2010 AUDI S3 weight

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Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passenger transpor­
tation.
If you plan to tow a trailer, please remember that the additional load
wi ll affect durability, economy and performance.
Trai ler towing not on ly p laces more stress on the vehicle, it a lso ca lls
for more concentration from the driver.
For this reasons, always fo llow the operating and driving instruc ­
tions provided and use common sense. •
Technical requirements
Traile r hit ch
Use a weight -carrying hitch conforming to the gross trailer weight.
The hitch must be suitab le for your vehicle and tra iler and must be
mounted secure ly on the vehicle's chassis at a
technically sound
location . Use only a trailer hitch w ith removable ball mount. A lways
check with the trai ler hitch manufacturer to make sure that you are
using the correct hitch .
Do not use a bumper hit ch .
The hitch must be installed in such a way that it does not interfere
w ith the impact-absorbing bumper system . No modifications
should be made to the vehicle exhaust and brake systems. From
time to time, check that all hitch mount ing bolts remain securely
fastened.
When you are not towing a trailer, remove the trailer hitch ball
mount. This prevents the hitch from causing damage should your
vehic le be struck from behind
=:> & .
Tire pre ssure
When towing a trailer, inflate the tires of your vehic le to the cold tire
pressure listed under "Full load"on the sticker on the right door­
jamb. Inflate trai ler tires to trai ler and tire manufacturers' specifica ­
tions.
Lights
The head ligh t settings should be checked wit h the trai ler attached
before driving off. Have the head lights adjusted as necessary so
t hat you can see the road ahead but not blind oncoming traffic.
Check to make sure both vehicle and trailer lights are working prop ­
erly.
Engin e cool ing sy stem
Towing a t rai ler makes the engine wo rk ha rder . It is important that
the cooling system's performance stands up to the additiona l
strain. Make sure that the coo ling syste m has enoug h fluid.
Traile r br akes
If your traile r is equipped wi th a braking system, check to be sure
that it conforms to al l regu lations.
T he trailer hydraulic brake system must not be directly connected to
the vehic le's hydrau lic brake sys tem.
Safety chai ns
Be sure trailer safety chains are properly connected from the trailer
to the h itch on the vehicle. Leave enough slack in the chains to
permit turning 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. _.

Trailer lights
Trailer lights must meet all regulations. Be sure to check with your
authorized Audi dealer for correct wiring, switches 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 impor­
tant that you
always have clear vision to the rear .
& WARNING
After removing the trailer hitch, do not store it in your vehicle. In
case of sudden braking, the hitch could fly forward and injure you
or your passengers .
.1
Operating instructions
Maximum trailer weight
A trailer for your vehicle is limited to a typical class 1 or class 2
trailer.
Trailer load distribution
Be sure the load in the trailer is held securely in place to guard
against shifting, be it forward, backward or sideways.
Never allow a passenger to ride in a trailer:::::, & in "Driving instruc­
tions".
Tire pressure
When towing a trailer, inflate the tires of your vehicle to the cold tire
pressure listed under "Full load" on the sticker on the right door­
jamb. Inflate trailer tires to trailer and tire manufacturers' specifica­
tions.
Controls and equip­ ment Safety first Vehicle operation
Trailer towing
Lights
The
headlight settings should be checked with the trailer attached
before driving off. Adjust as necessary so that you can see the road
ahead but not blind oncoming traffic.
Check proper working of vehicle and trailer lights.
Safety chains
Be sure trailer safety chains are properly connected from the trailer
to the hitch on the vehicle. Leave enough slack in the chains to
permit turning 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. •
Driving instructions
Driving with a trailer always requires extra care and
consideration.
To obtain the best possible handling of vehicle and trailer,
please note the following:
Do not tow a loaded trailer when your car itself is not
loaded.
- Be especially careful when passing other vehicles.
Observe speed limits.
Do not drive at the maximum permissible speed.
- Always apply brakes early.
Monitor the temperature gauge.
Vehicle care Do-it-yourself service Technical data

