232 Intelligent technology
can result in there being insufficient energy
avai lab le to start the engine .
I ntell igent energy management in your vehi
cle handles the distribution of electrical ener
gy . Starting abi lity is markedly improved and
the life of the battery is extended .
Basically , energy management consists of
battery diagnosis , idling current manage
ment
and dynamic energy management.
Battery diagnosis
Battery diagnosis continuously determines
the state of the battery. Sensors determine
battery volta ge, battery current and battery
temperature. This determines the current
state of charge and the power of the battery.
Idling current management
Idling current management reduces energy
consumption while the vehicle is stand ing.
With the ignition switched off, it contro ls the
energy supply to the various e lectrica l compo
nents. Data from battery diagnosis is consid
ered.
Depending on the battery's state of charge,
individua l consumers are gradually turned off
to prevent excessive discharge of the battery
and thus maintain starting capability.
Dynamic energy management
While the vehicle is being dr iven , dynamic en
e rg y management distributes the energy gen
erated according to the needs of the individu
a l components. It regulates consumption, so
that more ele ctrical energy is not being used
than is being generated and ensures an opti mal state of cha rge for the battery.
{D) Tips
- But even energy management cannot
negate the limits of physics. Consider
that the power and life of a battery are
limited .
- If starting ab ility is threatened, you are
i nformed by a warn ing
c> page 233,
Driver notification in the instrument
cluster display .
What you should know
The highest priority is given to maintaining
starting capability .
The battery is seve rely taxed in shor t-distance
driving, in city tra ffic and dur ing the cold time
of year . Abundant electrical energy is re
quired, but only a little is generated . It is also
critical if the engine is not running and e lectri
ca l components are turned on . In this in
stance energy is being consumed but none is
being generated.
It i s in precisely these situations that you will
notice energy management actively regulat
ing the distribution of energy.
Vehicle stands for an extended period
If you do not drive your vehicle over a period
of several days or weeks , e lectr ica l compo
nents are gradually cut back or sw itched off.
T his reduces energy consumption and main
ta ins start ing capability over a longer period .
Take into consideration that when you unlock
your vehicle , some conven ience functions ,
s uc h as the inte rior lights or the power seat
adjustment, may not be available. The con
venience functions will be available again
when you turn on the ignition and start the e ngine .
With the engine turned off
If you listen to the radio, for example, w ith
the engine turned off or use other MMI func
tions, the battery is being discharged .
If starting capability is jeopardized due to en
ergy consumption , the following warning ap
pears in the MMI display:
Please start engine, otherwise system will
switch off in 3 minutes .
The warning indicates that the system will be
turned off automatically after 3 minutes . If
you w ish to continue using the funct ions, you
have to sta rt the eng ine.
1111>
With the engine running
Although electrical energy is generated when
the vehicle is being driven, the battery can be
come discharged. This happens most ly when
litt le energy is being generated and a great
deal consumed and the battery's state of
charge is not optimal.
To bring the energy balance back into equili
brium, consumers which require especia lly
large amounts of energy are temporarily cut
back or switched off. Heating systems in par
ticular requ ire a great deal of energy. If you
notice, for example, that the heated seats* or
the heated rear window are not heating, they h ave been temporar ily cut back or switched
off. These systems will be available again as
soon as the energy ba lance has been restored.
You will also notice that engine idle speed has
been increased slightly. This is normal and not
a cause for concern . By increasing engine idle
speed the additional energy required is gener
ated and the battery is charged .
Driver notification in the instrument
cluster display
If battery power drops into the range where it
can limit the ab ility of the engine to start, th is
is shown in the instrument cluster display
with the following driver message:
(•) Low battery charge: battery will be
charged while driving
This notification reminds you that the starting
capability of the engine may be limited. As
soon as you start driving again, the battery
will be recharged and the notification will go
out.
Driver notification appears and goes out
again
If th is driver notification appears after the ig
nition is turned on or while driving and it goes
out again after a wh ile, the battery has been
adequately recharged.
Intelligent technology 233
Driver notification appears and does not
go out again
If this driver notification appears after the ig
nition is turned on or whi le driving and does
not go out again, the battery's state of charge
is not in the optimal range. Starting ab ility is
restricted . Have the battery checked as soon
as possible by an authorized Aud i dealer or
qualified workshop.
•
•
236 Driving and en vir onm ent
- Do not a pply an under body p rotec tant in
the exhaust system area or a fire co uld
start.
Avoid damaging the
vehicle
When you are driving on poor roads, or over
curbs, steep ramps, etc., make certain that l ow-lying pa rts such as spoi lers and exhaust
system parts do not bo ttom out and get dam
aged.
This is especially true fo r vehicles with low
slung chassis (sports chassis)* and fully load
ed ve hicles .
