engine overheat AUDI Q7 2017 Owner´s Manual

& WARNING
Do not assume the roads are free of ice based
on the outside temperature display. Be aware
that there may be ice on roads even when the
outs ide temperature is around 41 °F ( +S °C)
and that ice can increase the risk of accidents .
@ Tips
-Depending on vehicle equipment, the in­
strument illumination (needles and gauges)
may turn on when the lights are off and the
i gnition is sw itched on . The illumination for
the gauges reduces automat ically and even ­
tually turns off as brightness outside in­
creases . This funct ion reminds the driver to
turn the low beams on at the app ropr iate
time .
- You can se lect the u nits used for tempe ra­
tu re , speed and othe r measureme nts in the
Infotainment system¢
page 249.
-If your vehicle is stationary or if yo u are driv­
i ng at very low speeds, the temperat ure dis­
played may be s ligh tly higher than the ac­
tua l tempe ra ture outside due to the heat ra ­
diating from the engine.
- At temperatures below 41 °F (+S °C), a
snowflake symbol appears in front of the
temperature display¢.&. .
Coolant temperature indicator
The coolant tempe rature display (D ¢ page 10,
fig . 3
or ¢ page 10, fig. 4 only funct ions when
the ignition is switched on . To prevent engine
damage, please observe the follow ing notes
about t he temperature ranges.
Cold r ange
If only the L EDs at the bottom of the gauge turn
on, the engine has not reached operating tem­
perature yet . Avo id h igh engine speeds, full ac ­
celerat ion and heavy engine loads .
Normal range
~ The engine has reached its operating temper a-,.....
~ ture once the L EDs up to the center of the gauge
8 turn on . If the . indicator light in the instru-o :E: ' Coc kpit o ve rv iew
ment cluster d isp lay turns on, the coo lant tem ­
peratur e is too high
¢ page 26.
(D Note
-Aux iliary headlights and ot her a ccesso ries in
front o f the coo ling -air intake impa ir the
cooling effect of the coolant . This increases
the risk of the engine overheating dur ing
high outside temperat ures and heavy en­
gine load.
- The front spoiler a lso helps to distribute
cooling air correctly while driving. If the
spoiler is damaged, the cooling effect will
be impaired and the r isk of the eng ine over ­
heating will increase . See an authorized
Audi dealer or author ized Audi Service Fa­
cility for assistance .
@ Tips
Diesel engines: due to the h igh efficiency of
these engines, the engine may not a lways
r each operat ing temperatu re in cold outside
temperat ures . This is norm al and no t a cause
f or concern.
Tachometer
The ta chometer displays the engine speed in rev­
olutions per minute (RPM).
T he beg inning of t he red zone in the tachometer
indica tes the maxim um permissible engi ne speed
f o r all gea rs once the engi ne h as bee n broken in.
Be fore reach ing t his zone, you shou ld shift into
the next h ighest gear, select the D/S se lector lev­
er posit io n, or remove yo ur foot from the acc eler­
ator pedal.
(D Note
The need le in the tachometer @¢ page 10,
fig . 3
or ¢ page 10, fig . 4 may on ly be in t he
r ed area of the gauge for a sho rt time or there
i s a risk of engine damage . The location where
the red zone begins varies depending on the
engine.
IJII,,
11

Cockpit overv iew
@ For the sake of the environment
Upshifting early helps you to save fuel and re­
duces operating noise.
@ Tips
Depending on the engine : the engine speed
may be limited when the engine is cold -the
full engine output will not be ava ilable . When
the engine is at operating temperature, the
red area in the tachometer moves to a h igher
RPM range .
Fuel level
The display (j) ~ page 10, fig. 3 or ~ page 10,
fig. 4 only functions when the ign ition is swi tch­
ed on . When the display has reached the reserve
mark, a red LED turns on and the~ indicator
light t urns on~
page 31. The red LED wi ll blink
when the fuel level is very low .
For the tank capacity in you r vehicle , refer to the
Technical Data
~ page 379.
