2017 AUDI A6 engine

Warm and cold
Warm and cold
Climate control system
Description
The climate control system warms, cools and re­ moves humidity from the air in the vehicle interi­
or. It is the most effective when the windows and
sunroof * are closed. If there is a bui ld-up of heat
insid e the vehicle, ventilation can he lp to speed
up the cooling process.
I n all heating mode f unctions, except for defrost,
the blower only switches to a higher speed once
the engine coolant has reach ed a suffici ent tem­
perature .
Pollutant filt er
The po llutant filter removes poll utants such as
dust and pollen from the a ir .
Ke y recognit ion
A pp lies to: ve hicles w ith de luxe au toma tic clima te co ntro l
The blower sett ing and air distribut ion are stored
automatically and ass igned to the remote control
key that you are using.
A ppl ies to: ve hicles w ith 4 -zo ne del uxe auto matic c limate
co ntrol
The climate con trol set tings are automatically
stored and assigned to the remote control key
that is in use.
A WARNING
Poor visibility can lead to accidents.
- For safer driving, keep all windows free of
ice, snow and fog .
- Become familiar as quickly as possible with the correct use and function of the cl imate
contro l system, especially with the defrost­
ing and defogg ing function.
- When the temperat ure is below freezing,
only use the windsh ield washer system after
60
the windshield has been warmed by the cli­
mate control system. The washer fluid could
freeze on the windshie ld and impair visibi li­
ty .
Cl) Note
-If you suspect that the cl imate contro l sys­
tem is damaged, switch the system
off to
prevent further damage and have it checked
by an authorized Aud i dealer or authorized
Audi Service Facility .
- Repa irs to the Aud i climate control system
requ ire special technical knowledge and
special tools . See an authorized Aud i dea le r
or autho rized Aud i Service Faci lity .
@ For the sake of the environment
- To save fuel, turn off cooling mode by press ­
ing the
IAJC I button. This w ill also reduce
em issions .
- In veh icles w ith a diesel engine, you ca n
switch the auto supplementary heater off in
the Infotainment system.
(D Tips
- To prevent interference with the heat ing
and cooling output and to prevent the win­
dows from fogging over, the a ir intake in
front of the windshie ld must be free of ice ,
snow or leaves.
- Conde nsation from the coo ling system can
dr ip and fo rm a pudd le of water under the
vehicle. This is norma l and does not mean
there is a leak.
- Th e energy managemen t sys tem may tem­
porarily switch
off certain functions, such as
t h e seat heating * or rear window defogger.
These systems are ava ilable again as soon
as the ene rgy supply has been restored.

Warm and cold
The maximum amo unt of air flows mainly from
the vents below the windshield. Recircu lat ion
mode switches off . The temperature should be
set to approximately 72
°F (22 °() .
The IAUTO I button switches the defroster off .
IClill REAR I Switching the rear window defogger
on/off
The rear window heater on ly operates when the
engine is running . It switches off automatica lly
after a few minutes, depending on the outs ide
temperature .
To prevent the rear w indow heater from switch­
ing off automatically, press and ho ld the
IQijl REARI
button for more than 2 seconds . This is stored
until the ignit ion is switched off.
G'.l Adjusting seat heating*
Pressing the button switches the seat hea ting on
at the highest setting (level 3). The LEDs indicate
the tempera ture level. To reduce the tempera ­
ture, press the button again. To switch the seat heating off, press the button repeatedly until the
LED turns off.
After 10 minutes, the seat heating automatically
switches from level 3 to level 2 .
4-zone deluxe automatic climate control
A ppl ies to: ve hicles with 4-zo ne deluxe auto matic cl imate cont rol
Air vents
You can open or close the center and rear vents in
the cockpit and the vents in the rear center con­
sole using the ridged thumbwheels . The levers
adjust the direction of the airflow from the vents.
A WARNING
- You shou ld not use the recirculation mode
for an extended period of time since no
fresh air is drawn in . W ith the air-condition­
ing sw itched off, the windows can fog up,
which increases the risk of an acc ident.
- Individ uals with reduced sensit iv ity to pa in
or temperature could develop burns when
using the seat heating function. To red uce
the risk of injury, these individuals should
not use seat heating.
(D Note
To avoid damage to the heating elements in
the s eats , do not knee l on the seats or place
heavy loads on a small area of the seat.
