2014 AUDI A7 coolant

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
46
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 disp lay and the indica­
tor light . in the instrument cluster display
turn on, the coolant temperature is too high
¢page 17.
A WARNING
-Always observe the warn ing in
¢ page 22 7, 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
Em turns on
¢ 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@<=>
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 <=>,& .
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
Q 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<=>
page 45.
-The engine compartment of any motor
veh icle is a potentially hazardous area.
Before you chec k anything in the engine

Instruments and warning/indicator lights 17
-L Engine cooling system malfunction
A malfunction in the engine cooling system
must be repaired as soon as possible.
• Switch off engine and check coolant level
If the indicator light turns on and the mes ­
sage appears, the coo lant temperature is too
high or the coo lant level is too low.
.. Pull
off the road.
.. Stop the vehicle .
.. Turn
off the engine.
.. Check coolant level
c> page 235.
.,. Add coolant if necessary c> page 235 .
.. Continue driving only after the eng ine cool­
ant warn ing/ indicator light goes out .
.. Contact your authorized Audi dealer for as-
sistance if necessary .
If the engine coolant level is correct, then the
radiator fan may be the cause of the malfunc­
tion .
• Coolant temperature too high! Please let
engine run with vehicle stationary
If the indicator light turns on and the mes­
sage appears in trailer mode*, let the engine
run at idle for a few m inutes to cool down.
A WARNING
- If your veh icle should break down for
mechanical or other reasons, park at a
safe distance from moving traffic, turn
off the engine and turn on the hazard
warning lights¢
page 45, Emergency
flasher.
- Never open the hood if you see or hear
steam or coolant escaping from the en­
gine compartment -you risk being scald­
ed. Wait until you can no longer see or
hear steam or coo lant escaping .
- The engine compartment of any vehicle
is a dangerous area. Before you perform
any work in the engine compartment,
turn of the eng ine and allow it to cool.
Follow the warning stickers¢
page 227.
@ Note
Do not continue driving if the . symbol
ill uminates . There is a malfunction in the
engine cooling system -you could damage
your engine.
D Battery
This warning/indicator light detects a mal­
function in the generator or in the vehicle 's
electrical system .
The .warn ing/ indicator light illuminates
when you switch on the ignition and must go
out after the eng ine has started .
• Alternato r fault : Battery is not being
charged
If t he indicator light turns on and the mes­
sage appears, there is a malfunction in the
generator or vehicle electrical system .
Drive to your authorized Audi dealer or quali­
fied workshop immed iate ly. Because the vehi­
cle battery is discharging, turn off all unnec ­
essary e lectrical equipment such as the radio.
Seek professiona l assistance if the battery
charge level is too low.
(•) Low battery: battery will be charged
while driving
If the indicator light turns on and the mes­
sage appears, there may be limited starting
ability .
If this message turns off after a little while,
the battery charged enough while driving.
If the message does not turn
off, have your
authorized Aud i dea ler or qualified workshop
correct the malfunction.
4t Safety belts
This warning/indicator light reminds you to
put on your safety belt.
The . warn ing/ indicator light illum inates
when the ignition is switched on to remind
the driver and any front passenge r to put on ..,.