Cl) Note
Never drive until the tank is completely emp­
t y. The irregular supp ly of fuel that results
from that can cause engine misfires . Uncom­
busted fuel will then enter the exhaust sys ­
tem . This can cause overheating and damage
to the cata lytic converter .
Odometer
Fig. 5 Ins trum ent clust er: odo meter and re set bu tton
12
Tr ip odometer and odom ete r
The trip odometer shows the distance driven
since it was last reset. It can be used to measure
short distances .
The trip odometer ca n be reset to zero by press­
i ng the
Efil reset button.
The odometer shows the total distance that the
vehicle has been driven.
Malfunction indicat or
If there is a malfunc tion in the instrumen t clus­
ter,
DEF will appear in the trip odometer display .
Have the malfunction corrected as soon as possi ­
ble .
Cl) Tips
The units of measurement can be set in the
Infotainment system
~ page 249.
Multifunction steering
wheel
Operating
Fig . 6 D rive r in fo rma tion sy stem display
Fig . 7 L eft sid e of m ultifun ction ste ering wh eel
Requirement: th e ignition must be switched on. ..,.

u co ...... N r-... N ...... 0
0
:E: ' II Air suspension: malfunction! Please contact
Service
There is a system malfunction that can result in
rest ricted driving stability or reduced ground
clearance.
Drive to an authorized Audi dea le r or authorized
Aud i Service Facility imm ediately to have the
malfunct ion corrected.
II Air suspension: vehicle too low. Limited
ground clearance
T he ground clearance is very low due to a system
malfunction. Wait until the air suspens ion sys­
tem has restored normal ground clearance . Ot h­
e rwise, conditions such as an uneven road s urface
can lead to vehicle damage .
B Suspension: malfunction! You may continue
driving
There is a suspension control malfunction .
Drive to an authorized Audi dea ler or authorized
Audi Service Faci lity immediately to have the
malfunct ion corrected.
J=J,t !J Electronic Stabilization Control (ESC)
If the D] indicator light blinks while driving, the
ESC or ASR (Anti -Slip Regulation) is actively regu ­
l ating .
If thE:
G1 indicator light turns on, the system has
switched the ESC off. In this case, you can switch
the ignition off and then on to switch the ESC on
aga in . The ind icator l ight turns off when the sys­
tem is functioning fully.
If the
fil indicator light turns on, ESC was
sw itched off using the
!B ,« I button <=> page 148.
Stabilization control (ESC/ ABS): malfunction!
See owner's manual
If thE: DJ indicator light and the fJ]J (USA mod­
els)/ 11] (Canada models) ABS indicator light turn
on and the message appears, there is a malfunc­
tion in the ABS or the electronic differential lock.
This a lso causes the ESC to malfunct ion. The
brakes still funct ion w ith their normal power, but
ABS is not active . Cockpit overview
Drive to an authorized Audi dealer or authorized
Audi Service Facility immediate ly to have the
malfunction corrected.
(D Tips
For additional information on ESC and ABS,
see
¢ page 148.
!f Safety systems
The E,i indicator light monitors the safety sys­
tems.
If the m indicator light turns on or blinks, there
is a ma lfunction in a safety system .
Drive to an authorized Audi dealer or authorized
Audi Service Facility immed iate ly to have the
malfunction corrected.
,& WARNING ~ -
Have the safety systems inspected immedi­
ately. Otherwise, there is a r isk that the sys­
tems may not activate during a collision,
which increases the risk of serious injury or
death.
((D) Brake system
liJ Brakes overheating. Please shift to D
There was a heavy load on the brakes. P lace the
selector lever in the D/S pos ition in order to use
the engine braking effect and reduce the load on
the brakes.
wt:t./(0) Brake pads
II (USA models).!EiJ (Canada models) Brake
pads: wear limit reached. You can continue driv­
ing. Please contact Service
The brake pads are worn.
Drive to an authorized Audi dealer or authorized
Audi Service Facility as soon as possible to have
the malfunction corrected.
29

Cockpit over view
d::, Engine control
II Dri ve sys tem: malfunction! P lea se conta ct
Servic e
There is an engine control malfunction .
