2011 AUDI A3 trailer

Vehicle operation ...... 188
Inte lligent tec hno logy ....... . 188
Notice abou t da ta recorded by
vehicle control modules . . . . . . . . 188
Electronic Stab ili z ati on Program
(ESP) ................ ........ 188
Braking ...................... 191
E lec tro-mec hanic al power assist 193
Dr iving with your qua ttro ® ...... 194
Energy management ........ ... 194
D rivi ng a nd env iro nm ent ...... 197
T he firs t 1,000 miles (1,500 km)
and af terwa rds ............... 197
Catalytic converter ...... ... ... 1 98
Diesel part iculate filter ......... 199
Avoid damaging the veh ic le ..... 199
Opera te your veh ic le econom ically
and m inimize pollution . . . . . . . . . 200
Trailer towing ................. 202
Driving with a trailer . . . . . . . . . . . 202
Trailer towing tips . . . . . . . . . . . . . 204
Vehicle care .......... .... 206
Cleaning and protect ion .. ..... 206
G eneral informat ion . . . . . . . . . . . 206
Care of exterior . . . . . . . . . . . . . . . 206
Care of interior ........... ..... 213
F uel sup ply and filling y our fuel
tank ....... .............. ..... 219
Gasoline ..... ......... ....... 219
Diesel fuel . . . . . . . . . . . . . . . . . . . . 220
F u el tank . ... ......... ........ 221
Checking and filling ........... 225
Engine hood . . . . . . . . . . . . . . . . . . 225
E ngine compartment .......... 227
E ngi ne oil . . . . . . . . . . . . . . . . . . . . 228
Controls and equip­
ment Safety first
Engine
cooling sys tem . . . . . . . . . 234
Brake fl uid ................... 237
Battery . . . . . . . . . . . . . . . . . . . . . . 238
Windshield washer container . . . 243
T ires and whee ls .............. 245
T ires . . . . . . . . . . . . . . . . . . . . . . . . 245
Tire pressure monitoring system 264
Do-it-yourself service . 270
What do I do now? . . . . . . . . . . . 270
Jack, tools and spa re whee l . . . . . 270
Compac t spare wheel .......... 271
Wheel change ................ 272
Fuses a nd bul bs . . . . . . . . . . . . . . 281
E lec trica l fuses ............... 281
Bulbs ........................ 285
E merg ency si tuati ons . . . . . . . . . 286
G eneral . . . . . . . . . . . . . . . . . . . . . . 286
Starting by pushing or towing
Starting with jumper cables ....
General info rma tion of starting
assistance .................. .
Us e of j umper cab les ......... .
Emergency tow ing w ith
comme rcial tow truck ........ .
Lif ting the vehic le ............ .
Technical data
General in formatn on
Explanation of technical data .. .
Vehicle identification ......... .
Weights .................... .
Dimensions 286
286
287
288
289
292
294
294
294
294
295
295
Table of contents
Data .
. . . . . . . . . . . . . . . . . . . . . . . . . 296
200 hp , 2.0 liter 4-cyl. turbo
gasoline engine . . . . . . . . . . . . . . . 296
140 hp, 2.0 TOI l iter 4-cyl. turbo
clean diesel engine . . . . . . . . . . . . 298
C o nsumer Inform ati on . . . . . . . 299
Warranty coverages . . . . . . . . . . . 299
Operating your vehicle outside the
U.S.A. or Canada . . . . . . . . . . . . . . 299
Aud i Service Repair Manuals and
Li tera ture . . . . . . . . . . . . . . . . . . . . 299
Maintenance . . . . . . . . . . . . . . . . . 299
Add itional accessories,
modif ications and parts
replacemen t . . . . . . . . . . . . . . . . . 301
Alphabetical index . . . . 304
Vehicle operation Vehicle care Do-it-yourself service Technical data

