light AUDI A5 COUPE 2013 Owners Manual

178 Child Safety
though an adult were on the seat and de­ploy the Advanced Airbag when it must
be suppressed causing serious or even
fatal injury to the child .
- Make sure that the
PASSENGER AIR BAG
OFF
light comes on and stays on all the
time whenever the ignition is switched
on.
- If the
PASSENGER AIR BAG OFF light
does not come on and stay on, immedi­
ately install the rearward-facing child
safety seat in a rear seating position and
have the airbag system inspected by your
authorized Audi dealer.
Activating the convertible locking retractor
Use the convertible locking retractor to se­
cure a child restraint.
Always heed the child safety seat manufactur­
er's instructions when installing a child re­
straint in your vehicle. To activate the conver­
tible locking retractor:
"" Place the child restraint on a seat, prefera­
bly on the rear seat.
"" Slowly pull the belt
all the way out.
"" Route it around or through the child re­
straint belt path¢&_ .
"" Push the child safety seat down with your
full weight to get the safety belt really tight.
"" Insert the belt tongue into the buckle for
that seating position.
"" Guide the safety belt back into the retractor
until the belt lies flat and snug on the child
safety seat.
"" You should hear a "clicking" noise as the
belt winds back into the inertia reel. Test the
convertible locking retractor by pulling on
the belt. You should no longer be able to
pull the belt out of the retractor. The con­
vertible locking retractor is now activated.
"" Make sure that the red release button is fac ­
ing away from the child restraint so that it
can be unbuckled quickly .
"" Pull on the belt to make sure the safety belt
is properly tight and fastened so that the seat cannot move forward or sideways more
than one inch (2.5 cm).
A WARNING ....__ -
Using the wrong child restraint or an im­
properly installed child restraint can cause
serious personal injury or death in a crash.
- Always make sure that the safety belt re- tractor is locked when installing a child
safety seat. An unlocked safety belt re­
tractor cannot hold the child safety seat
in place during normal driving or in a
crash.
- Always buckle the child safety seat firmly
in place even if a child is not sitting in it.
A loose child safety seat can fly around
during a sudden stop or in a crash.
- Always make sure the seat backrest to
which the child restraint is installed is in
an upright position and securely latched
into place and cannot fold forward. Oth­
erwise, the seatback with the child safety
seat attached to it could fly forward in
the event of an accident or other emer­
gency situation.
- Always read and heed all WARNINGS whenever using a child restrained in ave­
hicle is being used ¢
page 166. Special
precautions apply when installing a child
safety seat on the front passenger seat
¢ page 143, Child restraints on the front
seat -some important things to know.
Deactivating the convertible locking
retractor
The convertible locking retractor for child re­
straints will be deactivated automatically when the belt is wound all the way back into
the retractor.
"" Press the red button on the safety belt
buckle. The belt tongue will pop out of the
buckle.
"" Guide the safety belt all the way back into
its stowed position .
Always let the safety belt retract completely
into its stowed position. The safety belt can
1J1-

-Never attach a tether strap to a tie-down
hook in the luggage compartment.
- Never use child restraint tether ancho­
rages to secure safety belts or other
kinds of occupant restraints .
- Never secure or attach any luggage or
other items to the LATCH lower ancho­
rages or to the tether anchors.
- If a tether or other strap is used to at­
tach a child restraint to the front passen­
ger seat, make sure that it is not so
tight, that it causes the weight-sensing
mat to measure mo re weight than is ac­
tually on the seat .
- The heav ier weight reg istered can make
the Advanced Airbag System work as
though an adult were on the seat and de­ ploy the Adva nced Airbag when it must
be s uppressed causing serious or even
f a tal inj ury to the child .
-If you mus t install a rearward facing
child safety seat on the front passenger
seat because of exceptional circumstan­
ces and the
PASSENGER AIR BAG OFF
light does not come on and stay on, im­
mediately install the rear-facing child
safety seat in a rear seating position a nd
have t he a irbag system inspected by you r
Audi dealer.
