2018 AUDI A6 ESP

a co .... N
" N .... 0 0 \,;J ' -Always make sure the forward-facing seat
has been designed and certified by its man­
ufacturer for use on a fr ont seat with a
passenger front and s ide airbag.
- Never put the forward-facing child restraint
up, against or v ery near the instrument pan­
el.
- Always move the front passenger seat to
the highest position in the up an d down ad­
justment range and move it back to the
rea rmost position in the seat's fore and aft
adjustment range, as fa r away from the air­
bag as possib le, before insta lling the for­
wa rd- facing child restr aint.
- Always ma ke sure that the safety bel t upper
anchor age is beh ind the child res train t and
not next to or in front o f the chi ld restrain t
so that the safety belt will be properly posi­
tioned.
- Make sure that the
PASSENGER AIR BAG
OFF
light comes on and stays on all the time
whenever the ignition is switched on .
A WARNING
Rearward-facing child restraints:
- A ch ild in a rearward-facing child safety seat
installed on the front passenger seat will be
seriously injured and can be killed if the
front airbag inflates - even with an Ad­
vanced Airbag System.
- The inflating a irbag w ill hit the child safety
seat or infant carrier with great force and
will smash the ch ild safety seat and chi ld
against the backrest, cen ter armrest, door
o r roof.
- Always be especially careful if you must in­
stall a rearward facing child safety seat on
the fron t passenger sea t in exceptional c ir­
c u ms tan ces.
- Make sure tha t the
PASSENGER AIR BAG
OFF
light comes on and s tays on all t he ti me
whenever the ignition is switched on.
- If the PASSENGER AIR BAG OFF light does
not come on and st ay on, immedia tely in­
st al l the re a r-fa cing ch ild saf ety se at in a
rear seat ing pos ition and have the airbag
system inspected by your Aud i dealer .
Child saf ety
Activating the convertible locking retractor
Use the convertible locking retractor to secure a
child restraint.
Always heed the c hild safety seat manufacturer's
i nstruct io ns when instal ling a child restra int i n
your vehicle. To activate the convertib le locking
r etractor:
.,. Place the child restraint on a seat, preferably
on the rear seat .
.,. Slowly pull the belt all the way out .
.,. Route it arou nd or through the child restra int
be lt
path~ ,&..
.,. Push the c hild safety sea t down with yo ur full
weigh t to ge t the safe ty belt really tight.
.,. Insert t he be lt tong ue into the b uckl e for tha t
seating position .
.,. Guide the safety be lt back into t he ret ractor un ­
til the be lt lies flat and sn ug on the c hild safety
seat .
.,. You s hou ld hea r a "cl icking" noise as the belt
w inds bac k into the ine rtia reel. Test the con ­
vert ib le lock ing retractor by pull ing on the bel t.
You s hou ld no lo nger be able to pull the belt
ou t of the re tra cto r. T he convertib le lo ckin g re ­
t ra cto r is now activated.
.,. Ma ke sure that t he red release bu tton is facing
away from the c hild rest raint so that it can be
unb uc kled quickly .
.,. Pull on the belt to make sure the safety belt is
properly t ight and fastened so that the seat
cannot move forward or sideways more t han
one inch (2 .5 cm) .
A WARNING
Using the wro ng ch ild rest raint o r an impro p­
e rly instal led child restr aint can cause se rious
person al injury or de ath in a crash.
- Always make sure th at t he s afety be lt re­
tr act or is locked when installing a c hild
safety sea t. An un locked safe ty be lt retra c­
tor cannot hold the ch ild safety seat in p lace
du ring norma l drivin g or in a c rash.
- Always buckle the child safety seat fi rm ly in
p lace even if a ch ild is not sitt ing in it . A
loose child safety seat can fly around dur ing
a sudden stop or in a crash.
~
179

Child safety
~Pu llon the tether strap hook so that the spring
catch of the hook engages.
~ Tighten the tether strap firmly follow ing the
child restraint manufacturer 's instruct ions.
Releasing the tether strap
~ Loosen the tension following the chi ld restraint
manufacturer's instructions .