Trailer towing
"---------------------------------------------------
Trailer towing
Driving with a trailer
General information
Your Audi was designed primarily for passenger transpor ­
tation .
If you p lan to tow a t railer, p lease remember that the additional load
w ill affect durability, economy and performance.
Tr ailer towing not on ly p laces mo re s tress on the vehicle, it also calls
for more concentration from the driver.
For this reasons, a lways fo llow the operating and driv ing instr uctions
prov ided and use common sense .•
Technical requirements
Trailer hitch
Use a we ight-carrying hitch conforming to the gross trai ler weight .
Th e h itch mus t be suit able for your veh icle and t railer and mus t be
mounted securely on the vehicle's chassis at a
technically sound l oca­
t ion. Use on ly a tra ile r hi tch w ith removable b all moun t. Alw ays check
w ith the trailer hitch manufacturer to make sure that you are using
t he correc t hitch.
Do not use a bumper hitch .
The hitch must be installed in such a way t hat it does not interfere
w ith the impact -ab sorb ing bumper system. No mod ifi cations s houl d
be made to the vehicle exhaust and brake systems . From t ime to
t ime, che ck t hat all hitch mou nting bolts rema in securely faste ned.
W hen you are no t tow ing a trai ler, remove the trailer hitch ball
mount. This prevents the hitch from ca using damage should your
veh icle be s truck from behind=>&.
Tire pressure
When towing a tra iler, inflate the tires of you r vehicle to the cold tire
pressu re listed under "Full lo ad"on t he st ick er o n the r ight doo rjamb.
I n flate trailer t ires to trai ler and tire manufacturers' specifications .
Lights
The headlight settings should be checked with the tra iler attached
befo re d riving o ff. Have the headlights adjusted as necess ary s o that
you can see the road ahead but not b lind oncoming t raffic.
Check to make s ure bo th vehicle and t railer lights a re wor king prop­
er ly.
Engine cooling system
Towing a trailer ma kes t he engin e work harder. It is important t hat
t he cooling sys tem' s per formance stands up to the add ition al stra in.
M ake sure that the coo ling sys tem has eno ugh fluid .
Trailer brakes
If your trai ler is equipped with a braking system, check to be su re that
it confo rms to all regula tions .
Th e tra ile r hydrau lic brake system must not be directly con nected to
the vehicle's hydraulic b rake system.
Safety chains
Be sure trailer safety cha ins are p roper ly connected from the t rai ler
to the hitch on the vehicle. Leave enough s lac k in t he chai ns to permit
t u rni ng corners. When you insta ll safety chains, ma ke s ure t hey will
not d rag on t he road when yo u are d riving .
The chai ns should cross under the trailer tongue to prevent it from
drop ping in ca se of separat io n from t he hitch.
Trailer lights
Trailer lights must meet all regulat ions. Be su re to chec k w ith your
author ized A udi dealer for correct wiring, switches and relays. _.

Mirrors
If you are unable to see the traffic beh ind you using the regular
outs ide mirrors, then you
must i nstall 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. •
Operating instructions
Maximum trailer weight
A trailer for your vehicle is lim ited to a typ ical class 1 or class 2 tra iler.
Trailer load distribution
Be sure the load in the trailer is held securely in place to guard aga inst
shifting, be it fo rwa rd, backward or sideways.
Never allow a passenger to ride in a trailer ~ & in "Driving instruc­
tions".
Tire pressure
When towing a tra iler, inflate the tires of yo ur veh icle to the co ld tire
pressure listed unde r "Full load" on the sticker on the right doorjamb.
Inflate trailer tires to trai ler and tire manufacturers' specifications.
Lights
T he headlight settings sho uld 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 p roper working of vehicle and tra iler lights.
Controls and equip­
ment Safety first Vehicle operation
Safety
chains
Be sure trailer safety chains are properly connected from the trailer
to the hitch on the vehicle. Leave enough s lack 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 hit ch. •
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.
Weight distribut ion
Towing a loaded trailer with an empty car results in a highly unstable
distribution of we ight. If th is cannot be avoided drive at very low
speeds only to avoid the risk of losing steering control.
A "balanced " rig is easier to operate and control. This means that the
tow vehicle should be loaded to the extent possible and permiss ible
whi le keeping the trai ler as light as possible under the circumstances .
Whenever possible, transfer some cargo to the luggage compart-
Vehicle care Do-it-yourself service Technical data

Trailer towingL _____________________________________________ _
ment 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
immediately if the trailer shows the slightest
sign of swaying .
Do not try to stop the swaying by accelerating.
Observe speed limits . In some areas speeds for vehicles towing
trailers are lower than for regular vehicles .
Always apply 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.
Coolant temperature
The coolant temperature gauge~ page 9 must be observed care­
fully. If the needle moves close to the upper end of the scale, reduce
speed immediately and/or switch off the air conditioner .
If the coolant temperature warning light in the instrument cluster
starts flashing
-t-, pull off the road , stop and let the engine idle for
about two minutes to prevent heat build-up.
& WARNING
Anyone not properly restrained in a moving vehicle is at a much
greater risk in an accident. Never let anyone ride in your car who is
not properly wearing the restraints provided by Audi. •
Trailer towing tips
Important to know
-------------
Your vehicle handles differently when towing a trailer because of the
additional weight and weight distribution. Safety, performance and
economy will greatly depend on how carefully you load your trailer
and operate your rig.
Before you actually tow your trailer, practice turning, stopping and
backing up in an area away from traffic. Keep practicing until you have
completely become familiar with the way your vehicle-trailer combi­
nation behaves and responds.
Backing up is difficult and requires practice. Backing up with a trailer
generally requires steering action 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.
To compensate for the trailer, you will need a larger than normal
turning radius .
When passing, remember that you cannot accelerate as fast as you normally would because of the added load. Make sure you have
enough room to pass. After passing, allow plenty of room for your
trailer before changing lanes again.
Avoid jerky starts, sharp turns or rapid lane changes.
[I] Tips
• Do not tow a trailer during the break-in period of your vehicle .
• If you tow a trailer, your Audi may require more frequent mainte­
nance due to the extra load~
page 299. •

