check engine AUDI S4 2015 User Guide

keys. Unguarded access to the keys pro­
vides children the opportunity to start
the engine and/or activate veh icle sys­
tems such as the power windows etc. Un­ supervised operation of any vehicle sys­
tem by ch ildren can result in serious in­
jury.
- Do not remove the key from the ignition
lock until the vehicle has come to a com­
plete stop. Otherw ise the steering col­
umn lock cou ld suddenly engage -caus­
ing the risk of an accident.
(D Tips
- The operation of the remote contro l key
can be temporarily disrupted by interfer­
ence from transmit ters in the vici nity of
the vehicle working in the same frequen ­
cy range (e .g . a ce ll phone, radio equip­
ment).
- Fo r security reasons, replacement keys
are on ly available from authorized A udi
dealer.
- For Declaration of Compliance to United
States FCC and Industry Canada regula­
tions¢
page 286.
Removing the mechanical key
Fi g. 20 Remote master key: removing the mechanical
key
.,. Press the release button@¢ fig. 20.
.,. Pull the mechan ical key @ out of the master
key.
~ Using the mechanical key, you can:
~ co -lock and unlock* the glove compartment on
rl :5: the passenger's side 9 page 67.
rl l/1 rl
Op enin g an d clos ing 33
- lock and unlock the lockable * rear bench
seat and pass-through*
r=;, page 71.
- activate the child safety locks on the rear
doors
r=;, page 41.
- lock and unlock the vehicle manua lly
r=;, page 3 7 if this should not be possible
with the master key.
- use the ignition key emergency release
r=:> page 34.
Check light and battery in the master
key
Fig . 21 Remote master key: removing the battery hold­
er
Che ck light in the ma ster ke y
The check light @ r=:> fig. 21 in the master key
provides information about different condi­
t ions .
.,. The check light turns on briefly once when a
button is pressed, and during an "inquiry"
by the convenience key system .
.,. If the check light does not come on, the bat­
tery is dead and has to be replaced. In addi­
tion, when the battery is dead the
!I indi­
cator light appears in the instrument cluster
disp lay as well as the message
Plea se
c hange k ey batt ery.
Master key battery replacement
"'Remove the mechan ical key r=;, page 33 .
"' Press the release button @ i=:> fig. 21 on the
battery ho lder and at the same time pull the
bat tery ho lder out o f the maste r key in the
direction of the arrow.
.,. Insta ll the new battery CR 2032 with the
" + " sign facing down .
.,. Push the battery holder carefu lly into the
master key.

82 On the road
On the road
Steering
Manually adjustable steering wheel
The steering wheel position is fully adjustable
up and down and forward and bock .
Fig. 96 Lever under the steering column
First, adjust the driver's seat correctly .
• Pull the lever
c> fig . 96 <=> &_ .
• Move the steer ing whee l to the desired posi­
t ion.
• Push the lever against the steering column
until it locks.
There must be at least 10 inches (25 cm) be­ tween your chest and the center of the steer­
ing wheel. If you cannot sit more than 10 in­
ches (25 cm) from the steering whee l, see if
adaptive equipment is available to help you
reach the pedals and increase the distance
from the steering wheel.
F or detai led information on how to adjust the
driver's seat, see
c> page 62.
A WARNING
Improper use of steeri ng wheel adjust­
ment and improper seating position can
cause serious personal injury.
- Adjust the steering whee l co lumn on ly
when the veh icle is not moving to pre­
vent loss of veh icle control.
- Adjust the driver's seat or steering wheel
so that there is a minimum of 10 inches
(25 cm) between your chest and the
steering wheel
¢ page 127, fig . 139. If
yo u cannot mainta in this min imum dis- tance, the airbag system cannot protect
you proper ly.
- If physical limitations prevent you from
sitting 10 inches (25 cm) or more from
the steering wheel, check with your au­
thorized Audi dealer to see if adaptive
equ ipment is ava ilable .
- If the steer ing wheel is aligned with your
face, the supplementa l driver's a irbag
cannot provide as much protection in an
accident . Always make sure that the
steer ing wheel is aligned with your
chest.
- Always hold the steering wheel w ith your
hands at the 9 o'clock and 3 o'clock posi­
tions to reduce the risk of persona l injury
if the driver's airbag dep loys .
