2013 AUDI S4 SEDAN trailer

_& WARNING
-Sensors have dead spaces in which ob­
jects cannot be detected. Be especially
alert for small children and animals,
since they are not always detected by the
sensors.
- The acoustic park ing system is not a sub­
st itute for the driver 's own caution and
alertness. Ultimate responsibi lity always
remains with the driver during parking
and simi lar maneuvers . Always watch
where you are driving.
- You should always adjust the volume and
frequency of the warning tones so that
yo u can easily hear the acoustic distance
warning even if the radio is p laying, the
air-cond itioner blower is on High or there
is a high level of outside noise .
- Check the settings whenever anyone
else has driven the vehicle before you.
(D Note
-Remember that low obstacles for which
a warn ing has already been issued may
"dive" below the system's sensing zone if
the vehicle is being backed up closer. In
this case, the warning sound shutting off
does
not in dicate that you have cleared
the obstacle . Instead, impact is immi­
nent.
- Objects such as trailer hitches, chains,
narrow posts or fences covered by a th in
l ayer of paint may not always be detect­
ed by the system. They can still damage
your vehicle without warning .
@ Tips
Keep the sensors in the rear bumper clean
and free of snow and ice so that the acous­
tic parking assist system can function
properly.
Park assist 115
Adjusting the warn ing tones
Applies to vehicles: with parking system (rear)
The warning tones can be adjusted in the
MM!*.
.. Select: I CAR ! function button > Parking sys­
tem .
Or
.. Select:
I CAR I function button > Car systems
contro l butto n > Driver assist > Parking aid .
- Rear volume -
rear sensor vo lume
- Rear frequency -rear sensor frequency
-Music volume while parking -when the
parking system is switched on, the volume
of the active audio source is lowered.
The newly adjusted value is briefly heard from
the signal generator. The settings are auto­
matically stored and assigned to the master
key w ith remote control.
Parking system (rear,
with rear view camera)
Introduction
Applies to vehicles: with parking system (rear, wit h rear
view camera)
Fig . 114 Parking mode
1: reve rse parki ng
Fig . 115 Parking mode 2 : pa rallel parki ng
q
" "' CD

The accuracy of the orientation lines and blue
surfaces diminis hes if:
- the rear view camera does not prov ide a re li­
able image, for examp le, in poor vis ibility
conditions or if the lens is dirty,
- the image on the screen is not visible due to
sun g lare and reflection .
Caring for th e rear view came ra lens
The rear view camera is located above the rear
license plate b racket . Fo r the pa rking assist to
ope rate, the lens,=:,
fig. 117 must be kept
clean:
- Dampen the lens with a househo ld alcohol­
based glass cleane r, and clean the lens with
a dry cloth
,=:, CD.
- Remove s now with a hand brush and ice
prefe rably with a de-icing spray
,=:, (D .
A WARNING
- T he pa rking aid cannot repla ce the dr iv­
er's attention. The driver a lone is respon­
sible for parking and similar driving ma­
neuvers .
- Always keep your eyes on the vehicle's
su rroundings, using the rear view mirror
as well.
- Do not a llow yourse lf to be d istracted
from traffic by the rear view camera pic­
tures.
- If the position and the installation ang le
of the camera has changed, fo r example,
after a rear end collision, do not continue
to use the system for safety reasons. Have it checked by a qua lified dealership.
(D Note
- Low obstacles already signaled by a
warning can disappear from the system's
detection range as they are approached
and will not continue to be signaled . Ob­
jects such as barrier cha ins, trailer draw
bars, thin pa inted ve rtical po les o r fe n­
ces may not be detected by t he system,
pos ing risk of damage.
- Never use warm or hot water to remove
s n ow or ice from the rear view camera
.
P ark a ssis t 11 7
lens -dange r of crack format ion on the
lens !
- When cleani ng the lens, never use prod­
ucts that a re ab rasive.