Drive s low ly to an authorized Audi dealer or au­
thor ized Audi Service Fac ility to have the engine
checked .
W Engine control (diesel engine)
Applies to: vehicles w ith diesel engines
The engine is preheat ing if the El indicato r light
turns on when the ign ition is switched on.
If the indicator light does not turn on or bli nks
while driving, there is an eng ine control malfunc ­
tion .
Immediately drive slowly to an authori zed Audi
dealer or authorized Audi Serv ice Facility to have
the malfunction corrected.
o Malfunction indicator lamp (MIL)
The malfunction indicato r lamp (M IL) is part of
the On-Board Diagnostic System (080 II). The
¢..ij c;ymbol turns on when the ign ition is switched
on and t urns off again on ce the eng ine is started
and r unning at a steady id le speed . This indicates
that the MIL is functioning correctly.
The indica to r li ght turns on if there is a malfunc­
tion in the engine electronics . See an a uthorized
Aud i dea ler o r authorized Audi Serv ice Facility to
have the ma lfunction corrected . For additiona l
information, see
c> page 21.
The indicator light can also turn on if the fuel fi ll­
er cap is not closed correctly ~
page 316.
effls> Diesel particulate filter
Applies to: veh icles w ith diesel engine and diesel particulate
filter
II Particul ate filt er: malfunction! See own er' s
manual
The diesel pa rticulate fi lter requires regene ra­
tion. To suppo rt the fil ter's se lf-cleani ng f unc­
tion :
30
Drive app roximate ly 15 m inutes at a minimum
speed of 37 mph (60 km/h) with the se lector lev­
er in S, and ma intain an engine speed of approxi­
mately 2,000 RPM. The result ing temperature in­
crease can burn off the soot in the filter. The ind i­
cator light will turn off when the cleaning has completed successfully .
If the indicator light does
not turn off, drive im­
med iate ly to an authorized Audi dealer or author­
i zed Audi Se rvice Facility to have the malfunct ion
corrected .
A WARNING
Always adapt your speed to the cur rent
weather, road and traffic cond it ions. You
should never d isobey traffic laws in order to
follow dr iving recommendations.
(D Tips
Fo r additional informat ion on the d iesel pa r­
ticulate filte r, see
c> page 321.
!?>i Engine speed limitation
II) Engine spe ed maximum XXXX RPM
The eng ine speed is automatically limited to the
speed displayed in the inst rument cl uste r. This
pro tects the engine from overheati ng.
The eng ine speed limita tion deactivates once the
engine is no longe r in the critical temperatu re
r ange and you have re leased the accelerator ped­
al once .
If the engine speed limitation was activated by
an engine cont rol malfunct ion, the
II ind icator
li ght a lso turns on. Make s ure the engine speed
does not go above the speed displayed, for exam ­
ple when downshif ting . Drive to an authori zed
Audi dealer or au thorized A udi Service Fac ility im ­
med iate ly to have the ma lfunction corrected.
(D Tips
Depending on the engine: the engine speed
may be limited when the eng ine is co ld -the
full engine output will not be available. When
the eng ine is at operating temperature, the
II>

Driving
engaged, for examp le when you notice that the
next traffic light is red . This produces an engine
braking effect, wh ich helps to protect the brakes
and tires and reduces the emissions and fuel con­
sumpt ion to zero (fuel shut-off during decelera­
tion) .
Shift efficientl y
Upshifting earlier is an effective way to save fuel.
Staying in a gear too long uses fue l unnecessari­
ly .
Press down on the acce lerator peda l slowly and
avoid "k ick -down".
Avoid full acceleration
You sho uld rarely t ravel a t the maximum vehicle
speed. High speeds cause a disp ropor tionately
h igh increase in fuel consumption, emissions and
traffic noise . Driving more slowly saves fue l.
