2018 AUDI A6 battery

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.

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0 0 <..:l ' Brake fluid
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Fig. 182 Eng ine compartment: cap on brake fluid reservoir
Observe the safety precautions ~.&. in Working
in the engine comportment on page 189.
Checking th e brake fluid level
• Read the brake fluid level on the brake fluid
reservo ir
<=) page 192, fig. 179. The brake fluid
level must be between the MIN and MAX mark­
ings ~,&. .
The brake fluid level is mon itored automat ically.
Changing the bra ke flu id
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Service
Facility .
A WARNING
-If the brake fluid level is be low the MIN
marking, it can impair the braking effect
and dr iving safety, which increase the risk of
an acc ident. Do not cont inue driv ing . See an
au thorized Audi deale r or autho rized Aud i
Service Facility for assist ance .
-If the brake f luid is o ld, bubbles may form
in the b rake system d uring heavy b raking.
T his would impair bra king perfo rman ce an d
driving safety, which increases the risk of an
accident.
- T o ensure the bra ke system functions cor­
rectly, only use brake fluids that comply
with VW standard 50114 or FMVSS-116 DOT 4 .
(D Note
-If the brake fluid level is above the MAX
mar king, brake fluid may leak out over the
Chec king and Filling
edge of the reservo ir and result in damage
to the vehicle.
- Do not get any b rake fl uid on the vehicle
paint, because it wi ll co rrode the paint .
Battery
General warnings about batteries
Because of the complex power supp ly, alt work
o n batter ies such as d isconnecting, replacing,
etc., sho uld
onl y be performed by an au tho riz ed
Audi dealer or au thori zed A udi Se rvice Fac ility
Q A .
The term "vehicle battery" refe rs to the 12 Volt
batte ry in you r vehicle.
Detail ed warnings for the vehicle battery :
Always wear eye protection .
&
Battery acid is highly corrosive. A lways
wear protective gloves and eye protection .
.
®
Fire, sparks, open flame and smoking are
forbidden .
A
A highly explosive mixture of gases can
form w hen cha rging bat ter ies.
®
Always keep children far away from bat-
tery electrolyte and the battery.
~
Always follow the ins tructio ns in the ope r-
ating manual.
A WARNING ~
A ll work on the battery or electrical system in
your vehicle can result in injuries, chemica l
bu rns, acc idents or burns. Because of this, all
work must be performed
only by an author­
i zed Audi dealer or authorized Audi Service
Fac ility .
A WARNING
-Ca lifo rnia Proposition 65 Warning:
- Battery posts, term inals and related acces­
sories contain le ad and lead com pou nds,
ch emi cals known to the Sta te of Californ ia
to cause cancer and reproductive prob lems.
Was h hands after handling.
197

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.
..,.

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" 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

Wheels
Production options we igh t
means the combined weight of
those installed regular production
options weighing over 5 lbs.
(2.3 kg) in excess of those stand­
ard items which they replace, not previously considered in curb
weight or accessory weight, in­
cluding heavy duty brakes, ride levelers, roof rack, heavy duty
battery, and special trim.
Radial pl y tir e
means a pneumatic tire in which
the ply cords that extend to the beads are laid at substantially
90 degrees to the centerline of
the tread.
R ecomm ended in flation
pressure
see ¢ page 204 , Cold tire infla­
tion pressure.
R einforced tire
means a tire designed to operate
at higher loads and at higher in­
flation pressures than the corre­
sponding standard tire . Rein ­
forced tires may be identified as
"XL" "xl" "EXTRA LOAD" or "RF" , , ,
on the sidewall.
206
Rim
means a metal support for a tire
or a tire and tube assembly upon
which the tire beads are seated.
Rim diam eter
means nominal diameter of the
bead seat . If you change your
wheel size, you will have to pur ­
chase new tires to match the new rim diameter .
Rim size designation
means rim diameter and width.
Rim width
means nomina l distance between
r im
flanges .
Sidewall
means that portion of a tire be­
tween the tread and bead .
Speed rating (letter code )
means the speed at which a tire is
designed to be driven for extend­
ed periods of time. The ratings range from 93 mph (150 km/h)
to
186 mph (298 km/h) ¢ table
on page 202 .
You may not find
this information on all tires be­
cause it is not required by law .
The speed rating letter code,
where applicable, is molded on
the tire sidewall and indicates the
...

