2015 AUDI Q7 engine overheat

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Instrument s and warning /indicator lights 11
too high, or the coolant level is too low
¢ page 32.
If the needle is well in the upper area of the
ga uge , the coolant temperature is too high.
Stop the vehicle , switch the eng ine off and
allow the engine to cool.
If the warning light
comes on again after driving a short distance,
contact an authorized dealer.
A WARNING
- Always observe the warning in
¢
page 256, before opening the hood
and checking the engine coolant level.
- Never open the engine hood if you see or
hear steam, or if you see engine coolant
dr ipping from the engine compartment.
You could bu rn yourself. Let the engine
cool off first until you can no longer see
or hear steam or coolant escaping.
0 Note
- Mount ing additional lights or accessories
i n front of the a ir inlets reduces the cool­
i ng effect of the radiator. At h igh outside
temperatures or high eng ine load , the
engine could overheat.
- The front spo iler has been designed to
properly distribute the cooling air when
the veh icle is moving. If the spoiler is
damaged, this cou ld reduce the cooling
effect and the engine could then over­ heat. Ask your authorized Audi dealer for
ass istance.
Tachometer (engine rev counter)
The tachometer indicates the engine RPM
(revolutions per minutes).
The tachometer @¢ page 10, fig. 3 is the left
of the two large clock-type displays.
The engine turns at a speed 1,000
times the
single digit in the display, e.g . if the needle is
pointing at the "2" the engine is turning at
2,000 RPM.
If engine RPM drops be low 1,500, you should
downshift to the next lower gear. The red area at
the end of the scale indicates maximum
permissible engine RPM after the break-in pe­
riod. Before reaching this area , move these­
lector lever to position D (Drive) or ease your
foot off the accelerator pedal.
(D Note
The tachometer needle should not move
into the red range. If it does, then only for
a very short per iod of t i me. You could
damage your engine by driving at high RPM .
@) For the sake of the environment
Upshifting early saves fuel and reduces en­
gine noise .
Digital clock with date display
Fig. 4 In st ru m en t cluster : time a nd da te
The date, time of day, and time and date for ­
mat can be set in the MMI. You can learn more
about this in the MMI manual.
(D Tips
-When open the driver door, the time,
date and odometer are disp layed for an
add itional 30 seconds.
- You can also call up the display with the
!CHECK I button q page 12 while the ig­
nition is sw itched off.

12 Instruments and warning/indicator lights
Speedometer with odometer
The speedometer shows you the vehicle
speed, and the odometer shows you how
many miles (kilometers) you have driven.
Fig. 5 Instrument cluster Odometer and reset button
The odometer and trip odometer are located
inside the speedometer.
- USA mode ls - Miles
- Canada models -Kilometers
You can switch the display from miles to kilo­ meters and vice versa via the MMI. You can
find out more in the MMI manual.
Lower odometer
The lower odometer shows the total number
of mi les (kilometers) driven.
Upper odometer (trip odometer)
The upper odometer shows the tota l number
of mi les (kilometers) driven since you last re­
set the odometer to zero. You can use this od­
ometer when you want to keep track of how many miles (k ilometers) you have driven for a
single trip or errand. The last digit indicates
1/10 of a mile (100 meters).
You can reset the trip odometer to zero by
pressing the Reset button
~o.
Malfunction message
If there is a malfunction somewhere in the in­
strument cluster,
dEF will appear in the trip
odometer and will stay on. Contact your au ­
thorized Audi dealer to have the problem cor­
rected.
(D Tips
- When you open t he driver door, the time,
date and odometer are disp layed for an
add itiona l 30 seconds.
- You can also call up the display with the
I CHECK I button c> page 12 while the ig­
nition is switched off.
Fuel gauge
The fue l gauge only works when the ignition is
on .
When the needle reaches the reserve mark,
the
c> page 35 mJ symbol appears in the in­
strument cluster d isplay as well as the mes ­
sage
Please refuel. This message is meant to
remind you to
refuel.
The total tank capacity of your vehicle is listed
in
.:> page 325 .
@ Note
Never run the tank completely dry. An ir­
regular supply of fuel can cause engine
misfiring and fuel could enter the exhaust
system. The catalytic converter could then
overheat and be damaged.