Reduce idling time
The Start/Stop system* helps to reduce the id ling
time automatically. In vehicles wi tho ut the Start/
Stop system*, it is efficient to switch the engine
off when stopped at rai lroad crossings and long
red lights . Stopping the engine for 30 -40 sec ­
onds already saves more fuel than the amount of
extra fuel needed to restart the eng ine.
I t takes a very long time in idle to wa rm the en ­
gine up to operating temperature . Wear and
emissions are especially high in the wa rm -up
phase. Therefore, yo u should begin driving im­
mediately after starting the engine. Avoid high
RPMs while do ing th is .
Have ma intenance performed regularly
By having maintenance performed regu larly on
your veh icle, you can help to reduce f uel con­
sumpt ion before yo u even start to dr ive. The
maintenance condition of your vehicle not only
affects traffic safety and long -term value but a l­
so impacts f uel consumption . A poorly main­
tained engine can lead to f uel consumpt ion that
is 10% higher tha n normal.
80
Avoid short trips
The eng ine and exh aust clean ing syste m mus t
r each their op tima l operating temperatu re to ef­
fectively reduce consumption and emissions.
A cold engine uses a d isp roportion ately high
amoun t of fue l. The e ngine re aches opera ting
temperat ure and cons umption norma lizes on ly
after approximate ly 2.S mi les ( 4 km).
Check the tire pressure
To save fue l, ma ke sure the t ires are always in­
flated to the corre ct press ure
~ page 343. The
f uel consumpt ion c an increase by S% if the p res­
s ur e is only 0 .S bar too low. Due to the inc reased
rol ling resistance, low tire pressures w ill also
l ead to greater tire wear and will affect driving
behavior.
Do not drive on winter tires year -round, as this
will consume up to 10% more f ue l.
Eliminate unnecessary weight
Since eve ry po und of ext ra weight increases f uel
consump tion, a quick inspect io n of the luggage
compartment may be wo rth it to avoid unneces ­
sary weight .
When not be ing used, a roof ra ck sho uld be re­
moved to decrease the w ind resis tance of the ve­
hicle . This will save yo u approx ima tely 12% fue l
at speeds from 62 -7S mph (100 -120 km/h) .
Save energy
The engine d rives the generator, which generates
electri city; the f uel consumpt ion also increases
with t he deman d for e lec tricity . T he refore, sw itch
electrica l eq uipment o ff when you no longe r
need it . Examples of eq uipment that uses a lot of
energy are air blowers at a high setting, the rear
window defogger and seat heating* .
CJ) Note
Do not leave engine idling unattended after
starting. If warning lights s hould come on to
i ndicate imprope r operation, they would go
unheeded. Extended idling also prod uces
h eat, which could result in overheating or
other damage to the vehicle or othe r proper­
ty .

u (0 ...... N r--. N ...... 0
0
:E .. Push the release button ¢ fig. 269 and careful­
ly unscrew the cap to the left until you feel re­
sistance ¢,&. .
.. Push the release button again and remove the
cap completely .
.. Add coolant mixed in the correct ratio
¢page 328 up to the MAX marking .
.. Make sure that the fluid level remains stable .
Add more coolant if necessary .
.,. Turn the cap to the right to secure it until yo u
feel resistance a second time.
Coolant loss usually indicates there is a leak . Im­
mediately drive your vehicle to an authorized
Audi dealer or authorized Aud i Service Facility
and have the cooling system inspected. If the
cooling system is not leaking, a loss can come
from the coolant boiling through overheating
and being pushed out of the cooling system.
A WARNING
-The cooling system is under pressure. Do
not open the coolant expansion tank cap
when the eng ine is hot. This increases the
risk of burns .
- The coolant additive and the coolant can be
dangerous to your health. For this 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 ign ition is switched off, which
increases the risk of injury.
CD Note
Do not add coolant if the expansion tank is
empty. There may be air in the cooling sys­
tem, which increases the risk of engine dam­
age . If this is the case, do not continue driv­
ing . See an authorized Audi dealer or author­
ized Audi Service Facility for assistance.
Checking and Filling
Brake fluid
Fig. 270 Engine compartment: cap on brake fluid reservo ir
Observe the safety precautions¢ A in Working
in the engine compartment on page 322 .
