2014 AUDI A6 hood open

110 Automatic Tran sm iss ion
multitronic transmission : Your vehicle is
equipped with
hill hold assist allowing you to
start while on an incline. The system is acti­
vated when the brake pedal is pressed down
and held
f o r a few s econds . The brake pres­
sure will hold for
a moment after the brake
pedal loosens to prevent the veh icle from roll­
ing backwards whi le starting up .
A WARNING
- The veh icle can also roll when the engine
is stopped.
- Unintended veh icle movement can cause
serious injury .
- Never leave your vehicle with the eng ine
running wh ile in gea r. If you must leave
yo ur vehicle when the engine is running,
act ivate the park ing brake and move the
selector lever to P .
- Power is st ill transmitted to the whee ls
when the engine is running at idle . To
prevent the vehicle from "creeping", you
must keep your foot on the brake when
the engine is running and the selector
lever is in D/S or R or "tiptronic" mode is
selected.
- Do not press the accelerator pedal when
changing the selector lever pos ition
wh ile the vehicle is stat io nary and the
engine is running .
- Never shift into R or P wh ile driving .
- Before driv ing down a steep slope, re-
duce your speed and shift into a lower
gear with "tiptronic" .
- Do not ride the brakes or press the brake
pedal too often or too long when dr iving
down a hill. Constant braking causes the
brakes to overheat and substant ially re­
duces b raking performance, inc reases
braking distance or causes comp lete fail­
ure of the brake system.
- T o prevent the veh icle from rolling back
when stoppi ng on incl ines, always hold it
in place with the brake peda l or parking
brake.
- Never hold the veh icle on an incl ine with
a slipping clutch. The clutch opens auto ­
matically when it becomes too hot from the overload. An indicato
r lamp
[O] illu­
minates and a driver message appears
¢ page 112 when the clutch is overload­
ed.
- If the engine must remain running, never
have any driving posit io n engaged when
checking under the hood . Make sure the
selector lever has securely engaged and is locked in P with the park ing brake set
¢ page 224. O therwise, any increase in
engine speed m ay se t the vehicle in mo­
tion, even with the parking brake ap­ plied .
(D Note
-S tronic- and tiptronic transmission :
When stopping on an incl ine , do not try
to hold the vehicle in place by pressing
the acce lerator pedal while a driving gear
is se lected. This can cause the transmis­
sion to overheat and can damage it. Acti­
vate the parking brake or press the brake
peda l to prevent the vehicle from roll ing.
- S tronic- and tiptronic transmission : A l­
lowing the vehicle to ro ll when the en­
gine is stopped and the selector lever is
in N will damage the transmission be­
cause it is not l ubricated unde r those cir­
cumstances.
{!) Tips
For safety reasons, the parking brake is re­
l eased automatically only when the d riv­
er's safety belt is engaged in the buckle.
Hill descent control
Applies to vehicles: with multitro nic/5 tronic/t iptronic
The hill descent control system assists the
driver when driving down declines .
Hill descent control is activated when these­
lector lever is in D/S and you press the brake
pedal. The transmission automatically selects
a gear that is sui table fo r the incline. H ill de­
scent contro l tries to ma inta in the speed ach-
ieved at the time of b raking, with in physica l .,.

1 7 0 Airbag syst em
larger, unclosed openings in the door
panel.
- Never drive w ith inter ior door trim pan­
e ls removed.
- Never drive when parts have been re­ moved from the ins ide doo r panel and
the openings they leave have not been p roperly closed.
- Never d rive when loudspeakers in the
doors have bee n removed unless the
spea ker holes have been properly
closed.
-Always ma ke certa in that openings are
covered or fi lled if additional speakers
or other equ ipment is installed in the
inside door panels.
- Always have work on the doors done by an authorized Audi dealer or qualified
workshop .
Side curtain airbags
Description of side curtain airbags
The side curtain airbag system can provide
supplemental protection to properly restrain ­
ed occupants.
