2014 AUDI Q7 engine

Catalytic converter
Applies to vehicles: with gasoline engine
It is very important that your emission con­
trol system (catalytic converter) is function­
ing properly to ensure that your vehicle is run­
ning in an environmentally sound manner .
... Always use lead-free gasoline c::> page 249,
Gasoline .
... Never run the tank down all the way to emp­
ty .
... Never put too much motor oil in your engine
c::> page 263, Adding engine oil 't=r..
.,. Never try to push-or tow-start your veh icle.
The catalytic converter is an eff icient "clean­
up" device built into the exhaust system of
the vehicle. The catalytic converter burns
many of the pollutants in the exhaust gas be­
fore they are released into the atmosphere.
The exclus ive use of unleaded fuel is cr it ically
i mportant for the life of the cata lytic convert­
e r and proper functioning of the engine.
& WARNING ,~
T he temperature of the exhaust system is
high, both when driving and after stopping
the engine .
- Never touch the exha ust tail pipes once
they have become hot. This could result
in burns.
- Do not park or operate the vehicle in
areas where the hot exhaust system may
come in contact with dry grass, brush,
fuel spill or other material which can
cause a fire.
- Do not apply additional undercoating or
rustproofing on or near the exhaust
manifold, exhaust p ipes, catalytic con­
verter or heat shields . During driving, the
substance used for undercoating cou ld
overheat and cause a fire.
(D Note
- Be aware that just one tank f illing with
leaded fuel will already seriously de-
grade the performance of the catalytic
conve rter.
Dri vin g and en vironm ent 233
-Do not exceed the correct engine oil level
c::> page 263.
- Do not drive until the fue l tank becomes
completely empty. The engine cou ld mis­
fire. Unburned fuel could also get into
the exhaust system and this cou ld cause
the catalytic converter to overheat.
- Do not turn off the ignition while the ve­
hicle is mov ing.
- Do not continue to operate your veh icle
under these conditions, as otherwise fuel
can reach the catalyt ic converter. Th is
cou ld result in overheating of the con­
verter, requir ing its replacement.
- To assure efficient operation of the Emis­
sion Control System:
- Have you r vehicle main tained properly
and in accordance w ith the se rv ice rec­
ommendations in your Warranty & Maintenance book let.
- Lack of proper maintenance as we ll as
improper use of t he vehicle will impair
the function of the emission contro l
system and could lead to damage.
@) For the sa ke of the env ironment
Even when the Emission Control System is
operating properly, the exhaust gas can have a sulfur-like exhaust gas smell under
some operat ing states. This depends on
the sulfur content of the fuel being used .
Using a different brand of fuel may help,
or filling the tank with lead-free s uper
g rade gasoline.
Diesel particulate filter
App lies to vehicles: wit h diese l eng ine
The diesel part iculate filter filters nearly all of
the soot pa rticles out of the exhaust . T he fil­
te r clea ns itself automat ica lly under no rma l
driv ing cond itions. If the filter cannot clean it ­
self (for example, because you are on ly driving
short distances), the fi lter becomes clogged
with soot and the
Ill symbo l for the diesel
particulate filter i lluminates
c::> page 36. ..,_
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234 Driving and en vironm ent
,8. WARNING
-Do not park your vehicle over flammable
materials such as grass or leaves because
the high temperature of the diesel par­
t icu late filter could start a fire .
- Do not apply an underbody protectant in the exhaust system area or a fire could start.
Avoid damaging the vehicle
When you are driving on poor roads, or over
curbs, steep ramps, etc., make certain that
low-lying parts such as spoilers and exhaust
system parts do not bottom out and get dam­
aged.
This is especia lly true for vehicles with low­
slung chassis (sports chassis)* and fully load­
ed vehicles.
Shutting down vehicle
If you would like your vehicle to remain inop­
erative for a longer period of time, contact an
Audi or other specialized dealer . They can ad­
vise you on necessary precautions e.g . corro­
sion prevention, maintenance and storage. Pay attention to additional information con ­
cerning the battery. Refer to
c::> page 268.
Operate your vehicle
economically and minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle, as well as ex­
haust and noise levels .
Fuel economy, environmental impact, and
wear on your engine, brakes and tires largely
depend on three factors:
- your personal driving style
- operating conditions
- technical limitations
If you anticipate what you need to do next and
drive economically, you can easily cut your
fuel consumption by 10-15 percent . This sec­
tion will give you some tips on how you can help the environment and your pocketbook.
(D Tips
The consumption estimates as published by ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre­
spond to your actual consumption on the road, which will vary depending upon vehi­
cle load and speed, road and weather con­
dit ions, trip length, etc.
· Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they ore ac­
celerating.
., Avo id unnecessary accelerating and brak ing.
Vehicles use the most fuel when they are ac ­
celerating . If you anticipate what is going to
happen next, you will need to brake less and,
thus, acce lerate less. Let the vehicle coast
whenever possible -for examp le when you see
that the next traffic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
., Try and keep well below your car's maximum
speed.
Accelerating gently reduces fuel consump­
tion, engine wear, and does not disturb the environment.
Fuel consumption, exhaust emissions and en­
gine noise increase disproportionately at high
speeds. If you drive at approximately three
quarters of top speed, fuel consumption w ill
be reduced by one half. Never drive faster
than the posted speed limit and weather con­
ditions permit.