Checking the brake fluid level
.. Read the brake fluid level on the brake fluid
reservoir ¢
page 324, fig . 267. The brake fluid
level must be between the MIN and MAX mark­
ings ¢,& .
The brake fluid level is monitored automatically.
Changing the brake fluid
Have the brake fluid changed regularly by an au­
thorized Audi dealer or authorized Audi Service Facility.
A WARNING
- If the brake flu id level is below the MIN
marking, it can impair the braking effect
and driving safety, wh ich increase the risk of
an accident. Do not continue dr iving. See an
authorized Audi dealer or authorized Audi
Serv ice Facility for assistance.
- If the brake fluid is old, bubbles may form
in the brake system dur ing heavy braking.
This would impair braking performance and
driving safety, which increases the risk of an
accident.
- To ensure the brake system functions cor­
rectly, only use brake fluids that comp ly
with VW standard 501 14 or FMVSS-116 DOT 4.
CD Note
-If the brake flu id l eve l is above the MAX
marking, brake fluid may leak out over the
329

Emergency assistance
-If a tire pressure of 29 psi (200 kPA) cannot
reached after inflating for 6 minutes, then
the tire is too severely damaged. Do not
continue driving.
- If the tire cannot be repaired with the tire
sealant, see an authorized Audi dealer or au­
thorized Audi Service Facility for ass istance.
(D} Tips
Do not operate the compressor for more than
six minutes continuously, or it can overheat.
Once the compressor has cooled, you can con­
tinue to use it .
Completing
"' Adhere the sticke r that says "max . SO mph
(max. 80 km/h)" that is provided w ith the tir e
mobility kit within the driver's fie ld of vision.
"'S top the vehicle after driving for about 10 mi­
nutes and check the tire pressure .
"' If the tire pressure is lower than 19 psi (130
kPA), then the tire is too severely damaged. Do
not continue driving.
A WARNING
Pay attention to the following after repairing
the tire :
- Do not drive faster than SO mph (80 km/h).
- Avoid hard acceleration, braking sharply, and fast cornering.
- The vehicle may become more difficult to
control.
- If the tire is too severely damaged, see an
authorized Audi dealer or authorized Aud i
Service Facility for assistance .
@ For the sake of the environment
You can give the used tire sealant bottle to an
authorized Audi dealer or authorized Audi
Service Facility for disposal.
@ Tips
Remember to obtain a new bottle of sealant
from an authorized Audi dea ler or authorized
Audi Service Facility after repairing a tire.
362
Replacing a wheel
' Preparation
You must complete the preparation before
changing a tire .
"'Read and follow the important safety precau-
tions¢
page 360.
"' Set the park ing brake.
"' Select the P selector lever posit ion.
"' When towing a trailer: disconnect the trailer
from your vehicle.
"' Lay out the vehicle tool kit¢
page 360 and the
spare tire.
"' Switch on wheel change mode* in the Infotain­
ment system:
! MENUI button> Vehicle> left
control button >
Service & checks > Air suspen­
sion: wheel change.
"'Switch the ignition off.
The vehicle jack mode* switches off automatical­ ly at speeds above 6 mph (10 km/h).
A WARNING
When using the ve hicle jack* on a road with a
steep hill or offroad, you must take extra pre­
cautions to prevent the vehicle from rolling. Use suitable objects to block the front and
back of the wheel that is diagonal from the
wheel with the flat tire.
A WARNING
You or your passengers could be injured while
changing a whee l if you do not follow these
safety precautions:
- If you have a flat tire, move a safe distance
off the road. Turn off the engine, turn the
emergency f lashers on and use other warn­
ing devices to alert other motorists.
- Make sure that passengers wait in a safe
place away from the vehicle and well away
from the road and traffic.
- To help prevent the vehicle from moving
suddenly and possibly slipping off the jack*,
always fully set the parking brake and block
the front and back of the wheel diagonally opposite the wheel being changed. When
one front wheel is lifted off the ground,
~