Installing the upper tether strap on the
anchorage
F ig. 160 Tether strap: proper routing and mounting
Inst alling the tether strap
.. Release or deploy the tether strap on the
child restra int according to the child re­
stra int manufacturer's instructions.
Child S afety 183
.. Guide the upper tether strap und er the rear
head restraint
¢ fig. 160 (raise the head re ­
straint if necessary).
.. Tilt the recess flap up to expose the anchor
bracket.
.. Attach the tether strap anchorage hook into
the opening of t he tether anchorage .
.. Pull on the tether strap hook so that the
spr ing catch of the hook engages .
.. Tighten the te ther s trap firmly fo llow ing
t he child restra int manufac turer's inst ruc­
tions .
Releasing the tether strap
.. Loosen the tension follow ing the child re­
s traint manufacture r's instr uctions.
.. Depress the spring c atch on the hook and
re lease it from the ancho rage.
(D Note
If you leave the c hild restra int w ith the
tethe r strap fi rmly ins talle d for several
days, this could leave a mark on the up­
ho lstery on the seat cushion and backrest
i n the area where the tether strap was in­
stalled. The upholstery would also be per­
manently stretched around the tether
strap . This applies espec ia lly to leather
seats .
Using tether straps on rearward-facing
child restraints
Curre ntly, few rearward-facing child restraint
systems come w ith a tether . P lease read and
heed the chi ld restraint system manufactur ­
er's instr uctions carefully to determine how to
properly install the tether.
A WARNING
-
A child in a rearward-fac ing ch ild safety
seat installed on the front passenger seat
will be ser ious ly injured and can be killed if
the front airbag inflates -even with an Ad­
vanced A irbag Sy stem .
- The inflating airbag will h it the ch ild
safety sea t or i nfan t carrie r wi th great
for ce a nd will smas h the child safety se at .,.

184 Child Saf ety
and child against the backrest, ce nter
arm rest, or door .
- A tight tether or other strap on a rear­
ward -fac ing child restra int attached to
the front passenger seat can put too much pressure on the weight-mat in the
seat and register a heavier weight in the
Adva nced Airbag System. The heav ier
we ight registe red can make th e system
wor k as th ough an adu lt were on the seat
and dep loy the Advan ced Airbag when i t
must be suppressed ca using se rious or
even fatal injury to the child.
- If you mus t install a rearwar d fa cing
child safety seat on the front passenger
seat because of exceptional circ umstan­
ces and the
PASSENGER AIR BAG OFF
light does not come on and stay on, im­
med iate ly install the rearward-facing
child safety seat in a rear seat ing pos i­
t io n and have the airbag system inspect­
ed by you r authorized Audi dea le r.
Additional Information
Sources of information about child
restraints and their use
There are a number of sources of additional
information about ch ild restrai nt select ion, in ­
stallat io n and use:
NHTSA advises that the best child safety seat
is the one that fits your child and fits in your
ve hicle, and that you w ill use cor rectly and
consistently.
Try before you buy!
U.S National Highway Traffic Safety Admin­
istration
Te l.: 1-888-327-4236 (TTY : 1-800-424-9153)
www .nhtsa.gov
National SAFE KIDS Campaign
Te l.: (202) 662-0600
www .safekids.org
Safety BeltSafe U.S.A
T el.: (800) 74S-SAFE (English)
Tel.: (800) 747 -SANO (Span is h)
www.carseat .org
Transport Canada Information Centre
T el.: 1-800-333-0371 or ca ll
1-6 13-998-86 16 if yo u are in the Ottawa area
http://www .tc.gc.ca/eng/roadsafety/
menu. htm
Audi Cu stomer Relations
Tel.: (800) 822-2834

Intelligent technology Notice about data
recorded by vehicle
control modules
Your vehicle is not equipped with an Event Da­
ta Recorder (EDR), installed by some manu­
facturers for the express purpose of capturing
data for retrieval after an accident or crash
event. EDR's are sometimes called "crash re­
corders".
Some state laws restrict 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.
Although your vehicle is not equipped with an
EDR, it is equipped with a number of electron­
ic control modules for various vehicle systems
such as, for examp le, engine function, emis­
sion control, as well as for the airbags and
safety belts.