- Never hold the stee ring wheel at the 12
o'clock position or with your hands inside
the steeri ng wheel rim or on the steering
wheel hub . Holding the steering wheel
the wrong way can cause serious injuries
to the hands, arms and head if the driv­
er's airbag deploys.
Ignition lock
Starting engine with the key
Applies to vehicles : w ith ign ition lock
The ignition is switched on and the engine
started with the ignition key .
Fig. 97 Ignit ion key
Sta rting th e engine
• Insert the key into the ignition lock .
• Manual transmission: Fully depress the
clutch pedal and move the shift lever to the
neutra l position .

"" N
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-Do not ride the brakes or press the brake
pedal too often or too long when driving
down a hill. Constant braking causes the
brakes to overheat and substantially re­
duces braking performance, increases
braking distance or causes complete fail­
ure of the brake system.
- To prevent the vehicle from rolling back
when stopping on inclines, always hold it
in place with the brake pedal or parking
brake.
- Never hold the vehicle on an incline with
a slipping clutch. The clutch opens auto­
matically when it becomes too hot from
the overload. An indicator lamp
mJ illu­
minates and a driver message appears
¢ page 99 when the clutch is overload­
ed .
- If the engine must remain running, never
have any driving position engaged when
checking under the hood. Make sure the
selector lever has securely engaged and
is locked in P with the parking brake set
¢ page 212. Otherwise, any increase in
engine speed may set the vehicle in mo­
tion, even with the parking brake ap­ plied .
0 Note
-S tronic- and tiptronic transmission:
When stopping on an incline, do not try
to hold the vehicle in place by pressing
the accelerator pedal while a driving gear
is selected. This can cause the transmis­
sion to overheat and can damage it. Acti­
vate the parking brake or press the brake
pedal to prevent the vehicle from rolling.
- S tronic- and tiptronic transmission: Al­
lowing the vehicle to roll when the en­
gine is stopped and the selector lever is in N will damage the transmission be­
cause it is not lubricated under those cir­
cumstances .
(D Tips
For safety reasons, the parking brake is re­
leased automatically only when the driv ­
er's safety belt is engaged in the buckle.
Transmission 97
Hill descent control
App lies to vehicles : wi th mult itronic/ S tro nic/tiptro nic
The hill descent control system assists the
driver when driving down declines .
Hill descent control is activated when these­
lector lever is in D/S and you press the brake
pedal. The transmission automatically selects
a gear that is suitable for the incline. Hill de­ scent control tries to maintain the speed ach­
ieved at the time of braking, within physical
and technical limitations. It may still be nec­
essary to adjust the speed with the brakes.
Hill descent control switches off once the de­
cline levels out or you press the accelerator
pedal.
On vehicles with the cruise control system*
¢ page 91 , hill descent control is also activat­
ed when the speed is set.
.&_ WARNING
-
Hill descent control cannot overcome
physical limitations, so it may not be able
to maintain a constant speed under all
conditions. Always be ready to apply the brakes .

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,...., ..,., ,....,
Audi adaptive cruise control and braking guard 109
-If you restrict or switch off the ESC, the
braking guard also switches itself off
¢page 187.
- Switch braking guard off when you are
loading the vehicle onto a vehicle carrier,
tra in, ship or other type of transporta­
tion. This can prevent undesired warn­ i ngs from the braking guard system.
Messages
App lies to vehicles: with Audi adaptive cruise co ntrol
Braking guard: Off
This driver message appears if the system is
turned off via the radio/MM!*. Otherwise, if
the system is turned off, the information ap­ pears every time shortly after the start of the
tr ip.
The driver message also appears if the system is not avai lab le due to a malfunction or if the
ESC is not switched on¢
page 187. If this is
the case, the system will not provide warnings
about a possible collision.
Braking guard: Activated
This driver message appears if sharp brake
press ure was applied due to an acute warning.
•••
Three wh ite dots appear if a setting cannot be
selected with the operat ing lever . For exam­
p le , this happens if you want to raise/lower
the speed even though there was no previous­
l y saved speed .
ACC: Deactivation
The driver message appears in vehicles with
manual transmission . If the clutch pedal was
pressed down for too long, the adaptive cruise
control turns off . A chime sounds as a rem ind­
er .