Warm and cold Climate controls
Description
App lies to vehicles: with three -zone cl imate contro l or
four -zone a uto mat ic climate contro l
The climate control system warms, cools and
adds humidity to the air in the vehicle interior .
It is the most effective when the windows and
sunroof* are closed . If the temperature inside
the parked veh icle becomes very warm, open­
i ng the w indow br iefly will speed up the cool­
ing process.
In all heating mode functions except
defrost,
the blower on ly switches to a higher speed
once the engine coolant has reached a certain
temperature.
Condensat ion from the cooling system can
drip and form a puddle of wate r under the ve­
h icle. This is normal and does not mean there
is a leak .
Pollutant filt er
The pollutant filter removes pollutants such
as dust and po llen from the air.
The air pollutants filter must be changed at
the intervals specified in your Warranty
&
Maintenance booklet, so that the air condi­
tioner can properly work .
If you drive your vehicle in an area with high
a ir pollution, the filter may need to be
changed more frequently than specified in
your Aud i Warranty
& Ma intenance booklet. If
i n doubt, ask your authori zed Audi Service Ad­
visor for adv ice.
K ey coded settings
Three-zone climate control: T he b lower set­
ting and air d istribution are stored automati­
cally and ass igned to the remote control key
that is in use .
Four-zone automatic climate control: The cli­
mate contro l settings are automatica lly stor­
ed and assigned to the remote control key
that is in use .
Warm and c old 69
A WARNING
-
Reduced visibi lity is dangerous and can
cause acc idents .
- For safe driving it is very important that
all windows be free of ice, snow and con­
densat ion.
- Comp letely fam il iarize yourse lf with the
proper use and funct ion of the heat ing
a nd ventilation system and especially
how to defog and defrost the w indows.
- Never use the windshield wiper/washer system in freez ing weathe r unt il you
have wa rmed the windshie ld first, using
the heating and ventilation system. The
washer sol ution may freeze on the wind­
shie ld and red uce visibi lity.
CJ) Note
- If you s uspect that the air conditioner
has been damaged, switch the system
off to avoid furt her damage and have it
inspected by a qualified dea lership .
- Repairs to the Audi air conditioner re­
quire specia l technical know ledge and
special tools. Contact an authorized Audi
dealer fo r ass istance.
@ For the sake of the envi ronment
By reducing the amount of f uel you use,
you also red uce the amount of pollutants
emitted into the air.
(D Tips
- Keep the air intake s lo ts ( in front of the
w indshield) free from ice, snow and de­
bris in order to maintain the proper func­
tion of the climate control system.
- The energy ma nagement system may
switch the seat heating* or rear window defroster off temporar ily. These systems
are available again as soon as the energy
balance has been restored .
- Air escapes through vents under the rear window. When plac ing items of cloth ing
on the luggage compartment cover, en­
sure that the openings are not covered.

7 2 Warm and cold
Four-zone automatic climate control
Operation
Applies to vehicles: with four -zone automa tic clima te control
We recommend pressing the IAUTO I button and setting the temperature to 72 °F (22 °C).
Fig. 74 Fo ur-zone automat ic climate contro l: controls
Fig . 75 Fou r-zone automatic cl imate cont ro l: rear con ­
trol s
Press the buttons to turn the functions on or
off. Use the dials to adjust the temperature,
the blower speed and the air distribution. The
LED in a button will light up when the func­
tion is switched on. The settings are shown in
the climate control display and are also shown in the MMI display for a few seconds . The driv­
er and front passenger sett ings can be adjust­
ing separately.
The settings can also be adjusted in the rear
<::;> fig. 75.
IOFF j Switching the climate control
system on/off
The I O FFI button switches the climate control
system on or off .
It also switches on when you
turn the dia l or press any button. Airflow from outside is blocked when the
climate control
system is switched off .
You can activate the residual heat function
whe n the ignition is off by pressing and hold­
ing the ~ button. The residua l heat from the
coolant is used to heat the vehicle interior .
The residual heat function switches off auto­
matically after about 30 minutes.
!ACI Switching cooling mode on/off
T he air is not coo led and humidity is not re­
moved when cooling mode is switched off.
T his can cause fog on the windows. Cooling
mode switches off automatically when the
outside temperature is be low zero .
1- 1 Switching recirculation mode on/off
In recircu lation mode, the air inside the vehi ­
cle is circu lated and filtered. This prevents the
unfiltered air outside the vehicle from enter­
ing the vehicle interior . We recommend
switching recirculation mode on when driving
through a tunnel or when sitting in traffic ¢ .&, .
The
! AUTO I button or~ button switches rec i r-
cu lation mode off. .,.

