2017 AUDI Q7 check engine

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 .

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:E during this stop phase. The eng ine will restart
automatically when needed.
The Start/Stop system is automatically activ ated
as soon as the igni tion is switched on .
Basic requirements for Start /Stop mode
- The driver's door must be closed.
- The driver 's sea t belt much be fas tened .
- The hood must be closed .
- The vehicle must have driven faster than 2 mph
(3 km/h) since the last time it stopped.
- A trailer must not be hitched to the vehicle .
I f you leave the vehicle during a stop phase, the
e ngine can be restarted withi n app rox imately 30
seconds if the following requirements are met:
- The driver's door must be closed, the dr iver
must be wear ing the safety belt and the brake
peda l mus t be p ressed . Or:
- The driver's door must be closed, the bra ke
pedal mus t be pressed and a gear m ust be se­
lected .
(D Note
Always sw itch the Start/Stop system off when
driving through water~
page 84.
@ Tips
The engine stops shortly before the vehicle
comes to a stop
1>.
Stopping /starting the engine
Applies to: vehicles with Start/Stop system
Fig . 88 Inst rument cluste r: engine sw itched off (stop
p h ase )
ll Mark et-sp ecific
D rivi ng
.,. Brake the vehicle to a stop. The engine stops
shortly before the vehicle comes to a stop or if
the vehicle is stat ionary
l) . Keep your foot on
the brake pedal. The
[I] indicator light appears
in the status line at the bottom of the instru­
ment cluster display . T he need le in the tachom ­
eter also moves into the
READY1l posit io n .
.,. The engine starts again when you take your
foot off the brake pedal. The indicator light
t urns off .
Additional inform ation
The eng ine stops in the P, N and D selector lever
positions .
If you select the R position during a Stop phase,
the engine will star t again .
Se lect the P position quickly to prevent the en­
gine from sta rting unintentionally when shifting
through R .
You can determ ine for yourse lf if the eng ine will
stop or not by reducing or increasing the amount
of force you use to press the brake pedal. For ex­
ample, if you only lightly pre ss on the brake ped­
al in stop-and-go traffic or when turn ing, the en­
gine w ill not switch off when the vehicle is sta ­
t ionary . As soon as you press the brake down
harder, the engine w ill switch off .
(D Tips
- Press the brake peda l during a Stop phase
to keep the vehicle from rolling.
- The ignition will turn off if you press the
!S TART ENGINE STOPI button during a stop
phase . The needle in the tachometer moves
into the
OFF position.
Gene ral information
Applies to: vehicles with Start/Stop system
The standard Start/Stop mode can be canceled
for various system-related reasons .
Engine doe s not switch off
Before and during each stop phase, the system
checks if certain conditions have been met . If the
liJl,,
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:E: ' _& WARNING
-If you do not begin driving immediately or
the engine stalls after releasing the brake pedal, your vehicle may begin to roll back­
ward . Press the brake pedal or set the park­
ing brake immed iately.
- The intelligent technology of hill hold assist
cannot overcome the lim itations imposed by
natural physical laws. The increased comfort
offered by hill hold ass ist should not cause
you to take safety risks .
- Hi ll hold assist cannot hold the veh icle in
place on all hills (for example, if the ground
is slippery or icy).
- To reduce the risk of an accident, always
make sure the vehicle is situated safely
wh ile stat ionary.
Off road driving
General information
The electronic stabilization contro l (ESC) func­
tions were enhanced for driving offroad. Offroad
mode can be activated when driving in situat ions
where slippage or a differential lock function is
necessary
Q page 149. The hill descent ass ist is
a lso available, which automatically brakes the ve­
hicle and maintains a constant speed as a result
~page 150. In addition, your Audi prov ides con­
tinuous all wheel drive.
H owever , your Aud i is not a purely offroad vehi­
cle . Your vehicle was not designed to d rive unde r
extreme ope rating conditions such as driving in
an expedition style.
Only drive in terrain that is suitable for the vehi­
cle and your driving ability . Never take any un­
necessary risks!
Before driving offroad
- Check the eng ine oil level, the tire pressure, the
coolant level and the fluid level in the washer
fluid reservoir .