~ button
Fig. 6 CHECK b utto n in the instrument clus ter
The !CHECK I button performs the follow ing
funct ions:
Switching on the clock and odometer
With the ignition turned off, the odometer
reading and the dig ita l clock with date display ..,_

112 On the road
The parking brake warning light. (USA)/ .
(CON) illuminates when the parking brake is
set and you switch on the ignition.
A WARNING
-
Always release the parking brake com­
pletely. A partially engaged brake will
overheat the rear brakes, reduce their ef­
fectiveness and cause excessive wear . This
could lead to brake failure and an accident .
(D Note
Only after the vehicle has come to com­
plete stop, should you firmly set the park­
ing brake and move the selector lever into
P.
Parking
• Press the brake pedal to stop the vehicle .
• Apply the parking brake firmly
r=,> page 111,
fig. 126 @.
• Move the selector lever to P.
.. Turn the engine off
r=,> _& .
.. When on inclines or declines, turn the steer­
ing wheel so that the vehicle will roll into
the curb if it begins to move.
A WARNING
This is how you can reduce the risk of in­
jury when leaving your vehicle.
- Never park the vehicle where it can come
in contact with dry grass, spilled fuel or
any other flammable materials.
- When parking on hills, always turn the
wheels so that the front wheels will first
roll into the curb, if the vehicle should
start to roll.
- Never allow anyone - especially small
children - to remain in the vehicle when
it is locked. Locked doors make it more
difficult for rescuers to access the pas­
senger compartment in the event of an
emergency. Danger to life!
- Never leave children unsupervised in the
vehicle. Children could release the park­
ing brake or move the gearshift lever out
-
of gear. The vehicle could start to roll
away and cause an accident.
- No matter what the season is, the tem­
perature in a parked vehicle can reach
dangerous levels.
Q) Note
- Please exercise care when you park your
vehicle in parking areas with parking bar­
riers or curbs. Parking barriers and curbs
vary in height and could damage your
bumper and related components as the
front of your vehicle moves over a barrier
or curb that is too high, as you park or as
you back out of a parking spot. In order
to be sure that no such damage can oc­
cur, you may wish to stop short of having
the front tires of your car touch the park­
ing barrier or curb.
- Please also exercise exceptional care
when you drive up or down steep ramps
or drive over curbs or other obstacles, for
which the vehicle is not designed, be­
cause components of th@ vehicle close to
the ground, such as bumper covers,
spoilers and suspension and exhaust sys­
tem components, may become dam­
aged.
Starting on hills
Hill Hold makes it easier to start on hills.
The system is activated when the brake pedal
is depressed
for a few seconds . For this, the
vehicle must be standing in uphill driving di­ rection.
After releasing the brake pedal, the brake power is held for a
brief moment to prevent
the vehicle from rolling back when starting. At
this time, you can easily begin to move your
vehicle .
A WARNING
- If you did not begin moving immediately
after releasing the brake pedal, under
certain circumstances, the vehicle would
begin to roll backward. Depress the ..,.

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Driving the automatic transmission
Fig. 162 Shift g ate on the center co nso le: se lector lev­
er wi th release butt on
Starting the engine
~ The selector lever must be in P or N .
Starting off
~ Press and hold the brake pedal.
~ Press and hold the release button in these­
lector lever handle , select the desired selec ­
tor lever pos ition such as D and release the
button .
~ Wait briefly until the transmission has shift­
ed (you will feel a slight movement).
~ Remove your foot from the brake pedal and
acce lerate .
Stopping temporarily
~ Keep the vehicle stationary us ing the brak­
ing pedal, for examp le at traffic lights.
~ Do not press the accelerato r pedal when do -
ing this.
Stopping /parking
If the selector lever is not in the P position
when you open the driver's door, the vehicle
could roll. The message
Transmi ssion : Car
may roll! Shift to park! appears.
~ Press and hold the brake pedal unt il the ve­
hicle has come to a complete stop.
~ Set the parking brake firmly 9 page 112,
Parking.
~ Se lect the P selector lever position 9 &.-
Stopping on an incline
~ Always press the brake pedal to hold the ve­
hicle in place and prevent it from "rolling
back"
9 ,& . Do not try to prevent the vehi-
Autom atic transm ission 141
cle from "rolling back" when a gear is en­
gaged by increasing the engine speed
c::>(D.