ACC: Sensor blocked
This message appears if the sensor view is ob ­
structed, for example by leaves, snow, heavy
spray or dirt. Clean the sensor¢
page 101,
fig. 113.
ACC: not available
The driver message appears if there is a mal­
function . The adaptive cruise contro l turns off .
A chime sounds as a reminder. Have the sys ­
tem checked by an authori zed Aud i dea ler or
authorized Aud i Service Fac ility.
ACC: unavailable
The driver message appears if, for example,
the brake temperat ure is too high. The adap­
tive cruise control is temporarily unavailable .
A chime sounds as a reminder.
Engine speed!
This driver message appears in vehicles with
manua l transmission if the driver had not up­
shifted or downs hifted in time while using
adaptive cruise control braking or accelerat­
ing, caus ing the vehicle to exceed or no t reach
the permitted limit speed. The adaptive cruise
control turns off. A chime sounds as a remind­
er .
Shift lever position!
Vehicles with an automat ic transmission: the
driver message appears if the selecto r lever is
shifted to the N position. Th e adaptive cruise
control is no t available while in this position.
Vehicles with manua l transm ission: the driver
message appears for vehicles with manual
transmission if there is no forward gear en­
gaged, meaning if the reverse gear or the 1st
gear is engaged or if the selector leve r is in
the neutral position . The adaptive cr uise con­
trol is not available while in th is position.
Stabilization control (ESC)
This message appears if the electronic stabili­
z ation control ( ESC) is taking action to stab i­
lize the vehicle. The adaptive cruise contro l
turns off. A chime sounds as a reminder .
Speed too low
This message appears if the current speed is
too low
to set or to maintain the desired
speed .
The speed be ing saved must be at least
20 mph (30 km/h). The cruise control is
turned off for speeds lower than 12 mph

188 Intelligent technology
allroad: ESC level s
Offroad mode on Offroad mode off
Behavio r
The ESC and ASR stabilization functions The fu ll stabilization f unction of the ESC
are limited ¢& .
Op eration Press the I.a OFFI button .
Indicato r II turns on.
light s
Driver me s- Stabilization control (ESC) : Offroad .
s age s Warning! R est rict ed stabilit y
It is only possib le to turn off the ASR up to 30
mph (SO km/h) for veh icles with front whee l
d rive. At about 45 mph ( 70 km/h) it a utomat i­
cally turns on aga in . It is possib le to turn off
the ASR at any speed for vehicles with all
wheel drive.
A WARNING
You should only switch sport mode/off­
road mode on o r switch ESC/ASR off if your
driving abilities and road cond itions per­
m it .
- The stabilization function is limited
when sport mode/offroad mode is switched on. The d riving wheels could
spin and the vehicle could swerve, espe­
ci ally on s lick o r sli ppery ro ad sur faces.
- all road: You should o nly sw itch off road
mode on when driving offroad.
- Sedan: Th ere is no vehicl e stabiliza tion
w hen ESC/AS R are switched off .
(D Tips
ESC/ASR cannot be sw itched off or sport
mode/offroad mode cannot be switched
on when cru ise control or adapt ive cru ise
contro l* is sw itched on .
Braking
What affec ts braking efficiency?
New brake pads
During the first 250 miles (400 km) , new
b rake pads do not possess their fu ll braking
effect, they have to be "broke n in" first ¢,& .
You can compensate fo r th is sligh tly redu ced and ASR is availab
le agai n.
Press t he
I.a OFF I button aga in.
II turns off.
Stabil izati on c ontrol (ESC ): On
braking powe r by p ushing harder on the bra ke
peda l. Avoi d heavy bra king lo ads dur ing the
break -in pe riod.
Operating conditions and driving habits
T he brakes o n today 's automobiles a re still
s u bject to wear, depe nding largely on ope rat­
i ng condi tions and driving habi ts¢ ,&. On
vehicles that are ei ther dr iven most ly in stop­
and -go city traffic or are dr iven hard, the
brake pads should be checked by your author­
ized Audi dea ler mo re often than specified in
the
Warranty & Maintenance booklet . Failure
to have your brake pads inspected can result in reduced brake performance .
On steep slopes, you sho uld use the braking
effect of the engine . This way, you prevent un ­
necessary wear on the brake system . If you
must use your brakes, do not hold the brakes
down cont inuous ly. Pump the brakes at inter­
vals.