These electronic control modules also record
vehicle-related data during norma l vehicle op­
eration for diagnostic and repair 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 over a very limited period of
time and stored when a system fault or other
condition is sensed by a control unit. Some of
the data then stored may relate to vehicle
speed, direction, braking as we ll as restraint
system use and performance in the event of a
crash or other condition. Stored data can only be read and downloaded with special equip­
ment.
Electronic Stabilization
Control (ESC)
Description
ESC helps to improve road holding and vehicle
dynamics to help reduce the probability of
skidding and loss of veh icle control. It works
only when the engine is running. ESC detects
Intelligent technology 185
certain difficult driving situations, including
when the vehicle is beginning to spin (yaw)
out of control and helps you to get the veh icle
back under control by se lectively braking the
wheels, and/or reducing engine power and
providing steering ass istance to help hold the
vehicle on the driver's intended course. The in­
dicator light
JjJ in the instrument cluster
blinks when ESC is taking action to help you
control the vehicle.
ESC has limitations .
It is important to remem­
ber that ESC cannot overcome the laws of
physics.
It will not always be able to help out
under all conditions you may come up against.
For example, ESC may not always be able to
help you master situations where there is a
sudden change in the coefficient of friction of
the road surface. When there is a section of dry road that is suddenly covered with water,
slush or snow, ESC cannot perform the same
way it would on the dry surface. If the vehicle
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 interrupted
and the vehicle cannot be braked or steered .
During 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.
A lways adjust your speed and driving style to
road, traffic; and weather conditions. ESC can­
not override the vehicle's physical limits, in­
crease the available traction, or keep a vehicle
on the road if road departure is a result of
driver inattention. Instead, ESC improves the
poss ibility of keeping the vehicle under con­
trol and on the road dur ing extreme maneu­
vers by using the driver's steering inputs to
help keep the vehicle going in the intended di­
rection. If you are traveling at a speed that
causes you to run off the road before ESC can
provide any assistance, you may not experi­
ence the benefits of ESC.
•
•

-Always acce lerate with specia l care on
even, smooth surfaces s uch as those that
are wet or covered with ice and snow.
The drive wheels can spin even with
these assistance systems that cannot al­
ways help to reduce the risk of loss of ve­ hicle control.
(0 Tips
- ABS and ASR on ly work correctly when
all four wheels are equ ipped w ith ident i­
ca l tires. Different tire s izes can lead to a
reduct ion i n eng ine power.
- You may hear noises when the systems
described are wo rking .
- If the indicator light D] or m!S (USA
models) ;tiJ (Canada models) appears,
the re may be a malfunct ion
c::> page 19,
~ page 19.
Switching on/off
ESC turns on automatically when you start
the engine .
Fig . 161 Vers ion A: low er c en ter co nsol e, fj. OFF bu t­
to n
Fig. 162 Ve rsio n B: upper ce nte r console,~ OFF bu t­
to n
Intelligen t technolog y 187
Turning off ASR
In some sit uatio ns, it may be useful to switch
ASR
off to a llow the wheels to spin . For exam­
ple:
- Rocking the vehicle to free it when i t is st uck
- Dr iving in deep snow or on loose ground
- Dr iving with snow chains
Qu ick ly press the
I~ O FF I button c::> fig. 161
and c::> fig . 162. The Ii indicator light turns on
and the message
Trac tion control (A SR) : Off.
War ning! R estrict ed stability
appears in the
display .
It i s only possible to turn
off the ASR up to
30 mph (SO km/h) for vehicles wi th front
wheel drive . At about 45 mph (70 km/h) it au ­
tomat ically turns on again .
It is possible to
turn
off the ASR at any speed fo r vehicles with
all wheel drive .
Turning off ESC
Press and hold the I;; OFFI button for three
seconds . The
fl ESC indicator light turns on
and the message
Stabil ization cont rol (ESC ):
o ff . Warni ng ! Re str icted stab ilit y
appea rs in
the d isplay. ASR is also sw itched
off when ESC
i s sw itched off.