- Store pieces of luggage and other objects in the
luggage compartment and secure them from
s li ding out of place.
Driving
After driving offroad
-After driving offroad, remove branches and
other debris from the radiator grille, under­
body, and wheels . Look especially for foreign
objects (such as stones) that may be stuck in
the tire tread.
- Clean the vehicle body and underbody and in­
spect the vehicle for possible damage.
- Clean the windows, headlights, tail lights and
the license plate if they are dirty.
- Per form a brake test (especially after driving
through water).
_& WARNING
- Be especially cautious and aware when driv­
ing under difficu lt cond it ions and when off­
road. Veh icle damage and injuries may occur
when dr iv ing at excessively high speeds or
with incorrect driving maneuvers.
- Always adjust your speed and driving style
to the roads, terrain, traffic and weather
conditions . Drive especially slowly if there is
low visibility when offroad.
- Please note that the wheels can sp in more
and the vehicle can swerve when in offroad
mode, espec ially when the road is slippery
or has loose surface material.
- Driving stability is reduced when in offroad
mode.
@ For the sake of the environment
Avoid harming the environment and show
consideration for nature .
(D Tips
Only drive where it is permitted and always
stay on the prov ided roads and paths .
Explanation of technical terms
The following data is based on idea l conditions .
T he values may vary depending on the load,
ground composition and the environment. The
driver is therefore responsible for deciding
whether a vehicle can hand le a specific situation
¢ £ . ~
89

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:E: ' characteristics of your vehicle, which could
cause a crash resulting in serious injury or
death.
Operating instructions
Trailer towing weights
The maximum permissible unbraked trailer
weight is 1,650 lbs (750 kg) .
The maximum permissible braked trailer weight
is:
- Q7 2.0: 5,500 lbs (2,500 kg)
- Q7 3 .0: 7,700 lbs (3,500 kg)
These specifications apply when driving on roads having an incline of less than 12% .
Permissible tongue load
For best vehicle handling under these changed
conditions, adjust the trailer load so that the
tongue load is at the maximum allowable or
slightly lower . You can get an approximation of
the tongue load with a bathroom scale or you can
measure the load at a trucking company or
weighing station.
The maximum permissible load on the ball hitch may not exceed:
- Q7 2.0: 550 lbs (250 kg)
- Q7 3 .0: 770 lbs (350 kg)
It is recommended to use the maximum permis­
sible load. Please also observe the information
¢page 343, ¢page 347.
Trailer load distribution
Be sure the load in the trailer is held securely in
place to prevent it from shifting forward, back­
ward or sideways.
Never allow a passenger to ride in a trailer¢.&.
in Messages on page 100.
Ball mount
The trailer hitch may only be used with suitable ball mount and ball. Installation of the hitch ball
must be carried out in accordance with the manu­
facturer's instructions .
Trailer towing
Engine cooling system
Towing a trailer makes the engine work harder. It
is important that the cooling system's perform­
ance is up to the additional load. Make sure that
the cooling system has enough fluid.
Tire pressure
When towing a trailer, inflate the tires of your
vehicle to the tire pressure listed under "Full
load" on the label <:!;>
page 343. Inflate trailer
tires to trailer and tire manufacturers' specifica­
tions.
Lights
The headlight settings should be checked with
the trailer attached before driving off. Check to
make sure both vehicle and trailer lights are
working properly.
Safety chains
Be sure trailer safety chains are properly connect­
ed from the trailer to the hitch on the vehicle .
Leave enough slack in the chains to permit turn­
ing corners. When you install safety chains, make
sure they will not drag on the road when you are
driving.
The chains should cross under the trailer tongue
to prevent it from dropping in case of separation
from the hitch.
Setting drive select(air suspension)*
Make sure the vehicle is on a level surface before
hitching the trailer and before adjusting the
tongue weight. The driving mode must be in
Au­
to or Comfort ¢page 134, ¢ (D
If you would like to drive in the Dynamic driving
mode, then you must select this mode before
hitching the trailer and before adjusting the
tongue weight. Please note that your vehicle will
lower and the ground clearance is reduced.
