2014 AUDI Q7 check engine light

Homelink
Universal remote
control
Description
Applies to vehicles: with Home link
The HomeLink universal remote control can
be programmed with the remote control for
devices that are already present.
With Home Link, you can control devices such
as the garage door, security systems, house
lights , etc. comfortably from the inside of you
vehicle.
Homelink makes it possible for you to rep lace
three different remote controls from devices
in your home with one universal remote. This
feature works for most garage door and exte­
rior door motor signals. Programming the in­
dividual remote control for your remote con ­
trol takes place on the left side of the front bumper. There is a control module attached at
this location .
A one-time programming of the sensor must be performed before you are able to use sys­
tems with Homelink. If the system does not activate after performing the one-time pro­
gramming, check whether the system uses a rolling code
¢ page 163 .
A WARNING
-Never use the Homelink transmitter
with any garage door opener that does
have not the safety stop and reverse fea­
ture as required by federa l safety stand­
ards. This includes any garage door open­
er model manufactured before April 1,
1982.
- A garage door opener which cannot de­
tect an object, signaling the door to stop
and reverse does not meet current feder­
al safety standards . Using a garage door
opener without these features increases
risk of serious injury or death.
Homelink 161
- For safety reasons never release the
parking brake or start the engine while
anyone is standing in front of the vehicle .
- A garage door or an estate gate may
sometimes be set in motion when the
Homelink remote control is being pro­
grammed. If the device is repeatedly ac­
tivated, th is can overstrain motor and
damage its electrical components - an
overheated mo to r i s a fire hazard!
- To avoid possib le injuries or property
damage, please always make abso lutely
certa in that no persons or objects are lo­
cated in the range of motion of any
equipment being operated.
(0 Tips
- If you would like more information on
Homelink, where to purchase the Home­
Link compat ible products, or would like
to purchase the Home Link Home Light­
ing Package, please call toll-free :
1-800-355-3515.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions
¢page 319.
-For security reasons, we recommend that
you clear the programmed buttons be­
fore selling the vehicle.
Operation
App lies to vehicles : with Homeli nk
111111 111111
-
Fig. 191 Headl iner: controls
Req uirement: The buttons must be program­
med
<:!)page 162.

226 Intelligent technology
Offroad mode on Offroad mode off
Behavio r
The ESC and ASR stabilization functions The fu ll stabilization function of the ESC
are limited
c> Li::,. .
Operation Press the 1.$ OFFI button.
Indicator fl turns on.
lights
D rive r mes-
Stabilization control (ESC): Offroad.
sages Warning! Rest ricted stability
Hill descent control
The hill descent control is switched on in off­
road mode. When slowly descending steep
gradients on loose ground or when the axles
are articulated, h ill descent control provides
assistance by automatically applying the
brakes to keep vehicle speed constant. The ve­
h icle is also rendered easier to steer by selec­
tive distribution of braking force . Hill descent
control intervenes when:
- the accelerator pedal is not pressed,
- the vehicle is trave lling less than 12 mph
(20 km/h),
- a steep gradient is detected,
-wheel behavio r indicates loose ground or
conditions with poor adhesion (e .g. also ax le
articulation) .
H ill descent control operates both driving for ­
ward and in reverse . Active hill descent con­
trol is deactivated by pressing the accelerator
pedal until the conditions for activation al ­
ready listed are met again.
A WARNING
You should only switch offroad mode on if
your dr iving abilities and road cond itions
permit.
- The stabilization function is limited
when offroad mode is switched on. The
dr iv ing wheels could spin and the vehicle
cou ld swerve, especially on slick or slip­
pery road surfaces.
- You should only sw itch offroad mode on
when driving offroad. and ASR
is available again.
Press the
1 .$ OF FI button again.
fl turns off.
Stabilization control (ESC): On
(D Tips
Offroad mode cannot be switched on when
adaptive cruise control* is switched on .
Brake system
Operating conditions and driving habits
The brakes on today's automobiles are still
subject to wear, depending largely on operat­
ing conditions and driving habits
c> Li::,. . On
vehicles that are either driven most ly in stop­
and-go city traffic or are dr iven hard, the
brake pads should be checked by your author­
ized Audi dealer more often than specified in
the Warranty & Maintenance booklet . Failure
to have your brake pads inspected can result
in reduced brake performance.
On steep slopes, you should use the braking
effect of the engine . This way, you prevent un­
necessary wear on the brake system .
If you
must use your brakes, do not hold the brakes
down continuously. Pump the brakes at inter­
vals.
Noises may occur when braking depending on
the speed, b raking force and outs ide cond i­
tions such as temperature and humidity.
Moisture or road salt
Under certain conditions, for example, when
driv ing through water or very heavy rain, or
even after washing your veh icle, the braking
effect can be reduced due to moisture (or in
freezing conditions ice) on the bra ke pads. A
f ew careful brake applications should dry off
the brake pads or remove any ice coatings.
jll,,

