2018 AUDI A6 light

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.

Checking and Filling
(D Note
If the vehicle will be parked for long periods
of t ime , protect it against the co ld so that it
will not be destroyed by "freezing"
c;,page 198 .
Vehicle battery
The term "vehicle battery " refers to the 12 Volt
bat tery in your vehicle.
Not running the vehicle for long pe riods of
t ime
If you do not drive your vehicle for several days o r
weeks , electri cal equipment is gr adually scaled
back or switched off . This reduces energy use and
ensures the veh icle w ill be able to start after long
periods of
time r:::;, page 123 . Some conve nience
functions, s uch as interior lighting or power seat
adj ustment, may not be available under certa in
circumstances. These convenience f unct ions w ill
be ava ilab le aga in once you switch the ignition on
and start the engine .
E ven w hen electrica l equ ipme nt is swi tched off,
the equipment can still d rain the vehicle battery
if the vehicle is not driven for long periods of
time . Deep draining results in a chemical reaction
that destroys the inside of the vehicle battery .
The vehicle battery must be charged every month
t o reduce the risk of this happening
r:::;, page 198.
Contact an author ized Audi dealer or authorized
Aud i Serv ice Facility for more information .
Winter operati on
Cold weather places higher demands on the vehi­
cle battery. This results in reduced start ing abili ­
ty . Have the vehicle battery checked by an au­
thor ized Audi dealer or authorized Audi Service
Facility before the co ld time of year .
198
Charging the vehicle battery
Fig. 183 En g in e compartment : co nn ectors fo r a cha rger
a n d jum p start cab les
Requireme nt: only use chargers with a maximum
charging voltage of 30 amp s/14.8 Volts.
The
vehicle battery cab les remain connected.
... Read the wa rnings r:::;, _& in General warnings
about batteries on page 197
and r:::;, ,& .
... Switch off the ign it ion and all electrica l equip ­
ment .
... Open the hood c;,page 191 .
... Open the red cover on the pos itive terminal
¢fig. 183.
... Clamp the charger terminal clamps to the jump
start p ins accord ing to the instruct ions. (pin un­
der the red cover
= " positive ", pin with hexago­
nal head= "negat ive ").
... In sert t he power cable fo r th e cha rging dev ice
into the soc ket and switch t he devi ce on.
... At the end of the cha rging process, switch the
charger off and pull the power cable out of the
soc ket .
... Remove the charger terminal clamps.
... Close the red cover on the pos itive terminal.
... Close the hood c:;, page 191 .
A WARNING
-A highly explosive m ix ture of gases can form
when charg ing batte ries . Only cha rge the
veh icle b attery in well -ventila ted areas.
- A drained vehicle batte ry can freeze at tem­
pe ra tu res around 32
QF (0 QC). A fro zen o r
thawed vehicle battery must no t be charged
a nd must not be used anymore. If ice forms,
the battery housing can crack and battery
electrolyte can leak out, which increases the
risk of an explosion and chemical burns.
..,.

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

0 0)
-N ,.... N
-0
s ..
Wheels
Wheels and Tires
General information
.,,.Check your tires regularly for
damage (punctures, cuts, cracks
and bulges). Remove foreign ob­
jects from the tire tread.
.,,. If driving over curbs or similar
obstacles, drive slowly and ap­
proach the curb at an angle.
.,,.Have faulty tires or rims re­
placed immediately.
.,,.Protect your tires from oil,
grease and fuel.
.,,.Mark tires before removing
them so that the same running
direction can be maintained if
they are reinstalled.
.,,.Lay tires flat when storing and
store them in a cool, dry location
with as little exposure to light as
possible.
&_ WARNING -
-Never drive faster than the
maximum permitted speed
for your tires. This could cause the tires to heat up too much.
This increases the risk of an
accident because it can cause
the tire to burst.
-Always adapt your driving to the road and traffic condi-
Wheels
tions. Drive carefully and re­
duce your speed on icy or slip­
pery roads. Even winter tires
can lose traction on black ice .
@ Note
-Please note that summer and
winter tires are designed for
the conditions that are typical
in those seasons. Audi recom­
mends using winter tires dur­
ing the winter months. Low
temperatures significantly de­ crease the elasticity of summ­
er tires , which affects traction
and braking ability. If summer
tires are used in very cold
temperatures, cracks can form on the tread bars, resulting in
permanent tire damage that
can cause loud driving noise
and unbalanced tires.
-Burnished, polished or chromed rims must not be
used in winter driving condi­
tions. The surface of the rims does not have sufficient corro­
sion protection for this and
could be permanently dam­
aged by road salt or similar
substances.
201