Under certain circumstances, such as driving
in the mountains, it may be usefu l to switch
temporarily to the manual shift program in or­
der to adjust the gears to the driving condi­
tions by hand
c::> page 142 .
On slopes, activate the parking brake first and
then move the selector lever to the P position.
This prevents too much stress from being
placed on the locking mechanism.
A WARNING
- Unintended vehicle movement can cause
serious injury.
- Never leave your vehicle with the engine
running while in gear.
If you must leave
your veh icle when the engine is running,
apply the park ing brake firmly and move
the selector lever to P.
- Power is still transmitted to the wheels
when the engine is running at idle. To
prevent the vehicle from "c reeping ", you
must keep your foot on the brake when
the engine is running and the selector
lever is in D, Sor R or "tiptronic" mode is
selected.
- Do not press the accelerator pedal when
changing the se lector lever position
while the vehicle is stationary and the engine is running.
- Never shift into R or P while driving.
- Before driving down a steep slope, re-
duce your speed and shift into a lower
gear with "tiptronic".
- Do not ride the brakes or press the bra ke
pedal too often or too long when driving
down a hi ll. Constant braking causes the
brakes to overheat and substantially re­
duces braking performance, increases braking distance or causes complete fa il·
ure of the brake system.
- To prevent the vehicle from rolling back
when stopping on inclines, always hold it
in place with the brake pedal or parking
brake . .,..

142 Automatic tr an smis sion
- Never hold the veh icle on an incl ine with
a slipp ing clutch . The clutch opens auto­
matically when it becomes too hot from
the overload. An indicator lamp@] illu­
minates and a dr iver message appears
c!;> page 143 when the clutch is overload­
ed.
- If the engine must remain running, never
hav e any driving pos ition engaged when
che cking under the hood. Make sure the
selector lever has secure ly engaged and
is locked in P with the parking bra ke
firmly set¢
page 256. Otherwise, any
increase in engine speed may set the ve­
hicle in motion, even with the parking
brake applied.
(D Note
- When stopping on an incline, do not try
to hold the vehicle in place by pressing
the accelerator peda l while a driving gear
is selected. Th is can cause the transm is­
s io n to overheat and can damage it. Acti­
vate the park ing brake or p ress the brake
pedal to prevent the vehicle from ro lling .
- Allow ing the vehicle to roll when the en ­
gine is stopped and the selector lever is i n
N w ill damage the transmiss ion be­
cause it is no t lub rica ted under those c ir­
cumst ances.
Hill descent control
The hill d escent control system assists the
driver when driving down declines.
H ill desce nt co ntrol is activated when these­
lecto r lever is in D/S a nd you press the b rake
pedal. The tra nsmission a utomatically se lects
a gea r that is suitab le for the incline. Hill de­
scent control tries to maintain the speed ach­
i eved at the t ime of brak ing, within physical
a nd techn ica l limitations . It may st ill be nec­
essary to adjust the speed with the brakes.
H ill descent co ntrol sw it ches off once the de ­
cline levels out or you press t he accelerator
pedal. When the speed is set in the cruise con
trol
system
c!;> page 113, hill descent contro l is al­
so act ivated.
A WARNING
--
Hill descent control cannot overcome
physical lim itations, so it may not be ab le
to maintai n a co nstant speed under all
conditions . A lways be ready to apply the
b rakes .
· Manual shift program
Using the manual shift program you can
manually select gears.
Fig. 1 63 Center conso le: sh ift in g the gears m an ually
Fig . 1 64 St ee rin g whee l: S h ift paddle s•
Gear selection with selector lever
The tiptronic mode can be sel ected either w ith
the vehicle stat io na ry or on t he move.
.,. Push the se lector lever to the right from D.
An
M appears in the instrument cluster dis ­
play as soon as the transmission has shifted .
.,. To upshift, push the se lecto r lever forwa rd
t o the plu s position
0 c!;> fig. 163 .
.,. To downsh ift, pus h the lever to the min us
position
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Intelligent technology Notice about data
recorded by vehicle
control modules
Your vehicle is not equipped with an Event Da­
ta Recorder (EDR), installed by some manu­
facturers for the express purpose of capturing
data for retrieval after an accident or crash
event. EDRs are sometimes called "crash re­
corders".