Fi g. 1 65 Side curtain a irbags, d river 's side: s ide curta in
a ir bag location
The s ide curtain airbags are located o n both
sides of the interior above the front and rea r
side windows
c:.> fig. 165 . They are ident ified
by the word "AIRBAG" on the windshield
frame and the center roof p illar.
The s ide curtain airbag system supp lements
the safety belts and can help to reduce the risk of injury for occupants' heads and upper
torso o n the side of the vehicle tha t is struc k in a side collision
. The side curtain airbag in­
flates in side impacts and only when the vehi­ cle acceleration registered by the control un it
is h igh enough . If this rate is below the refer­
ence value programmed into the control unit,
the side airbags will not be triggered, even
t h ough the car may be bad ly damaged as a re­
su lt of the co llision .
It is not possib le to de­
fine an airbag triggering range that will cover every possib le ang le of impact, s ince the cir­
cumstances will vary cons iderably between
one collision and another. Important factors
include, for example, the nature (hard or soft)
of the impacting object, the angle of impact,
vehicle speed, etc .
c:,, page 171, How side cur­
tain airbags work .
Aside from their normal safety function, safe­
ty belts work to help keep the driver or front
passenger in position in the event of a colli­
sion so that the side curtain airbags can pro­
vide protection .
The airbag system is not a substit ute for your
safety belt . Rather, it is part of the overall oc­
cupant restraint system in your vehicle. Al­
ways remember that the a irbag system can
only help to protect you if you are wear ing
you r saf ety belt and wearing it properly . This
is anothe r reason why yo u should always wear
yo ur safe ty belts, no t just because the law re ­
quires yo u to do soc:.>
page 138, General
notes .
It is important to remember that w hile the
s ide cur tain airbag system is designed to help
reduce the likelihood of ser ious injur ies, other
injuries, for example, swelling, bruising, fric­
tion burns and minor abrasions can also be as­
sociated w ith these airbags upon dep loyment.
Remember too, these airbags will deploy only
once and only in certain kinds of accidents -
your safety belts are always there to offer pro ­
tection.
The side curtain airbag sy stem basic ally
cons ists of:
- The electronic control module and external
side impact sensors ..,..

192 Audi pre sense
Audi pre sense
Preventative passenger
protection
A pp lies to veh icles: with Audi pre se nse
Audi pre sense can initiate steps to help pro­
tect vehicle occupants in certain situations.
The functions described depend on equ ipment
installed in your vehicle:
Audi pre sense basic*
The following functions can be triggered in
certain driving situations:
- Tightening of the safety belts (for example,
during heavy braking) : the front safety belts
have reversible belt pretensioners. If a colli­
sion does not occur, the safety belts loosen
slightly and are ready to be tightened again.
- Closing the windows and the sunroof*: the
windows and the sunroof* close leaving a
small open gap.
Audi pre sense basic functions can be trig­
gered at speeds above 20 mph (30 km/h).
Vehicles with Aud i drive select*: the deploy­
ment time is adapted in
Dynamic mode.
Audi pre sense front (vehicles with
adaptive cruise control*)
Audi pre sense front includes the functions in
Audi pre sense basic. In addition, within the
limits of the system, the likelihood of a colli ­
sion with the vehicle immediately ahead is al­
so calculated . If the system senses an immi­
nent collision the following functions can be
tr iggered :
- Braking guard c::>poge
90
-Tightening the safety be lts
- Closing the windows and the sunroof* (leav -
ing a small open gap)
Audi pre sense rear (vehicles with Audi
side assist*)
Audi pre sense rear includes the functions in
Audi pre sense basic. In addition, the likeli­
hood of a rear-end collision with the vehicle
coming from behind is also calcu lated.