78 On the road
switched off. It can a lso switch on again
after some time if the coolant tempera­
ture rises as the result of a heat buildup
or if the engine is hot and the engine
compartment is addit ionally heated by
the sun's rays.
(D Note
D o not stop the engine immediate ly afte r
hard or extended driving . Keep the engine
running for approximately two minutes to
prevent excessive heat build-up.
Driver message in the instrument
cluster display
Turn off ignition b efo re leaving car
This message appears and a war ning tone
sounds if yo u open the dr ive r's door when the
ignition is switched on.
Pres s brake pedal to start en gine
This message appears if you press the
I STAR T ENGINE ST OP ! button to start the en­
g ine and do not depress the brake pedal. The
engine can on ly be started if the brake pedal
i s depressed.
!I ls k ey in the vehicle ?
If the indicator light turns on and the mes­
sage appears, the remote control key was re­
moved from the vehicle while the engine was
running . If the ignit ion key is not in the vehi ­
cle you w ill not be ab le to switch on the ig ni­
tion o r restart the eng ine after it has been
switched off. Yo u wi ll also not be able to lock
the vehicle from the outside.
Shift to P , otherwise vehicle can roll away .
Doors do not lo ck if le ver i s not in P .
This message appears for safety reasons
along w ith an audib le warn ing tone if the P
selecto r lever posit io n is not engaged when
stopping the eng ine with the
I START ENGINE STOP! button. Select the P se­
lector lever posit io n. Otherw ise the veh icle
could roll and it cannot be locked.
mJ Ke y is not re cogni zed . H old back of ke y
a ga in st marked are a. See owner' s manual.
If the indicator ligh t turns on and this mes­
sage appears, there is a malf unct ion
r::!;> page 78.
Turn off ignition before l ea v ing car. B attery
i s d isc harging
This message appears if the driver's door is
opened wh ile the ignition is switched on. Al­
ways switch off the igni tion if you are leaving
the vehi cle. See also
r::¢,page 83.
Shift to P and turn off ignition before l eav ­
ing car, oth erwi se v ehicl e can roll away
This message appears if the driver's door is
opened wh ile the ignition is switched on and
t h e selecto r lever is not in the P posi tion. Shift
the selecto r lever into the P pos ition and
switch off the ignit ion when you exit the vehi­
cl e. Otherw ise the vehicle cou ld roll. See also
r::¢,page 83.
Starting the engine if there is a
malfunction
It may not be possible to start the engine un­
der certain circumstances, for example if the
battery in the vehicle key is drained, if inter­
ference has affected the key or if there is a
system malfunction.
F ig . 80 Ce nter console/master key: starting the eng ine
i f there is a malfunct ion
Requirement: The message Key not recog­
nized . Hold back of ke y against marked are a.
See o wne r's manual.
must appear and the in-
dicator light
ml must switch on. .,..

