2015 AUDI A6 open hood

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Instrument s and warning /indicator lights 11
Instruments and warning/indicator lights
Instruments
Instrument cluster and controls
The instrument cluster is your central source of information.
Fig. 3 Overv iew of the instrument cluster
CD Coolant temperature gauge .. .
@ Tachometer (eng ine rev counter)
@ Turn signals ............... .
@ Display with
®
®
-Driver information system .. .
- Wa rning/ind icator lights
Tachometer Fuel gauge
@ Tips
11
12
45
24
12
12
The instrument illumination (for dials and
needles) turns on when the ignition is on
and the vehicle lights are turned off. As
the daylight fades, the illumination of the
dials likewise dims automatically and wil l
go out completely when the outside light
is very low. This feature is meant to rem ind
you to switch on the headlights when out­
side light conditions become poor.
Engine coolant temperature gauge
The engine coolant gauge CD¢ page 11, fig. 3
only works when the ignition is on. To prevent
damage to your eng ine, please note the fol­
l owing important points:
Engine cold
If only the LEDs at the bottom of the gauge
turn on, the eng ine has not reached operating
temperature yet . Avoid high engine speeds,
heavy engine loads and heavy throttle applica­
tions.
Normal temperature
The engine has reached its operating temper­
ature once the LEDs up to the center of the
gauge turn on under normal driving cond i­
t ions. The LEDs higher up may turn on when
the engine is under heavy load or the exterior
temperature is high. This is no need to worry
as long as the. warning light in the instru­
ment cluster does not illuminate . If the LEDs
in the upper area of the display and the indica­
tor light . in the instrument cluster display
turn on, the coolant temperature is too high
¢page 16.
A WARNING
-Always observe the warn ing in
¢ page 222, before opening the hood
and checking the engine coolant level.

12 Instrum ent s and w arn ing /indic ato r light s
-Never open the engine hood if you see or
hear steam, or if you see engine coolant
dripping from the engine compartment.
You could burn yourself . Let the engine
cool off first until you can no longer see
o r hear steam or coo lant escaping.
@ Note
- Mounting additional lights or accessories
i n front of the a ir inlets reduces the cool­
i ng effect of the rad iator . At h igh outside
temperatures or high eng ine load, the
engine could overheat.
- The front spo iler has been designed to
proper ly distribute the cooling air when
t h e ve hicle is moving.
If the spoiler is
dam aged, th is co uld red uce the cooling
effect and the engine co uld then over­
heat . Ask your authorized Audi dea ler for
assistance .
Tachometer (engine rev counter)
The tachometer indicates the engine RPM
(revolutions per minutes).
If engine RP M drops be low 1,500, yo u should
downshift to the next lower gear. The red a rea
at the end of the sca le indicates maximum
perm iss ib le engine RPM after the break-in pe­
riod. Before reaching this area, move these­
lector lever to position D/S (Drive) or ease
your foot off the accelerator pedal.
(D Note
The tachometer needle should on ly br iefly
be in the red zone: you could damage your
engine! The beginn ing of the red zone var­
ies depending on the engine .
@ For the sake of the environment
Upshifting early saves fuel and reduces en­
gine noise.
Fuel gauge
The fuel gauge only works when the ignition is
on .
If the fuel level d rops below 2 . 6 ga llons (10 liters), the bottom LED turns red and the
indicator light
ll'J turns on r=> page 22. The
bottom LED blinks red when the fuel level is
very low.
T he possible range based on the current fuel
level is shown in tab@r=>
page 24, fig . 4 .
(D Note
Never run the tank completely dry. An ir ­
r egular supply of f uel can cause engine
misfiring and fuel could enter the ex ha ust
system . The catalytic converter could then
overheat and be damaged.
Warning/indicator Lights
Description
The ind icator lights in the instrument cluster
blink or turn on. They indicate funct ions or
malfunctions
r::!> ,& .
Messages may appear with some indicato r
lights. A warning signal will sound at the
same t ime. The indicator lights and messages
in the center of the displays may be rep laced
by other d isplays . To show them again, select
the tab for ind icator lights and messages us­
i ng the multifunction steering wheel
r::!> page 24. If t here are several malfunc­
t ions, you can display them one at a time us­
ing the thumbwheel.
Some indicato rs lights in the d isplay can turn
on in severa l co lors.
A WARNING
- F ailure to heed w arning l igh ts and other
important vehicle in forma tion may res ult
in ser io us personal inj ury or vehicle dam­
age .
- Whenever stalled or stopped for repair, move the vehicle a safe d istance off the
road, stop the engine, and turn on the
emergency flasher
r::!> page 44.
- The engine compartment of any motor
veh icle is a potentially hazardous area.
Before you chec k anything in the engine

