2016 AUDI A3 overheating

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-Please note that unconsciously "resting"
your foot on the accelerator pedal prevents the cruise control from braking. This is be­
cause pressing the accelerator pedal over­
rides the cruise control system .
-If there is a brake system malfunction such
as overheating when the speed warning sys­
tem is switched on, the braking function in
the system will be deactivated. The remain­
ing speed warning system functions will re­
ma in active, as long as the~ (USA mod­
els) /
fil (Canada models) indicator light is
on.
{i) Tips
- The cruise control system is ideal for
stretches w ith speed limits. The d river is re­
sponsible for adhering to the correct speed.
- The cruise control remains active when
shifting gears.
- The brake lights turn on when the brakes
are act ivated.
Switching on
Appl ies to vehicles: with c ru ise control system
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Fig. 114 Operat ing lever: cruise contro l system
.. To switch the cruise control on, pull the lever
into position @~
fig. 114.
.. Drive at the speed to be maintained .
.. To store the speed, press the button @. The
@;\1)~14 (USA models) / l'I (Canada models)
turns on in the instrument cluster.
Assist
Changing speed
App lies to vehicles: w ith cruise control system
., To increase or decrease the speed in incre­
ments,
tap the lever in the 010 direction
~ page 131, fig. 114.
.. To increase or decrease the speed quickly, hold
the lever in the 0 / 0 direction until the de­
sired speed is reached.
Overriding the speed
You can press the accelerator pedal down to in­
crease your speed, for example if you want to
pass someone. The speed you saved earlier will
resume as soon as you let off of the accelerator
pedal.
If, however, you exceed your saved speed by 5
mph (10 km/h) for longer than 6 minutes, the
cruise control turns off temporarily .
The@;\!)~14
(USA mode ls) ;fil (Canada models) indicator
light in the instrument cluster turns off and the
stored speed is maintained.
Preselecting the speed
Appl ies to vehicles: w it h cruise co ntrol system
You can pre-select your desired speed when the
vehicle is stationary.
., Switch on the ign ition .
.. Pull the lever into position
(D 9 page 131,
fig. 114 .
.. To increase or decrease the speed, tap the lever
in the
010 direction.
This function makes it possible, for example, to
save the speed you want before driving on the
highway. Once on the highway, activate the
cruise control system by pulling the lever toward
the position
(D .
Switching off
Applies to veh icles: w it h cru ise co ntrol system
Temporary deactivation
.. Press the brake pedal, or
.. Press the lever into position@ (not clicked into
place)
~ page 131, fig. 114, or ..,
131

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0 > co ,...., ~ Never put too much motor oil in your engine
¢ page 242, Adding engine oil ~ Never try to push-or tow-start your vehicle.
The cata lytic converter is an efficient "clean -up"
device bui lt into the exhaust system of the vehi­
cle. The catalytic converter burns many of the
pollutants in the exhaust gas before they are re­
leased into the atmosphere.
The exclusive use of unleaded fue l is critica lly im­
portant for the life of the catalytic converter and
proper functioning of the engine.
A WARNING
The temperature of the exhaust system is
high, both when driving and after stopping
the engine.
- Never touch the exhaust tail pipes once they
have become hot. This could result i n burns .
- Do not park or operate the vehicle in areas
where the hot exhaust system may come in
contact with dry grass, brush, fuel spill or
other material which can cause a fire .
-Do not apply additional undercoating or
rustproofing o n or near the exhaust mani­
fold, exhaust pipes, catalytic converte r o r
heat s hields. During dr iving, t he substance
used for under coati ng could ove rheat and
c ause a fire.
(D Note
- Be aware that just one tank filling with
leaded fue l wi ll al ready ser iously degrade
the pe rformance of the ca talytic converter.
- Do not ex ceed the correct eng ine o il level
~page 242.
- Do not d rive until the fuel tank becomes
complete ly empty. The engine co uld m is­
fire. Unburned fuel could also get in to the
exhaust system and this co uld cause t he
cata lytic converter to overheat .
- Do no t sw itch off t he igni tion while t he vehi­
cle is moving.
- Do no t continue to operate your vehicle un­
der these cond it ions, as othe rwise fue l can
reach the catalytic converter. This cou ld re ­
su lt in overheating of the converter, req uir­
i ng its replacement.
Ch eck ing and Filling
-To ass ure eff icient operat ion of the Emis ­
sion Contro l System:
- Have yo ur vehicle maintained p roperly and
i n accordance with the serv ice recommen­
dat ions in yo ur War ranty
& Ma intenance
booklet.
- L ack of proper ma intenance as well as im­
p roper use of the ve hicle will impa ir the
f u nction of t he emission control system
a nd could lead to damage.
~ For the sake of the environment
Eve n when the Em iss ion Control System is op­
era ting properly, t he exhaus t gas can have a
su lf ur -li ke exhaus t gas sme ll under some op­
erating s tates . This depends on the sul fur
content of the fuel being used. Using a differ­
ent brand of fuel may help, or fi lling the tank
with lead-free super grade gasoline.
Diesel particulate filter
Appl ies to vehicles: wit h diesel eng ine
The diese l particu late filter filte rs nearly all of
the soot part icles out of the exhaust. The filter
cleans itself automatically under norma l driving
condit ions. If the filter cannot clean itself (for ex­
amp le, because yo u are o nly dr iving short distan ­
ces), the filte r becomes clogged with soot and
the
II symbol fo r the diese l par ticu late filter il­
l u minates
¢page 23.
A WARNING
-Do not park your veh icle over flammab le
materia ls such as grass or leaves because
the high temperature of the diesel particu ­
late filte r cou ld start a fi re.
-
- Do not app ly an underbody protectant in the
exhaust system area or a fire could start .
233