We recommend pressing the IAU TO I button and setting the temperature to 72 °F (22 °C).
Fig. 73 4-zo ne deluxe automat ic climate contro l: controls
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Warm and cold
mode switches off. The temperature shou ld be
set to approximate ly 72 °F (22 °C).
The
IAUTOI button switches the defroster off.
IQiiJ REARI S witching the re ar window defo gger
o n/off
The rear window heater on ly operates when the
engine is running.
It sw itches off a utomat ica lly
afte r a few minutes, depending on the outs ide
temperature.
To prevent the rear w indow heater from switch­
ing off automatically, p ress and ho ld the
l iiiP REAR I
button for more than 2 seconds . This is stored
until the ignition is switched off.
ISYNC I Sy nchronization
When synchronization is switched on, the set­
tings for the drive r's side are applied to the front
passenger's side (ex cept for seat heating/ventila­
tion*). The settings in the rear are a lso synchron­
ized. Synchronization switches off if the settings
are adjusted on the front passenger's side or in
the rear.
You can synch ronize the settings in a row by
pressing and holding a contro l. For example, to
apply the settings for the front passenger's side
to the driver's side, press and ho ld the contro l on
the front passenger's side. The same applies to
the rear .
Res idua l h eat *
With the ignition turned off, you can activate the
residual heat function by pressing the~ button
¢ fig. 73. The residual heat from the coolant is
used to heat the vehicle interior. The residual
heat function switches off automatically after
about 30 m inutes .
Air vents
You can open or close the center and rear vents in
the cockpit and the vents in the rear center con­
sole and door pillars using the ridged thumb­
wheels . The levers adjust the direction of the air­
flow from the vents .
64
A WARNING ,_
- You shou ld not use the recircu lation mode
for an extended period of time since no
fresh air is drawn in. W ith the air-condition­
ing sw itched off, the windows can fog up,
which inc reases the risk of an acc ident.
- Individuals w ith reduced sensit iv ity to pa in
or temperature could develop bu rns when
using the sea t heati ng f unct ion. To red uce
the risk of i nju ry, these individuals sho uld
not use seat heating.
(D Note
To avoid damage to the heating elements in
the seats, do no t knee l on the se ats or place
heavy loads on a small area of the seat.
Basic settings
The climate control system basic settings are ac­
cessed in the Infotainment system.
"' Select: the I CARI funct ion button > (Car )* Sys-
tems
contro l button > AC .
Rea r seat setting s*
When this function is se lected, all settings for
the rear can be adjusted through the climate con­
trol system in the cockpit. The climate control
system settings cannot be adjusted in the rear
seat at the same time. This funct ion sw itches off
after a ce rtain per iod of t ime o r whe n one of the
contro ls in the coc kp it is pressed.
Automatic recirculation*
The sensitivity level of the automatic recircula­
t ion mode can be set at various levels from
Off to
Sen siti ve . Reci rculat ion mode is contro lled auto­
matically. If the windows fog up, p ress the
I@ FRO NT ! button.
Footwell temperature *
You can adjust the footwell temperature so that
i t is cooler or warme r.
Automat ic au xilia ry heater*
In vehicles with diesel engines*, the auxiliary
heater helps to warm the vehicle interior more

Driving
Driving
General information
Breaking in
A new vehicle must be broken in, and the break­ i n distance should be 1,000 mi les (1,500 km). Do
no t drive at speeds th at wi ll exceed
2/3 of the
maximum permitted engine speed
(R PM ) for the
fi rst 600 mi les (1,000 km) , and avoid f ull accel­
eration d uring this period . You may gradua lly
start increas ing the
RPM and the speed between
600 m iles (1,000 km) and 1,000 m iles (1,500
km).
During the fi rst hou rs of use, the engine has a
h igher internal friction than later on when all
mov ing parts have settled into p lace with each
other.
How the ve hicle is driven d uring the first 1,000
miles (1,500 km) also affects the engine quality.
Drive at moderate engine speeds after the initial
break-in per iod, part icu larly when running a cold
engine . This wi ll reduce eng ine wear and improve
the mi leage .
Do not dr ive at too
low of an engine speed (rpm).
Shift down if the engine stops r unning "smoot h­
ly". Extremely high eng ine s peeds are automati ­
cally reduced .
New tires
If yo ur vehicle is ru nning on new t ires, drive pa r­
t icularly c aref ul for the first 350 miles (5 00 kilo­
meters) after fi tting .