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Weig ht dis tributi on
Towing a loaded trailer with an empty car resu lts in a high ly
unstable distribution of weight . If this cannot be avoided drive at
very low speeds on ly to avoid the risk of losing steering control.
A "ba lanced" rig is easier to operate and control. This means that
the tow vehicle should be loaded to the extent possible and permis ­
sib le while keeping the trai ler as light as possib le under the circum ­
stances. Whenever possible, transfer some cargo to the luggage
compartment of the tow vehicle while observing tongue load requirements and vehicle loading considerations .
Speed
The higher the speed, the more difficult it becomes for the driver to
control the rig . Do not drive at the maximum permissible speed.
Reduce your speed even more under unfavorable load, weather or
wind conditions -particularly when going downhill.
Reduce vehicle speed
imm ed ia tely if the trailer shows the sl ightest
sign of swaying. Do not try to s top the s wayi ng by a ccelerating .
Observe speed limits . In some areas speeds for vehicles towing
trai lers are lower than for regular vehicles.
Always app ly brakes early. When driving downhill, shift into lower
gear to use the engine braking effect to slow down the vehicle. Use
of the brakes alone can cause them to overheat and fail.
C oo la nt tempe ra tu re
The coolant temperature gauge ~ page 9 must be observed care ­
ful ly. If the needle moves close to the upper end of the scale, reduce
speed immediately and/or switch off the air condit ioner.
If the coolant temperature warning light in the instrument cluster
starts flashing -~-, pull off the road, stop and let the engine
idle for
about two minutes to prevent heat build -up .
& WARNING
An yone not p rope rly res train ed in a mo ving vehi cle is a t a mu ch
gre ater risk in a n accident. Neve r let an yone ride in your car who
is not p rop erly we ari ng th e res tra int s pro vide d b y Aud i.
c
Trailer towing tips
Important to know
Your vehicle handles different ly when towing a trailer because of
the additional weight and weight distribution . Safety, performance
and economy w ill great ly depend on how carefu lly you load your
trailer and operate your rig.
Before you actually tow you r trailer, practice turn ing, stopping and
backing up in an area away from traffic. Keep practicing unti l you
have complete ly become familiar with the way your vehicle -trailer
combination behaves and responds .
Backing up is difficult and requires practice. Backing up with a
trailer genera lly requires steering ac tion opposite of that when
backing up your vehicle without a trailer .
Maintain a greater distance between your vehicle and the one in
front of you. You will need more room to stop.
T o compensate for the trailer, you wi ll need a larger than normal
turning radius .
When passing, remember that you cannot accelerate as fast as you n ormal ly wou ld because of the added load . Make su re you have
enough room to pass. After passing, al low plenty of room for your
trailer before changing lanes again .
Avoid jerky starts, sharp turns o r rapid lane changes.

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Tires and wheels
Tires
General notes
Tires may be the least appreciated and most abused parts
of a motor vehicle.
Tires may be the least appreciated and most abused parts of a
motor vehicle. Tires are, however, one of the most important parts
of a vehicle, particu larly considering the comparatively small patch
of rubber on each tire that assures that all -important contact
between you, your vehic le and the road.
Maintaining the correct tire pressure, making sure that your vehicle
and its tires do not have to carry more weight than they can safely
handle, avoiding damage from road hazards and regularly inspecting tires for damage inc luding cuts, s lashes irregular wear
and overa ll condition are the most important things that you can do
to help avoid sudden tire failure including tread separation and
blowouts.
A vo iding d am age
If you have to drive over a curb or similar obstac le, drive very slowly
and as close as possible at a right angle to the curb.
A lways keep chemica ls including grease, oi l, gaso line and brake
fluid off the tires.
Inspect the ti res regu larly for damage (cuts, cracks or b listers, etc.l .
Remove any foreign bodies embedded in the treads.
Storing tir es
Mark tires when you remove them to indicate the direction of rota ­
t ion. This ensures you to be able to mount them correctly when you
reinstal l them. When removed, the wheels or tires shou
ld be stored in a coo l, dry
and preferably dark place.
S tore tires in a vertical pos it ion if they a re not mounted on r ims, in
a horizonta l position if they are mounted on rims.
New tir es
New tires have to be broken in=>&.
The tread depth of new ti res may vary, according to the type and
make of tire and the tread pattern.
H idd en damage
Damage to tires and rims is often not readily visible. If you notice
unusual vibration or the vehicle pu lls to one s ide, this may indicate
that one of the tires has been damaged . The tires must be checked
immediately by an authorized Audi dealer or qualified workshop .
Unidire cti ona l t ires
A unidirectional tire can be identif ied by arrows on the sidewa ll, that
point in the direction the tire is designed to rotate . You must fo llow
t he specified directio n of rotation . This is necessary s o that these
tires can develop their optimum characteristics regarding grip, road noise, wear and hydrop laning resistance . For more information
=>
page 277.
& WARNING
New t ires o r ti re s th at a re old , worn or d am aged cann ot pro vid e
maximum cont rol and braking ability .
• New tires te nd to be slippery and mu st be bro ken in . To redu ce
the ri sk o f lo sin g co ntro l, a collis ion and serious per sonal injurie s,
dri ve w ith special care f or the fi rst 350 m ile s ( 560 km l.
• Driving w ith w orn or damaged tire s can lead to lo ss of control ,
sudd en tir e fa ilure , inc ludi ng a blowout a nd sudden defl atio n, ..,_