Parking on a slope
Do not park with a trailer on a slope. If it cannot be
avoided, do so only after doing the following:
When parking:
-Apply the foot brake.
- Have someone place chocks under both the vehicle and the
trailer wheels.
- With chocks in place, slowly release the brakes until wheel
blocks absorb the load.
- Turn the wheels towards the curb.
- Apply the parking brake.
- Place an automatic transmission in
P, respectively a
manual transmission in first or reverse gear.
When restarting after parking:
- Start the engine .
- Shift transmission into gear .
- Release the parking brake and slowly pull out and away from the wheel blocks .
- Stop and have someone retrieve the wheel blocks.
[I] Tips
If you move the selector lever of the automatic transmiss ion to P
before applying the parking brake and before blocking the wheels,
you may have to use more force later to move the leve r out of the
P
position. •
Controls and equip­ ment Safety first Vehicle operation
Vehicle care Do-it-yourself service Technical data

Tires and wheels Ill
----------------
Engine Tire designation Tire pressure front Tire pressure rear
(displace- normal load normal load
ment in
liter ) condition (up full load condition (up full load
to 3 occu- condition to 3 occu- condition
pants) pants)
PSI kPA PSI II kPA PSI II kPA PSI II kPA
4-cylinder 205/55 R1 6 91H All Season 36 250 39 270 30 210 36 250
2 .0 TDI
225 /45 Rl 7 94H XL All Season 38 260 41 280 32 220 38 260 (clean diesel )
225 /45 R1 7 94V XL High Performance
35 240
38 260
30 210
35 240
225
/40 R18 92V XL High Performance 35 240 38 260 30 210 38 260
Compa ct spare wheel T125 /70 R18 60 420 60 420 60 42 0 60 420
XL = reinforced or extra load tire . It may also appear as x i, EXTRA LOAD , or RF on the tire sidewall.
The correct tire pressure for the
spare wheel is located on a label
ei ther on the driver 's s ide B -pillar or inside the fuel fille r flap.
Because technical changes may be made to vehicle equipment dur ing
the model year, a lways compare the tire size des ignation on the tire
pressu re label on you r vehicle w ith the t ires on your veh icle . Make
sure that the tire si ze information on the vehicle labe l is the same as
the s ize of the t ires o n the vehicle . This is especially important if the
vehicle belongs to someone else or you bought the vehicle with
different r ims/ tires or you bo ugh t the vehicle as a previously owned
vehicle. pants and
luggage or other cargo that the vehicle can carry. For the
location o f the tire p ressure label=>
page 249, fig. 17 1.
& WARNING
Overloading a vehicle can cause lo ss of vehicle control , a cra sh or
othe r accident, serious personal injury , and even death .
• Carrying more we ight than your vehicle wa s designed to carry
will p revent the vehicle from handling prope rly and increa se the
risk of a lo ss of vehicle control.
• The brake s on a vehicle that has been o verloaded may not be
able to stop the v ehicle within a saf e distance .
• Tires on a vehicle that has been ove rloaded can fail suddenly
causing loss of control and a crash .
• Always make sure that the tot al load being transported -
including the weight of a trailer hitch and the tongue weight of a
loaded trailer -doe s not make the vehicle hea vier than the
I
I
Remember, your safety and tha t of your passengers also depends on
maki ng sure that load lim its are not exceeded . Vehicle load includes
everybody and everything in and on the vehicle. These load limits are
technically referred to as the ve hicle's G ross Vehicle Weig ht Rating
("GVWR") . The Gross Axle Weight Rat ing ("GAWR") is the max imum
load th at c an be applied at ea ch of the veh icle 's two ax les. The G ross
Vehicle Weight Rat ing and the Gross Ax le We ight Rating are listed on
t he safety comp liance st ic ke r label lo cated ei ther on the d river 's s ide
B-pillar or on the inside of the fuel filler f lap. The tire p ressure label
on yo ur Audi lists t he maximum com bined weight o f all of the occu -
vehicle 's Gross V ehicle We ight Rating. ~
Safety first Vehicle care Technical data