~ Depress the spring catch on the hook and re­
lease it from the anchorage.
@ Note
If you leave the chi ld restraint with the tether
strap firm ly installed for several days, this
could leave a mark on the upholstery on the
seat cush ion and backrest in the area where
the tether strap was installed. The upholstery
would also be permanently stretched around
the tether strap . This applies especially to
leather seats.
Using tether straps on rearward-facing
child restraints
Current ly, few rear-facing chi ld restraint systems
come with a tether . Please read and heed the
child restraint system manufacturer 's instruc­
tions carefully to determine how to properly in­
stall the tether.
A WARNING
A child in a rearward-facing ch ild safety seat
installed on the front passenger seat w ill be
ser ious ly injured and can be killed if the front
airbag inflates
-even w ith an Adva nced Airbag
System.
- Th e inflati ng airbag will hit the child safety
seat or infant carrie r wi th great force and
wi ll smash the chi ld safety seat and child
against the backrest, center armrest, or
door .
-If you must install a rearward facing child
safety seat on the front passenger seat be­
cause of exceptiona l circumstances and the
PASSENGER AIR BAG OFF light does not
come on and stay on, immed iate ly install
the rear-fac ing ch ild safety seat in a rear
184
seating position and have the airbag system
inspected by your Audi dealer.
Additional information
Sources of information about child restraints and their use
There are a number of sources of additional in­
formation about chi ld re straint se lection, instal­
l ation and use :
NHTSA advises t hat the best child safety seat is
t h e one that fits your child and fits in your vehi­
cle, and that you wi ll use correct ly and consis ­
tently.
Try before you buy!
U.S. National Highway Traffic Safety Adminis­
tration
Tel.: 1-888-327-4236 (T TY: 1-800-424-9153)
http:/ /www .nhtsa.gov
http:/ /www .sa fercar.gov
National SAFE KIDS Campaign
Tel.: (202) 662-0600
http:/ /www .safekids.org
Safety BeltSafe U.S .A.
Tel.: (800) 745-SAFE (En glish)
Tel.: (800) 747-SANO (Spanish)
http:/ /www .carseat.org
Transport Canada Information Centre
Tel.: 1-800-333-0371 or call 1-6 13-998-86 16 if
you are in the Ottawa area
http://www.tc.gc.ca/ eng/roadsafety/menu . htm
Audi Customer Relations
Tel.: (800) 822-2834

a co .... N
" N .... 0 0 \,;J ' Checking and Filling Fuel
Gasoline grade
A pplies to: ve hicles with gasoline engines
The correct gasoline grade is stated on the inside
of the fuel filler door .
The vehicle is equipped with a catalytic converter
and must only be driven with
unleaded gasoline .
Audi recommends using TOP TIER Detergent Gas­
oline. Additiona l information on TOP TIER Deter­
gent Gasoline can be found on the official web­
site (www .topt iergas.com).
The individual gasoline grades are differentiated
by
octane ratings. T his value is given with (R +M)/
2 equating to AKI or in RON.
The following headings match the corresponding
sticker in the fuel fi ller door.
UNLEADED FUEL ONLY MIN. (R+M)/2 87
Regular/ MIN. RON 91 Regular
Use regu lar gasoline with minimum 87 AKI/
91 RON
i::> (@ .
The maximum engine power is only reached if
premium gasoline 91 AKI/ 95 RON is used.
UNLEADED FUEL ONLY PREMIUM MIN . (R
+M)/2 91 / SUPER MIN. RON 95
Using premium gasoline with minimum 91 AKI/
95 RON is recommended.
If premium gasoline is not available, you can also
use regular gasoline 87 AKI/ 91 RON . However
this does reduce the engine power slightly.
({D) Note
-Fill in g the tank just one time with leaded
fuel or other metallic additives will cause
permanent deterioration to the catalytic
converter function.
- When gasoline with an octane rating that is
too low is used, high speeds or heavy engine
load can lead to eng ine damage.
Checking and Filling
(D Tips
The vehicle may be filled with fuel that has a
higher octane rating than what is required by
the engine .