Operate your vehicle
economically and
minimize pollution
General
Your personal style of driving will determine
the economy of your vehicle, as well as ex
haust and noise levels.
F ue l economy, envi ronmental impact, and
wear on you r engine, br akes and t ires large ly
depend on th ree factors:
- you r persona l dr iv ing sty le
- operating conditions
- technical lim itations
I f you anticipate what you need to do next and
d rive economically, you can easi ly cut your
fuel consumption by 10 -15 percent. This sec
tion will give you some t ips on how you can
he lp the environment and your pocketbook .
(D Tips
The consumption estimates as published
by ENVIRONMENTAL PROTECTION AGENCY
(EPA) and Transport Canada may not corre
spond to your actual consumption on the road, wh ich will vary depe nding upon vehi
cle load and speed, road and weather con
ditions, tr ip length, etc.
Drive smoothly and keep a lookout
ahead
Vehicles use the most fuel when they are ac
celerating.
.,. Avo id u nnecessary accelerating and bra king.
Vehicles use the most fuel when they are ac ce lerat ing . If you ant icipate what is going to
happen next, you will need to brake less and,
thus, acce le rate less. Let the vehicle coast
whenever possible - for examp le when you see
t h at the next t raff ic light is red.
Avoid full throttle
Driving at moderate speeds saves fuel and
improves your mileage.
.,. Try and keep well below your car 's maxi -
mum speed .
Acce lerat ing gently reduces fue l cons ump
t ion, eng ine wear, and does not disturb the
environment.
Fuel consumpt ion, exhaust emissions and e n
gine noise increase disproportionately at high
speeds. If you drive at approximately three
quarte rs of top speed, fuel consumption w ill
be reduced by one ha lf. Never drive faster
t h an the pos ted speed limit and weathe r con
di tions pe rm it.
Reducing unnecessary idling
E ven when your car is just idling it burns up
fuel.
.,. Shut the eng ine off when you are not d riv
ing the v ehicl e .
.,. Do not wa rm up t he veh icle by le tti ng the
eng ine run a t idle.
It makes sense to shut off the engine in traffic
jams, when wa it ing fo r tra ins to pass at rail
road c rossings, o r at traffi c lights that have
l ong wai ts on red. T urning the eng ine
off f or
just 30 -40 seconds saves more f uel than is
burned start ing t he engine again .
IJII>
It takes a long time for the engine to warm up
fu lly when it is running at idle. However , 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 should come
on to indicate improper operation, they
wou ld go unheeded. Extended idling also
p roduces heat, which cou ld resu lt i n 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 serv iced at regular inter-
vals.
By having your vehicle regularly serviced by an
author ized Audi dealer helps to ensure that it
r uns p roper ly and economically. The condition
of your vehicle not only affects its safety and
ab ility to hold its value, it also affects
fuel
c on sumption.
Ch eck your oil each time you fill your tank .
The amount of oil used is related to engine
load and speed .
It is normal for the oil consumption of a new
engine to reach its lowest v alue after a certain
mileage has been dr iven .
You must drive your vehicle about 3,000 miles (5,000 ki lometers) before you can properly
assess o il consumption .
This a lso applies to fuel consumption and en
gin e output.
0 Note
- Have yo ur vehicle maintained properly
and in accordance wit h the service rec
ommendations in your War ranty
& Main-
Dri vin g and en vironm ent 237
tenance book let. Lack of p roper mainte
nance as well as improper use of the ve
hicle will impair the function of the
em ission contro l system and could lead
to damage.
- Do not alter or remove any component of the Emission Control System unless approved by the manufacturer.
- Do not alter or remove any device, such as heat shie lds, switches, ign ition w ires,
valves, which are designed to protect
your vehicle's Emission Control System and other impo rtant vehicle compo
nents.
Fewer short trips
Fuel consumption will always be relatively
high on short trips .
"' Try to avoid driv ing short distances w ith a
cold engine .
The eng ine and cataly tic converter have to
reach their opt imal
operat ing temperature t o
reduce fuel consumpt ion and nox ious em is
s ions effect ively .
Just after starting, a co ld eng ine in a mid-s iz e
car only achieves a fuel economy of 6-8 mi les
per gallon (30 -40 l/l00km). After about a
half a mile , fuel economy cl imbs to 12 mpg
(20 l/100 km) . After about
2.5 miles (4 km),
t he engine is at i ts p rope r opera ting tempe ra
tu re and f uel economy has reached a normal
l evel. So you can see that yo u should avo id
short trips whenever possible.
T he
out sid e t emperature is also cr itica l in th is
regard. Your car consumes more fue l in the
winter than in the s ummer.
•
•
Trailer towing Driving with a trailer
General information
Your Audi was designed primarily for passen
ger transportation .
If you plan to tow a trailer, please remember
that the additional load will affect durability,
economy and performance .