a co ,...,
N
" N ,...,
0 0 \,;J ' Please note that the TPMS is not a substitute for
proper tire maintenance, and it is the driver's re­
sponsib ility to ma intain correct tire pressure,
even if under-inf lation has not reached the level
to trigger illum ination of the TPMS low tire pres­
sure telltale .
Your veh icle has also been equ ipped w ith a TPMS
malfunct ion indicator to indicate when the sys­
tem is not operating properly. The TPMS mal­
function indicator is combined w ith the low tire
pressure telltale. Whe n the system detects a
malfunct ion, the telltale will flash for approxi­
mately one minu te and then remain cont inuous ly
i llum inated. This sequence wi ll continue upon
subseq uen t veh icle start -ups as long as the ma l­
function exists.
When the malfunct ion i ndicator is ill uminated,
the system m ay not be ab le to detec t or sig nal
l ow tire press ure as intended. TPMS ma lfunctions
may occur for a var iety of reasons, incl uding the
installation of replacement or alternate tires or
wheels on the vehicle that prevent the TPMS
from functioning properly. Always check the TPMS malfunction telltale after rep lacing one or
more t ires or whee ls on your vehicle to ensu re
that t he replacement or alternate ti res and
wheels allow the TPMS to cont inue to func tion
p roperly.
If the tire pressure monitoring system
indicator appears
A ppl ies to: ve hicles with Tire Pressure Moni toring System in­
di cato r
The tire pressure indicator in the instrument
cluster informs you if the tire pressure is too low
or if there is a system malfunction .
Fig. 1 89 Instrument cl uste r: in dicator l ight w it h m essage
Wheels
Using the ABS sensors, the tire pressure monito r­
ing system compares the tire tread circumfer­
ence and vibration characterist ics of the ind ividu ­
al tires. If the pressure changes in one or more
t ires, th is is indicated in the instrument cluster
display with an indicator l ight
IE and a message .
If only o ne tire is affected, the location of tha t
t ir e will be indicated .
The tire pressures must be stored in the Infotain­ ment system again each time the pressures
change (switching between partial and full load
pressure) or afte r changing or replac ing a tire on
yo ur vehicle
Q page 220. The tire p ressure mon i­
tor ing system on ly mon itors the t ire pressure you
have stored. Refer to the t ire press ure label fo r
the recommended ti re pressure for yo ur vehicle
Q page 211, fig. 188 .
Tire tread c ircu mfe rence and vibr ation cha racter ­
istics can change and ca use a tire press ure warn­
ing if:
- the t ire pressure in one or more tires is too low
- the t ire has str uctural damage
- the t ire was replaced or the t ire pressure was
changed and it was not stored
Q page 220
- the spare tire* is i nstalled
Indicator light s
IE-toss of pressure in at least one tire Q & .
Check the tires and replace or repair if necessary .
Check/correct the pressures of all four tires and
store the pressu re again in the Infotainment sys­
tem
Q page 220.
m ( T ire Pressure Monitoring System) Ti re
pressure: System malfunction!.
If rn:m appears
after switching the ignition on or while driving
and the
IE indicator light in the instrument clus­
te r blinks for approx imately one minute and then
stays on, the re is system malf unct ion . Try to
store the co rrect t ire pressu res
Q page 220. If
t h e indicat or light does turn off or turns on agai n
af ter a sho rt pe riod o f time, d rive to an au thor­
ized Audi dea ler or authorized Audi Service Facili ­
ty immediate ly to have the ma lfunction correct-
ed.
~
219