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Instruments and warning/indicator lights 15
Adaptive cruise contro l*
Q page 86
Audi act ive lane assist*
qpage 94
Sta rt-Stop-System*
¢page 79
Sta rt-Stop-System*
¢page 79
High beam
qpage45
BRAKE /(0) Brake system
The light illuminates when the ignition is
switched on.
It goes ou t after the engine has
been started. This indicates that the brake
warning light is functioning properly.
If the brake warning light does not light up
when the engine is cranking, there may be a
malfunction in the electrical system. In this
case , contact your Audi dealer.
If the brake system warning/ind icator light
turns on, there is a brake system mal function.
• (USA models ). (Canada models ) Stop
vehicle and check brake fluid level
If the indicator light turns on and the mes­
sage appears, p roceed as follows:
~ Pull off the road.
~ Stop the vehicle.
~ Turnoff the engine .
~ Check the brake fluid level q page 231 .
~ Contact your nearest authorized repa ir fa-
c ili ty if necessary.
Warning! Fault in brake system . Contact
dealer
If the ABS indicator light rJE (USA models)/
ii] (Canada models), the ESC indicator light
G1 and the brake system indicator light
• (USA models)/ . (Canada models) turn
on and the message appears, the ABS, ESC
and b raking dist ribution are not working
Q _& .
Carefully drive to your authorized Audi dealer
immediately to have the malfunction correct­
ed
Q ,& .
• (USA models) . (Canada models) Park­
ing brake: system fault! Please contact deal­
er
- If the ind icator light and the message ap­
pear
when stationary or after switching the
ignition on,
check if you can release the
parking brake. After releasing the parking
brake, carefully drive to your authorized
Audi dea ler immediately to have the ma l­
function corrected. If you cannot release the parking brake, seek professional assistance.
- If the ind icator light and the message ap ­
pear
while driving , the emergency brak ing
function may not be available. It may not be possible to set the park ing b rake or release
it once it has been set . Seek profess ional as­
sistance .
(USA models): If the warn ing light . and the
warning light
liJ appea r together, immedi ­
ately contact your authorized Aud i dealer or
qualified workshop to have all brake pads in­
spected
¢ page 20.
When the light comes on, an aud ible warning
s ignal is also g iven .
A WARNING
-Always observe the warn ings in
q page 222, before opening the hood
and checking the brake fluid.
- Driving with low brake fluid is a safety
ha zard . Stop the car and get professional
assistance.
- If the. (USA models). (Canada
models) brake system indicat or light
turns on together with the ABS and ESC
indicator lights, the ABS/ESC regulating
function may have failed. Functions that
stabilize the vehicle are no longer avai la­
ble. This could cause the vehicle to
swerve and increase the risk of slid ing .
Drive carefully to the nearest authorized
Aud i dealer or other qualified workshop
and have the malfunction corrected. ..,.

16 Instrum ent s and w arn ing /indic ato r light s
-If the brake warning/indicator light does
not go out after a few seconds and the
park ing brake is released, or lights up
wh ile you are driving, the fluid level in
the brake fluid reservoir is too low .
If you
believe that it is safe to do so, proceed
immediately at low speed to the nearest
authori zed Aud i dealer o r qualified repa ir
f acili ty and have the brake system in­
spected.
- Always keep in m ind that after several
brake applicat ions, yo u will need greater
pressure on the brake peda l to stop your
vehicle. Do not re ly on strained brakes to
respond with maxim um stopp ing power
in critical situations. You must allow for
increased brak ing distances . The extra
distance used up by fad ing brakes could
lead to an acc ident.
PARK/( ®) Electromechanical parking brake
The warning/indicator light monitors the
electromechanical parking brake.
If the indicator light . (USA models)/ .
(Canada models) turns on, the park ing brake
was set .
• (U SA models) • (Canada models ) Cau­
tion: Vehicle pa rked too steep
If the indicator light blinks and the message
appears, there is not eno ugh braking power to
keep the vehicle from ro lling . The brakes have
overheated. The vehicle could ro ll away even
on a small incline.
P res s brake pedal to relea se parking brake
To release the parking bra ke, press t he b ra ke
pedal and press the button~ or start d riving
with start ing assist at the same time
c::> page 78.
Plea se release parking brake
To release the parking brake ma nually, press
the brake pedal and press the button~ at the
same time . T he parking brake on ly re leases
automatically if the dr iver's safety be lt is fas­
tened.
Ill Parking brak e!
If the Ill ind icator light tu rns o n and this
message appears , the re is a parking b rake
malfunction . Drive to your au thorized A udi
dealer or qualif ied workshop immediately to
have the malfunction corrected .
-L Engine cooling system malfunction
A malfunction in th e engine cooling system
must be repaired as soon as possible.
• Swit ch off engin e and check coolant level
If the indicator light turns on and the mes­
sage appea rs, the coolant temperature is too
high o r the coolant leve l is too low.
.. Pull
off the road .
.. Stop the vehicle .
.. Tu rn
off the engi ne .
.,. Check coolant level
c::> page 228 .
.. Add coo lant if necessary c::> page 229 .
.,. Con tinue dr iv ing on ly afte r the engine coo l­
ant warning/indicator light goes out .
.. Contact your authorized A udi dealer for as-
sistance if necessary.
If the engine coo lant level is correct, then the
radiator fan may be the ca use of the malfunc­
tion .
• Coolant temperature too high! Plea se let
engin e run with vehicl e st ationary
If the indicator light turns on and the mes­
sage appea rs, let the engine run at id le for a
f ew m inutes to cool down.
A WARNING
- If your vehicle should break down for
mechanical or other reaso ns, park at a
safe distance from mov ing traffic, turn
off the eng ine and turn on the hazard
warn ing lights
c::> page 44, Emergency
flasher .
-
-Never open the hood if you see or hear
steam or coo lant escaping from the en­
g in e compartment -you r isk being scald­
ed. Wait unt il you can no lo nger see or
hear steam o r coolant escap ing .
~