Checking and Filling
-To reduce the risk of burns from hot engine
oil, let the engine cool down to the touch.
- When removing the oil drain plug with your
fingers, stay as far away as possible. Always
keep your forearm parallel to the ground to
help prevent hot oil from running down your
arm.
- Drain the oil into a container designed for
this purpose, one large enough to hold at least the total amount of oil in your engine .
- Engine oil is poisonous. Keep it well out of
the reach of children .
- Continuous contact with used engine oil is
harmful to your skin. Always protect your
skin by washing oil off thoroughly with soap
and water .
CD Note
Never mix oil additives with your engine oil.
These additives can damage your engine and
adversely affect your Audi Limited New Vehi­
cle Warranty.
@ For the sake of the environment
-Before changing your oil, first make sure
you know where you can properly dispose of
the used oil.
- Always dispose of used engine oil properly.
Do not dump it on garden soil, wooded
areas, into open streams or down sewage
drains.
- Recycle used engine oil by taking it to a used
engine oil collection facility in your area, or
contact a service station.
Cooling system
Coolant
The engine coolant performs two functions: it
keeps the engine from overheating and it pro­ tects the engine from freezing in the winter.
The cooling system is sealed and generally re­
quires little attention.
The cooling system has been filled at the factory
with a permanent coolant which does not need to
be changed. The coolant consists of a mixture of
244
specially conditioned water and the manufactur­
er's glycol-based coolant additive Gl3 antifreeze
with anticorrosion additives (50% for USA mod­ els; 60% for Canadian models). This mixture
both assures the necessary frost protection and
protects metal components in the engine's cool­
ing system from corrosion and scaling. It also
raises the boiling point of the coolant.
Do not reduce the concentration of the coolant in
the summer by adding plain water.
The propor­
tion of coolant additive must be at least 50%
but not more than 60%
to maintain antifreeze
protection and cooling efficiency. If the coolant
frost protection is too low, the coolant could
freeze and damage the vehicle heating and en­
gine cooling system.
For year-round driving, antifreeze is added at the
factory for temperatures down to:
--31°F(-35°C)USA
- - 40 °F ( - 40 °C) Canada.
If you must add coolant, use a mixture of water
and coolant additive. Mixing the coolant additive
with distilled water is recommended.
A WARNING
Before you check anything in the engine com­
partment, always read and heed all WARN­
INGS
~ page 236.
CD Note
- Before winter sets in, have the coolant
checked to see if the coolant additive in your
vehicle is sufficient to meet the climate con­ ditions. This is especially important if you
live in a region where the winter is extreme­
ly cold.
If necessary, increase the proportion
of coolant additive to 60%.
- When adding coolant additive to your cool­
ing system, remember:
- We recommend using only coolant addi­
tive Gl2++ or G13 (check the label) for
your vehicle. This coolant additive is avail­
able at authorized Audi dealers. Other
types of antifreeze can significantly re­
duce corrosion protection. The resulting