Always apply brakes early. When driving
downhill, shift into a lower gear to use the en­
g ine braking effect to slow the vehicle . Use of
the brakes a lone can cause them to overheat
and fail.
Coolant temperature
The coolant temperature gauge ¢ page 11
must be observed carefully. The coo lant tem­
perature can increase if you drive on long in­
clines in a low gear at high engine speeds. Re­
duce your speed immediately if the LEDs in
the top part of the display turn on .
For more information about indicator lights,
refer to.
c> page 17 .
A WARNING
Anyone not properly restrained in a mov­
ing vehicle is at a much greater risk in an
accident . Never let anyone r ide in your car
who is not properly wearing the restra ints
provided by Aud i.
Trailer towing tips
Important to know
Your vehicle hand les different ly when towing
-
a trailer because of the additional weight and
d ifferent weight distribution . Safety, perform­
ance and economy w ill greatly depend on how
carefully you load your trailer and operate
your rig .
Before you actually tow your trailer, practice
turning, stopp ing and backing up in an area
away from traffic . Keep practicing until you
have become completely familiar with the way
your veh icle-trailer comb ination behaves and
responds .
Backing up is diff icult and requires practice .
Backing up with a tra iler genera lly requires
steer ing action opposite to that when backing
up your vehicle without a trailer.
Maintain a greater distance between your ve­
hicle and the one in front of you. You will need
more room to stop. To compensate for the
Trailer towing 211
trailer, you wi ll need a larger than normal
turning radius.
When passing, remember that you cannot ac­
ce lerate as fast as you norma lly would be­
cause of the added load. Make sure you have
enough room to pass. After passing, allow
plenty of room for your trailer before chang­
ing lanes again.
Avoid jerky starts, sharp turns or rapid lane
changes.
(0 Tips
- Do not tow a trailer during the break-in
period of your vehicle.
- If you tow a trailer, your Audi may re­
quire more frequent maintenance due to
the extra load¢
page 285.
Parking on a slope
Do not pork on a slope with a trailer . If it can­
not be avoided, do so only after doing the fol­
lowing:
When parking:
"' App ly the foot brake .
.,. Have someone place chocks under both the
veh icle and the trailer wheels.
"' With chocks in place, slowly release the
brakes until the wheel chocks absorb the
load .
.,. Turn the wheels towards the curb.
.,. Apply the parking brake.
.,. Select the P selector lever posit ion.
When restarting after parking:
.,. App ly the foot brake.
.,. Start the engine.
.,. Select the D/S selector lever position .
.,. Release the parking brake and slowly pull
out and away from the wheel chocks.
.,. Stop and have someone retr ieve the wheel
chocks .
111>
•
•

Checking and filling Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 191 Dr iver footwell: release lever
Fig. 192 Rocker switch under the hood
Make sure the wiper arms are not raised up
from the w indshield. Otherw ise the paint
could be damaged.
.. Pull the lever under the instrument panel in
the d irect ion of the arrow
~ fig. 191.
.. Raise the hood slightly~ &-
.. Press the rocker switc h under the hood up­
ward
~ fig. 192. This re leases the catch .
.. Open the hood .
A WARNING
Hot engine coo lant can burn you.
- To reduce the r isk 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.
Checkin g and fillin g 22 7
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment.
Wh ene ve r y ou must p erform an y wor k in the
e ng ine com pa rtm ent , for e xample checking
a nd filling diff ere nt fluids, th ere is a risk of
inju ry, burn s and accid ent s. To pr eve nt per­
so nal injury alwa ys observ e the foll owing
WARNING S. The engin e compartment of an y
v e hicle i s a h az a rdou s are a
~ ,&.
h WARNING
To help avoid injury, before yo u check any ­
thing under the hood:
- Turn off the engine.
- Sw itch off the ignition.
- Apply the parki ng brake.
- Move selector leve r to P (Park).
- Always let the engine cool down. Hot
components w ill burn skin on contact .
- To reduce the risk of being burned, never
open the hood if you see or hear steam
or coo la nt escaping from the engine
compa rtment. Wait unt il no steam or
coolant can be seen o r heard before care­
fu lly opening the hood.
- Keep ch ildren away from the engine com­
pa rtment.
- Never sp ill fluids on hot engine compo­
nents . They can cause a fire .
- Never touch the rad iator fan. The auxili­
ary electric fan is temperat ure controlled
a nd can sw itch on suddenly .
- Never open the coolant reservoir cap
when the engine is still warm. The cool­
a nt system is p ressu rized and hot cool­
a nt cou ld spray o ut.
- Protect your face, hands and arm from
steam or hot engine coolant by plac ing a
thick rag ove r the cap when you open the
coo lant rese rvoir.
- Do not remove the engine cover under
any circumstances. This inc reases the
ris k of burns.
- If work on the fue l system o r the elec tri ­
cal system is necessary: