2018 AUDI A6 Owners Manual

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0 0 <..:l ' Tether anchors and tether straps
Fig. 170 Te the r ancho rs: recess flaps be hind the re ar sea t­
backs
The tether anchors for the rear seating positions
are located in recesses in the rear window shelf
¢ fig . 170
A tether is a stra ight or V-shaped strap that at­
taches the top part of a child restra int to special
anchorage points in the vehicle.
The purpose of the tether is to red uce the for­
ward movement of the child res tra int in a crash,
in order to help red uce the risk of head injury
that could be caused by striking the veh icle inte­
rio r.
F orward facing ch ild res traints manufactured af ­
ter September 1, 1999, are required by U.S. fed­
eral regulations to comply with new child head
movement performance requirements. These
new perfo rmance r equirements make a tether
necessary on most new child safety seats .
A WARNING
Improper installation of child restraints will
increase the risk of injury and death in a
crash .
-Always follow the instructions provided by
the manufacturer of the child restra int you
intend to install in your Aud i.
-Improper use of child restra int anchors (in­
cluding tether anchors) can lead to injury in
a collision . The anchors are designed to
withstand only those lo ads imposed by cor­
rectly fitted child restra ints.
-Never mount two chi ld restraint systems on
one LATCH lower a nchor po int.
Ch ild s afe ty
-Never attach two child restraint systems to
one tether strap or tether anchorage.
-Never attach a tether strap to a tie-down
hook in the luggage compartment.
-Never use child restraint tether anchorages
to secure safety be lts or other kinds of occu­
pant restraints.
-Never secure or attach any luggage or other
items to the LATCH lower anchorages or to
the tether anchors.
-If you must install a rearward facing child
safety seat on the front passenger seat be­
cause of exceptional circumstances and the
PAS SENGER AIR BAG OFF light does not
come on and stay on, immediately install
the rear-facing child safety seat in a rear seating position and have the a irbag system
inspected by your Audi dealer.
Installing the upper tether strap on the
anchorage
Fig . 1 7 1 Tet her strap : p roper rout ing and mount ing
Installing the tether strap
... Re lease or dep loy t he tether strap on the ch ild
restraint according to the ch ild rest raint manu­
facture r's ins tructions .
... Guide the upper te ther strap under the rea r
head
restraint ¢ fig. 171 (raise the head re ­
straint if necessary) . For child restraints w ith V­
tether straps, always make sure that the head
restraint guide rods do not in terfere with any
part of the top tether strap .
... Tilt the recess flap up to expose the anchor
bracket .
.,. Attach the tether st rap anchorage hook into
the opening of the tether a ncho rage.
183

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

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" 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
Fuel filler door emergency release
If the central locking system is faulty, the fuel
filler door can be unlocked manually.
Fig . 17 4 Right side trim in the luggage co mpartme nt: re­
mov ing the tr im
F ig. 175 Luggage compa rtment: fuel fille r doo r eme rgency
r elease
The emergency opening mechanism is located
behind the right side trim pane l in the luggage
compartment.
Removing th e side trim
• To remove the right side trim, first remove the
retaine r from the mounts @¢
fig. 174.
• Turn both locking mechanisms 90° to the left
us ing a coin or a similar object and remove the
locking mechanisms.
• Tilt the reta iner upward and pull the trim out .
Lay the trim down on its side, because there is
an electrical w ire for the socket* on the back .
Fuel filler d oor em ergenc y relea se
• Loosen the strap from its bracket and pu ll on it
¢ fig. 175 ¢(D. The filler door is released.
• Presson the left side of the fuel f iller door to
open it
¢page 186, fig. 172.
188
(D Note
Only pu ll on the loop until you feel resistance .
You will not hear it re lease . Otherwise you
could damage the emergency release mecha­ nism.
Emissions control
system
Cat alytic converter
The vehicle may only be driven w ith unleaded
gaso line , otherwise the catalytic converte r will be
dest royed .
Never dr ive until the tank is completely empty.
The irregular supply of fuel that results from that can cause engine misfires. Uncombusted fuel will
enter the exhaust system, which can cause over­
heating and damage to the catalytic converter .
&_ WARNING
The temperature of the exhaust system is
h igh, both when driving and a fter stopp ing
the engine.
-
- Never tou ch the exhaust tail pipes once they
have become hot. This cou ld resu lt in burns.
- Do not park your vehicle over flammable
materials s uch as grass or leaves because
the high temperature of the emissions con­
trol system could start a fire .
- Do not apply unde rbody protectant in the
exhaust system area, beca use this increases
the risk of fire.