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for another vehicle or a transponder is located on the key ring.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions
¢ page 295.
Power locking system
General description
The power locking system locks or unlocks all
doors and the rear lid simultaneously.
You can lock and unlock the vehicle centrally.
You have the following choices:
- Remote master key¢
page 34,
- Door handles with convenience key*
¢page 35 ,
- Lock cylinder at the driver's door
¢page 36, or
- Power locking switch inside¢
page 36.
Selective unlocking
When you lock the vehicle, the power locking
system will lock the doors and the rear lid.
When unlocking, you can set in the MMI
whether only the driver's door or the entire
vehicle should be unlocked
¢page 34.
Automatic locking
The automatic locking feature locks all the ve­
hicle doors and the rear lid when you drive
faster than 9 mph (1S km/h).
T he car is unlocked again, when the opening
function in the power locking system switch
or at one of the door levers is actuated .
Anti-theft alarm warning system
If the anti-theft alarm warning system de­
tects a break-in into the vehicle, acoustic and
visual warning signals are triggered .
T he anti-theft warning system is activated au­
tomatically when you lock the vehicle . It is de­
activated when unlocking using the remote key, with the mechanical key, and when you
switch the ignition on.
The alarm also turns off when the alarm cycle has expired .
Opening and closing 33
Turn signals
When you unlock the vehicle, the turn signals
flash twice. When you lock the vehicle the
turn signals flash once. If they do not flash ,
one of the doors, the rear lid or the hood is not locked.
Unintentionally locking yourself out
In the following cases there safeguards to
prevent you locking your remote master key in
the vehicle:
- The vehicle does not lock with the central
locking switch¢
page 36 if the driver's
door is open.
- On vehicles with convenience key*, if the
most recently used master key is in the lug­
gage compartment, the rear lid is automati­
cally unlocked again after it is closed.
Do not lock your vehicle with the
remote mas­
ter key or convenience key*
until all doors
and the rear lid are closed. In this way you
avoid locking yourself out accidentally.
Power side door closer*
The vehicle doors are equipped with a power
side door closer. When closing a door, you on­
ly have to let it fall lightly into the latch. The
door will then automatically close by itself
¢..1, .
A WARNING
-
- When you lock your vehicle from outside,
nobody -especially children -should re­
main inside the vehicle. Remember,
when you lock the vehicle from the out­
side the windows cannot be opened from
the inside.
- When you leave the vehicle, always take
the ignition key with you . This will pre­
vent passengers (children, for example) from accidentally being locked in the ve­
hicle should they accidentally press the
power locking switch in the doors.
- Do not leave children inside the vehicle
unsupervised. In an emergency it would
be impossible to open the doors from
the outside without the key.

