2015 AUDI Q7 check engine light

34 Driver in formation d isplay
An additional driver message can also be dis ­
p layed by pressing the
! CHECK I button:
Ignit ion lo ck d efec tive. C ontact w ork sh op !
.. Do
not turn the eng ine off .
.. Drive immed iate ly to an authorized Audi
dealer to have the ma lfunction co rrected .
If there is a malfunction in the electronic igni­
tion lock, the ign ition cannot be turned off .
Drive immediately to an authorized Audi dea l­
e r to have the cause of the ma lfunction co r­
rected.
On vehicles w ith Convenience key*, the engine
should not be sw itched off using the
! STOP !
button because the eng ine cannot be started
aga in after the ignition is switched off.
Yellow symbols
Fig. 26 Disp lay: low fuel level warning (p riority 2)
When a yel low warning symbol appears, one
warn ing tone sounds . A dr iver message ap­
pea rs as well to explain the malfunc tion in
mo re deta il. The driver warning goes o ut after
about 5 seconds, but it can be brought up
again at any time by pressing the
I CHECK I but ­
ton .
Chec k the displayed funct ion as soon as poss i­
b le . If
more than one pr iority 2 malfunction is
detected, all symbo ls wi ll appea r one after
the other for about 2 seconds.
Yellow symbols mean: Convenience key*
Key not in vehicle
¢
page 110
USA models: Defect ive
brake light
¢ page 23
Canada model s: Defective
brake light
¢ page 23
Defect ive light bulb
¢ page 23
Light/ra in sensor defective
¢ page35
Windsh ield washer fluid lev­
el low
¢ page35
Low fue l level
¢page 35
Refill Ad Blue *
¢page 252
AdBlue malfunct ion*
¢ page252
Battery vo ltage
¢ page35
Worn brake pads
¢page36
Dynamic headlight range
control defective
¢ page36
Check engine o il level
¢ page 36
Engine o il sensor malf unc­
tion
¢ page 36
Engine speed limitation*
¢page36
Diesel particulate f ilter*
clogged
¢ page36
Adaptive light * defective
¢ poge37
Ign ition lock ma lfunction
¢ page 37

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Windshield wiper defective
¢ page37
Tire pressure monitoring
system
Loss of air pressure
¢ page302
Tire pressure monitoring
system
System not avai lab le
¢page302
Battery in remote contro l
key
¢ page39
Automatic transmission
malfunct io n
¢ page 143
-7e Key not in vehicle
Applies to vehicles: with Convenie nce key
!I Key not in vehicle
This remi nder appea rs along with the !!I sym­
bo l if the maste r key is removed from the ve­
hi cle with the engine running . It is intended
to remind you (e.g . when changing drivers)
not to continue the journey without the mas­
ter key .
I f the master key is no longer in the vehicle,
you cannot switch off the ignition after stop­ p ing the engine and yo u also cannot start the
engine again. What is more, you cannot lock
the vehicle from the outside.
~ o Light/rain sensor defective
II Automatic headlights / autom atic w ipers
d efect iv e
If the symbo l illuminates, the light sensor has
fa iled. For safety reasons the low beams are
turned o n permanently with the switch in
AU­
TO . Howeve~youcancontinuetoturnthe
lights on and off us ing the light switch . In the
case of a defe ct in the ra in senso r, the w ind­
sh ie ld w iper lever f unctions are st ill available .
H ave the light/ra in sensor checked as soon as
possible by an autho rized Audi dea le r.
Dri ver information di spla y 35
O Windshield washer fluid level too low
lffl Please refill w asher fluid
If the symbol illuminates, add w indshie ld
washe r flu id to the washer system and also to
the headlight washer system¢
page 270.
Bu Fuel supply too low
D Please refuel
When this symbol llD illuminates for t he first
time, the fuel reserve in your vehicle is still
betwee n
2.6 and 3 .2 ga llons (1 0- 12 liters).
Ref uel as soo n as poss ib le
¢ page 250.
If the symbol lights up, even when there is
amp le fue l in the tank, and the text
Tank sys­
tem malfun ction
! Contact work shop appears
in the disp lay, there is a fa ult in the system .