If you have to drive through difficult road condi­
tions, you can raise the vehicle again after hitch­
ing the trailer or after adjusting the tongue
weight
¢ page 136.
(D Note
Vehicles with air suspension*:
99

Telephone
Telephone Introduction
Applies to: vehicles with telephone
To make phone coils in your vehicle using the
/11/111, connect your cell phone to the /11/111 via
Bluetooth.
Hand sfree
Afte r you have connected you r ce ll phone to the
MMI via Bluetooth , you can use the handsfree
system and operate telephone functions through
your MMI. You can make calls using the antenna on your cell phone.
A WARNING
- Med ical experts warn that cell phones can
interfere w ith the funct ion of pacemakers .
Always mainta in a m inimum d istance of 20
cent imeters between the cell phone anten­
na and the pacemaker.
- Do not carry the cell phone in a pocket di­
rectly over the pacemaker when the phone
is switched on.
- Sw itch the cell phone off immediately if
you suspect it may be interfering w ith the
pacemaker.
- Do not use the vo ice recognit ion system*
Q page 169 in emergencies because your
vo ice may change in stressful situations . It
may take longer to dial the number or the
system may not be able to dial it at all. Dial
the emergency numbe r manua lly.
- Switch your cell phone off in areas where
there is a risk of an exp losion . These loca­
tions are not always clearly mar ked. This
may include gas stations, fuel and chemical
storage facilities or transport vehicles, or lo­ cations where fue l vapors (such as propane
or gaso line vapor in vehicles or bui ldings),
chemicals or large quantities of dust parti­
cles (such as flour, sawdust or metal) may
be present in the air. This also applies to all
other locations where you would normally
turn yo ur vehicle engine off .
- The demands of traffic requ ire yo ur full at­
tent ion . Always read the chapter
Q page 156, Traffic safety information.
176
-
(D Note
A lways fo llow the information found in Q @ in
Wi-Fi hotspot on page 195.
@ Tips
- The Bluetooth connect ion range is limited
to inside the vehicle. It can also be affected by local condit ions and interference with
other devices.
- To learn which Bluetooth connections and
wh ich of the funct ions in your cell phone are
supported, check with your cell phone serv­ ice provider or the database for mob ile devi­
ces at
www .audiu sa.com /bluetooth .
Setup
Connecting a cell phone using Bluetooth
Applies to: vehicles with telephone
Fig. 1 76 D is pl ay ing t he PIN for enter ing in t he cell p hone
Requirem ent
The vehicle must be stationary and the ignition
must be switched on.
The Bl uetooth funct ion and visib il ity of the MMI
Q page 251 and cell phone must be switched on.
The cell phone to be connected must not be con­ nected to any other Bluetooth device.
The MMI must not be connected to a cell phone .
Connecting a cell phone
... Select: !MENU I button> T el ephon e> Connect
mob ile de vice > Find ne w de vices > Next .
The
available Bluetooth devices are shown in the In­
fotainment system display .
Or select: !M ENUI
button >Setting s> left control butto n> MMI
setting s> Connection manag er
Q page 250 . ..,_

Check ing and F illing
Checking and Filling
Gasoline
Fuel supply
Applies to: vehicles with gaso line engine
Using the right fuel helps keep the environment
clean and prevents engine damage.
F u el r eco mmend ati on
The fuel recommended for your vehicle is unle ad­
e d pr em ium
grade gasoline . Audi recommends
using TOP TIER Detergent Gasoline with a mini­
mum octane rating of 91 AKI (95 RON). For more
information on TOP TIER Detergent Gasoline,
p lease go to the offic ial website
(www.toptiergas .com).
The recommended gasoline octane rating for
your engine can also be found on a label located on the ins ide of the fuel filler flap . This rating
may be specified as AK I or RON .
Your veh icle may also be operated using unlead­
ed regular gasoline with a minimum octane rat ­
ing of 87 AKl/91 RON. However, using 87 AKI/91
RON octane fuel w il l slightly reduce engine pe r­
forma nce.
Us e un leade d gaso lin e onl y. Unleaded gasoline
is availab le throughout the USA , Canada, and in
most European countries . We recommend that
you do not ta ke your vehicle to areas or co unt ries
where un leaded gaso line may not be availab le.