Switching on
Press the j ;; O FFI button again . The fi indica­
tor light t urns on and the message
St abi liz a­
t ion control (ESC ): On
appears in the disp lay.
_&. WARNING
- Drive whee ls can sp in and you can lose
contro l of the vehicle more eas ily when
ASR and ESC are switched off, especia lly
when the road is s lippery .
- Switch ASR/ESC
off only when yo ur driv ­
ing skills, traffic and weather conditions
permit.
@ Tips
You cannot sw itch ASR and ESC off when
adaptive cruise control* is working .
-

188 Intelligent technology
Braking
What affects 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 "broken in" first¢.&. .
You can compensate for this slightly reduced braking power by push ing harder on the brake
pedal. Avoid heavy braking loads during the
break-in per iod.
Operating condition s and d riv ing hab it s
The brakes on today's automob iles are st ill
subject to wea r, depending largely on operat­
ing conditions and driving habits¢.&. . On
vehicles that are e ither driven mostly in stop­
and-go city traffic or are driven hard, the b rake pads should be checked by your author­
ized Audi dealer more often than specified in
the
Warranty & Maint enan ce booklet . Failure
to have your b rake pads inspected can res ult
in red uced brake pe rformance.
On steep slopes, you shou ld use the brak ing
effect of the engine. This way, you p revent un­
necessa ry wear on the brake system. If yo u
must use yo ur brakes, do not hol d the brakes
down continuously. P ump the brakes at inter ­
va ls.
Operating noise
Noises may occur when braking depending on
the speed, brak ing fo rce and outside condi­
tions such as temperature and humidity.
Effect of water and road salt
In ce rtain situat ions, for example after driving
through water , in heavy ra in, after overn ight
conde nsation or afte r washing your car, the
b rak ing effect can be redu ced by mois ture or
ice on the brake rotors and brake pads . The
brakes must be dried first with a few careful
brake applications .
A t higher speeds and with the w indshield w ip­
ers turned on, the brake pads press against
the brake rotors for a short amount of time .
This occurs at regular intervals witho ut the driver noticing and p
rovides fo r bette r brake
response time under wet conditions .
T he effec tiveness of the brakes can be red uced
when the vehicle is d riven on a sa lt -covered
r oad and the brakes are not used . Likewise,
you clean off accumulated salt coating from brake d iscs and pads with a few cautio us ap­
plicat ions of the brake ¢ .&. .
Corro sio n
The re may be a tendency for di rt to b uild up
on the brake pads and corrosion to form on
the discs if the car is not driven regularly or only fo r short trips w ith litt le use of the
brakes.
If the brakes are not used frequently, o r if cor ­
rosion has formed on the discs, it is advisable
to clean off the pads and d iscs by braking
firmly a few times from a moderately high
speed ¢.&. .
Fault s in the brak e syst e m
If you s hou ld notice a sudden increase i n
brake pedal trave l, then one of the two brake
c ircuits may have failed ¢.&. .
Low brake fluid level
Malfunctions can occ ur in the b ra ke system if
the brake fluid level is too low. The brake fluid
l evel is monitored electronica lly.
Brake booster
T he bra ke booster inc reases the pressure that
you generate wi th the b rake peda l. It works
o n ly when the engine is runn ing .¢ .&.
Brake lining wear status
Brake lining wear may be checked by visual in­
spect ion of the condition of the brake pads
th rough the ope nings in the wheel. If neces­
sary, the wheel may be removed for t his in­
spect ion ¢
page 253, Changing a wheel.
_& WARNING ,____
-New b rake pads don't have the best stop­
p ing power and m ust be "broken-in" dur-
ing the initial 100 to 150 miles (150 to
11>-

200 kilometers) of normal city driving.
You can compensate for this by press ing
the brake pedal more firm ly. This also
applies later when new pads are instal­
led .
- You should perform brak ing maneuvers
for the purpose of clean ing the brake
system only if road cond it ions permit.
Other road users must not be put at r isk -
you may cause an acc ident!
- Before descending a steep grade, reduce
speed and shift transmiss ion into a lowe r
gear or lowe r driving range. Do not ride
the brakes or hold the pedal down too long or too often . This cou ld cause the
brakes to get hot and diminish braking
efficiency.