Some state laws restrict the retr ieval or down­
loading of data stored by EDRs that were in­
stalled in a vehicle for the express purpose of
retrieving data after an accident or crash
event without the owner's consent.
Although your vehicle is not equipped with an
EDR, it is equipped with a number of electron­
ic control modules for various vehicle systems
such as, for example, engine function, emis­
sion control, as well as for the airbags and
safety belts.
These electronic control modules also record
vehicle-related data during norma l vehicle op­
eration for diagnostic and repair purposes.
The recording capacity of the electronic con­
trol modules is limited to data (no sound is re­
corded) and only a small amount of data is ac­
tually recorded over a very limited period of
time and stored when a system fault or other
condition is sensed by a control unit. Some of
the data then stored may relate to vehicle
speed, direction, braking as we ll as restraint
system use and performance in the event of a
crash or other condition. Stored data can only be read and downloaded with special equip­
ment.
Electronic Stabilization
Control (ESC)
Description
The Electronic Stabilization Control (ESC) rein­
forces driver safety. It reduces the risk of slip ­
ping and improves driving stability. ESC de­
tects critical s ituations such as the vehicle
Intelligent technology 223
oversteering and understeering or the whee ls
spinning . The vehicle is stabilized by applying
the brakes or reducing eng ine torque . Once
the ESC is active, the indicator light
GI blinks
in the instrument cluster.
The following systems are integrated in the
ESC:
Anti-lock brake system (ABS)
ABS prevents the wheels from locking up
when brak ing. The vehicle can sti ll be steered
even during hard braking. Apply steady pres­
sure to the brake peda l. Do not pump the ped­
al. A pulsing in the brake pedal indicates that
the system is helping you to brake the vehicle.
Brake assist system
The brake assist system can decrease braking
distance.
It increases braking power when the
driver presses the brake peda l quickly in emer­
gency situations. You must press and hold the
brake pedal until the situation is over. In
vehicles with adaptive cruise control*, the
brake assist system is more sensitive if the
distance detected to the vehicle ahead is too
small.
Anti-slip regulation (ASR)
ASR reduces engine power when the drive
wheels begin to spin and adapts the force to
the road conditions. This makes it easier to
start, accelerate and dr ive up hi lls.
Electronic differential lock (EDL)
The EDL brakes wheels that are spinning and
transfers the drive power to the other wheels.
This function is not available at higher speeds .
In extreme cases, EDL automatically switches
off to help keep the brake on the braked wheel
from overheating. EDL will switch on again au­
tomatically when conditions have returned to
normal.
A WARNING
- The ESC and its integrated systems can­
not overcome the laws of physics. This is
especially important on slippery or wet
~
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226 Intellig ent technol ogy
firm ly a few times from a mode rately high
speed ¢.&. .
Faults in the brake system
If you should notice a sudden increase in
brake peda l travel, t hen one of the two bra ke
circ uits may have failed ¢.&. .
Low brak e flu id le vel
Malfunct ions can occur in the brake system if
the brake fluid level is too low . T he brake fluid
l eve l is monitored electronically .
Bra ke boo ster
The brake booster increases the pressure that
you generate w ith the brake pedal. It only op­
erates while the eng ine is running ¢,&. .
Brake lining we ar sta tu s
Brake lining wear may be checked by visual in­
spection of the condition of the brake pads
through the openings in the wheel. If neces­
sary, the wheel may be removed for this in­
spection ¢
page 307, Changing a wheel.
A WARNING
- You should perfo rm bra king maneuve rs
for the p urpose of clean ing the b rake
system on ly if road condit ions permit.
Other road users must not be put at risk -
you may cause an accident!
- Be fore descending a steep grade, reduce
speed and shift transmission into a lower
gear or lower driving range. Do not ride
the brakes or hold the pedal down too long or too often. This could cause the
brakes to get hot and dimin ish braking
efficiency .
- Do not "ride the brakes" by resting your
foot on the pedal when you do not intend
to brake . Th is may cause the brakes to
overheat, premature wear and inc reased
stopping distance.
- Under certain climat ic and operating
condit ions such as passing through wa­
ter, driving in heavy ra in or after wash ing
the vehicle, the effect iveness of the
brakes can be reduced . In winter, ice can accumu
late on the brake pads, linings,
discs and drums. Carefully app ly brakes
for a test. Brakes will dry and ice coat­ ings w ill be cleaned off after a few care­
ful brake applicat ions .