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,
•
•

236 Driving and environment
the engine is at its proper ope rat ing tempera ­
ture and fue l economy has reac hed a no rma l
l eve l. So you can see that you sho uld avoid
short tr ips wheneve r possib le .
T he
outside temperature is a lso cri tical i n this
regard. Your car cons umes more fuel in the
winter than in t he summer .

Driving off road
Driving in difficult road
conditions and offroad
General information
The operation of the E lectronic Stabilization
Control (ESC) is expanded fo r operation away
from paved roads. In situations where slip or a
differential lock ing funct ion is required, the
offroad mode can be activated
c:::> page 224.
Hill descent control is a lso ava ilable in the off ­
road mode, which automat ically brakes the
ve hicl e and thereby keeps speed consta nt
when differe nt w heel speeds a re detected
when descending a hill
c:::> page 226. Your A ud i
a lso has permanent a ll-wheel drive in addi­
tion.
H oweve r, your Aud i is not a pure off road ve hi­
cle . It was not built for d riving unde r extreme
conditions, e.g. for trips that are in the nat ure
of an expedition .
Drive only on road s and offro ad sections
which match the de sign of y our vehicl e and
you r abilitie s as a dri ver. Ne ver t ake ri sks!
Before driving offroad
- Check the eng ine oi l level, t ire pressu re ,
coolant level , and the fluid level in the w ind­
shield washe r reservo ir.
- Stow luggage items a nd other objects in the
l uggage compartment, and sec ure t hem
against s lid ing aro und .
After driving offroad
- After trips off road, remove any twigs and
othe r foreign objects from the grill , the un­
derbody and the wheels. Pay spec ia l atten­
t ion to fore ign ob jects (stones) which have
become lodged in t he tire tre ad.
- Clean t he body and the vehicle unders ide,
and inspect the veh icle for possible damage.
- Clean dirty w indows , headlamp lenses, rear
li gh ts, and license plates .
- Perfo rm a brake check (particularly after
t ravell ing throug h water) .
Driving off road 237
A WARNING
-Drive especially attentively and plan
ahead in diff icu lt road conditions and
when off road. Excessive speed o r inco r­
rect maneuve rs can cause injuries and
damage to the vehicle.
-
- Always adapt your speed and driving
style to road, offroad, t raff ic, and weath­
e r condition s. D rive e spe cially slowly off­
road when yo ur view is restricted.
- Please be aware that in offroad mode,
pa rti cularly on a smoo th and s lippery
road, the whee ls may have an increased
tendency to spin and the vehicle may
break away -danger of skidding!
- Stability is limited in the offroad mode .
@ For the sake of the environment
Avoid damage to the environment and re­
spect na ture .
@ Tips
Only d rive where it is permitted and stay
on marked roads and paths.
Explanation of some technical terms
T he following data refer to ideal cond itions .
Depend ing on ve hicle load and gro und condi­
tions and the environment, the numbers may
vary .
It is the driver's responsibility to decide
whether a veh icle can overcome a specific sit­
uat ion
c:::> &, .
Gradient angle
The number o f meters in altitude ga ined over
a distance of 109.4 ya rds or 100 meters
(grade) are given as a percentage o r degrees.
Information about the gradient the vehicle
can climb under its own power (depends in
part on the road surface and engine power).
Max imum perm itted grade : 31
°
Lat eral angle (slo pe of veh icle )
Indicates the angle up to which the vehicle
can be driven diagona lly or across the fall line
on a slope without the vehicle tipp ing over
IJll,
•
•