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0 0 <..:l ' On Board Diagnostic
System (OBD)
The On-Board Diagnostic System monitors the
engine and transmission components that influ­
ence emissions.
F ig . 176 Footwell o n le ft s ide of th e vehicle: con nectio n
port fo r th e On -Board Diagnostic System (OBD)
On -Board Diagnostic S ystem
Eng ine data can be read out at the On-Board Di ­
agnostic System connection port using a special
testing device
r::;, fig . 176.
Ind icat or light
If thE' ¢..ift indicator light blinks or turns on, there
is a malfunction that is causing poor emissions
quality and that could damage the catalytic con­
verter .
Drive s lowly to an authorized Audi dealer or au­
thor ized Audi Service Facility to have the mal­
function corrected .
The indicator light can also turn on if the fuel fill­
er cap is not closed correct ly
c::;, page 186.
A WARNING
Incorrect use of the connection port for the
On-Board Diagnostic System can cause mal­
functions, which can then result in acc idents
and ser io us injuries .
- Only allow an author ized Audi dealer or au­
thorized Aud i Serv ice Facility to read out the
engine data.
-
Chec king and Filling
Engine compartment
Working in the engine compartment
Special care is required if you are working in the
engine compartment
For wo rk in the engine com part ment , such a s
che cking and filling fluids, there i s a ris k of i n­
jur y, sc alding, a cci dent s, and b urn s. For t his
r easo n, foll ow all the w arnings and g en e ral
s afe ty pre ca ution s pro vided in the f ollowing
in ­
formati on. Th e engine compartm ent i s a dan­
ge rou s area in the vehicle .
r::;, &..
A WARNING
-Turn the engine off.
- Sw itch the ignition off.
- Set the parking brake.
- Select the "P" selector lever position .
- Let the eng ine cool down .
- Never open the hood when there is steam or
coolant escaping from the engine compart­ ment, because there is a risk that you could
be burned . Wait unt il no steam or coolant is
escaping.
- Keep children away from the eng ine com­
partment .
- Never sp ill fluids on a hot engine. These flu­
ids (such as the freeze protection contained in the coolant) can catch fire.
- Avoid short c ircuits in the electrical system .
- When working in the engine compartment,
remember that the radiator fan can switch
on even if the ignition is switched off, which increases the ris k of personal injury .
- Never open the cap on the coolant expan­
sion tank when the engine is warm . The
coo ling system is under pressure.
-To protect your face, hands, and arms from hot steam or coolant, cover the cap with a
large cloth when opening .
- Do not remove the eng ine cover under any
circumstances . This increases the risk of
bu rns .
- If tests need to be performed with the en­
g ine runn ing, there is add it iona l danger due
to mov ing components (such as the ribbed
~
1 8 9

Checking and Filling
belt, alternator and radiator fan) and from
the high-voltage ignition system.
- Do not under any circumstances give gas in­
advertently (for example, by hand from the
engine compartment) if the vehicle is sta­
tionary but the engine is running and a gear
is engaged. Otherwise, the vehicle will start
to move immediately and this could result
in an accident.
- Pay attention to the following warnings list­
ed when work on the fuel system or on the
electrical equipment is required.
- Do not smoke.
- Never work near open flames.
- Always have a working fire extinguisher
nearby.
- All work on the battery or electrical system
in your vehicle can result in injuries, chemi­
cal burns, accidents or burns. Because of
this, all work must be performed
only by an
authorized Audi dealer or authorized Audi
Service Facility.
- To reduce the risk of electric shock and in­
jury, never touch the following components when the engine is running or is being start­
ed:
- Ignition cable
- Other components in the electronic high-
voltage ignition system
- If you must check or perform work on the
engine while it is running:
- Set the parking brake and place the selec­ tor lever in the P (park) position first.
- Always proceed with extreme caution so that clothing, jewelry or long hair do not
become caught in the radiator fan, fan
belt or other moving components or do
not come into contact with hot compo­
nents. Tie back long hair before beginning
work and do not wear clothing that can
hang down into the engine.
- Limit your exposure to exhaust and chemi­
cals to as short a time as
possible~ &..
A WARNING
California Proposition 6S Warning:
190
-Engine exhaust, some of its constituents,
and certain vehicle components contain or
emit chemicals known to the State of Cali­
fornia to cause cancer and birth defects and
reproductive harm . In addition, certain flu­
ids contained in vehicles and certain prod­
ucts of component wear contain or emit
chemicals known to the State of California
to cause cancer and birth defects or other
reproductive harm.
- Battery posts, terminals and related acces­
sories contain lead and lead compounds,
chemicals known to the State of California
to cause cancer and reproductive harms.
Wash hands after handling.
@ Note
When filling fluids, be sure not to mix the flu­
ids up. Otherwise severe malfunctions and en­
gine damage will occur.
@ For the sake of the environment
You should regularly check the ground under
your vehicle in order to detect leaks quickly. If there are visible spots from oil or other fluids, bring your vehicle to an authorized Audi deal­
er or authorized Audi Service Facility to be
checked.