If the risk
of a co llision is detected, the following
functions can be triggered:
- Tig htening the safety belts
- Closing the windows and the sunroof* (leav-
ing a small open gap)
Audi pre sense plus*
Audi pre sense plus includes the functions in
Audi pre sense front and Audi pre sense rear.
Error message
Audi pre sense: not available
Preventative passenger protection is not avail­
able. See your authorized Audi dealer immedi­
ately to have the malfunction corrected.
_& WARNING
-=
Audi pre sense cannot overcome the laws
of physics. It cannot prevent a collision. Do
not let the increased safety provided
tempt you to take risks. This will increase
the r isk of a collis ion and serious personal
in juries .
- The sensors cannot always detect all ob­
jects. This increases the risk of a colli­
s10n.
-Aud i pre sense does not detect people or
an im als or objects that are crossing the
veh icle's path c::> page
84.
-The radar sensor's vis ion can be reduced
by heavy rain, ice, snow, heavy road sp ray
and reflections from guard rails, tunnel
entrances, etc. These and similar condi­
tions can prevent vehicles from being ac ­
curately detected and in some cases they
may not be detected at all.
(D Note
The sensors can be displaced by impacts or
damage to the bumper, wheel housing and
underbody. This can affect the function of
the Audi pre sense system. Have your au­
thorized Audi dealer check to make sure
that the system is working properly.

224 Checking and filling
Checking and filling Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 186 Driver foo twell: release lever
Fig. 187 Rocker switch un der the hood
Make sure the wiper arms are not raised up
from the windshield. Otherwise the paint
could be damaged .
.,. Pull the lever under the instrument panel in
the direction of the arrow
¢ fig. 186.
.,. Raise the hood slightly¢,&. .
... Press the rocker switch under the hood up­
ward
~ fig. 187. This releases the catch.
• Open the hood.
&_ WARNING
Hot engine coolant can burn you.
- To reduce the risk of being burned,
never
open the hood if you see or hear steam
or coolant escaping from the engine compartment . Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood .
'Working in the engine compartment
Be especially careful whenever you work in
the engine compartment.
Whenever you must perform any work in the
engine compartment, for example checking
and filling different fluids, there is a risk of injury, burns and accidents. To prevent per­
sonal injury always observe the following
WARNINGS. The engine compartment of any
vehicle is a hazardous area
¢ ,&. .
A WARNING
To help avoid injury, before you check any­
thing under the hood:
- Turn off the engine.
- Switch off the ignition .
- Apply the parking brake.
- Move selector lever to P (Park).
- Always let the engine cool down. Hot
components will burn skin on contact.
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coolant escaping from the engine
compartment. Wait until no steam or
coolant can be seen or heard before care­
fully opening the hood.
- Keep children away from the engine com­
partment.
- Never spill fluids on hot engine compo­
nents . They can cause a fire .
- Never touch the radiator fan. The auxili­
ary electric fan is temperature controlled
and can switch on suddenly .
- Never open the coolant reservoir cap
when the engine is still warm . The cool­
ant system is pressurized and hot cool­
ant could spray out.
- Protect your face, hands and arm from
steam or hot engine coolant by placing a
thick rag over the cap when you open the
coolant reservoir.
- Do not
remove the engine cover under
any circumstances. This increases the
risk of burns.
- If work on the fuel system or the electri­
cal system is necessary:

-Always disconnect the battery.
- Never smoke or work near heaters or open flames. Fluids in the engine com­
partment could start a fire.
- Keep an approved fire extinguisher im­
mediately available.
- To avoid electrical shock and personal in­
jury while the engine is running or being
started, never touch :
- Ignition cables
- Other components of the high voltage
electronic ignition system.
- If you must perform a check or repair
with the engine running:
- First, fully apply the parking brake,
move selector lever to P (Park).
- Always use extreme caution to prevent
clothing, jewelry, or long hair from get­
ting caught in the radiator fan, V-belts
or other moving parts, or from contact­ ing hot parts. Tie back hair before
starting, and do not wear clothing that
will hang or droop into the engine.