For more information on refueling your vehicle,
see
¢page 316.
Octan e rating
Octane rating indicates a gasoline's ability to re­
sist engine damaging "knock" caused by prema­
ture ignit ion and detonation . Therefore, buy ing
the correct grade of gasoline is very important to
he lp prevent poss ible engine damage and a loss
of eng ine performance.
Gasoline most commonly used in the Un ited
States and Canada has the following octane rat­
i n gs that ca n usually be found on the filler pump:
- Premium Grade: 91 - 96 AKI
314
- Regu la r Grade: 87 - 90 AK I
Explanation of the abbreviations:
AKI = Anti Knock Index = (R +M)/2 = (RON +MON)/
2
RON = Research Octane Number
MON = Motor Octane Number.
{[) Note
-Do not use a ny fue l w ith o ctane ratings low­
er than 87 AKI or 91 RON othe rw ise expen­
sive engine damage wi ll occur .
- Do
not use leaded gasoline. The use of lead­
ed gasoline will severely damage your vehi­
cle's catalyt ic converter and its ability to
control exhaust emissions .
Blended gasoline
Applies to: vehicles with gasoline engine
Use of gaso lin e conta ining alcoho l or MTBE
(meth yl tertia ry butyl ether )
You may use unleaded gasoline blended with al­
cohol or MTB E (commonly referred to as oxygen ­
ates) if the blended m ixture meets the follow ing
criteria:
Blend of g asoline methanol (wood alcohol o r
m eth yl alcoho l)
-Anti -knock index must be 87 AKI or h igher.
- Blend must contain no more than 3% metha-
nol.
- Blend must contain more than 2% co -solvents.
Blend of ga soline and ethanol (grain alcohol or
ethyl alc ohol )
- Anti-knock index must be 87 AKI or h igher .
- Blend must not conta in more than 15% etha-
nol.
Blend of gas oline and M TBE
- Anti-knock index must be 87 AK I or h igher .
- Blend must contain not mo re than 1S% MTB E.
S easonall y adjusted gasoline
Many gasoline grades are blended to perform es­
pecially well for winter or summer dr iv ing . Dur-
i ng seasonal change-over, we suggest that you .,..

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:E: ' fill up at busy gas stations where the seasonal
adjustment is more likely to be made in time .
(D Note
-Methanol f uels which do not mee t these re­
quirements may ca use corrosion and dam­
age to plastic and rubber components in the
fuel system.
- Do not use fuels that fai l to meet the speci­
fied criteria in this chapter.
- If you are unable to determine whether or not a particular fuel blend meets the speci­
fications, ask your service station or its fuel
supplier.
- Do not use fuel for which the contents can­
not be identif ied.
- Fuel system damage and performance prob­
lems resulting from the use of fue ls differ­
ent from those specified are not the respon­
s ibility of Audi and are not covered under
the New Veh icle or the Emiss ion Control
System Wa rrant ies.
- If you experience a loss of fue l economy or
driveability and performance problems due
to the use of one of these fuel b lends, we
recommend that you switch to unblended
fuel.
Gasoline additives
Applies to: vehicles with gasol ine engine
A majo r concern among many auto manufactur ­
ers is carbon deposit build-up caused by the type
of gasoline you use.
A lthough gasoline grades d iffer from one manu­
facturer to another, they have cer tain things in
common . A ll gasoline grades contain substances
that can cause deposits to collect on vita l engine
parts, such as fue l injectors and intake valves . Al ­
though most gasoline brands include additives to keep engine and fuel systems clean, they are not
equally effective.
Audi recommends using TOP TIER Detergent Gas­
oline. For more informat ion on TOP TIER Deter­
gent Gasoline, please go to the official website (www.toptiergas .com) .
Check ing and Filling
After an extended period o f using inadeq uate
fuels, bui lt-up ca rbon deposits can rob your en­
gine of peak performance.
(D Note
- Damage or malfunction d ue to poor f uel
quality is no t covered by the Audi New Veh i­
cle Lim ited Warranty .
- Do not add af termarket fuel addi tive prod­
u cts to your fue l tank.