a co .... N
" N .... 0 0 \,;J ' Care and cleaning
General information
Regu lar, proper ca re helps to maintain your ve hi­
cle's value. It can a lso be a requirement when
submitting warranty claims fo r cor rosion damage
and pa int defects on the body.
The necessary care prod ucts can be obtained
from an authorized Audi dea le r or authorized
Aud i Service Facility . R ead and follow the instruc ­
tions fo r use on the packaging.
A WARNING
-Us ing clea ning and ca re products inco rrectly
can be dangero us to your hea lth .
- Always store clean ing and ca re prod ucts out
of reach of chi ldren to reduce the r isk of po i­
son ing .
@ For the sake of the environment
- P refe rab ly purchase env ironmenta lly-friend­
l y cleaning prod ucts.
- Do not d ispose o f leftove r clea ning and ca re
p roducts with house hold t rash.
Car washes
T he longer that deposits remain on the vehicle,
the more the surface may be damaged. High
temperatures such as those caused by sun light
increase t he damag ing effect .
Before washing, rinse
off heavy deposits with
p lenty o f water.
S tu bbor n depos its s uch as bird droppi ngs or tree
sap are best removed with plenty of wate r and a
mic rofibe r cloth.
A lso , wash t he u nderside of yo ur vehicle once
road sa lt stops being used for the season .
Pressure washers
When washi ng your ve hicle w it h a pressu re wash­
e r, a lways fo llow the operating instr uctions pro­
v id ed wi th t he p ress ure washer. This is espe cially
i mportant in rega rd to the pressure and sp raying
d ista nce . Do not a im the spray directly at the
sea ls on the side w indows , doors, lids o r the sun -
Care and cleaning
roo f* or at tires, r ubber hoses, insulat ing mater i­
al, sensors* or camera lenses* . Keep a distance of
at least 16 in (40 cm) .
D o no t remove snow and ice wi th a pressure
washe r.
Never use cone noz zles o r high press ure no zzles .
The water temperature must not be above 140 °F
(60 °() .
Automatic car washes
Spray of f th e vehicle befo re wash ing .
Make s ure that the w in d ows and roo f* are closed
and the windsh ie ld wipers are
off . Follow instruc ­
t ions from the car wash ope rato r, es pecially if
t h ere are accesso ries attac hed to you r vehicle .
If possible, use car washes th at do not have
brushes .
Washing by hand
Clean the ve hicle starting from t he top and wor k­
i ng down using a soft sponge o r clea ning br ush .
U se solven t-free cleani ng p rod ucts.
Washing vehicles with matte finish paint by
hand
To avo id d amag ing the pa int w hen washi ng, fi rst
r emove dust and large p articl es from you r vehi ­
cl e. Insects, gre ase spo ts and fingerpr ints are
best removed w it h a s pecial cleaner for mat te
finish paint.
Apply t he p rodu ct using a microfiber cloth. To
avo id dam ag ing t he pa int surfa ce, do no t use too
much pressure.
Rinse t he ve hicle thoroug hly w ith wate r. T hen
cl ea n usi ng a neutra l shampoo an d a soft m icro­
f iber clo th .
Rinse the ve hicle thoroug hly aga in and let it air
dry. Remove a ny wate r residue using a chamois .
A WARNING
- Only wash the veh icle w hen the ig nition is
off an d follow t he in str uctions from the car
wash ope rato r to re duce the ris k of acci ­
dents .
-
221