If the vehicle threaten s to tip o ver when
d riv ing across a slope , you mu st imm ediate­
ly steer downhill in the di rection of the
slope.
D o not park your vehicle on steep slopes or
grades .
To reduce the risk of t ipping over, dr ive on
slopes in the d irection o f the downward slope
(fa ll line) -
not cro sswi se.
~ WARNING
After driving through water, m ud, slush,
etc., the brakes may be slow to take effect
because of wet brake rotors and pads. Dry
the brakes first by braking carefully to re­
store the full braking effect.
(D Note
-
Vehicle components such as the engine,
transmiss ion, suspension or electrical sys­
tem can be severely damaged by driving
through water.
{l) Tips
- Check the depth of the wate r before dr iv­
i ng through it.
- Do not stop the veh icle, dr ive in reverse
or switc h the engine off when driving
t h rough water.
- Keep in mind that oncoming vehicles may create waves that raise the water
leve l and make it too deep for your vehi­
cle to drive through safely.
- Avoid dr iving through sa lt water because
i t can cause corrosion.
Driving off road 239
•
•

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-
•
•

24 2 Trailer towing
chains, make sure they wi ll not drag on the
road when you are driving .
The cha ins shou ld cross under the tra ile r
tongue to prevent it from dropping in case of
separation from the hitch.
0 Note
If you are going to tow a tra ile r, you must
activa te the trailer operation mode
~ page 159, Towing a trailer.
Driving instructions
Driving with a trailer always requires extra
cor e and consid eration.
To obta in the best poss ible handling of vehicle
and tra ile r, p le ase no te the following:
.. Do not tow a loaded tra iler when your car it­
self is not loaded.
.,. Be especia lly careful when pass ing othe r
vehicles .
.. Observe speed limits.
.. Do not driv e at the maximum p ermissible
speed.
.. Always apply brakes early.
.. Monitor the temperature gauge.
Weight di stributio n
Towing a loaded trai ler with an empty ca r re­
sults in a high ly unstable distribution of
weight . If this cannot be avoided, drive at very
l ow speeds only to avoid the risk of los ing
steering control.
A "balanced" rig is eas ier to operate and con ­
trol. This means that the tow vehicle should
be loaded to the extent possible and permiss i­
ble, while keeping the trailer as light as possi­
b le under the circumstances. Whenever possi­
b le, transfer some cargo to the luggage com­
pa rtment of the tow veh icle wh ile observing
tongue load requirements and vehicle loading
considerations .
Speed
The higher the speed, the more difficult it be­
comes for the driver to control the rig . Do not
drive at the maximum permiss ible speed . Re- duce your speed even more i
f load, weather or
wind conditions are unfavorable - particularly
when going downhill.
Red uce veh icle speed
immediately if the trail­
er shows the slightest s ign of sway ing.
Do not
t ry to stop the swa ying by acceleratin g.
Observe speed limits. In some a reas, speeds
f or vehicles tow ing tra ile rs are lower than for
r egular vehicles.
Always apply brakes early. When driving down hill, shift into a lowe r gear to use the en­
gine braking effect to s low the vehicle . U se o f
the brakes alone can cause them to overheat
and fail.
Coolant temperature
T he coo lant tempe ratu re gauge ~ page 10
must be observed caref ully. If the need le
moves close to the upper end of the scale, re­
duce speed immediately and/or turn off the
air conditioner.
If the coolant temperature warn ing light in
the instr ume nt cluster starts flashing., pull
off the road , stop and let the engine
idle for
about two min utes to prevent heat build -up .
A WARNING "--
Anyone not proper ly restrained in a mov-
ing vehicle is at a much greater risk in an
accident. Never let anyone ride in your car
who is not properly wearing the restraints
p rov ided by A udi .
Trailer towing tips
Important to know
Your vehicle handles d ifferently when towing
-
a trai ler because of the additional weight and
different weight distr ibut ion. Safety, perform­
ance and economy will great ly depend on how
ca refully you load your tra iler and operate
yo ur rig .
Before you act ua lly tow your tra iler, practice
turning, stopping and backing up in an area
away from traffic. Keep pract ic ing unt il you