Blended gasoline
Applies to : vehicles wi th gasoli ne e ngi ne
Use of gasoline containing alcohol or MTBE
(methyl tertiary butyl ether)
You may use unleaded gasoline blended with al ­
coho l or MTBE (commonly referred to as oxygen­
ates) if the blended mixture meets the following
criteria:
Blend of gasoline methanol (wood alcohol or
methyl alcohol)
-Anti-knock index must be 87 AKI or higher.
- Blend must contain no more than
3% metha-
nol.
- Blend must contain more than
2% co-solvents.
Blend of gasoline and ethanol (grain alcohol or
ethyl alcohol)
-Anti-knock index must be 87 AKI or higher.
- Blend must not conta in more than
15% etha-
nol.
Blend of gasoline and MTBE
- Anti -knock index must be 87 AKI or higher.
- Blend must not contain more than
15% MTBE.
Seasonally adjusted gasoline
Many gasoline grades are blended to perform es­
pecially well for winter or summer dr iving . Dur­
ing seasonal change-over, we suggest that you
fill up at busy gas stat ions where the seasonal
adjustment is more likely to be made in time .
@ Note
-Methanol fuels which do not meet these re­
quirements may cause corrosion and dam­
age to plast ic and rubbe r components in the
fuel system.
- Do not u se fuels that fail to meet the speci-
fied criteria in this chapter.
.,.
185

Checking and Filling
-If you a re unable to determine whether or
not a particular fuel blend meets the speci­
fications, ask your service station or its fuel
supplier.
- Do not use fuel for which the contents can­
not be identified.
- Fuel system damage and performance prob­
lems resulting from the use of fuels differ­
ent from those specified a re not the respon­
sibility of Audi and are not covered under
the New Vehicle or the Emission Control System Warranties.
- If you experience a loss of fuel economy or
driveability and performance problems due
to the use of one of these fuel blends , we
recommend that you switch to unblended
fuel.
Gasoline additives
A major concern among many auto manufactur­
ers is carbon deposit build-up caused by the type
of gasoline you use.
Although gasoline grades differ from one manu­
facturer to another, they have certain things in
common. All gasoline grades contain substances
that can cause deposits to collect on vital engin e
parts, such as fuel injectors and intake valves. Al­
though most gasoline brands include additives to keep engine and fuel systems clean, they are not
equally effective .
Audi recommends using TOP TI ER Dete rgent Gas­
oline. For more information on TOP TIER Deter­
gent Gasoline , please go to the official website
(www .toptiergas .com) .
After an extended per iod of us ing inadequate
fuels, carbon deposit build-ups can rob your
en­
gine of peak performance.
(D Note
Damage or malfunction due to poor fuel qual­
ity is not covered by the Audi New Vehicle Limited Warranty.
186
Refueling
Fueling procedure
Fig. 172 R ig ht re ar sid e o f th e ve hicle: o penin g th e fu el
filler door
Fig. 173 F uel fille r doo r with at tached fuel cap
The fuel filler door is unlocked or locked by the
central locking system.
.,. Press on the left side of the fuel filler door to
open
~ fig. 172.
.,. Unscrew the tank cap counterclockwise .
.,. Place the cap from above on the open fuel filler
door
~ fig.173.
.,. Insert the fuel pump nozzle all the way into the
fuel filler neck .
.,. Begin fueling. Once the fuel pump nozzle turns
off the first time, the fuel tank is full. Do not
continue fueling, or else the expansion space in
the tank will be filled with fuel.
.,. After the fuel pump has switched off, wait five
seconds before removing it to allow the rest of
the fuel to finish dripping into the fue l tank.
.,. Turn the fuel cap clockwise until you hear it
lock.
.,. Close the fuel filler door and then press on the
left side until it latches.
The correct fuel type for your vehicle can be
found on a label located on the inside of the fuel
.,.

a co .... N
" N .... 0 0 \.J ' filler door . For additional info rmation on fuel,
see
r=;, page 185.
F or the tank capac ity in yo ur vehicle , refer to t he
Technical Data
r=;, page 245 .
To reduce the r isk of fuel leak ing out or vapors
escap ing, make su re t hat the fuel ta nk is closed
correct ly. O therwise
t he-¢..ij indicator light will
turn on.