- Minimize exposure to emission and
chemical ha zards c:::> & .
A WARNING
California Proposition 65 Warning:
- Engine exhaust, some of its constituents,
and certain vehicle components contain
or emit chemicals known to the State of
California to cause cancer and birth de­
fects and reproductive harm. In addition ,
certain fluids contained in vehicles and
certain products of component wear con­
tain or emit chemicals known to the
State of California to cause cancer and
birth defects or other reproductive harm .
Checking and filling 225
-Battery posts, terminals and related ac­
cessories contain lead and lead com­
pounds, chemicals known to the State of
California to cause cancer and reproduc­
tive harms. Wash hands after handling.
(D Note
When adding fluids, always make sure that
they are poured into the proper container
or filler opening, otherwise serious dam­
age to vehicle systems will occur.
(® For the sake of the environment
To detect leaks in time, inspect the vehicle
floor pan from underneath regularly . If
you see spots from oil or other vehicle flu­ ids, have your vehicle inspected by an au­
thorized Audi dealer.
Closing the engine hood
.,. Pull the hood down until the pressure from
the struts is reduced.
"'Let the hood
drop down and latch in place.
Do not try to push it shut; it may fail to en­
gage
c:::> ,A .
A WARNING
-
A hood that is not completely latched
could fly up and block your view while driv ­
ing .
- When you close the engine hood, check it
to make sure the safety catch has proper­ ly engaged. The hood should be flush
with the surrounding vehicle body parts.
- If you notice while driving that the hood
is not secured properly , stop at once and
close it. •
•

(D Note
Driving with an insufficient oil level is like­
ly to cause severe damage to the engine.
@ Tips
- The oil pre ssure w arning di spl ay . is
n ot an indi cato r of the oil le vel. D o not
rely on it. Inste ad , c heck th e oil le vel in
y ou r engine at regula r inter vals, pref ­
er ably each t ime you refu el, and al way s
befor e going on a long tr ip .
- If you have the impression your engine
consumes excessive amounts of oil, we
recommend that you consult your Audi
dealer to have the cause of yo ur conce rn
properly diagnosed. Keep in mind that
the accurate measurement of oil con­
sump tion requires great care and may
take some time. Your Audi dealer has in­
str uctions about how to measure oil con­
sumption accurately.
Checking the engine oil level
Fig. 18 9 Display: oil leve l indicato r
"'Park your vehicle on a level surface .
"' Shu t the engine off when it is warm.
"' Switch only the ignition back on.
"' Wait approximately two minutes.
"' Se lect :
I CARI funct ion button > ( Car )* sys -
tems
control button > Se rvicing & che ck s >
O il lev el.
"'Check the oil level in the display ¢fig. 189.
Add engine oil if the bar of the oil level indi­
cator is near "min"
c::;,page 229 .
Depending on the way the veh icle is driven
and the operating conditions, oil consumption
Checkin g and fillin g 229
can be up to 1/2 quart pe r 600 miles (0.5 liter
per 1,000 km). Consumption may be higher
within the first 3,000 miles (5,000 km) .
(D Tips
The oil level indicator in the MMI Display is
on ly an information display. If the oil level
is low, a minimum oil warning appears in
the instrument cluster. Add oil
c::;, page 229. If the hood has been opened,
the current oil level is shown in the instru­
ment cluster the next t ime the ignition is
switched on.
Adding engine oil~
Fig. 190 Eng in e compa rtm ent : cove r on the engine oi l
filler neck
Before you check anyth ing in the eng ine com ­
partment,
alw ays rea d and he ed all WARN ­
ING S
c::;, &. in Working in the engine compart­
ment on page 224.
"' Shut the eng ine off .
"' Unscrew the cap
't".:::?: to the engine o il filling
hole
c::;, fig. 190, c::;, page 226, fig . 188.