Trailer towing not only places more stress on
the vehicle, it also calls for more concentra
tion from the driver.
For this reason, always follow the operating
and driving instructions provided and use
common sense.
(D Note
If you are going to tow a trailer, you must
activate the trailer operation mode
q page 159, Towing a trailer.
Technical requirements
Trailer hitch
Use a weight-carrying hitch conforming to the
gross trailer weight. The hitch must be suita ble for your vehicle and trailer and must be
mounted securely on the vehicle's chassis at a
technically sound location. Use only a trailer
hitch with a removable ball mount. Always
check with the trailer hitch manufacturer to
make sure that you are using the 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~.&.
Trailer towing 241
Trailer brakes
If your trailer is equipped with a braking sys
tem, check to be sure that it conforms to all
regulations.
The trailer hydraulic brake system must not be
directly connected to the vehicle's hydraulic
brake system
q .& .
Safety chains
Always use safety chains between your vehicle
and the trailer.
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 important
that you always have clear vision to the rear.
_&. WARNING
-If a trailer has electrical brakes please
note that these brakes are not activated
by the factory-fitted control unit -risk of
accident!
- 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.
- Never install a "weight distributing" or
"load equalizing" trailer hitch on your ve
hicle. The vehicle was not designed for
these kinds of trailer hitches. The hitch
attachment can fail, causing the trailer
to tear loose from the vehicle.
- The Gross Vehicle Weight Rating for your
vehicle, found on the safety compliance
label on the driver's side B-pillar, must
never be exceeded under any circumstan
ces. Exceeding the Gross Vehicle Weight
Rating of your vehicle is likely to damage
your vehicle, and such damage will not
be covered by your Limited New Vehicle
-
Warranty. Exceeding the Gross Vehicle ~
•
•
242 Trailer towing
Weight Rating will also change the per
formance and handling characterist ics of
your vehicle, which could cause a crash result ing in serious injury or death .
- The Gross Vehicle Weight Rat ing for your
vehicle would be exceeded if your vehicle
is simultaneously equipped with Panor
am ic sliding sunroof; th ird-row seating;
t railer towing equipment (factory or
dealer-installed) , and running boards
(deale r-installed) . UNDER NO CIRCUM
STANCES MAY ALL SUCH ITEMS BE IN
STALLED ON THE SAME VEHICLE.
Operating instructions
MAX 6.9"
MAX175mm
E
Ill E Ill ... Q) m
Fig. 233 Permi tted ba ll pos it ion of t he t ra iler h itc h
Trailer towing weights
With a factory-installed trailer hitch, the
maximum permissible trailer weight is 6,615
l bs (3,000 kg) . Th e maximum permissible un
braked trailer weight is 1,650 lbs (750 kg).
With an
aftermarket trailer hitch, the maxi
m um permissible trailer weight is 5,512 lbs
(2,500 kg) . These specifications apply when
driving on roads having an incline of less than
12%.
Permissible tongue load
F or best vehicle handling under these
changed condit ions, adjust the trailer load so
that the tongue load is at the maximum al
lowable or slightly lower . You can get an ap
prox imation of the tongue load w ith a bath
room scale or you can measure the load at a
trucking company or weighing station .
With a
factory-installed trailer hitch, the
maximum permissible load on the ball h itch may not exceed 662 lbs
(300 kg). With an
af
termarket
trailer hitch, the maximum permis
s ib le load on the ba ll hitch may not exceed
551 lbs (250 kg). It is recommended to use
the maximum permissible load.
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
¢&. in Driving instructions on page 243.
Ball mount
The trailer hitch may only be used w ith suita
ble ball mount and ball¢
fig. 233. In stalla
tion of the hitch ball must be carried out in ac
cordance with the manufac turer's instruc
tions. At the height dimension of 1.5 in
(38.5 mm) a tolerance of +/- 0.5 in (12. 7 mm)
is permissib le.
Engine cooling system
Towing a trailer makes the engine work ha rd
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 trailer, infla te the tires of your
vehicle to the cold tire pressu re listed under
" Full l oad" on the tire pressure label. The tire
pressure label is located on the driver's side B
pillar . Inflate trailer tires to trailer and tire
manufacturers' spec ificat ions .
Lights
The headlight settings shou ld be checked with
the trai ler attached before driving
off. Check
to make sure both vehicle and trailer lights
are working properly.
Safety chains
Be sure trailer safety chains are properly con
nected from the trai ler to the h itch on the ve
hicle. Leave enough slack in the chains to per
mit turning corners. When you install safety
IJ,,
chains, make sure they will not drag on the
road when you are driving.
The cha ins shou ld cross under the trai le r
tongue to prevent it from dropping in case of
separation from the hitch.