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 safe ty and
ab ility to hold its value, it also affects fuel
consumption .
Check your oil each time you fill your tank.
Driving and environment 235
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 driv ing 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 on ly 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,
•
•

Weight Rating will also change the per­
formance and handling characteristics of
your vehicle, which could cause a crash resulting in serious injury or death .
- The Gross Vehicle Weight Rating for your
vehicle would be exceeded if your vehicle
is simultaneously equipped with Panor ­
amic sliding sunroof; third-row seating;
trailer towing equipment (factory or
dealer-installed), and running boards
(dealer-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. 231 Perm itted ba ll posit ion of the trailer hitch
Trailer towing weights
With a factory-installed trailer hitch, the
maximum permissible trailer weight is 6,615
lbs (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 trailer weight is 5,512 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
lowable or slightly lower. You can get an ap­
proximation 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 trailer hitch, the
maximum permissible load on the ball hitch Trailer towing 241
may not exceed 662 lbs (300 kg). With an
af­
termarket
trailer hitch, the maximum permis­
sible load on the ball hitch may not exceed
551 lbs (250 kg).
It is recommended to use
the maximum permissible load.
Trailer load distribution
Be sure the load in the trailer is held securely
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 242.
Ball mount
The trailer hitch may only be used with suita­
ble ball mount and ball ¢
fig. 231. Installa­
tion 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.S mm) a tolerance of+/- 0.5 in (12. 7 mm)
is permissible.
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 trailer, 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 . Inflate trailer tires to trailer and tire
manufacturers' specifications .
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 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-
•
•

Checking and filling Engine hood
Releasing the engine hood
The engine hood is released from inside the
vehicle .
Fig. 23 9 Drive r's s id e footw ell: eng in e hood relea se
l e v e r
"' Open the driver's door .
"' Pull the release lever on the left under the
instrument panel
i=> fig . 239 in the d irection
of the arrow .
The hood pops up slight ly under spring pres­
sure.
Opening the engine hood
F ig . 2 40 Relea se le ve r u nde r the e ngin e hood
Before opening the engi ne hood, make sure
that the windshie ld wipers are flat against the
windshie ld. Otherwise, they cou ld damage the
pain t on the hood.
"' Lift the hood slight ly ¢
_A .
"' Pull up on the release under the hood
¢ fig . 240. This releases the catch.
"' Open the hood all the way . Checkin
g and fillin g 257
A WARNING
Hot engine coolant can burn you.
- To reduce the risk of being burned, never open the hood if you see or hear steam
or coo lant escaping from the eng ine
compartment . Wait unt il no steam or
coolant can be seen or heard before care­
fu lly opening the hood.
Closing the engine hood
"' Pull the hood down until the pressure from
the stru ts is reduced.
"' Let the 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 and b lock your view while dr iv­
i n g.
- When you close the engine hood, check it
to make sure the safety catch has p roper­
ly engaged . The hood shou ld be flush
with the surround ing vehicle body parts.
- If you notice while driv ing that the hood
is not secured prope rly, stop at once and
close it .
Working in the engine compartment
Be especially careful whenever you work in
the engine compartment.
Whene ver you must perform any wo rk in the
eng ine compartment, for e xample checking
and filling different fluids, there is a risk of injury, burns and accidents. To pr event per­
sonal injury always observe the following
WARNINGS . The engine compartment of an y
vehicle i s a hazardou s area
¢ Lh, .
A WARNING ~
To help avoid injury, befo re yo u check any­
thing under the hood:
- Tu rn off the engi ne.
- Remove the igni tion key.