A WARNING
-
New tires tend to be s lippery and must also
be "broken-in". Be s ure to remember this dur­
ing the first 350 miles (500 kilometers).
Brake gently. Avo id following closely behind
other vehicles or other situations that might
require sudden, ha rd brak ing .
Avoid damaging the vehicle
When you are d riving on poo r roads, or over
curbs, steep ramps, etc., make ce rtain that low-
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lying parts such as spo ilers and exha ust system
parts do not bottom o ut and get damaged.
This is es peci ally true for veh icles with low-s lu ng
c h ass is (sports chass is)* and fully loaded
vehicles .
Warming up/cooling down
Applies to: S models
By warming up/coo ling down t he engine careful ­
l y, you can he lp reduce unnecessary strain on
yo ur vehicle when dr iving in a sporty style.
The engine speed is limited when the engine is cold -the full engine o utp ut is not availab le.
When the engine is at operat ing temperat ure,
the engine speed limitation moves to a higher
RPM range. The t ires also only reach t he ir full
r oad holding capab ility once they have wa rmed
u p .
You r vehicle a lso has an after-run cooling fea­
ture . However, cooling down is still important.
The eng ine and the brakes as well as the e xhaust
system and the tra nsmission become very ho t
whe n driving in a spo rty style . B efo re you shut
t h e ve hicle off, yo u should cool down the vehicle
by drivi ng a few miles at low s peeds with ligh t ac­
ce lera tion.
Driving through water on roads
Note the following to reduce the risk of vehicle
damage when driving through water, fo r example
on f looded roads:
- The water must not be any higher than the bot ­
tom of the vehicle body.
- Do not dr ive faster tha n wal king speed .
A WARNING
-
After driving thro ugh water or m ud, the effec­
tiveness o f the b rakes may be red uced due to
mo isture on the brake rotors and brake pads.
A few careful brake applications shou ld dry
off the brakes.
@ Note
- Vehicle components such as the engine,
transmiss ion, suspens ion or elect rical

co
co
.... N
" N .... 0 0 <..:l ' system can be severely damaged by driving
th rough water.
- Always swi tch the Sta rt/S top sys tem * off
when driving through wate r
r:!;> page 72.
@ Tips
-De te rmi ne the de pth befo re dr iv ing th ro ugh
w at er.
- Do no t stop the veh icle, dr ive i n reverse or
swi tch the eng ine off when dr iving t hrough
wa ter .
- K eep in mind that oncomin g ve hicl es m ay
crea te waves that raise the wate r level an d
make it too deep for your vehi cle to drive
th rough sa fely.
- Avo id d riving throu gh sal t wa ter, because
th is can ca use corros ion .
Economical and environmentally-friendly
driving
The amount of fue l consumption, the e nviron­
men tal impact and the wear to the engine ,
b rakes and ti res depends mostly on your dr iving
s tyle. W it h an anticipatory a nd econom ic dr iv ing
style , fu el consumpt ion can be reduced by ap ­
p roxima te ly 10 -15% . The following tips will help
you conse rve the environment and you r money at
the same time .
Anticipatory driving
A vehicle uses the mos t fu el when a ccele ra ting.
W hen you drive wi th an tic ipa tion, you do not
n eed to brake as often and so yo u ac celerate less .
When possib le, let your vehicle coast w ith a
gear
engaged ,
for example, when you notice that the
next tra ffic light is red. This produces an engine
braking effect, which helps to protect the brakes
and tires and reduces the emissions and fuel con­
sumpt io n to ze ro (fuel shut-off dur ing decelera ­
tion) .
Shift efficiently
An effective way to save f uel is to upshift earlier .
Staying in a gear too long uses fue l unnecessari­
l y .
Press down o n the acce lerator peda l s lowly and
avoid "k ic k -down".
D riving
Avoid full acceleration
Yo u should rarely travel at the maxi mum vehicle
speed. High speeds cause a disproport ionate ly
high increase i n fue l cons umption, emissions and
t raffic noise. S lowe r driving saves fue l.
Reduce idling time
The Sta rt-Stop system* helps to red uce the idling
t ime a utoma tically. In veh icles w ithout the S ta rt­
Stop system *, i t is eff icient to sw itch the engine
off when stopped at railroad crossings and long
r ed lights. Stopping the engine for 30-40 sec­
onds a lready saves more fuel than the amo unt of
extra fue l needed to restart the engine.