- Do not "ride the brakes" by resting your
foot on the pedal when yo u do not intend
to brake. Th is may cause the brakes to
overheat, premature wear and increased
stopp ing distance.
- Under certain climat ic and operating
condit ions such as passing through wa­
ter, driving in heavy rain or after wash ing
the vehicle, the effect iveness of the
brakes can be reduced. In winter, ice ca n
a ccumulate on the brake pads, linings,
dis cs and d rums. Carefully apply brakes
f or a test . Brakes will dry and ice coat­
ings will be cleaned off after a few ca re ­
ful brake applications.
- Driv ing fo r an ex tended period of time on
salt-covered roads without using your
brakes can also affect braking efficiency.
Clean off accumulated salt coating from
brake discs and pads w ith a few caref ul
brake applicat ions.
- If you damage the front spoiler, or if you install a different spoiler, be sure the air
flow to the front brakes is not obstruct­
ed . Otherwise the brake system co uld
overheat reducing the effectiveness of
t h e ent ire brake system.
- Failur e of one bra ke c ircuit will impair
t h e braking capability resulting in an in­
cr eased stop ping distan ce. Avoid driv ing
the vehicle and have it towed to t he near-
Int ellig ent technolog y 189
est a uthorized Audi dea ler or q ualified
workshop.
- Never let the ve hicle roll to a stop with
the engine shut off.
- If the brake booster is not working, for
examp le when towing you r vehicle, or
because the brake booster has somehow
been damaged, the bra ke pedal must be
pressed considerably harder to make up
for the lack of booster assistance .
Electro-mechanical
power assist, dynamic
steering
The electro-mechanical power assist helps
the driver when steering.
Power steer ing adapts electronically based on
the ve hicle speed .
Indicator lights and messages
• Steering d efective! Do not driv e vehi cle!
If this indicato r light tur ns on and stays on
and t his message appears, the power steer ing
may have failed .
Do
not continue dr iv ing . See your author ized
Audi dealer or other qualified repair facility
fo r ass istance.
':r,y Dy namic steer ing: System fault! You can
continue driving
If the indicator light turns on and the mes­
sage appears, the steering may be more diffi­
cu lt to move or more sensit ive tha n usual. The
steering wheel may a lso be at an ang le when
dr iv ing straight .
Drive slowly to your a uthorized Audi dea ler or
qualified workshop to have the ma lf u nction
corrected .
'Taj Dynamic steering: init ializing
If this drive r message appears and t he in dica ­
tor light is flashing on the instrumen t panel,
dynamic steering * is being rei nitialized. Once
you start the engine afte r this is finished, the .,..
•
•

190 Intelligent technology
steering wheel will be easy to move. Re­
initia lization might be necessary if the steer­
ing whee l was moved hard to the left and
right while the vehicle was not moving. The
d isplay goes out as soon as in itia lizat ion is
comp lete.
A WARNING
Have the dynamic steering* system ma l­
function repaired as soon as poss ible by an
authori zed A udi dealer or any qualified
workshop -risk of accident!
- If the . or
l:r-ij indicator light on ly stays
on for a short t ime, yo u may continue
drivi ng.
- The dynamic steering * stability systems
are not available in the event of a system
malfunction.
- Fo r additional informat ion on dynamic
stee ring*, refer to ¢
page 109.
Driving with your
quattro ®
Applies to vehicles: with all-wheel drive
With all-wheel drive, all four wheels are driv­
en.
General information
W ith all-whee l drive, power is distribute d to
a ll fo ur whee ls. This happens automat ica lly
d epending on your dr iving sty le and the road
conditions at the t ime. See also¢
page 185 .
A cen ter different ial d istr ib ut es the dr iv ing
power var iably to the front and rear axle. It
wo rks together with se lective whee l torque
control, which activates when driving throug h
curves ¢
page 186. With the sport differen ­
tial*, power distribution to the rear wheels is
variable and can be adjusted with Audi drive se lect ¢
page 109 .