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•
& WARNING (continu ed )
crashes and serious personal in jur ies . Have worn or da maged t ires
replaced immediately .
• Tires age even if they are not being u sed and can fail suddenly ,
especially at high speeds. T ires that are more than 6 years old can
only be used in an emergency and then w ith special care and at
low speed.
Glossary of tire and loading terminology
Accessory weight
means the co mbined we ig ht ( in excess o f those sta nda rd items
which may be rep laced) of automatic transmission, power steering,
power brakes, power w indows, powe r seats, rad io, a nd heater, to
the extent that these items are avai lab le as factory-installed equip­
m ent (w hether insta lled or not).
Aspect ratio
means t he ratio o f th e height to t he w idt h of the tire in perce nt.
N umbers of 55 or lower indicate a low sidewa ll for improved
steer ing respo nse and b ette r overall ha ndl ing on dry pave ment.
Bead
means the part of the tire that is made of stee l wires, wrapped or
reinforced by ply cords and that is shaped to fit the rim.
Bead separation
means a breakdow n of the bond be tween co mponents i n the bead.
Cord
means the strands fo rmi ng the plies in the ti re.
& W ARNING (continued )
• Never mount used tires on your vehicle if you are not sure of
their "previous history. " Old used t ire s may ha ve been damaged
even though the damage cannot be seen that can lead to sudden
tire failure and lo ss of vehicle control.
• If you noti ce unusual vibration or if the vehicle pulls to one side
when driving , always stop as soon as it is safe to do so and check
the wheels and tires for damage . •
Cold tire inflation pressure
mea ns t he ti re pressure reco mm ended by the ve hicle ma nufacturer
for a tire of a designated size that has not been d riven for more tha n
a cou ple o f miles (k ilometers) at low speeds in t he t hre e ho ur per iod
before the tire pressure is measured or ad justed .
Curb weight
means the weight of a moto r vehic le with standard equipment
i nc lud ing the max imu m capac ity o f fue l, o il, and coola nt, a ir c ond i­
tioning and additiona l weight of optional equipment.
Extra load tire
means a tire designed to ope rate at higher loads and at higher infla­
tion pressures than the corresponding standard tire. Extra load tires
my be identified as "XL",
"xi", "EX TRA LOA D", or "RF" on the side ­
wa ll.
Gross Axle Weight Rating ("GAWR ")
means the load -carrying capacity of a sing le ax le system, measured
at the ti re -ground interfaces.
Gross Vehicle Weight Rating ("GVWR "l
means the ma ximum tot al l oade d weigh t of the vehicle.
Vehicle care I t •

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Groove
means the space between two adjacent tread ribs.
Load rating (code)
means the maximum load that a tire is rated to carry for a given
inflation pressure . You may not find this information on all tires
because it is not required by law.
Maximum load rating
means the load rating for a tire at the maximum permissible infla­
tion pressure for that tire.
Maximum loaded vehicle weight
means the sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight, and
(d) Production options weight
Maximum (permissible) inflation pressure
means the maximum cold inflation pressure to which a tire may be
in flated. Also called "maximum inflation pressure ."
Normal occupant weight
means 150 lbs. (68 kilograms) times the number of occupants
seated in the vehicle up to the total seating capacity of your vehicle.
Occupant distribution
means distribution of occupants in a vehicle .
Outer diameter
means the overall diameter of an inflated new tire.
Overall width
means the linear distance between the exteriors of the sidewalls of
an inflated tire, including elevations due to labeling, decorations, or
protective bands or ribs .
Ply
means a layer of rubber -coated parallel cords.
Production options weight
means the combined weight of those installed regular production
options weighing over 5 lbs. (2.3 kg) in excess of those standard
items which they replace, not previously considered in curb weight
or accessory weight, including heavy duty brakes, ride levelers, roof rack, heavy duty battery, and special trim.
Radial ply tire
means a pneumatic tire in which the ply cords that extend to the
beads are laid at substantially 90 degrees to the centerline of the
tread.
Recommended inflation pressure
see =:> page 243, "Cold tire inflation pressure".
Reinforced tire
means a tire designed to operate at higher loads and at higher infla­
tion pressures than the corresponding standard tire. Reinforced
tires my be identified as "XL", "xi", "EXTRA LOAD", or "RF" on the
sidewall.
Rim
means a metal support for a tire or a tire and tube assembly upon
which the tire beads are seated .
Rim diameter
means nominal diameter of the bead seat. If you change your wheel
size, you will have to purchase new tires to match the new rim diam ­
eter.
Rim size designation
means rim diameter and width.
Rim width
means nominal distance between rim flanges .