Operating noi se
Noises may occur when braking depending on
the speed, brak ing force and outside cond i­
t ions such as temperature and humidity.
Effect of water and road salt
In certain situations, for examp le afte r driving
t hr ough water, in heavy rain, after overnight
condensation or after wash ing your car, the
braking effect can be reduced by moisture o r
ice on the brake rotors and brake pads. The
brakes must be dr ied first wi th a few ca reful
brake applicat io ns.
At higher speeds and with the windsh ield wip-
ers turned on, the brake pads press against
ll>

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the brake rotors for a short amount of time.
This occurs at regular intervals without the
driver noticing and provides for better brake response time under wet condit ions.
The effectiveness of the brakes can be reduced
when the vehicle is driven on a salt-covered road and the brakes are not used. Likewise,
you clean
off accumulated sa lt coating from
brake discs and pads with a few cautious ap­
plications of the brake
i:> ,& .
Co rrosion
There may be a tendency for dirt to build up
on the brake pads and corrosion to form on
the discs if the car is not dr iven regularly or
only for short trips with little use of the
brakes .
If the brakes are not used frequently, or if cor­ rosion has formed on the discs, it is advisable
to clean
off the pads and discs by brak ing
firmly a few times from a moderately high
speed
i:> ,& .
Fa ult s in the brake system
If you should notice a sudden increase in
brake pedal travel, then one of the two brake
circu its may have failed
i:> ,& .
Low brak e flu id l eve l
Malfunctions can occur in the brake system if
the brake fluid level is too low. The brake fluid
leve l is monitored electronically .
Brake boo ste r
The brake boos ter increases the press ure that
you generate with the brake pedal. It works
only when the engine is running
. ¢ .&
Brake lining w ear statu s
Brake lining wea r may be checked by visual in­
spection of the condi tion of the brake pads
through the openings in the whee l. If neces ­
sary, the whee l may be removed for this in­
spection
c> page 263, Changing a wheel .
Intellig ent technolog y 189
A WARNING
-New brake pads don't have the best stop­
ping power and must be "b roken -in" dur­
ing the initial 100 to 150 miles (150 to
200 kilometers) of normal c ity dr iving .
You can compensate for this by pressing the brake pedal more firmly. This also
applies la ter when new pads are instal­
led.
- You should per form braking m aneuvers
for the purpose of cleaning the brake
system only if road conditions permit .
Other road users must not be p ut at risk -
you may ca use an accident!
- Before descend ing a steep grade, reduce
speed and sh ift transmission into a lower
gea r or lower dr iving range. Do not ride
the brakes or hold the pedal down too
long or too often . Th is could cause the
brakes to get hot and diminish braking
efficiency.
- Do not "ride the brakes" by rest ing your
foot on the pedal when you do not intend
to b rake. This may cause the brakes to
overheat, p remature wear and increased
s topping distance .
- Unde r ce rtain climatic and ope rat ing
conditions such as passing thro ugh wa ­
ter, dr iv ing in heavy rain o r after washing
the vehicle, the effectiveness of the
brakes can be reduced. In winter, ice can
accumu late on the brake pads, linings,
discs and drums. Carefully app ly brakes
for a test. Brakes w ill dry and ice coat­
ings w ill be cleaned
off after a few care­
fu l brake applicat ions .
- Driving for an extended period of time o n
salt-cove red roads without using your
brakes can a lso affect braking efficiency .
C lean
off accum ulated salt coa ting from
br ak e disc s and pad s wi th a few ca re ful
bra ke applications.
- If you damage the front spoiler, or if yo u
install a diffe rent spoiler, be s ure the ai r
f low to the front brakes is not obstruct­
ed . Otherw ise the bra ke system could •
•

194 Driving and en vironm ent
8_ WARNING
After driving through water, mud, 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 wate r.
@ Tips
- Check the depth of the water 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 hr ough water .
- Keep in mind that oncoming vehicles
may c reate waves that raise the water
l evel and make it too deep fo r you r vehi­
cle to dr ive through safely.
-
- Avoid dr iving thro ugh salt water because
i t can ca use corrosion.