C ont act a qua lified wor kshop to have the fault
re ct ified.
0 Battery voltage
If the batte ry's state of charge is not in the
optimal range, the(•) symbol is shown in the
display and the driver message
Low battery
charge: battery will be charged while driving
appears .
While th is driver notification is disp layed, you
have to be prepared for limited starting capa­
bility.
Driver message appear s and goes out
ag ain
If this driver message appears after the ign i­
tion is turned on or while dr iv ing and it goes
out again after a while, the battery has been
adequately recharged .
Driver message appears and d oes not go
out again
If this driver notification appears after the ig­
nition is t urned on o r whi le dr iving and does
not go out again, the batte ry's state of charge
is not in the op tima l range. S tarting capab il ity
is restr icted. Have the ba ttery checked by an
authorized Aud i dea ler as soon as possible.

36 Driver in formation d isplay
(0 ) Worn brake pads
rlJ Br ake pa ds !
If the warn ing light illum inates, immediately
contact your authorized Audi dealer or quali­
fied workshop to have all brake pads inspect­
ed. On USA models the wa rning light
rlJ
comes on together wi th the warn ing ligh t
1111 -Both sets of b rake pads on an axle
must always be replaced at the same time .
A WARNING
Driving with bad brakes can cause a colli­
sion and serious personal injury .
- If the warning light
rlJ and the warning
light
11111 ) with the message B rake
pads !
comes on in the instr ument cluster
display, immediately contact your au­
thorized Aud i dealer or qualified work­
shop to have all brake pads checked or
replaced if necessary .
~(]) Headlight range control
El Head light rang e control d efe ctiv e !
-
If the symbol illuminates, the dynamic head­
light range control is no longer working prop ­
erly . Have the system checked and repaired at
your author ized Audi dealer.
'I=?; , Engine oil level
Ill Pleas e che ck oil l evel
When the symbol illuminates, check the en­
gine o il level as soon as poss ible
¢ page 260 .
Top off the oil at you r earliest oppo rtunity
~ page 261.
't'.:r .., Engine oil sensor defective
• Oil l evel ! Sensor d efe ctive
If the symbol illuminates, contact your au­
thor ized A udi dealer and have the o il sensor
i nspected. Un til you have th is done, check the
l ) - : USA mod els onl y
oil level each time you refue l just to be on the
safe side ¢
page 260.
!?' Engine speed limitation
Applies to vehicles: wit h engine speed li mitatio n
(Pl Do not e xceed ma x. engine speed of
XXXX rpm
The (Pl symbol illuminates when there is an
engine contro l malfunction. The indicator
li ght
GB in the instrument cluster also illumi­
nates. The engine speed is limited to the
speed displayed in the driver informa tion sys­
tem . Keep in mind that the engine speed w ill
not exceed the value d isplayed in the dr iver in­
format ion system, for example when down­
shifting.
Please go to an author ized Audi dealer or oth ­
er qualified workshop to have the malfunct ion
repaired.
~ Diesel particulate filter clogged
Applies to vehicles: wi th diese l eng ine a nd diese l par ticu ­
late filter
II Particulate filt er See o wner' s manua l
When the II symbol illuminates, you can a l­
ter your driving style to ass ist the filter sel f­
cleaning process . Drive for approximately 15
minutes with the selector lever in the S posi ­
t ion at a m inimum speed of 37 mph (60 km/
h) and an eng ine speed of approximately
2,000 RP M. T he temperat ure increase that
will res ult from this can burn off the soo t in
the fi lter . The symbol will switch off when the
cleaning is successful. After a successful
cleaning, there is no need to bring the car to
an authori zed dea ler or qualified workshop
because th is is part of normal vehicle opera­
t ion .
If the symbol
II does not switch off, see your
authori zed dea ler or other qualified workshop
to have the problem corrected.
For more information on the diesel particu­
l ate fi lter, refer to ¢
page 231.