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If the vehicle is unlocked and no door, the rear
lid or the hood is opened within 60 seconds ,
the vehicle locks itself aga in automatically.
This feat ure prevents the ve hicle from be ing
accidentally left unlocked over
a long period
of t ime.
It depends on the settings in the MMI wheth­
er the entire veh icle is unlocked or on ly cer­
t ain doors
Q page 34.
A WARNING
Read and follow all WARNINGS¢.&. in
General description on page 33 .
- In order to make sure the locking func­
tion is working, you shou ld always keep
your eye on the vehicle to make sure it is
properly locked .
-
-Do not use the remote control if you are
i nside the car, otherwise you may unin ­
tentiona lly lock the vehicle, and then you
would set off the anti-t heft ala rm when
you try to s tart the engi ne or open a
doo r. In c ase this happe ns anyhow, push
the un lo ck button
m .
- The vehicle can only be locked whe n the
se lector lever is in the P posit ion .
- Use the panic funct io n only if you are in
an emergency si tu at ion .
Locking and unlocking with convenience
key
Applies to vehicles: with conven ience key
The doors and the rear lid can be unlocked
and locked without operating the master key.
F ig. 2 1 Conve nie n ce key : Lock ing t he ve hicle
Opening and clo sin g 35
Unlocking vehicle
.,. Take ho ld of the door handle . T he door is un-
loc ked automatically .
.,. Pull the handle to open the door.
Locking vehicle
.,. Sele ct the P se lecto r lever posit ion. Othe r­
w ise the vehicle canno t be lo cked.
.,. To lock the ve hicle, close the door and touch
the sensor in the door handle
once Q fig . 21 .
Do not reach inside the door handle.
T he veh icle can be locke d an d unl ocke d at any
doo r. The master key mus t be within a range
of about 1.5 m from the appropriate door or
the rear lid. It makes no difference whether
the master key is in your jacket pocket or in
your brief case .
It is not possib le to re -ope n the doo r for a
brief period directly after closi ng it. This a l­
l ows you to ensure that the doors are properly
locked.
It depends on the settings in the MMI wheth­
er the enti re vehi cle is unloc ked or one of the
doors
Q page 34.
A WARNING
Read and follow all WARNINGS Q .&. in
General description on page 33 .
(D Tips
If your vehicle has been sta nding for an ex­
tended period, please note the following:
- The p rox imity sensors a re deactivate d af-
ter a few days to save power. You then
have to pull on the door handle once to
unlock the vehicle and a second t ime to
open the vehicle.
- To prevent the battery from being d is­
charged and to preserve your vehicle 's
ability to start for as long as possib le,
the energy management sys tem grad u­
ally switc hes off unnecessary conven­
ie nce func tions. It is possib le th at you
w ill not be ab le to unlo ck you r ve hicle us-
ing these convenience func tions.
1J1>

50 Clear vision
-To help prevent damage to wiper blades,
do not use gasoline, kerosene, paint
thinner, or other solvents on or near the
wiper blades.
- To help prevent damage to the wiper
arms or other components, do not at­
tempt to move the wipers by hand.
@ Tips
- Commercial hot waxes applied by auto­
matic car washes affect the cleanability
of the windshield .
- You can also use the service position, for
example, if you want to protect the
windshield from icing by using a cover .
- You cannot activate the service position
when the hood is open.
Mirrors
Adjusting the exterior mirrors
Fig . 47 Fo rw ar d sect ion of driver's a rmrest: power mir­
r or co ntrols
Turn the knob to the desired position :
Q/P -In this position, you can adjust the
driver's and front passenger's exterior mirrors
by turning the knob in the desired direction .
4ill-The mirrors are heated depending on the
outside temperature .
8 -The exterior mirrors fold in. In the MMI,
you can select if the mirrors fold in automati­
cally when you lock the vehicle ¢
page 34.
Tilt function for the passenger's mirror
To help you see the curb when backing into a
parking space, the surface of the mirror tilts slightly.
The knob must be in the P position
for this to happen.
You can adjust the tilted mirror surface by
turning the knob in the desired direction.
When you move out of reverse and into anoth­
er gear, the new mirror posit ion is stored and
assigned to the key you are using.
The mirror goes back into its original position
once you drive forward faster than 9 mph (15
km/h) or switch the ignition
off.
.&_ WARNING
--
-Curved (i.e. convex) mirror surfaces in-
crease your field of view. Remember that
vehicles or other objects will appear
smaller and farther away than when seen in a flat mirror. If you use this mirror to
estimate distances of following vehicles
when changing lanes, you could estimate
incorrectly and cause an accident.
(D Note
-If the mirror housing is moved uninten­
tionally (for example, while parking your
vehicle), then you must first fold the mir­
ror electrically. Do not readjust the mir­
ror housing manually. You could damage
the motor which controls the mirror.
- If you wash the vehicle in an automatic
car wash, you must fold the exterior mir­
rors in to reduce the risk of damage to
the mirrors. Never fold power folding ex­
terior mirrors* by hand . Only fold them
in and out using the power controls.
(D Tips
- The exterior mirror settings are stored
with the memory function*¢
page 56.
-If there is a malfunction in the electrical
system, you can still adjust the exterior
mirrors by pressing the edge of the mir­
ror.

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
ml 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 w it h the park ing brake set
¢ page 222 . Otherwise, any increase in
eng ine speed may set 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
t o 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
The hill descent control system assists the
driver when driving down declines.
Hill descent contro l is activated when these ­
lector lever is in D/S and you press the brake
pedal. The transmission automatically selects
a gear that is su itable fo r the incline. H ill de­
scent contro l tries to ma inta in the speed ach­
ieved at the time o f braking, within phys ica l
and technical limitations. If may sti ll be nec -
essary to adj ust the speed with the brakes . ..,..