a co .... N
" N .... 0 0 \,;J ' avoid scratches, move the scraper only in
one direction and not back and forth.
- N ever remove snow or ice from door win­
dows and mirrors using warm or hot water
because this could cause cracks to form .
- To avoid damage to the rear w indow de ­
fogger, do not apply any stickers on the heating wires on the inside of the window .
-Deco rati ve parts /trim
- Never use chrome care or cleaning prod-
ucts.
- Paint
-To red uce the risk of scratches, the vehicle
must be free of dirt and dus t before pol­
ishing or waxing .
- To preven t pa int damage, do not pol ish or
wax the ve hicle in direct sunlight.
- To red uce the risk of pa int damage, do not
polish away rust spots.
- Remove cosmetics and sunscreen immedi­
a tely- these could damage the pa int.
- Displa ys
- To avoid scratches, do not use dry cleaning
methods on displays .
-Controls
- Make sure that no fluids enter the con-
trols, because this could cause damage.
- Safet y belts
- Do not remove the safety belts to clean
t hem.
- Never clean safety belts or their compo­
nents chemically or with cor rosive fl uids
or so lvents and neve r allow sh arp obje cts
t o come into con ta ct w ith the sa fe ty belts.
Th is could cause damage to the belt web ­
bing .
- If the re is damage to the webbing, the
connections, the retractors or the b uckles,
have them replaced by an authorized Audi
dea ler or authorized Audi Service Facility.
- Te xtiles/artificial leather / Alcantara
- Never treat artific ial leather/ Alcantara
w ith leather care products, solvents, floor
polish, shoe polish, spot remove or similar
prod ucts .
- Have a specialist remove st ubborn stains
to prevent damage.
Care and cleaning
- Neve r use steam cleaners, brushes, hard
sponges, etc. when cleaning .
- Do not turn on the seat heating* to dry the
seat.
- Obje cts w ith sharp edges, such as zippe rs
or rivets on clothing or be lts, can cause
damage to the surface .
- Open hoo k and loop fasteners, for exam­
p le on clothing, can damage seat covers.
M ake sure hook and loop fasteners are
closed.
- Natural leather
- Never treat leather with solvents, floor
polish, shoe po lish, spot remover or sim i­
lar p roducts.
- Objects w ith sharp edges, such as zippers
or rivets on clothing or belts, can cause
damage to the surface.
- Never use steam cleaners, brushes, hard
sponges, etc. when cleaning.
- Do not turn on the seat heating* to dry the seat.
- To he lp prevent the leather from fad ing,
do not leave the vehicle in direct sun light
fo r long pe riods of time. If leav ing the ve­
h icle parked fo r long pe riods of time, you
should cover the le athe r to prote ct it from
d irec t sun light.
(D Tips
- Insects are easie r to remove from paint that
has been freshly waxed.
- Regular wax ing can prevent rust spots from
forming.
Placing your vehicle out
of service
If you would like to take your vehicle out of serv ­
ice for a longer period of time, contact an author­
ized Audi dea ler or authorized Audi Service Facili ­
ty. They will adv ise you of important measures,
such as corrosion protection, service and storage
procedures. Also follow the information about
the veh icle battery
r=;,page 197 .
225

a co .... N
" N .... 0 0 \.J ' Emergency situations
General
This chapter is intended for trained emergency
crews and working personnel who have the nec­
essary tools and equipment to perform these
operations.
Starting by pushing or
towing
~ Note
Vehicles with an automatic transmission can­
not be started by pushing or towing.
Starting with jumper
cables
If necessary, the engine can be started by con­
necting it to the battery of another vehicle .
If the engine should fail to start because of a dis­
charged or weak battery, the battery can be con­
nected to the battery of
another vehicle, using a
pair of jumper cables to start the engine.
Jumper cables
Use only jumper cables of sufficiently large cross
section
to carry the starter current safely. Refer
to the manufacturer's specifications.
Use only jumper cables with
insulated terminal
clamps which are distinctly marked :
plus(+) cable in most cases colored red
minus(-) cable
in most cases colored black.
A WARNING -
Batteries contain electricity, acid, and gas.
Any of these can cause very serious or fatal in­
jury. Follow the instructions below for safe
handling of your vehicle's battery .
-Always shield your eyes and avoid leaning
over the battery whenever possible.
-A dead battery can freeze at temperatures
around 32 °F (0 °C) . If the vehicle battery is
frozen, you must thaw it before connecting
the jump start cables. If you do not, this in-
Emergency situations
creases the risk of an explosion and chemi­
cal burns. After jump starting the vehicle,
drive to an authorized Audi dealer or author­ ized Audi Service Facility immediately to
have the vehicle battery checked.
- Do not allow battery acid to contact eyes or
skin . Flush any contacted area with water
immediately.
- Improper use of a booster battery to start a
vehicle may cause an explosion .
- Vehicle batteries generate explosive gases .
Keep sparks, flame and lighted cigarettes
away from batteries.
- Do not try to jump start any vehicle with a
low acid level in the battery .
- The voltage of the booster battery must also
have a 12-volt rating . The capacity (Ah) of
the booster battery should not be lower
than that of the discharged battery. Use of
batteries of different voltage or substantial­
ly different "Ah " rating may cause an explo­
sion and personal injury.
- Never charge a frozen battery. Gas trapped
in the ice may cause an explosion.
- Never charge or use a battery that has been
frozen. The battery case may have be weak­
ened.
- Use of batteries of different voltage or sub­
stantially different capacity (Ah) rating may
cause an explosion and injury. The capacity
(Ah) of the booster battery should not be
lower than that of the discharged battery.
- Before you check anything in the engine
compartment, always read and heed all
WARNINGS
c>page 189.
@ Note
- Applying a higher voltage booster battery
will cause expensive damage to sensitive
electronic components, such as control
units, relays, radio, etc.
- There must be no electrical contact between
the vehicles as otherwise current could al­
ready start to flow as soon as the positive
( + ) terminals are connected.
239