60 Clear vision
Clear vision
Lights
Switching the headlights on and off
In the "AUTO" position, a light sensor auto­
matically switches the head -and taillights on
and off in response to light conditions .
Fig. 56 Instrument pane l: lig ht sw it ch
The light switch must not be overturned past
the stops in
either direction.
Switching on automatic headlight control
.,. Turn the light switch to AUTO ¢ fig. 56.
Switching on the side marker lights
... Turn the light switch to :o o:.
Switching on the headlights and high
beam
... Turn the light switch to tD .
... Push the high beam lever forward towards
the instrument panel¢
page 63 .
Switching off the lights
... Turn the light switch to 0.
The headlights only work when the ignition is
switched on. While starting the engine or
when switching off the ignition, the head­
lights will go off and on ly the side marker
lights will be on.
After starting the engine, the headlights are
automatically adjusted* to the load and angle
of the vehicle (for example, during accelera­
tion, braking). This prevents oncoming traff ic
from experiencing unnecessary headlight
glare from your headlights. If the
system is not ope rating properly, a
warn ing symbol in the Auto-Check Control is
displayed
¢ page 36.
With the side marker lights or headlights
switched on, the symbol next to the light
switch i lluminates
:oo :.
Daytime running lights
- USA models :
The daytime running lights
w ill come on automatically when the igni­
tion is turned on and the light switch
¢ fig. 56 is in the O position or the AUTO po­
sition (only in daylight conditions). The
Day­
time running lights
function can be turned
on and off in the MMI menu
Exterior light­
ing
c> page 61.
- Canada models: The daytime running lights
w ill come on automatically when the igni­
tion is turned on and the light switch
¢ fig. 56 is in the O position or the AUTO po ­
sition (only in daylight condit ions) ¢
.&..
Automatic headlight control
In the switch position AUTO the automatic
headlight control
is turned on. The low
beams and tail lights are turned on automati­
cally through
a light sensor as soon as ambi­
ent brightness (e .g . when driving into
a tun­
nel) falls below
a value preset at the factory .
When ambient brightness increases again,
the low beams are turned off again automati­
cally ¢
A.
In the AUTO position the low beams are
switched off automatically when the ignition
is turned off.
Light Sensor Malfunction
In the event of a light sensor malfunction , the
driver is notified in the instrument cluster dis­
play:
£I Automatic headlights / automatic wipers
defective
For safety reasons the low beams are turned
on permanently with the sw itch in
AUTO.
However, you can conti nue to turn the lights
on and off using the light switch . Have the ..,.

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when you turn on the ignition and start the
engine.
With the engine turned off
If you listen to the radio, for example, with
the engine turned off or use other MMI func­
tions, the battery is being d ischa rged.
I f starting capability is jeopardized due to en­
e rgy consumpt ion, the following warning ap­
pears in the MMI display:
Please start engine, otherwise system will
switch off in 3 minutes.
The warning ind icates that the system will be
turned off automatically after 3 minutes. If
you wish to cont inue using the functions, you
have to start the engine.
With the engine running
Although electrical energy is generated when
the vehicle is be ing driven, the battery can be­
come discharged . Th is happens mostly when
little energy is be ing generated and a great
deal consumed and the battery's state of
charge is not optimal.
To br ing the energy balance back into equili ­
brium, consumers which require especially
l arge amounts of energy are temporarily cut
back or swit ched off. Heating systems in par­
t icular requ ire a great deal of energy.
If you
notice, for example, that the heated seats* or
the heated rear window are not heating, they
have been temporari ly cut back or switched
off. These systems will be avai lab le again as
soon as the energy balance has been restored.
You will a lso notice that engine idle speed has
been increased slightly . This is norma l and not
a cause for concern . By increasing engine idle
speed the add itiona l energy required is gener­
ated and the battery is charged.
Driver notification in the instrument
cluster display
If battery power drops into the range where it
can limit the ability of the engine to start, this
Intelligent technology 229
is shown in the instrument cluster display
with the following driver message:
(•) I.ow battery charge: battery will be
charged while driving
T h is not ificat ion reminds you that the start ing
capability of the engine may be limited. As
soon as you start driv in g again, the battery
will be recharged and the not ific at ion w ill go
out.