It ta kes a very long time in id le to warm the en­
gine up to operating temperature. Wear and
emissions are especially high in the warm- up
phase. Therefore, you sho uld begin driving im­
med iate ly after starting the engine. Avoid h igh
RPMs wh ile doing this .
Have maintenance performed regularly
By having maintenance pe rformed regu larly on
your vehicle, you can help to reduce fuel co n­
sumption before you even start to drive. The
maintenance condition of your vehicle not o nly
affects traffic safe ty a nd long-term val ue but al­
so impa cts
fuel consumption . A poorly main­
t ai ned engi ne ca n lead t o fuel co nsump tion that
is 1 0% hig he r th an no rmal.
Avoid short trips
The eng ine and exhaust cleaning system must
r each their optima l
operating temperature to ef­
fec tively reduce consu mption a nd emissions.
A cold engine uses a d isproportionately high
amount of fue l. The engine reac hes operat ing
temperat ure and cons umption normal izes on ly
af ter app roxima tely
2 .5 miles (4 km ).
Check the tire pressure
To save fuel, make sure the t ires are always in­
flated to the correct press ure
r:!;> page 220. The
fuel consumpt io n can increase by 5% if the pres ­
s ur e is on ly 0 .5 bar too low. Due to t he inc reased
r oll ing resistance, low tire p ressures w ill also .,..
67

Driving
lead to greater tire wear and will affect driving
behavior.
Do not drive on
winter tires year-round, as this
will consume up to 10% more fuel.
Eliminate unnecessary weight
Since every kilogram of extra
weight increases
fuel consumption, a quick inspection of the lug­
gage compartment may be worth it to avoid un­
necessary weight.
When not being used, a roof rack should be re­ moved to decrease the wind resistance of the ve­
hicle. You will save approximately 12% of your
fuel when at speeds from 62- 7 5 mph (100-120 km/h) .
Save energy
The engine drives the generator, which generates
electricity; the fuel consumption also increases
with the demand for electricity. Therefore, switch electrical equipment off when you no longer
need it. Examples of equipment that uses a lot of
energy are air blowers at a high setting, the rear
window defogger and seat heating*.
CD Note
Do not leave engine idling unattended after
starting.
If warning lights should come on to
indicate improper operation, they would go
unheeded. Extended idling also produces
heat, which could result in overheating or
other damage to the vehicle or other proper­
ty .
CD Note
- Have your vehicle maintained properly and
in accordance with the service recommenda­
tions in your Warranty
& Maintenance book ­
let . Lack of proper maintenance as well as
improper use of the vehicle will impair the
function of the emission control system and
could lead to damage.
- Do not alter or
remove any component of
the Emission Control System unless ap­
proved by the manufacturer.
- Do not alter or remove any device, such as
heat shields, switches, ignition wires,
68
valves, which are designed to protect your
vehicle's Emission Control System and other
important vehicle components.
(D Tips
The consumption estimates as published by
ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the
road, which will vary depending upon vehicle
load and speed, road and weather conditions,
trip length, etc.
Steering
Manual steering wheel position adjustment
Applies to: vehicles with manual steering wheel adjustment
The steering wheel position is adjustable up and
down and forward and back.
Fig. 76 Lever o n the stee ring col umn
.,. Pull the lever in the direction of the arrow
¢ ,&. .
.,. Bring the steering wheel into the desired posi­
tion .
.,. Push the lever against the steering column un­
til it is secure.
& WARNING
Improper use of steering wheel adjustment
and improper seating position can cause seri­
ous personal injury.
- Adjust the steering wheel column only when the vehicle is not moving to prevent loss of
vehicle control.
- Adjust the driver's seat or steering wheel so
that there is a minimum of 10 in (25 cm)
between your chest and the steering wheel -

Driving
Easy seat entry
Applies to: ve hicles w ith power steering whee l adj ustment
Easy seat entry makes it easier to enter and exit
the vehicle by adjusting the steering column au­
tomatically .
.-In the Infotainment system, select the ICARI
funct ion button > (C ar) * Systems control but­
ton
> Vehi cle settings > Seat s > Dr iver' s seat >
Easy seat ent ry > On .