(D Note
If you are going to tow a trailer, you must
activate the trailer operation mode
¢page 159, Towing a trailer.
Driving instructions
Driving with a trailer always requires extra
core and consideration.
To obtain the best poss ible handling of vehicle
and traile r, p lease note the following:
.,. Do not tow a loaded tra iler whe n your car it
self is not loaded.
.,. Be especially careful when passing other
vehicles .
.. Observe speed limits.
.. Do not d rive at the maximum permissible
speed.
.. Always apply brakes early.
.. Monitor the temperature gauge.
Weight distribution
Tow ing a loaded trai ler with an empty ca r re
sults in a high ly unstable distribution of
weight. If this cannot be avoided, drive at very
l ow speeds only to avoid the risk of losing
steering control.
A "balanced" rig is easier to operate and con
trol. This means that the tow vehicle should
be loaded to the extent possible and permiss i
ble, while keeping the trailer as light as possi
ble under the circumstances. Whenever possi
ble, transfer some cargo to the luggage com
partment of the tow vehicle wh ile observing
tongue load requirements and vehicle loading
considerations .
Speed
The higher the speed, the more difficult it be
comes for the driver to control the rig . Do not
drive at the maximum permissible speed. Re-
Trailer towing 243
duce your speed even more if load, weather or
wind conditions are unfavorable - particularly
when going downhill.
Red uce veh icle speed
immediately if the trail
er shows the slightest sign of sway ing.
Do not
try to stop the swaying by accelerating.
Observe speed limits. In some areas, speeds
f or vehicles towing trailers are lower than for
regular vehicles.
Always apply brakes early. When driving
downh ill, shift into a lowe r 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 your car
who is not properly wearing the restraints
prov ided by Audi .
Trailer towing tips
Important to know
-
Your vehicle handles differently when towing
a trai ler because of the additional weight and
different weight distr ibution. Safety, perform
ance and economy will great ly depend on how
carefully you load your trailer and operate
your rig.
Before you actua lly tow your tra iler, practice
turning, stopping and backing up in an area
away from traffic. Keep practicing until you
•
•
Cleaning and protect ion
General information
Regular core preserves vehicle value.
Any automobile is exposed to industrial
fumes , corrosive road salt, etc. A well cared
for Audi can look like new many years after purchase . Regu lar and correct care w ill con
tr ibute to maintaining the beauty and value of
your Aud i.
F u rth ermor e, good c are may be a conditi on
for subs tantiati ng a w arrant y claim sho uld
c orrosion d amag e or paint d efects oc cur.
Your authorized Audi dealer has a variety of
dedic ated veh icle-car e products and can ad
vise which ones to use for cleaning the exter i
or and interior of your vehicle.
Whether you use products recommended by
Aud i or other commercially available clean ing
agents, please make sure you apply them cor
rectly .
.&, WARNING
-Cleaning agents may be poisonous. Keep
them out of the reach of children.
- Heed all caut ion labels.
- Always read directions on the container
before using any product. Follow the di
rect ions carefu lly.
- Most chemical cleaners are concentrated
and have to be diluted .
- Use spot removing fluids only in well
ventilated areas.
- Do not use gasoline, kerosene, d iesel
fuel, nail polish remover or other volatile
fluids. They may be toxic, flammab le or
haza rdous in other ways. Do not wash,
wax or dry the vehicle with the ign it ion
on or the engine running .
- Do not clean the undersides of chassis,
fenders, wheel covers, e tc. w ithout pro
tecting your hands and arms. You may c u t yourself on sharp -edged metal parts .
Cleaning and protec tion 245
- Moisture and ice on brakes may impair
brak ing effic iency¢
page 228, General
information.
Test the brakes carefully
each time you wash the vehicle.
@) For the sake of the environment
Select on ly environmentally friend ly clean
i ng products . Leftover cleaning products
should not d isposed of in the household
waste.
Care of exterior
Washing
Frequent washing protects the vehicle .
The best protection against environmental i n
fluences is
frequent washing and waxing . How
often t his is required depends on:
- How much the veh icle is used
- Where the veh icle is parked (garage, in the
open under trees, etc.)
- The seasona l and weather conditions
- Environmental infl uences
T he longer b ird droppings, insects, tree resin,
road and indus tria l gr ime, ta r, soot, road salt
and other materials remain on the vehicle body, the more lasting their destructive ef
fects wi ll be . High temperatures caused by ex
posure to intense sun light intens ify the corro
s ive effect, particularly when humid ity is high
as well.
Under certain circumstances,
weekl y washing
may be necessary. Under other cond itions, a
monthly washing and waxing may be ade
quate .
After the winter, the underside of the vehicle
should be thoroughly washed, preferab ly in a
professional car wash .
.&, WARNING ,_
A lways read and heed all WARNINGS and
other information ¢
page 245.
•
•