Page 233 of 350

M N
0 ...J
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
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 248,
Gasoline .
... Never run the tank down all the way to emp
ty .
... Never put too much motor oil in your engine
c::> page 261, 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 231
-Do not exceed the correct engine oil level
c::> page 261.
- 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
II symbol for the diese l
particulate filter i lluminates
c::> page 36. ..,_
•
•
Page 234 of 350

232 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 266 .
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.
Page 235 of 350

M N
0 ..J
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
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,
•
•
Page 236 of 350
234 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 .
Page 237 of 350

M N
0 ...J
'SI: ,...., \!) 1.1'1 ,...., 1.1'1 ,....,
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 223.
H ill 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
¢page 2 2 5. Your A ud i
a lso has permanent a ll-wheel drive in addi
tion.
H oweve r, your Aud i is no t a pure off road ve hi
cle. I t was not built for d riving unde r extreme
conditions, e.g. fo r 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 235
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 s it
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 grad ient the vehicle
can climb under its own power (depends in
part on the road surface and engine power).
Max imum perm itted grade : 31
°
Gr ound cle arance
The distance between the road s urface and
the lowest point of the vehicle underbody.
•
•
Page 238 of 350

236 Driving o ff road
- Veh icles wi thout air spring s: ground clear
ance : 8.1 in (204 .8 mm)
- Veh icles w ith adap tiv e air su sp en sion *:
maximum ground clearance: 9.4 in
(239.8 mm) at high level 2
A WARNING
Exceeding the stated maximum figures
can result in severe injuries or vehicle dam
age.
- All the information was gathered on lev el, firm and non-slippery road surfaces,
and under dry weather conditions.
- Ideal conditions do not prevail offroad.
Never utilize the maximum read ings to
their fullest, always leave a safety re
serve .
Driving tips
On poor road and offroad, there is always on
ly one motto : Plan ahead and drive slowly!
P lease obse rve the following when dr iving
away from paved road s:
• Drive only on roads and offroad sections
which match the design of your vehicle and
your abilities as a driver. Never take risks!
• Drive slowly and plan ahead!
• Take in to consideration the
g round cl ea r
a nc e
of your vehicle .
• Activate the
offroad m ode Q page 223 as
needed.
• Use the
hill desce nt control ~ page 225
when driving down steep sect ions on hills.
Unp aved road s and offroad
Drive slowly on unfamiliar roads and unknown
offroad sections, and look out for unexpected
obstacles (e.g. potho les, rocks , tree stumps ,
etc .).
To prevent the vehicle from bottom ing and
avoid damage to the underbody, you should
d rive st ra ight ac ross severe bumps in the
g round with on ly one s ide of the vehicle so
that on ly two of your wheels cross the bumps. Drive brisk
ly through sandy or marshy offroad
sections and do not stop , if at all possible .
Driving through w ater
Note the following to avoid veh icle damage
when d riving through wate r, for example on
flooded roads :
- The water must not be any higher than the
bottom of the vehicle body.
- Do not dr ive faster than walk ing speed .
Driving on a slope
If you ever find you rself not able to climb a
s lope, do not try to turn around, drive back
down in
r e v erse . Otherwise, you run the r isk
of tipp ing over .
If the veh icle th re at en s to t ip ov er whe n
dr ivin g a cross a slop e, you mus t immediate
ly ste er downhill in the dir ection of th e
s lop e.
Do not park your vehicle on steep slopes or
grades .
To reduce the risk of t ipping over, drive on
s lopes in th e direction of the downward s lope
(fall line) -
not c ross wise.
A WARNING
-After driv ing through water, mud, slush,
etc ., the brakes may be s low to take effect
because of wet brake rotors and pads . D ry
the brakes first by brak ing carefully to re
store t he fu ll braking effect.
(D Note
Vehicle components such as the eng ine,
transmission, suspension or e lectrica l sys
tem can be severe ly damaged by dr iv ing
th rough water .
(D Tips
-Check the depth of the water before d riv
ing through it .
- Do not stop the vehicle, drive in reverse or switch the engine off when driving
through water.
Page 239 of 350
M N
0 ...J
'SI: ,...., \!) ..,.,
,...., ..,., ,....,
-Keep in mind that oncoming vehicles
may create waves that raise the water
l evel and make it too deep for yo ur vehi
cle to drive through safely.
- Avoid driving thro ugh sa lt water because
i t can ca use corrosion.
Driving off road 237
•
•
Page 240 of 350

238 Trailer towing
Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passen
ger transportation .
If you plan to tow a trailer, p lease remember
that the additional load will affect durability,
economy and performance .
Trailer towing not on ly places more stress on
the vehicle, it also calls for more concentra
tion from the driver.
For this reason, always follow the operating
and driving instructions provided and use
common sense.
@ Note
If you are going to tow a trai ler, you must
activate the trailer operation mode
c:::> page 161, Towing a trailer.
Technical requirements
Trailer hitch
Use a weight-carrying hitch conforming to the
gross trailer weight. The hitch must be suita ble for your vehicle and trailer and must be
mounted securely on the vehicle's chassis at a
technically sound location . Use only a trailer
hitch with a removable ball mount. Always
check with the trailer hitch manufacturer to
make sure that you are using the cor rect
hitch.
Do not use a bumper hitch.
The hitch must be installed in such a way that
it does not interfere with the impact-absorb
ing bumper system. No modifications should
be made to the vehicle exhaust and brake sys
tems. From time to time, check that all hitch
mounting bolts remain securely fastened.
When you are not towing a trailer, remove the
trai ler hitch ball mount. This prevents the
hitch from causing damage should your vehi
cle be struck from behind
c:::> A.
Trailer brakes
If your trailer is equipped with a brakin g sys
tem, check to be sure that it conforms to all
regulations.
T he trailer hydraulic brake system must not be
directly connected to the vehicle's hydraulic
brake system
c:::> A .
Safety chains
Always use safety chains between your veh icle
and the tra iler.
Trailer lights
Trailer lights must meet all regulations. Be
sure to check with your authorized Audi dealer
for correct wiring, sw itches, and relays.
Mirrors
If you are unable to see the traffic behind you
using the regular outside mirrors, then you
must install extended mirrors.
It is important
that you always have clear v is ion to the rear .
A WARNING ,-
- If a trailer has electrical brakes please
note that these brakes are not activated
by the factory-fitted control unit -risk of
accident!
- Afte r removing the trailer hitch, do not
store it in yo ur vehicle. In case of sudden
braking, the hitch could fly forward and
injure you or your passengers.
- Never install a "weight distributing" or
"load equalizing" trailer hitch on your ve
hicle. The vehicle was not designed for
these kinds of trailer hitches. The hitch
attachment can fail, causing the trailer
to tear loose from the vehicle.
- The Gross Vehicle Weight Rating for your
vehicle, found on the safety compliance
label on the driver's side B-pillar, must
never be exceeded under any circumstan
ces. Exceeding the Gross Vehicle Weight
Rating of your vehicle is likely to damage
your vehicle, and such damage will not
be covered by your Limited New Vehicle
-
Warranty. Exceeding the Gross Vehicle ~