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Sidewa ll
means that portion of a tire between the tread and bead.
Speed ra ting means the speed at which a t ire is designed to be driven for
extended periods of time. The ratings range from 93 mph (150 km/h)
t o 186 mph (298 km/h) =>
page 256. You may not find this informa ­
tion on all tires because it is not required by law.
The speed rating letter code, where applicab le, is molded on the tire
sidewal l and indicates the maximum permissible road speeds.=:>
&
in "Winter tires" on page 259
T ire pre ssu re m onit orin g sys te m *
means a system that detects when one or more of a vehicle's tires
are under inflated and illuminates a low tire pressure warning tell ­
tale .
Tre ad
means that portion of a tire that comes into contact with the road .
Tread se para ti on
means pu lling away of the tread from the tire carcass.
Tr eadw ear indi cato rs ( TWI)
means the projections with in the principal grooves designed to give
a visual indication of the degrees of wear of the tread. See
~ page 253, "Tread Wear Indicator (TWI)" for more information on
measuring tire wear.
U ni form Tire Q ua lity G rading
is a tire information system developed by the United States Nationa l
Highway Traffic Safety Administration (N HTSA) that is designed to
help buyers make re lative comparisons among tires. The UTQG is
not a safety rating and not a guarantee that a tire will last for a
prescribed number of miles or perform in a certain way. It simply
gives tire buyers additiona l information to combine with other
considerations, such as price, brand loya lty and dealer recommen- dations
. Under UTQG, tires are graded by the tire manufacturers in
three areas : treadwea r, trac tion and temperature resistance. The
U TQG information on the tires, molded into the sidewalls.
U .S . DOT Tire Identifi cation Number (TIN )
This is the tire's "serial number" It begins with the letters "DOT" and
indicates that the ti re meets a ll federa l standards. The next two
numbers or letters indicate the plant where it was manufactured,
and the last four num bers represent the week a nd year of manufac ­
ture. For example,
DOT ... 2209 ...
means that the tire was produced in the 22nd week of 2009. The
other numbers are marketing codes that may or may not be used by
t he tire manufacturer. This information is used to contact
consumers if a tire defect requires a recall.
Vehicle capa cit y weight
means the rated cargo and luggage load plus 150 lbs. (68 kilograms)
times the vehicle's tota l seating capacity as l is ted on the label
located either on the driver's side 8-pillar or on the inside of the fuel
f iller flap .
Vehicle maximum lo ad on the tire
means that load on an individual tire that is determined by distrib ­
uting to each axle its share of the maximum loaded vehic le weight
and dividi ng by two .
Vehi cle normal load on t he tire
means that load on an individual tire that is determined by d istr ib ­
uting to each axle its share of the curb weight, accessory weight,
and normal occupant weig ht (distribute d in acc orda nce with table
below=>
page 246) and dividing by two. .,
Vehicle care I t •

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Occupant loading and distribution for vehicle normal load for various designated seating capacities
Designated seating capacity, num­
ber of occupants Vehicle normal load, number of
occupants Occupant distribution in a normally
loaded vehicle
5 3
2 in front, 1 in back seat
Cold tire inflation pressure
Tire
pressure affects the overall handling, performance and safety of a vehicle.
Fig. 173 Tire pressure
label: located either on
driver's side B-pillar or
inside the fuel filler flap
Tire pressure generally refers to the amount of air in a tir e that it
needs it to do its job and safely carry the combined load of the entire
vehicle and its contents. Tire pressure is measured in kilopascals
(kPa), the international measuring unit and in pounds per square
inch (PSI). Tire pressure is based in part on the vehicle's design and
load limit -the greatest amount of weight that the vehicle can carry
safely and the tire size. The proper tire pressure is frequently
referred to as the "recommended cold tire inflation pressure." Air in
the tires expands when the tire heats up because of internal friction
when it flexes in use. The tire pressure is higher when the tire has
warmed up than when it is "cold ." It is the inflation pressure in a
"cold" tire that counts. Therefore, you should never let air out of a
warm tire to match "cold tire inflation pressure" recommendations .
The tires would then be underinflated and could fail suddenly.
SIZf COlD fflE PRESSUAf DIMENSION'S MfSSK)N DE$ l"NEV$ A fFIOiD
- KPA .• PSI
- KPA .• PSI
- KPA .• PSI
Fig. 174 Tire pressure
label
Maintaining proper tire pressure is one of the most important
th ings you can do to help avoid sudden tire failure . Underinflated
tires are a major cause of sudden tire failure. Keeping tires at the
right pressure is also important for safe and responsive vehicle
handling, traction, braking and load carrying .
Tire pressures are
particularly important when the vehicle is being driven at higher
speeds, and then especially when heavily loaded even within the
permissible load -carrying capacities approved for your vehicle.
The recommended tire pressures for your Audi depend on the kind
of tires on your vehicle and the number of passengers and/or
amount of luggage you will be transporting.
On USA vehicles, the tire pressure label is located on driver's side B ­
pillar. On Canada vehicles, the tire pressure label is located either on
the driver's side B -pillar or inside the fuel filler flap. The tire pressure
•
label lists the recommended cold tire inflation pressures for the .,