Catalytic converter
It is very important that your emission con­
trol system (catalytic conv ert er) is function ­
ing properly to ensure that your vehicle is run­
ning in on env ironm entally sound manner.
,,. Always use lead-free gaso line Q page 207,
Fuel supply .
,,. Never run the tank down a ll th e way to emp ­
ty.
,,. Never put too much moto r oil in your engine
Q page 216, ~ Adding engine oil .
,,. Never try to push -or tow -start your ve hicle .
T he cata lytic converter is an eff ic ient "clean­
up" device built in to the exhaust system of
the vehicle . The catalytic converter burns
many of the polluta nts in the exhaust gas be ­
fore they are released into the atmosphe re . The exclus
ive use of unleaded f uel is critica lly
important for the life of the catalytic conv ert­
er and p roper funct ion ing of the eng ine .
A WARNING
=
-The temperature of the exhaust system
is high, both when driving and after stop­
p ing the eng ine .
- Never touch the exhaust tail pipes once
they have become hot. This could result
in burns.
- Do not park or operate the vehicle i n
areas where the hot exhaust system may
come in co ntact with dry grass, brush,
fue l spill or other material wh ich can
cause a fire .
- Do not app ly additional undercoating or
r u stp roofing on or nea r the exhaust
manifold, exhaust pipes, cataly tic con­
ver ter or he at s hields. Dur ing driv ing, the
substance used fo r undercoating could
overheat and cause a fire.
CI) Note
- Be aware tha t just o ne tank filling with
leaded fu el w ill alre ady ser io usly de ­
grade the performance of the cata lytic
converter .
- Do not exceed the cor rect engine oil level
Q poge 216.
-Do not drive until the fuel t ank becomes
comple tely empty . The engine cou ld mis ­
fire . Unburned fuel could also get into
the exhaust system and th is co uld cause
the catalytic converter to overheat.
- Do not turn off the ignition while the ve­
hicle is mov ing.
- Do not contin ue to ope rate your veh icle
under these conditions, as otherwise fuel
can reach the catalyt ic converter. Th is
co uld result in overheating of the con­
verter, requir ing its replacement.
- To assure efficient operation of the Emis -
sion Control System: .,..

196 Driving and en vironm ent
Reducing unnecessary idling
Even when your car is just idling it burns up
fuel .
.,. Shut the engine off when you are not dr iving
the vehicle.
.,. 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 ra il­
road crossings, or at traff ic lights that have
l ong wa its on red . Turning the engine
off fo r
just 30-40 seconds saves more fue l than is
burned starting the eng ine again .
It takes a long time for the engine to warm up
fu lly when it is running at idle . Howeve r, wear
and nox ious em issions 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 shou ld 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 .
... Have your vehicle serviced at regular inter-
vals.
By having your vehicle regularly serviced by an
authorized Audi dealer he lps 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
fu el
con sumpt ion .
Check you r oil ea ch time you fill you r ta nk.
The amount o f oi l used is re lated to engine
load and speed.
It i s normal fo r the oil consump tion of a new
engine to reach its lowest value after a certa in
mileage has been d riven.
You must drive your veh icle about 3,000 m iles
(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 Wa rranty
& Main­
t enance boo klet . Lack of p roper ma inte­
nance as well as improper use of the ve­
hicle will impair the function of the
emission contro l system and cou ld 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 sh ie lds, switches, ignition w ires,
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 .
.,. Try to avoid dr iv ing short distances w ith a
cold engine .
T he engine and cata lytic converter have to
reach their opt imal
operat ing temperature to
reduce fuel consumpt ion and nox ious emis­
s ions effectively .
Just after starting, a co ld eng ine in a mid-s ize
car only achieves a fuel economy of 6-8 mi les
per gallon (30-40 l/100 km). After about a
half a mile, fuel economy cl imbs to 12 mpg
(20 l/100 km) . After about
2 .5 miles (4 km), ll>

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Trailer towing Driving with a trailer
General information
Your Audi was designed primarily for passen­
ger transportation .
If you plan to tow a tra iler, p lease remember
that the addit ional load will affect durab ility,
economy and performance .
T railer towing not on ly places more stress on
the vehicle, it also calls for more concentra­
tion from the driver.
F or this reason, a lways fo llow the operating
and driving instructions provided and use
common sense.