- Driving for an extended period of time on
salt-covered roads without using your
brakes can also affect braking efficiency .
Clean off accumulated salt coating from
b rake discs and pads with a few ca reful
brake applications.
- If you damage the front spoiler, or if you
i n stall a diffe rent spoiler, be s ure the a ir
f low to the front brakes is not obs truct­
ed . Otherwise the brake system could
overheat reducing the effectiveness of
the entire brake system .
- Fai lure of one brake circuit will impai r
the braking capability resulting in an in­
creased stopping distance . Avoid driving
the vehicle and have it towed to the near­
est authorized Audi dea ler or qualified
workshop .
- Never let the ve hicle roll to a stop with
the engine shut off.
- If the brake booster is not working, the
brake peda l must be pressed cons idera­
b ly harder to make up for the lack of
booster assistance.
Servotronic - advanced power steering system
The power steering systems uses the power of
the running engine to allow precise steering
with Little effort.
T he advanced Servotronic power steer ing sys ­
tem senses the road speed and electronica lly
adjusts power assistance to provide comforta­
ble and safe steering response exactly match­
ed to the vehicle speed.
Power s teer ing will not work if the engine is
off. As a result, the steering wheel will be hard
to turn.
T he powe r steering fluid level is checked d ur-
ing the sched uled maintenance services . ..,.

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(D Note
If there is an electronic malfunction, ser­
votronic
w ill still function like a conven­
tional power steer ing system, providing a
constant steer ing support force that is no
longer proportionate to the vehicle speed.
This is most noticeable when turning the
steer ing whee l at low speeds (for examp le
when parking), -more effo rt will be re­
qui red than usual.
- Be awa re of the different than usual
stee ring response and adjust your stee r­
i ng force accord ingly .
- Have the problem checked and set right
by an Aud i dealer as soon as possible .
(D Tips
-When the engine is runn ing, never hold
the steer ing whee l turned a ll the way to
the right or to the left for longer than 15
seconds. The power s teer ing p ump w ill
overheat the hydraulic fluid if you keep ho lding the steering whee l turned a ll the
way . This is likely to damage the power
steering system .
- If the power steer ing system should fai l
entirely, or if the engine is not running
(for example, while being towed), you
will still be ab le to steer the vehicle .
However,
considerably more effort will
be required to do so .
- If the power steering system should
have a leak, or is not functioning proper­
l y, contact your authorized Aud i dealer
i mmediately.
- The power steering system requires a
spec ially formulated hydraulic fluid . T he
power steer ing reservo ir is the one locat­
ed farthest to the rear on the left side o f
the engine compartment
~ page 258.
The correct fluid leve l in the reservoir is
important for proper functioning of the
power steer ing .
Int ellig ent technolog y 22 7
Driving with your
quattro
With all-wheel drive , all four wheels are driv­
en .
Gener al info rmation
With all-wheel drive, power is distributed to
all four wheels. This happens au toma tically
depending on your driving style and the road
cond it ions at the time . See also
~ page 223.
Winter t i res
When d riving in the winter, your vehicle with
a ll-wheel drive has an advan tage, even with
regular tires. In winter road conditions it may
be advisable to mount winter tires (or all -sea ­
son tires) for improved driveability and brak­
ing: these tires must be mounted on
a ll four
wh eels. See also ~ page 298, Winter tires.
Tire ch ains
Where tire chains are mandatory on certain
roads, this normally also applies to veh icles
with all-wheel drive~
page 299, Snow
chains .
Replacing whee ls/tire s
Vehicles with all-wheel drive must always
have tires of the same s ize . Also avoid tires
with different tread depths . For deta ils see
page ~
page 291, New tires and replacing
tires and wheels.
.8, WARNING
A lways adj ust yo ur dr iv ing to road and t ra f­
fic conditions . Do not let the extra sa fety
afforded by all-wheel drive tempt you into
taking extra risks.
- Altho ugh the a ll-wheel drive is very ef ­
fective, always remember that braking
capacity is limited by tire traction . You
should therefore not drive at excessive
speeds on icy or slippery road surfaces.
- On wet road surfaces, be careful not to
drive too fast because the front wheels
could begin to slide on top of the water
(aquaplaning). If th is should occur, you •
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