_L_T.:...:..: i r~ e:.: s~ a:::. n:..:..:: d:.....: w..:...:. h::e:.: e::.:: ls::::._ ______________________________________________ _
is more difficult to stop. Overloading can not only lead to loss of
vehicle control, but can also damage important parts of the vehicle
and can lead to sudden tire failure, including a blowout and sudden
deflation that can cause the vehicle to crash.
Your safety and that of your passengers also depends o n making sure
that load limits are not exceeded. Vehicle load includes everybody
and everything in and on the vehicle. These load limits are techn ically
referred to as the veh icle's
Gross Vehicle Weight Rating ("GVWR").
Th e "GVWR" includes the weight of the basic vehicle, all factory
installed accessories, a full tank of fuel, o il, coolant and other fluids
plus maximum load. The maximum load includes the number of
passenge rs that the vehicle is intended to carry ("seating capacity")
with an assumed weight of 150 lbs (68 kg) for each passenger at a
designated seating posit ion and the total weight of any luggage in
the vehicle. If you tow a trailer, the weight of the trailer hitch and the
tongue weight of the loaded trailer must be included as part of the
vehicle load.
T he Gross Axle Weight Rating ("GAWR") is the maximum load that
can be applied at each of the vehicle's two ax les.
The Gross Vehicle We ight Rating and the Gross Axle Weight Rat ing
are listed on the safety compliance sticker label located e ithe r on the
dr iver's s ide B-pillar or on the inside of the fuel filler flap. Your Audi
has 5 seating positions, 2 in the front and 3 in t he rear for total
seating capacity of 5. Each seating position has a safety belt
=> page 135, "Safety belts".
The fact that there is an upper limit to your veh icle's Gross Veh icle
Weight Rating means that the total weight of whatever is being
carried in the veh icle (in cluding the weight of a trailer hitch and the
tongue weight of the loaded trailer) is limited . The more passengers
in the vehicle or passengers who are heavier than the standard
we ights assumed mean that less we ight can be carr ied as luggage.
Th e tire pressure label on your A udi also lists the maximum combined
we ight of all of the occupants and luggage or other cargo that the
vehicle can carry. For the location of the labe l=>
page 249, fig. 171.
& WARNING
Overloading a vehicle can cause loss of vehicle control, a crash or
other accident, serious personal injury, and even death.
• Carrying more weight than your vehicle was designed to carry
will prevent the vehicle from handling properly and increase the
risk of the loss of vehicle control.
• The brakes on a vehicle that has been overloaded may not be
able to stop the vehicle within a safe distance.
• Tires on a vehicle that has been overloaded can fail suddenly,
including a blowout and sudden deflation, causing loss of control
and a crash.
• Always make sure that the total load being transported -
including the weight of a trailer hitch and the tongue weight of a
loaded trailer -does not make the vehicle heavier than the
vehicle's Gross Vehicle Weight Rating .•
Determining correct load limit
Use the example below to calculate the
total weight of the passengers and luggage
or other things that you plan to transport so
that you can make sure that your vehicle
will not be overloaded. ._

Steps for Determining Correct Load Limit
1.Locate the statement "THE COMBINED WEIGHT OF OCCUPANTS AND CARGO
SHOULD NEVER EXCEED XXX KG OR XXX LBS"on your vehicle's placard (tire infla­
tion pressure label) =>
page 249,
fig. 171.
2. Determine the combined weight of the driver and passengers that will be riding in your vehicle.
3. Subtract the combined weight of the driver and passengers from
"XXX" kilo­
grams or
"XXX" pounds shown on the
sticker =>
page 249, fig. 171.
4. The resulting figure equals the available amount of cargo and luggage load
capacity. For example, if the
"XXX"
amount equals 1400 lbs. and there will be five 150 lbs . passengers in your
vehicle, the amount of available cargo
and luggage load capacity is 650 lbs.
(1400-750 (5
X 150) = 650 lbs.)
Safety first
Tires and wheels -
5. Determine the combined weight of
luggage and cargo being loaded on the
vehicle. That weight may not safely exceed the available cargo and luggage
load capacity calculated in Step 4.
6. If your vehicle will be towing a trailer ,
load from your trailer will be transferred
to your vehicle. Consult this manual to
determine how this reduces the available cargo and luggage load capacity of your
vehicle.
- Check the tire sidewall(=>
page 257,
fig. 175) to determine the designated
load rating for a specific tire . •
Vehicle care Technical data