Driver notification appears and goes out
again
If t his driver notification appears after the ig­
nition is tu rned on or whi le driving and it goes
out again after a while, the battery has been
adequately recharged.
Driver notification appears and does not
go out again
If this driver notification appears after the ig­
nition is turned on or whi le driving and does
not go out again, the battery's state of charge
is not in the optimal range. Starting ab ility is
restricted . Have the battery checked as soon
as possible by an authorized Aud i dealer or
qualified workshop.
•
•

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Reducing unnecessary idling
Even when your car is just idling it burns up
fuel.
11-Shut the engine off when you are not driving
the vehicle.
11-Do not warm up the vehicle by letting the
engine run at idle .
It makes sense to shut
off the engine in traffic
jams, when waiting for trains to pass at rail­
road cross ings, or at traffic lights that have
long waits on red. Turning the engine
off for
just 30-40 seconds saves more fuel than is
burned starting the engine again.
It takes a long time for the engine to warm up
fully when it is running at idle. However, wear
and noxious emissions are especially high
when the engine is warming up. So you should
drive away as soon as you start the engine and
avoid running at high rpms while the engine is
still warming up .
(D Note
Do not leave engine idling unattended af­
ter starting. If warning lights should come
on to indicate improper operation, they
wou ld go unheeded. Extended idling also
produces heat, which cou ld result in over­
heating or other damage to the vehicle or
other property .
Regular maintenance
A badly tuned engine unnecessarily wastes a lot of fuel .
11-Have your vehicle serviced at regular inter-
vals.
By having your vehicle regularly serviced by an
authorized Audi dealer helps to ensure that it
runs properly and economically. The condition
of your vehicle not only affects its safety and
ab ility to hold its value, it also affects fuel
consumption.
Check your oil each time you fill your tank.
Driving and environment 233
The amount of oil used is re lated to engine
load and speed.
It is normal for the oil consumption of a new
engine to reach its lowest value after a certain
mileage has been driven.
You must drive your vehicle about 3,000 miles
(S,000 kilometers) before you can properly
assess oil consumpt ion.
This also app lies to fue l consumption and en­
gine output.
(D Note
- Have your veh icle ma inta ined properly
and in accordance with the service rec­
ommendations in your Warranty
& Main­
t enance booklet. Lack of prop er mainte­
nance as well as improper use of the ve­
hicle will impair the function of the
emission cont ro l system and could lead
to damage.
- Do not alter or remove any component of
the Emission Control System unless ap­
proved by the manufacturer.
- Do not alter or remove any device, such
as heat shields, switches, ignition wires,
valves, which are designed to protect
your vehicle's Emission Control System and other important vehicle compo­
nents.
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
11-Try to avoid driving short distances w ith a
cold engine.
T he engine and cata lytic converter have to
reach their optimal operating temperature to
reduce fuel consumpt ion and noxious emis­
s ions effectively .
Just after starting, a co ld engine in a mid-size
car only achieves a fuel economy of 6-8 mi les
per gallon (30-40 l/l00km). After about a
half a mile, fuel economy climbs to 12 mpg
(20 l/100 km). After about
2.5 miles (4 km), liJI,
•
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Weight Rating will also change the per­
formance and handling characteristics of
your vehicle, which could cause a crash result ing in serious injury or death .
- The Gross Vehicle Weight Rat ing for your
vehicle would be exceeded if your vehicle is simultaneously equipped with Panor ­
amic sliding sunroof; th ird-row seating;
trailer towing equipment (factory or
dealer-installed), and running boards
(dea ler-installed) . UNDER NO CIRCUM­
STANCES MAY ALL SUCH ITEMS BE IN­
STALLED ON THE SAME VEHICLE.
Operating instructions
MAX 6.9"
MAX175mm
E
1/1 E 1/1 ... a)
m
Fig. 232 Perm itted ba ll posit ion of t he tra iler hitch
Trailer towing weights
W ith a factory-installed tra iler hitch, the
maximum permissible trailer we ight is 6,600
l bs (3,000 kg). The maximum permissible un­
braked trailer weight is 1,650 lbs (750 kg).