Switching on/off
Applies to vehicles: with parking system (rear, with rear
view camera)
The rear view camera switches on automati­
cally together with the acoustic park assist
when you put the vehicle in reverse.
Switching on
"' Put the veh icle in reverse gear, the acoust ic
parking system with rear view camera is ac ­
tivated automat ica lly. Act ivat ion of the
acoust ic par king system is confirmed by a
brief ac knowledgement sou nd.
Switching off
"' Drive faster than 9 mph (15 km/h) , or
"' take the vehicle out of reverse gear . The
acoust ic park ing system is immediate ly de­
activated, and the rea r view came ra p icture
is deact ivated a utomat ically afte r a pe riod
o f abo ut 1 5 seconds , or
"' switch off the ignition.
T he de lay in deact ivat ing the came ra prov ides
an unin terrup ted view beh ind the ve hicle es­
pe cially when mane uver ing in tig ht park ing
spaces and prevents the picture from t urning
off the every time you shift out of reverse .
If the wa rning mess age ap pears in the dis play
but not the rea r view came ra p icture, read and
confirm the warni ng message. The acoustic
distance signal is always active .
If you press a fu nction button on the M MI
control console, the rea r view came ra p icture
disappears . The rear view camera picture reap­
pears the next time yo u pa rk.
Fur the r in forma tion on the warning mess age
and the MMI con tro l conso le can be found in
the MMI instruction book let.
Ill-

118 Park ass is t
@ Tips
- The rear view camera picture is avai lable
as soon as the MMI D isplay or the MMI is
switched on, or the start-up phase is
completed.
- Keep the sensors in the rear bumper and the rear view camera lens clean and free
of snow and ice, so that the parking sys­
tem can work properly . Please follow the
additional notes on
~ pag e 120.
Reverse Park ing
App lies to vehicles: with parking system (rear, wit h rear
view came ra)
Parking mod e 1 can be used when parking in
a garage or parking space.
F ig. 1 18 MMI Di splay : Aim ing at a p arkin g spot
F ig . 119 MMI Disp lay: Ali gning th e vehi cle
"' Switch the MMI on and se lect the reverse
gear.
"' Turn the steering wheel until the orange
orienta tion lines
(D appear in the parking
spot ¢
fig. 118 . Use the mark ings @to help
yo u estimate the distance from an obstacle .
Each marking corresponds to 3
ft (1 m) . T he
blue a rea represents an extension of the ve- hicle's outline by approximate
ly 16
ft (5 m)
to the rear .
"' Wh ile driving in reverse gear, adjust the
steering whee l angle to fit the parking space
w ith the aid of the orange or ientation lines
¢ 0 . @ marks the rear bumper . You should
stop d riving in reve rse as soon as and no lat­
er than when the red orientation line©
abuts a n obje ct ¢ _&. !
_& WARNING
- The rear view c amera does not show t he
e ntire area behind t he vehicle
¢ page 116, fig . 11 6. Watch out espe­
cially for small children and anima ls. The
rear view camera cannot always detect
them, posing risk of an accident!
- Please note that objects not touching the
ground can appear to be further away
than they really a re (for example, the
bumper of a parked vehicle , a trailer
h itch, o r the rea r of a truck). In this case,
you shou ld not use the h elp lines to help
wit h pa rking, wh ich poses danger of a n
a ccident!
(D Note
- Low obstacles a lready s ignaled by a
wa rning can disappear from th e system's
detec tion range as they are approa ched
and w ill not con tinue to be signaled. Ob­
jec ts such as barr ier chains, tr ailer draw
bars, thin painted vertica l poles or fen ­
ces may not be detecte d by the system,
posing risk of damage.
- In the MMI display, t he direction of trav­
el of the vehicle rear is represented de ­
pending on the steering wheel angle.
The ve hicle fro nt swings out more tha n
the vehicle rear . Maintain plenty of d is­
tance from an obstacle so that your out­ side mirror o r a corner of you r vehicle
d oes not co llide w it h any obs ta cl es -d an­
ger of accident!