"' Carefully top off with 0.5 quarts (0.5 liters)
of the appropriate oil
c::;, page 226.
"' Check the oil level again after two minutes
c::;, page 229, Checking the engine oil level.
"'Top off the oil again, if necessary.
"' Screw the cap back on the filling hole.
A WARNING
--Wh ile topping off, the o il must not come
in conta ct with hot engine parts -fi re
ha zard!

(D Note
-Do not disconnect the ve hicle battery
when the ignition is on or when the en­
gine is running, otherwise, you will dam­
age electronic components in the electri­
cal system .
- If your vehicle is going to stand for a
long period of time without being driven,
protect the battery from "freezing", oth­
erwise it will be damaged and w ill then
have to be replaced.
Battery charging
Starting the engine requires a well charged
battery.
Fig. 193 Engine compartment: connectors for a charg­
er and jump sta rt cables
Always read and heed all WARNINGS below
c::, &. and c::, &. in Working on the battery on
page 236 .
.,. Switch off the ignit ion and all electrical con­
s umer s.
.,. Make sure the area is well vent ilated when
you charge the battery .
.,. Open the engine hood
c::, page 224.
.,. Open the red cover on the posit ive pole
¢fig. 193 .
.,. Connect the charger connectors according to
the instructions to the
jump start bolts.
(Bolts under the red cover= "positive", Bolts
with hex head= "negative").
.,. Only now plug the mains lead for the charg­
ing equipment into the wall outlet and turn
it on
c::, &_ .
.,. Make sure the charging rate is not over
30 amp s/14 .8 Volt.
Checkin g and fillin g 237
.,. When the battery is fully charged: Turn the
charging equipment off and
remove the
mains lead from the wall out let.
.,. Now remove the clamps for the charging
equ ipment.
.,. Close the red cover on the positive pole .
.,. Close the hood
c::, page 225.
A discharged battery can
freeze at tempera­
tures of only
32 F0 (0 °C) . Allow a frozen bat­
tery to thaw completely before attempting to cha rge it
c::, ,&. . However, we recommend not
using a thawed batte ry again because the bat­
tery casing can be cracked due to ice fo rma­
tion and can leak battery ac id.
Battery charging (Maximum charging rate
of 30 amps/14.8 Volt )
When charging at low vo ltages (e.g. with a
trickle charger) , the battery cables do not
have to be disconnected first . The battery
caps should
not be opened when charging a
battery .
It is not necessary to
remove the battery from
the luggage compartment, and it is a lso not
necessary to disconnect the cab les .
Fast charging the battery (charging rate
above 14 .8 Volts)
For technical reasons do not use a battery
charger that uses voltage greater than 14.8
Volts to charge your vehicle's battery .
_& WARNING
-
Charging a battery can be dangerous.
- Always follow the operating instructions
provided by the battery charger manu­
facturer when charg ing your battery.
- Never charge a frozen battery. It may ex­
plode because of gas trapped in the ice.
Allow a frozen battery to thaw out first.
- Do not reuse batteries which were fro­
zen. The battery housing may have
cracked and weakened when the battery
froze.

