the vehicle is on level ground, that the
wheels are always securely blocked and that the engine cannot be started.
- Always make sure the transmission selector
lever (automatic transmission) is in P (Park
position) and the park brake is applied.
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