Parallel Parking
Applies to vehicles: with parking system (rear, with rear
view ca mera)
Use parking mode 2 to help you pork on the
edge of o street.
F ig. 120 MMI Display : bl ue s urface in the park ing spot
Fig. 121 MMI Display: Blue curve on t he cur b
The following steps app ly only when there is
no obstacle (such as a wall) near the parking
spot. Otherwise, please read the "Tips on
Parking Next to Obstacles".
• Activate the turn signal.
• Switch the MM I on and se lect the reverse
gear. The parking aid turns on and park ing
mode 1 appears on the display.
• Position your vehicle parallel to the edge of
the street, approximately 3 ft (1 m) from a parked vehicle .
• Press the
Mode ¢ fig. 120 © control but­
ton on the MMI control console. Parking
mode 2 appears.
• Back up in reverse gear and align your vehi­
cle so that the blue area
@ borders on the
rear end of the vehicle o r on the parking
spot line . The blue area represents an exten­
s ion of the vehicle's outline by approximate­
ly 16 ft (5 m) to the rear . The long s ide of
Park assist 119
the blue area shou ld be on the curb. The en­
tire blue area must fit into the parking spot.
• Wh ile the vehicle is stat ionary, turn the
steer ing whee l to the right as far as it wi ll
go.
• Back into the parking spot . Stop the vehicle
as soon as the blue curve touches the curb
¢ fig . 121 .
• Wh ile the vehicle is stationary, turn the
steering wheel to the left as far as it will go.
• Continue to back up into the parking spot
until the vehicle is parked parallel to the
curb .@ marks the rear bumper. You should
stop driving in reverse as soon as and no lat­
er than when the red orientat ion line @
abuts an object¢_& ! Keep an eye on the
front of your vehicle while doing this
¢ 0 .
Parking next to obstacles
When there is an obstacle (such as a wall)
next to the parking spot, choose a spot with
more space on the sides. Posit ion the long
s ide of the blue area so that there is suff ic ient
space from the curb. The area must not be on
the curb . You will also need to start tu rning
the steer ing wheel much earlier. There should
be a sufficient amount of space between the
c urb and the blue curve, and the blue curve
¢fig.121 must nottou chthec urb.
&_ WARNING
- The rear view camera does not show the
entire area behind the vehicle
¢ page 116, fig. 116. Watch out espe­
cially for small children and animals. The
rear view camera cannot always detect
them, posing r isk of an accident!
- Please note that objects not touching the
ground can appear to be further away
than they really are (for example, the
bumper of a parked vehicle, a trailer
hitch, or the rear of a truck). In this case,
you should not use the help lines to help
with parking, which poses danger of an
accident!
.__ _____________ _J ...

184 Intelligent technology
Intelligent technology
Notice about data
recorded by vehicle
control modules
Your veh icle is not equipped with an Event Da­
ta Recorde r (EDR), ins talled by some manu­
facture rs fo r the express p urpose of capturing
data for retrieval after an accident or cras h
event . EDR's are sometimes ca lled "crash re­
corders".
Some state laws restr ict the retr ieval or down­
loading of data stored by EDR's that were in­
stalled in a vehicle for the express purpose of retrieving data after an accident or crash
event without the owner's consent.
A ltho ugh yo ur vehicle is not equ ipped wit h an
EDR, it is equipped with a number of electron­
ic control modules for various vehicle systems
such as, for examp le, eng ine f unction, em is­
sion control, as well as for the airbags and
safety belts.
These electronic contro l modules also record
vehicle-re lated data during norma l vehicle op­
erat ion for diagnostic and repa ir purposes.
The recording capacity of the electronic con­
trol modules is limited to data (no sound is re­
corded) and only a small amount of data is ac­
tually recorded ove r a ve ry limited pe riod of
time and stored when a sys tem faul t or o ther
cond ition is sensed by a cont ro l u nit. Some of
the data then stored may re late to vehicle
speed, direction, braking as we ll as restraint
system use and performance in the event of a
crash or other condit ion. Stored data can only
be read and downloaded w ith special equip­
ment.