292 Index
Starting with j umper cab les . ....... . 274
Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . 7 5
E ng ine compartment ....... .... .... . 226
C lo sing the hood ....... .. .. .. .. .. . 225
Opening the hood ........ .. .. .... . 224
Safety instructions ..... ... .. .. .... . 224
Working in the engine compartment .. 224
E ng ine coolant .......... .. .. .. .. .. . 23 1
Adding co ol ant ........... .. .. .... . 23 2
Che ckin g the eng ine coolan t leve l .. ... 232
E xpansion tan k ... ..... ... .. .. .... . 23 2
M alfunctio n symbo l . . . . . . . . . . . . . . . . . 17
Radiato r fan . .. .. ..... ... .. .. .... . 233
Temperature ga uge ....... .. .. .. .. . . 11
E ng ine oi l ..... ........... .... .... . 226
Adding .... ... . ...... ... .. .. .... . 229
Addit ives ... ... .. ..... ... .. .. .... . 229
C hanging . .... . ...... ... .. .. .... . 230
Check ing the eng ine o il level .. .. .... . 229
Indications and cond it ions requ iring ex-
tra check ing .. ... .... .... .. .. .. .. . 229
Ind icator light . . . . . . . . . . . . . . . . . . . . . 18
O il consumption ........... ... .. .. . 228
O il g rades .. .. . .......... .. .. .... . 226
Pr ess ure mal function ...... .. .. .. .. . . 18
Recommended oil check in tervals .... . 229
Sensor defective . . . . . . . . . . . . . . . . . . . . 22
Specification and viscos ity . ... .. .. .. . 226
E ng ine sound ............. .. .. .... . 100
Eng ine speed limitat ion ..... .. .. .... .. 22
E ng ine start -stop mode
refer to Start -Stop -System ... ... ... .. 81
E ng ine start system (ind icator lights) .... 18
Environment Break- in period ........... .. .. .. .. . 201
Cata lytic conve rter .. ...... .. .. .. .. . 202
Diese l partic ulate fil ter ..... ... .. ... 202
Di sposing of you r vehicle batte ry .. .. . 238
Dr iving a t high speeds ... .. .. .. .. .. . 20 4
D riving to m inim ize pollu tion and no ise 203
Fu el . .... .. ... ... .... ... .. .. .... . 2 18
Fu el economy .. . ...... ... .. .. .... . 203
L eaks under your veh icle ... .. .. .. .. . 224
Lett ing the vehicle stand and warm up . 204
Proper disposal of dra ined brake f luid . 234 Proper disposal of d
rained eng ine cool -
ant . ... .. .... .. .. ... ..... ... .. .. 232
Proper d isposal of d rained eng ine
o il . . . . . . . . . . . . . . . . . . . . . . . . . 229, 230
Recycling used engine oil ........ .... 229
U nleaded fuel .. .. ................ . 215
What s hou ld I do w ith an o ld battery? . 238
Event Data Recorde r (EDR) ..... ... .. .. 194
E xhaus t tai l pipes
C leaning .. .. .. . .............. .. .. 211
Expansion tank .. .. .......... ...... . 232
Exterior lighting ... .. ... ..... ... .. .. . 43
E xte rior mi rrors
Adjus ting . .... .. .. ........... .... . 50
D imming . ..... .. .. ... ..... ... .. .. . 51
Heating . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
E xterior tempera ture display ........... 24
F
Fastening
Booster seats . . . . . . . . . . . . . . . . . . . . . 182
Co nvertib le child safety seats ........ 180
I n fan t seats ... .. ............. .... 179
Floor mats .. .... .. ............. .... 133
F oot peda ls ..... .. .. ... ..... ... .. .. 133
Fo r the sake of the environment
Gasoli ne fumes and the env ironme nt .. 218
Red ucing engine noise by early upshift -
i ng ....... .. .. .. .. ............... . 11
Ref ueling ..... .. ... .. ..... .... . .. 218
Saving f uel by early ups hifting ... .. .. . 11
Fo ur- zone automatic climate control . .. . 70
Front a irbags
Descrip tion .... ... ................ 151
How they work . .. .......... ...... . 157
Frontal col lisions and the laws of p hysics 139
Front seats . . . . . . . . . . . . . . . . . . . . . . . . . 52
Adjus ting . .. .. .. ............. .. .. 130
C hild rest rain ts in the front seat . ... .. 149
Fuel Additives ...... .. ..... ........... . 215
B len ded gaso line .............. .... 215
Cur rent co nsumption ........... .... . 25
E conomy messages (e fficiency p rogram) 2 7
Fuel fi lle r flap emergency release ... .. 220
Fuel fi lle r neck ... .. .... .... ... .. .. 217
Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . 12