Diesel fuel
Applies to: vehicles with diesel engine
Always use U LSD (Ult ra Low Sulfur Diesel) No. 2.
T he ULSD No. 2 meets the AS TM 0975.
D iesel fuel w ith concentrations of b iod iesel h igh­
er than 5
% such as Bl 1, B20 or B100 are st rict ly
prohib ited.
Service station fuel pumps are labeled with the
cor rect fuel i nformation for easy recogn ition by
the user. If the d iesel fue l pump is not labeled
as k t he station operator wha t fuel is being dis­
pensed before fill ing up your vehi cle.
U LSD No . 2 may not be ava ilable outside the USA
and Canada. Be su re to check befo re t raveling to
othe r countr ies.
ULSD No . 2 can become thicker in very cold tem­
peratures, and th is can impa ir the engine's start­
ing and runn ing . Depend ing o n the season, gas
stations provide ULS D No. 2 that flows be tte r in
cold te mpe ra tures so that you can conti nue ope r­
at ing your vehicle as usual.
(D Note
- Yo ur vehicle's diese l eng ine w as designed
so ley for use w ith ULS D No. 2. Therefo re,
never use gasoline, heating oil, other fuels
or flow improvers. These contain s ubstances
that will severely damage the fuel system
and the engine. Such damage will not be
covered by your New Vehicle Limited War­
ranty.
- If you put any amount of incorrect fuel in
the fuel tank, do not start the engine under ..,_
315

Checking and Filling
any circ umstances. Immediately contact the
nearest author ized Audi dealer or author­
i zed Audi Service Facility for assistance .
These fuels contain substances that can se­
verely damage the fue l system and the en­
gine if the engine is started .
Refueling
Fuel filler neck
The fuel fille r neck is located on the right rear
s ide pan el behind the fu el filler flap .
I f the power locking system should fail, you can
still open the flap manua lly -for detai led instruc­
tions see
c::> page 318.
You can find the fuel tank capac ity of you r vehicle
in
c::> page 3 79 .
The label on the inside of the fuel filler flap tells
you the correct fue l for your vehicle . For more in­
formation about fue l specifications , see
c::> page 314 .
Your veh icle fuel tank has an onboard refuelling
vapor recovery system . This feature he lps to pre­
ve nt fuel vapors from escap ing from the tank and
pollut ing the e nvironment while yo u re fuel your
veh icle. In order to fi ll the tank properly while
protecting the environment, please fo llow this
r e fu eling procedure carefu lly.
& WARNING
Under normal operating conditions, never car­
ry additiona l fuel containers in yo ur car. Gas
canisters and other conta iners used to trans­
port fuel can be dangerous . S uch containers,
full or empty , may lea k and could cause a fire
in a collision. If yo u m ust t ransport fue l to
use for yo ur lawn mower, snow blower, etc.,
be very careful and a lways obse rve loca l and
state laws regard ing the use, t ransportation
and sto rage of such fue l conta iners. Make cer­
tain the container meets industry standards
(ANSI/ASTM F852 -86).
(D Note
Never drive yo ur vehicle unt il the fuel tan k is
comp letely empty . The irregular supply of
316
fu el can cause misfiring. Gasoline could ente r
the exhaust system and damage the catalytic
converter.
Fueling procedure
F ig . 259 Righ t rea r side of th e ve hicl e: op enin g the fue l
fi ller door
Fig. 26 0 Fuel fille r doo r wit h attached fuel c ap
The fuel filler doo r is unlocked or locked by the
cent ral lock ing system .
Opening the fuel cap
.. Press the left side of the fuel f iller doo r to open
i t
c::> fig. 259 -arrow-.
.. Unscrew the tank cap counterclockwise .
.,.. Place the cap from above on the open fuel filler
door
c::> fig . 260 .
Closing the fuel cap
.. Turn the fuel cap to the right until it stops.
.. Close the fuel filler door until i t latches.
Onc e the pump noz zle sw itches
off, the fuel tank
is "full ". Do not fill the tank more . Otherwise the
expans ion space in the tank w ill be filled.
The correct fuel type fo r your ve hicle can be
fo und o n a label located on the inside of the f uel
IJJ,