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidd ing and loss of ve hicle control. It works
only when the eng ine is running. ESC detects certain difficult driving situat
ions, including
when the vehicle is beginning to spin (yaw)
o ut of control and he lps you to get the veh icle
back under control by se lectively braking the
whee ls, and/or reducing eng ine power and
providing steer ing ass istance to he lp hold the
vehicle o n the dr iver's intended course. The in­
dicator light
G) in the inst rument cluster
blinks when ESC is ta king action to help yo u
control the veh icle.
ESC has limitations.
It is importa nt to remem­
ber that ESC cannot overcome the laws of
physics. It wi ll not always be able to help out
under a ll cond it ions you may come up aga inst.
F or example, ESC may not always be able to
help you master situations where there is a
s u dden change in the coefficient of friction of
the road surface. When there is a section of
dry road that is sudden ly covered w ith water,
s lush or snow, ESC cannot perform the same
way it wou ld on the dry surface . If the ve hicle
hydroplanes (rides on a cushion of water in­
stead of the road surface), ESC will not be
able to help you steer the vehicle because con­
tact with the pavement has been in terrupted
and the vehicle cannot be braked or steered .
D uring fast cornering, particularly on winding
roads, ESC cannot always deal as effectively
with difficult driving situations than at lower
speeds. When towing a trailer, ESC is not able
to help you regain control as it would if you
were not tow ing a trailer.
Always adjust your speed and driving style to road, traffic; and weather condit ions. ESC can­
not override the vehicle's physical limits, in­
crease the availab le tract ion, or keep a ve hicle
on the road if road departure is a result of
drive r inattent io n. Instead, ESC imp roves the
poss ibil ity of keeping the vehi cle under con ­
trol and on the road during ex treme maneu­
vers by using the d river's steering inputs to
help keep the vehicle going in the intended di­
rection . If you are traveling at a speed that
ca uses you to run off the road before ESC can
provide any assistance, you may not experi­
ence the benefits of ESC.

196 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 trai ler, 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 fo llow the operating
and driving instructions provided and use
common sense.
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 veh icle'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 correct
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
trailer hitch ball mount. This prevents the
hitch from causing damage should your vehi­
cle be struck from behind
¢ A.
Trailer brakes
If your tra iler is equipped with a braking sys­
tem, check to be sure that it conforms to a ll
regulations . The trailer
hydraulic brake system must not be
direct ly connected to the vehicle's hydraulic
brake system
~ A.
Safety chains
Always use safety chains between your vehicle
and the trai le r.
Trailer lights
T railer lights must meet all regulations. Be
sure to check w ith 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 vis io n to the rear.
,8. 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 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 limited to a typical
class 1 or class 2 tra iler.
Trailer load distribution Be sure the load in the trailer is held secure ly
in place to prevent it from shifting forward,
backward or sideways.
Never allow a passenger to ride in a trailer
¢ A in Driving instructions on page 197.
Engine cooling system
T owing 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 trai le r, inflate the t ires of your
vehicle to the co ld tire pressure listed under
"Full load" on the label located on the driver's
side B-pillar (vis ible when the door is open).
Inflate trailer tires to trailer and tire manufac­
turers' specifications.
Light s
The headlight settings should be checked with
the trailer attached before driving off. Check
to make sure both vehicle and trai ler lights
are working properly.
Safety chains
Be su re tra iler sa fety 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
chains, make sure they w ill not drag on the
road when you are driving.
The chains shou ld cross under the trai ler
tongue to prevent it from dropping in case of
separatio n from the hitch .
Driving instructions
Driving with a trailer always requires extra
core and consideration.
To obtain the best possible handling o f vehicle
and trai ler, p lease note the following:
.,. Do not tow a loaded trailer whe n your car it­
self is not loaded .