When easy seat entry is switched on, the steering
column goes back up into the park position when
the ignition is switched off . After entering the ve­
h icle, the steering co lumn re turns to the stored
position once the ignition is sw itched on.
Starting and stopping
the engine
Starting the engine
The I START ENGINE STOP I button switches the
ignition on and starts the engine.
Fig. 78 Center console: STAR T ENGINE STOP button
Starting the engine
.- Press the brake pedal and move the se lector
lever into the P or N posit ion ¢
&_.
.-Press the I START ENGINE STOPI button. The
engine will start.
App lies to: ve hicles w ith diesel e ngi nes
.- It is possible t hat there will be a slight de lay
when starting the engine in colder tempera ­
tures. Therefore, you must hold the brake peda l
down until the engine starts. The indicator light
turns on while the engine is preheating
II .
70
Switching the ignition on /off
If you wo uld like to switch t he igni tion on w ith­
out star ting the engine, follow these s teps:
.- Press the
I START ENGINE STOP I button with­
out press ing the b rake pedal.
.- To switch the igni tion off, press the bu tton
aga in . The needle in the tachomete r moves into
the
O FF position.
The prewarming runs a utomat ica lly in diesel
vehicles when the igni tion is sw itched on .
Equ ipment that uses a lot of electricity is sw itch­
ed off tempo rarily when you start the engine.
If the engine does not start immediately, the
start ing procedure stops automat ically after a
short time. Repeat the starting procedure .
Start /Stop system*
Read the information in¢ page 72, Start-Stop
system.
A WARNING
To reduce the risk of poison ing, never allow
the eng ine to run in confined spaces.
(D Note
Avo id h igh engine speed, full throttle, and
heavy engine load if the engine has not
reached operat ing temperature yet. You could
damage the eng ine.
® For the sake of the environment
Do not let the eng ine run wh ile parked to
warm up. Beg in driving immed iately. Th is re­
d uces unnecessary emissions .
(D Tips
-Some noise after start ing the engine is nor­
ma l and is no cause for concern .
- If you leave the veh icle w it h the ignition
switched on, the ign ition w ill switch off af­
ter a certain amount of time. Make sure that electrical equipment such as the exterior
lights a re switched off.
-

co
co
.... N ,..._
N .... 0 0 <..:l ' Stopping the engine
~ Bring the vehicle to a full stop.
~ Move the selector lever to the P or N position.
~ Press the I START ENGINE STOPI ~page 70,
fig. 78 button.
Steering lock1
)
The steering locks when you turn the engine off
using the
I START ENGINE STOPI button and
open the driver's door. The locked steering helps
prevent vehicle theft.
Emergency off function*
If it is absolutely necessary, the engine can also
be turned off while driving in the R or D/S selec­
tor lever position at speeds below 6 mph (10 km/
h). To stop the engine, press and hold the
I START ENGINE STOPI button and also press the
brake pedal.
~ 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 may need to
use more force when braking or steering.
Because you cannot brake and steer as you
usually would, this could lead to accidents
and serious injuries.
- Always take the key with you whenever you
leave your vehicle. Otherwise, the engine
could be started or electrical equipment
such as the power windows could be operat­
ed. This 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 engine compartment after the engine is
switched off and there is a risk of damaging
the engine. For this reason, let the engine run
l ) This function is not available in all countr ies.
Driving
at idle for approximately two minutes before
shutting it off.
(D Tips
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 is already warm
and the engine compartment is also heated
by the sun's rays.
Messages
Turn off ignition before leaving car
This message appears and a warning tone sounds
if you open the driver's door when the ignition is
switched on.
Press brake pedal to start engine
This message appears if you do not press the brake pedal when starting the engine.
II Key not in vehicle?
This indicator light turns on and this message ap·
pears if the ignition key was removed from the
vehicle when the engine was running.
If the igni­
tion key is no longer in the vehicle, you cannot
switch on the ignition or start the engine once
you stop it. You also cannot lock the vehicle from
the outside.
Shift to P, otherwise vehicle can roll away.
Doors do not lock if lever is not in P.
This message appears for safety reasons if the
transmission is not in the P position when you
switch the ignition off. Move the selector lever to
the P position. Otherwise the vehicle is not pro­
tected from rolling and it cannot be locked.
II Key is not recognized. Hold back of key
against marked area. See owner's manual
If the indicator light turns on and this message
appears, there is a malfunction
~page 72. .,..
71