Technical requirements
Traile r hitch
Use a weight-carrying hitch conforming to the
gross trailer we ight. The hitch must be suita­
b le for your veh icle and trailer and must be
mounted secure ly on t he veh icle's chassis at a
technically sound location . Use only a t railer
h itch w ith a removab le ball moun t. A lways
check with the tr ailer hitch man ufac tur er to
make sure that you are using the correct
hitch.
Do not use a bumper hitch.
T he hitc h must be installed in such a way that
it does not inte rfe re with the impac t-absorb­
i ng b umper syst em. No modifica tions should
be made to the vehicle exhaus t and b rake sys­
tems . From t ime to time, check that a ll hitch
mo unt ing bolt s remain securely fas tened.
W hen you are not tow ing a trailer, remove the
trai le r hi tch ball moun t. T h is prevents the
hi tch from causing damage sho uld your ve hi­
cle be str uck from be hind
¢ &. .
Trailer brakes
If yo ur tra iler is equ ipped w it h a braking sys­
tem, check to be su re that it conforms to a ll
r eg ulat io ns .
Trailer towin g 199
The trailer hyd ra ulic bra ke system must not be
direct ly connected to the vehicle's hydraulic
brake system
¢ &. .
Safety chains
Alw ays use s afety chains between your ve hicle
and t he tra ile r.
Trailer lights
Tra ile r lights m ust meet all reg ulations . Be
su re to check w ith your authorized Audi dealer
fo r c orrec t w iri ng, sw itches, and relays.
Mirrors
If you a re unable to see the traffic behind you
u sing the regula r outside m irrors, then you
must insta ll ext ended mir ro rs. It is important
t h at you
always have clea r vis io n to the rear .
.8, WARNING
- If a trai ler has elec trica l br ake s plea se
no te th at t hese bra kes are not activat ed
by the fa ctory -fit ted control unit -risk of
accident!
- After removing the t railer hi tch, do no t
s to re it in yo ur vehicle . In case of sudden
brak ing, the hitch could fly fo rward and
in ju re you or yo ur passenge rs .
Operating instructions
Maximum traile r we ight
-
A trai ler fo r you r vehicle is limited to a typical
class 1 or class 2 tra iler.
Trailer load distribution
B e sure the lo ad in the tra iler is h eld secure ly
i n p lace to p reven t it from shifting fo rward,
backward or sideways.
Never allow a passenger to ride in a trailer
¢ &. in Driving instru ctions on page 200.
Engine cooling system
T owing a t railer ma kes t he engine wor k hard ­
er . It is impo rta nt that the cooling system's
perfo rman ce is up to the additional load.
Make sure tha t the coo ling sys tem h as enough
f lu id . .,..
•
•

200 Trailer towing
Tire pressure
When towing a trai le r, inflate the tir es of your
vehicle to the cold tire pressure listed under
"Full load" on the label located on the driver 's
side B-pillar (visible when the door is open).
Inflate trailer tires to trailer and tire manufac ­
turers' specifications.
Lights
The headlight settings should be checked with
the trailer attached before dr iving off. Check
to make sure both vehicle and tra iler lights
are working properly.
Safety chains
Be sure trailer safe ty cha ins are properly con­
nected from the trailer to the hitch on the ve­
hicle. Leave eno ugh slack in the chains to per ­
mit turning corners. When you install safety
cha ins, 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
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 trai ler, p lease note the following:
.,. Do not tow a loaded trailer when 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 early.
.,. Monitor the temperature gauge.
Weight distribution
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
steering control. A "ba
lanced" rig is easier to operate and con­
tro l. This means that the tow vehicle should
be loaded to the extent possible and permissi­
ble, while keep ing the trai ler as light as possi­
ble under the c ircumstances. Whenever poss i­
ble, transfer some cargo to the luggage com ­
partment of the tow veh icle while obse rving
tongue load requi rements and vehicle load ing
considerations.
Speed
The higher the speed, the more d iff icu lt 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
whe n 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 c> page 10
must be observed carefully . If the needle
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 •
i n the i nstrument cluster starts flashing, pull
off the road, stop and let the engine
idle for
abo ut two minutes to prevent heat build-up .
_& WARNING
Anyone not properly 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 p roper ly wea ring the restraints
provided by Audi.
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