.,. Be especia lly careful when passing other
vehicles .
.,. Observe speed limits .
.,. Do not drive at the maximum permissible
speed .
.,. Always apply brakes ea rly .
.,. Monitor the temperature gauge.
Weight di stribution
Towing a loaded trai ler with an empty car re­
sults in a highly unstable distribution of
weight . If this cannot be avo ided, drive at very
low speeds only to avoid the risk of losing
steer ing control.
Trailer towing 197
A "balanced" rig is easier to operate and con­
trol. This means that the tow vehicle should be loaded to the extent possible and permissi­
ble, while keep ing the trailer as light as possi­
ble under the c ircumstances. Whenever poss i­
ble, transfer some cargo to the luggage com ­
partment of the tow vehicle while observing
tongue load requirements and vehicle loading
considerations.
Speed
The higher the speed, the more d iff icult it be­
comes for the driver to control the rig . Do not
drive at the maximum permissible speed. Re­
duce your speed even more if load, weather or
wind conditions are unfavorable -pa rticularly
when going downhill.
Reduce veh icle speed
immediately if the trail­
er shows the slightest s ign of sway ing .
Do not
try to stop the swaying by accelerating.
Observe speed limits . In some areas, speeds
for vehicles tow ing tra ilers are lower than for
regular vehicles .
Always apply brakes early. When driving downh ill, shift into a lower gear to use the en ­
gine braking effect to slow the vehicle . Use of
the brakes alone can cause them to overheat
and fail.
Coolant temperature
The coolant temperature gauge ¢ page 10
must be observed carefully . 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 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 .
A WARNING
Anyone not properly restrained in a mov ­
ing vehicle is at a much greater risk in an
accident . Never let anyone ride in yo ur car
who is not properly wearing the restraints
prov ided by Audi.
-
•
•

198 Trailer towing
Trailer towing tips
Important to know
Your vehicle hand les different ly when tow ing
a trailer because of the addit ional weight and
different weight distribution . Safety, perform­
ance and economy wi ll greatly depend on how
carefully you load your trailer and operate
your rig.
Before you actually tow your trailer, practice
turning, stopp ing and backing up in an area
away from traffic. Keep practicing until you have become completely familiar with the way
your veh icle-trailer combination behaves and
responds.
Backing up is difficult and requires practice.
Backing up with a trai ler generally requires
steering action opposite to that when backing
up your vehicle without a trailer.
Maintain a greater distance between your ve­
hicle 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 ac­
celerate as fast as you normally would be­
cause of the added load. Make sure you have
enough room to pass . After passing, allow
plenty of room for your tra iler before chang­
in g lanes again.
Avoid jerky starts, sharp turns or rapid lane
changes.
(D Tips
- Do not tow a tra iler dur ing the break-in
period of your vehicle.
- If you tow a trailer, your Audi may re­
quire more frequent maintenance due to
the extra load
q page 2 72.
Parking on a slope
Do not park on a slope with a trailer . If it can­
not be avoided, do so only after doing the fol­ lowing :
When parking:
.. App ly the foot brake.
.. Have someone place chocks under both the
vehicle and the trailer wheels .
.,. With chocks in place, slowly release the
brakes until the wheel chocks absorb the
load.
.. Tur n the wheels towards the curb.
.. App ly the parking b rake.
.. Place an automatic transmission* in P, re­
spectively a manual transmission in first or reverse gear.
When restarting after parking:
.. App ly the foot brake .
.. Start the engine.
.. Move the se lector lever to D/S, respectively
a manual transmission in first gear.
.. Release the parking brake and slow ly pu ll
out and away from the wheel chocks.
.. Stop and have someone retr ieve the wheel
chocks .
(D Tips
If you move the selector lever of the auto­
matic transmission* to P before applying
the parking brake and before blocking the
whee ls, you may have to use more force
lat er to move the lever out of the P posi­
tion.