With an
aftermarket trailer hitch, the maxi­
mum permissible t railer we ight is 5,500 lbs
(2,500 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 cond itions, adjust the trailer load so
that the tongue load is at the maximum al­
l owable or slightly lower. You can get an ap­
prox imation of the tongue load with a bath­
room scale or you can measure the load at a
trucking company or weighing station .
With a
factory-installed tra iler hitch, the
maximum permissible load on the ball hitch
Trailer towing 239
may not exceed 660 lbs (300 kg). With an af­
termarket
trailer hitch, the maximum permis ­
s ib le load on the ba ll hitch may not exceed
550 lbs (250 kg).
It is recommended to use
the maximum permissible load.
Trailer load distribution
Be sure the load in the trailer is held secure ly
in place to prevent it from shifting forward,
backward or sideways.
Never allow a passenger to ride in a trailer
¢.& in Driving instructions on page 240.
Ball mount
The trailer hitch may only be used w ith suita­
ble ball mount and ball ¢
fig. 232. Installa­
t ion of the hitch ball must be carried out in ac­
cordance with the manufacturer's instruc­
tions. At the height dimension of 1.5 in
(38.5 mm) a tolerance of+/- 0.5 in (12 . 7 mm)
is perm issib le.
Engine cooling system
Towing a trailer makes the engine work hard­
er . It is important that the cooling system's
performance is up to the additional load .
Make sure that the cooling system has enough
fluid .
Tire pressure
When towing a tra iler, inflate the tires of your
vehicle to the cold tire pressure listed under
" Full load" on the tire pressure label. The tire
pressure label is located on the driver's side B­
pillar . Inf late trailer tires to trai ler and t ire
manufacturers' spec ificat ions .
Lights
The headlight settings sho uld 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 con­
nected from the trailer to the hitch on the
ve­
hicle . Leave enough slack in the chains to per­
mit turning corners. When you install safety
Ill-
•
•

256 Checking and filling
Checking and filling
Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle.
F ig . 2 40 Dr iver's side footwell: eng ine hood re lease
lever
.. With the driver's door open, pull the lever
under the instrument panel in the direction
of the arrow¢
fig. 240.
The hood pops up slight ly under spring pres­
sure.
Opening the engine hood
F ig. 241 Re lease lever under the eng ine hood
Before o pening the engine hood, make s ure
that the windsh ie ld w ipers are flat against the
windshie ld . Otherwise, they could damage the
pa int on the hood .
.. Lift the hood sli ght ly¢ &_.
.. Pull up on the release unde r the hood
¢
fig . 241 . This releases the catch.
.. Open the hood all the way.
A WARNING
-Hot eng ine co olant can burn you.
- To reduce the risk of being b urned, never
o pen the hood if you see or hear steam
or coo la nt escaping from the eng ine
compa rtment . W ait unt il no steam or
coo lant can b e seen o r heard before care­
fu lly openi ng the ho od.
Closing the engine hood
.. Pull the hood down un til the pressure from
t he stru ts is reduced .
.. Le t t he hood
drop down and latch in p lace .
Do not try to push it shut; it may fail to en­
gage ¢&_ .
A WARNING
--
A hood that is not completely latched
could fly up an d block your vi ew while dr iv­
i ng.
- W hen you close the engine hood, c heck it
to make sure the safety catch has p roper­
ly engaged . The hood sho uld be flush
wit h the surrou nding vehicle body parts.
- If you notice while dr iv ing t hat t he hood
is not s ecured properly, stop at once and
close it .
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment .
Whenever you must perform any wo rk in the
engine compartment, for example checking
and filling different fluids, th ere is a risk of
injury, burns and accidents. To pr event per­
sonal injury alway s observe the following
WARNINGS. The engine compartm ent of any
vehicle is a hazardous area
¢ &, .
A WARNING
To he lp avoid injury, before yo u check any­
thi ng under the hoo d:
- Tu rn off the eng ine.
- Remove the igni tion key.