Care and cl eaning
- To reduce the risk of cuts, protect yourself
from sharp metal components when wash­ ing the underbody or the inside of the wheel
housings .
- After washing the vehicle, the braking effect
may be delayed due to mo isture on the
brake rotors or ice in the winter . This in­
c reases the risk of an acc ident. The brakes
must be d ried first w ith a few careful b rake
applica tions.
@ Note
- If you wash the veh icle in an automatic car
wash, you m ust fold the exte rior m irrors i n
to reduce the risk of damage to the mirrors.
Power folding exte rior m irro rs* must o nly
be fo lded in and out using the powe r folding
funct ion .
- To reduce t he risk of paint damage , do no t
wash the vehi cle i n direct sunlig ht. - T
o red uce the risk of damage to the s urface,
do not use insect removing sponges, kitchen
sponges o r similar items .
- Matte finish painted vehicle components:
- To reduce the r isk of damage to the sur-
face, do not use pol ish ing agents or hard
wax.
- Never use protective wax. It can destroy
the matte finish effect .
- Do not place any stickers or magnetic
signs on vehicle parts painted with matte
f inish paint. The paint could be damaged
when the stickers or magnets a re re­
moved.
@ For the sake of the environment
Only wash the veh icle in facilities spec ially de­
s igned for that pu rpose. This will reduce the
r isk of dirty wate r contam inated with o il from
en te ring the sewe r system.
Cleaning and care information
W hen clea ning and ca ring for ind ividua l vehicle
components, refer to the fo llow ing tables. The
information contained there is simply recom­
mendations. For questions or for components t
h at are not listed, cons ult an autho rized Audi
dealer or author ized A udi Servi ce Fac ility. Also
fo llow the information found
in ¢,&. .
Exterior cl eanin g
Component Situation Solution
Wind shield wiper
Deposits soft cloth with glass cleaner,
¢ page 45
blades
Headli ght s/
Deposits Soft sponge with a mild soap so lution3
)
Tail light s
S en sors /
Deposits Sensors: soft cloth with solvent-free cleaning solution
cam era l ens es Camera lenses: soft cloth w ith alcohol -free cleaning solu-
tion
Snow/ice Hand brush/solvent-free de -icing spray
Wheels Road salt Water
Brake dust Acid-free special cleaning solution
E
xhaust tail pip es Road salt Water, clean ing solution su itab le for stainless stee l, if nee-
essary
D ecor ativ e part s/ Deposits Mild soap solution a), a cleaning solution suitable for stain-
trim less steel, if necessary
222

Care and cl eaning
Component Situation Solution
Tex tile s
Deposits adhering to Vacuum cleaner
art ifici al l eat her, the surface
A lca ntara Water -based deposits Absorbent cloth and mild soap solut
iona>
such as coffee, tea,
blood, etc.
O il-based deposits Apply a m ild soap solution
a), blot away the dissolved oil or
such as oil , make-up, dye, treat afterward with water, if necessary
etc.
Special deposits such Special stain remover, blot with absorbent material, treat
as ink, na il polish, la- afterward with mild soap solution, if necessary a)
tex paint, shoe pol-
ish, etc.
Natural leathe r Fresh stains Cotton cloth
with a mild soap so lutiona >
Water-based deposits Fresh stairns : absorbent cloth
such as coffee, tea, Dried sta ins : stain remover suitable for leather
blood, etc.
Oil -based deposits Fresh stairns : absorbent cloth and stain remover suitable
such as oil, make-up, for leather
etc. Dried stains : grease dissolving spray
Special deposits such Spot remover suitab le for leather
as ink, nai l polish, la -
tex paint, shoe pol-
ish, etc.
Care Regula rly apply cond it ion ing cream that p rotects from
lig ht and penetrates into the material. Use specia lly-co l-
ored conditioning cream, if necessary .
Carbon part s Deposits clean the same way as plastic parts
al Mild soap solution: maximum two tablespoons of neutral soap in 1 quart (1 liter) of water
_& WARNING
The windsh ie ld may not be treated wi th wa­
ter-repelling windshield coating agents. Un ­
favorable conditions such as wetness, dark ­
ness, or low sun can result in increased glare.
Wiper blade chatter is also possible.
@ Note
-Headlight s/tail light s
-Never clean headlights or tail lights with a
dry cloth or sponge.
- Do not use any cleaning product that con­
tains alcohol, because they could cause
cracks to form .
-Wheel s
224
- - Never use any paint polish or other abra­
sive materials.
- Damage to the protect ive layer on the
rims such as stone chips or scratches must
be repaired immediately.
- Cam era lens es
- Neve r use wa rm or hot water to remove
snow or ice from the came ra lens . This
could cause the lens to crack .
- Neve r use ab rasive cleaning m aterials or
a lcohol to clean the camera lens . This
could cause scratches and cracks .
-Door wind ow s
- Remove snow and ice on windows and ex-
terior mirrors with a plast ic scraper. To