Checking and fillin g 259
Engine compartment
These are the most important items that you can check .
Fig. 2 41 Typ ical layout for conta iners, e ngin e oi l dipst ick and engine oi l fille r cap
(D Windshield/headlight washer
t .
(~) con ainer ,.,., ....... ... .. .. .
@ Coolant expansion tank (-L) .. .
®
@
®
®
(f)
Eng ine oi l filler cap ("1:::r.) ..... •
Engine oi l dipstick .. .... .... .
Brake fluid reservo ir
(0)) ..... .
Power stee ring reservoir ... .. .
Jump start connector(+) under 272
265
263
262
267
228
a cover, (-) with hex head screw 270, 307
The pos ition of the engine o il filling hole and
the eng ine oil dipstick¢
fig. 241 (position @
and @) can
vary according to the type of en­
g ine.
A WARNING
Before you check anything in the engine
compartment, always read and heed all
WARN INGS ¢.&.
in Working in the engine
compartment on page 257.
Engine oil
Engine oil specifications
The engine in your Audi needs the right kind
of oil.
The engine in your Audi is a sophisticated
powerplant that was built to exacting spec ifi­
cations . Th is eng ine needs the right k ind of
engine oil that meets specifications regardi ng
quality and viscosity so that it can run
smooth ly and reliab ly. Choosing the right o il
and changing oil within the time and mileage
intervals printed in your vehicle's Warranty
&
Maintenance booklet matters a lot more to­
day than it did years ago . Audi has deve loped
a spec ia l quality standard for engine oil that
will help assure that your vehicle's engine w ill
get the lubrication it needs for proper opera­
tion.
Modern engine lubrication has taken a quan ­
tum leap in the last few years. Many synthetic
IIJ>,

VW 502 00 (vehicles with gasoline engine) or
VW
507 00 (vehicles with diesel engine).
C han gin g the en gin e o il
The engine oil and oil filter must be changed
according to the m ileage (ki lomete rs) and
time inte rva ls specified in your vehicle 's War­
r anty
& M aintenance booklet. Do not ex ceed
t hese intervals -harmf ul depos its from old
engine oi l can reduce engine performance and
can lead to expensive engine repairs.
Changing the o il at the recommended inte r­
va ls is so very important because the lub ric at­
ing p roperties o f oi l decrease grad ually during
norma l vehicle use . If you are not sure when
you have yo ur oi l changed, ask your a uthor­
ized A udi Service Advisor.
Unde r some ci rc u mstances the engine o il
should even be changed more frequently.
Change o il more often if you drive mostly
short distances, operate the vehicle in dusty
areas or mostly under stop-and-go traffic con­
d itions, or when you use your vehicle where
temperatures stay below freezing po int for
l ong periods .
Detergent addit ives in the o il w ill make fresh
oil look dark after the eng ine has been run­
ni ng fo r a short time . This is no rmal and is not
a reason to change the o il mo re often than
r ec om mended.
Damage or malfun ctions due to lack of
maintenance
It is essential that yo u change your oil at the
recommended interva ls using only engine oil
that complies with Audi oi l standard
VW
502 00 (vehicles with gasoli ne engine) or
VW
507 00 (veh icles with diesel engine) . You r
Lim ited New Vehicle Wa rra nty does not cove r
damage or m alfu nct ions due to f ailure to fol­
l ow recommended maintenance and use re­
q uir ements as set forth in the A udi Owner's
M anual and Warranty
& M aintenance book let.
Your dea ler will have to deny warranty cover­
age un less you present to the dea ler proof in
the form of Service or Repa ir Orders that all
Checkin g and fillin g 261
scheduled maintenance was performed in a
timely manner.
· Engine oil consumption
To provide effective l ubr ication and cooling for
interna l eng ine parts, all interna l combustion
engines use some oi l. Oi l consumption varies
from eng ine to engine and may change over
the life of the engine . Engines tend to use
more o il du ring the b reak-in period tha n they
do afterward, when o il cons umption has sta­
bilized. Depend ing on the way the vehicle is
driven and the operating conditions, oil con­
s u mption can be up to
1 quart per 1,200
miles (l liter per 2,000 km) . Consumption
may be higher within the first
3,000 m iles
(5,000 km) .
U nder normal conditions , the rate of oi l con ­
s u mption depends on oi l quality as well as vis­
cosity, engine speed (rpm), outs ide tempera ­
ture, road conditions, the amount of oil dilu­
tion caused by condensed water or fue l resi­
due, and ox idat ion of the o il. Oi l consumption
may increas e with eng ine wear over time, un­
t il rep lacement of worn engine pa rts may be­
come ne cessa ry.
Because of all these var iables, there is no
standard o r "n orma l" rate of o il cons umption .
We urge you to check the engine oil level at
regular interval s, preferably every time y ou
fill the fuel t ank, and always before a long
trip .
The oil pres sure warning light. i s not an
indicator of low engine oil level. If the warn ­
ing light does not go out after starting, or
flashes while dr iving (above 1500 rpm), a
buzzer will sound. It indicate s that the oil
pressure is too low . Stop the engine immedi ­
ately , check the engine oil level and add oil if
necessa ry. If the engine oil level is normal,
but the l ight continues to fla sh, do not keep
driving or let the engine idle, as damage may
occur .
IIJ,
•
•