I f the central lock ing system malfunct ions, the
fuel filler door may emergency release
r=;, page 188.
_& WARNING
An improper f uel ing p rocedure and improper
hand ling of fue l can lead to exp losions, fires,
severe b urns and other injuries .
- Do not smoke and keep away from open
flames .
- T he ig nition m ust be switched off whe n re ­
f ueling .
- Cell pho nes, radio devices and o ther radio
equipment s hou ld always be switched off
w hen refueling . Electromagnetic rays cou ld
cause sparks and start a fire .
- If you do not insert the fuel pump nozzle a ll
the way into the filler tube, then fue l can
leak out. Spilled fue l can ignite and start a
fire.
- Never get into the vehicle when refueling. If
there is an exceptional s ituation where the
vehicle must be entered, close the door and
touch a metal surface before touching the
fuel pump nozzle aga in . This will reduce the
r isk of electrostat ic d ischarge that can cause
flying sparks . Sparks can start a fire when
ref uel ing .
_& WARNING
We recommend that you do not t ransport any
fue l co nta iners in t he veh icle. Fue l cou ld leak
out of the containe r and ignite, espe cially dur ­
ing an accident. This can cause exp losions,
fires and injuries .
- If you must transport fuel in a fue l contain ­
er, please note the following:
Ch eck ing and F illing
- Always place a fue l container on the
ground before filling . Never fill the fue l
container with fuel while it is in or on the
vehicle . Electrostatic charge can occur
wh ile refueling and the fuel vapors could
i gnite .
- For fuel containers made of metal, the fuel p ump nozzle must always maintai n
contact with the conta iner to reduce the
r isk of s tat ic charge.
- Insert the fuel pump nozz le as far as pos­
s ible into the fi lle r opening w hile refuel­
ing .
-Fo llow lega l requ irements when using,
stor ing and t ransporti ng f uel conta iners.
- Make su re that the fuel containe r meets
t h e in dust ry standa rds, for example ANS I
o r ASTM F8S2 -86.
@ Note
- Remove fuel that has overflowed onto any
veh icle components immediately to reduce
the risk of damage to the vehicle.
- Never drive unt il the fuel
tank is completely
empty. The irregula r supply of fue l that re­
sults from that can cause eng ine misfi res.
U nc ombus ted fuel will ente r th e exhaus t
system and increase the risk of damage to
the cata lytic converter.
@ For the sake of the environment
Do not overfill the fuel tank, otherwise f uel
ca n leak o ut w hen the ve hicle is warming up.
(D Tips
The fuel filler doo r on your ve hicle does not
l ock if you lock t he ve hicle from t he i nside us­
i ng t he centra l loc king switc h.
18 7

Checking and Filling
Coolant Freeze protec-
additi ve tion
Warm min. 40% min. -13 °F
regions max. 45% (-25 °C)
Cold min. 50% max. -40
°F
regions max. 55% (-40 °C)
([) Note
- Before the start of winter, have an author­
ized Audi dealer or authorized Audi Service
Facility check if the coolant additive in your
vehicle matches the percentage appropriate
for the climate. This is especially important
when driving in colder climates.
- If the appropriate coolant additive is not
available in an emergency, do not add any
other additive. You could damage the en­
gine. If this happens, only use water and re­ store the correct mixture ratio with the
spec ified coolant additive as soon as possi­
ble.
- Only refill with new coo lant.
- Radiator sealant must not be mixed w ith
the coo lant .
Adding coolant
F ig. 181 Engine compartment: coolant expans ion tank
cover
Observe the safety precautions~ page 189,
Working in the engine compartment .
Checking the engine coolant level
• Park the vehicle on a leve l surface .
• Switch the ignition off.
• Read the coolan t leve l on the coo la nt expansion
tank~ page 192, fig . 179. The coolant level
must be between the MIN and MAX markings
196
when the engine in cold. When the engine is
warm it can be slightly above the MAX marking .
Adding coolant Requirement: there must be a residual amount of
coolan t in the expansion tan k
~CD -
• Let the engine cool down .
• Place a cloth over the coolant expansion tank
cap and unscrew the cap counterclockw ise
~ & -
... Add coo lant m ixed in the cor rect ratio
~ page 195 up to the MAX marking.
• Make sure that the fluid level remains stab le .
Add more coolant if necessary .
• Close the cap securely.
Coolant loss usually ind icates there is a leak . Im­
mediate ly drive your vehicle to an authorized
Audi dealer or authorized Audi Service Fac ility
and have the cooling system inspected. If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheat ing
and being pushed out of the cooling system .
A WARNING
- The cooling system is under pressure. Do
not open the coo lant expansion ta nk cap
when the engine is hot. This increases the
risk o f bur ns.
- The coolan t addi tive and the coolant can be
dangerous to your health. For t his reason,
keep the coolant in the original container
and away from children. There is a risk of
poisoning.
- When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which
increases the risk of injury.
(D Note
Do not add coolant if the expansion tank is
empty. A ir cou ld enter the cooling system and
damage the engine. If this is the case, do not
continue driving. See an authorized Audi deal­
er or authorized Audi Serv ice Facility for assis­
tance.

a co .... N
" N .... 0 0 \,;J ' Contact an authorized Audi dealer or au­
thorized Aud i Serv ice Facility for more infor­
mation.
- Do not connect or disconnect the charging
cable while charg ing because this increases
the risk of an explosion.
(D Tips
-Only charge the vehicle battery through the
connections in the engine compartment.
- Read all of the manufacturer's instructions
for the charger before charging the ve hicle
battery.
Windshield washer system
F ig. 184 Eng ine co mpartment: washer flu id reservoir cap
M N ~ N
"' a, a,
The winds hield washer reservoir O contains the
cleaning solution for the windshield and the
headlight washer system*
c::;,page 192 , fig . 179.
The reservoir capacity can be found in
c::;, page 245 .
To reduce the risk of lime sca le deposits on the
spray nozzles, use clean water w ith low amounts
of calc ium . Always add window cleaner to the wa­
ter . When the outs ide temperatures are cold, an
anti-freez ing agent should be added to the water
so that it does not freeze.
0 Note
- The concentration of anti-freezing agent
must be adjusted to the vehicle operating
cond itions in the respect ive climate. A con­
centration that is too high can lead to vehi­
cl e damage.
Checking and Filling
- Never add radiato r anti -freeze or other addi­
tives to the washer fluid .
- Do not use a glass cleaner that contains
paint solvents, because this could damage
the paint.
Service interval display
The service interval display detects when your ve ­
hicle is due for service .
The service interval display works in two stages:
-Inspection or oil change reminder : after a cer-
tain distance driven, a message appears in the
instrument cluster display each time the igni­
tion is switched on or off. The remaining dis­
tance or time is disp layed briefly.
-Inspection or oil change due: if your vehicle
has reached an inspection or oil change interval
or both intervals at the same time, the mes­
sage
Inspection due! or Oil change due! or Oil
change and inspection due!
appears briefly af­
ter switching the ignition on/off .
Checking service intervals
You can check the remaining distance or time un ­
til the next oi l change or next inspection in the
Car menu. To do this, select: the
I CAR I function
button
> (Car)* Systems control button > Service
& control > Service intervals .
Resetting the indicator
An authorized Audi dea ler or authorized Audi
Service Facility w ill reset the service interval dis­
play after perform ing service .
If you have changed the oi l yourse lf, you must re ­
set the oil change interval.
To r eset the indicat or, select: the
I CARI function
button
> (Car)* Systems control button > Service
& control > Service intervals . Turn the control
knob downward to
Reset oil change interval and
press the control knob.
@ Note
- Only reset the oi l change indicator if the oi l
was changed.
199

Checking and Filling
- Following the service intervals is critical to
maintain ing the service life an d va lue of
your ve hicle, especially t he engine . Even if
the m ileage on the vehicle is low, do not ex­
ceed the time for the next service.
- Calculating the t ime to t he next oi l change
i s interrupted w hen the veh icle battery is
disconnected¢
page 225.
200