For year-round driv ing, antifreeze is added at
the factory for temperatures down to:
- - 31 °F (- 35 °C) USA
- - 40 °F ( - 40 °C) Canada .
If you mus t add coolant, use a mixture of wa­
ter and coolant additive. Mixing the coolant
additive with distilled water is recommended .
A WARNING
-
Before you check anything in the engine
compartment, always read and heed all
WARNINGS ¢
A in Working in the engine
compartment on page 257.
(D Note
-Before winter sets in, have the coolant
checked to see if the coolant additive in
your vehicle is sufficient to meet the cli­
mate conditions. This is especially impor­
tant if you live in a region where the win­
ter is extremely cold.
If necessary, in­
crease the proportion of coolant additive
to 60%.
- When adding coolant additive to your
cooling system, remember:
- We recommend using only coolant ad­
ditive Gl2++ or G13 for your vehicle.
This coolant additive is available at au­
thorized Audi dealers. Other types of
antifreeze can significantly reduce cor­
rosion protection . The resulting corro­
sion can cause a loss of coolant and se­
rious engine damage.
- Do not add any type of radiator leak seal­
ant to your vehicle's engine coolant.
Adding radiator repair fluid may adverse­
ly affect the function and performance of
your cooling system and could result in damage not covered by your New Vehicle
Limited Warranty.
Checking and filling 265
Checking the engine coolant level
T he engine coolant level can be checked with
a quick glance.
Fig. 245 En gin e compar tment: Coolant expansion tank
Before you check anything in the engine com­
partment,
always read and heed all WARN­
INGS ¢ A in Working in the engine comport­
ment on page 257 .
.,. Park your vehicle on a level surface.
.,. Turn
off the ignition .
.,. Let the engine cool down.
.,. Place a thick rag over the coolant expans ion
tank ¢
fig. 245, c> page 259, fig. 241 and
carefully twist the cap counter-clockwise
¢,&. .
.,. Read the engine coolant level in the open
coolant expansion tank. With a cold engine,
the coolant level should be between the
"min " and "max" markings. When the en­
gine is warm, the level may be slightly
above
the "max" marking.
The location of the coolant expansion tank
can be seen in the engine compartment illus­
tration
¢ page 259 .
To obtain an accurate reading, the engine
must be switched
off.
The expansion tank in your vehicle is equipped
with an electric coolant level sensor .
When the coolant level is too low, the warning
light in the Auto-Check System¢
page 32 will
blink until you add coolant and the level has
been restored to normal. Even though there is
an electric coolant level sensor, we still rec­ ommend you check the coolant level from
time to time .