The all-wheel drive concept is designed for
h igh engine power . Your vehicle is exception­
ally powerful and has exce llent dr iving charac ­
terist ics bot h under normal driving conditions and on snow and
ice . Always read and follow
safety precautio ns ¢ &. .
Winter tires
When driving in t he win ter, yo ur vehicle wi th
all-wheel d rive h as an adv antage, eve n w it h
r egular tires. In wi nte r road conditions it may
be advisable to mount winter tires (or all -sea ­
son tires) for improved driveability and brak­
i ng : these tires must be mounted on
all fou r
wheels . See also ¢ page 246, Winter tires.
Tire chains
Where tire chains are mandatory on certain
roads, this no rma lly also app lies to ve hicles
with all-wheel drive¢
page 247, Snow
chains .
Replacing wheels/tires
Vehicles wi th a ll-wheel drive m ust always
have ti res of t he same s ize. A lso avoi d tires
with differe nt t read depths . For detai ls see
page ¢
page 242, New tires and replacing
tires and wheels.
Off-Road dr iving?
You r A ud i does no t have e nough gro und clea r­
ance to be used as an off -road vehicle .
It is
t h e refore best to avoid roug h tracks and u n­
even te rrain as much as possib le . Also refer to
¢ page 193.
A WARNING
Always ad just your dr iv ing to road and traf­
f ic conditions. Do not let the extra safety
afforded by all-wheel drive tempt you into
taking ext ra risks .
-Al though the a ll-wheel drive is ve ry ef­
fective, always remember that braking capacity is lim ited by tire t raction. You
s hould t herefore no t drive at ex cessive
speeds on i cy or slippe ry road surfa ces.
- On wet road surfa ces, be careful not to
d rive too fast because the fr on t whee ls
could begin to slide on top of the water
(aquaplaning) . If thi s should occur, you

will have no warning from a sudden in­
crease in engine speed as with a front­
wheel drive vehicle. A lways drive at
speeds wh ich are suited to the road con­
ditions -risk of crash .
Energy management
Starting ability is optimized
Energy management controls the distribution
of electrical energy and thus optimizes the
availability of electrical energy for starting
the engine.
If a vehicle with a conventional energy system
i s not driven for a long period of time, the bat­
tery is discharged by idling current consumers
(e.g. immobilizer) . In certain circumstances it
can result in there being insufficient energy
avai lab le to start the engine.
I ntelligen t energy management in your vehi­
cle handles the distribution of electrical ener­
gy . Starting ability is marked ly improved and
the life of the battery is extended .
Basically, energy management consists o f
battery diagnosis, idling current manage­
ment
and dynamic energy management.
Battery diagnosis
Batt ery d iagnosis continuously dete rmines
the state of the battery. Sensors determine
battery voltage, battery current and battery
temperature. This determines the current
state of charge and the power of the battery.
Idling current management
I dling 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 electrica l compo­
nents . Data from battery diagnosis is consid­
ered.
Depending on the battery's state of charge,
individual consumers are gradually turned off
to prevent excessive discharge of the battery
and thus mainta in start ing capability.
Intelligent technology 191
Dynamic energy management
While the vehicle is being driven, dynamic en­
ergy management distrib utes the energy gen ­
erated according to the needs of the individ u­
al components. It regulates consumption, so
that more e lectrical energy is not being used
than is being generated and ensures an opti­
mal state of charge fo r the battery .
{!) Tips
- But even energy management cannot
negate the limits of physics. Consider
that the power and life of a battery are
limited .
- If start ing ability is threatened, the indi­
cator light(•] appears¢
page 17.
What you should know
The highest priority is given to maintaining
starting capability.
The battery is severe ly taxed in short-distance
driv ing, in city traff ic and during the cold time
of year. Abundant electrical energy is re­
quired, but on ly a little is generated . It is also
c rit ical if the engine is not running and electri­
ca l components are turned on. In this in­
stance ene rgy is be ing consumed but none is
being generated .
It is in precisely these situations that you will
notice energy management actively regulat­
in g 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, electr ical compo ­
nents are gradually cut back or switched off .
T h is reduces energy consumption and main­
tains starting capability over a longer period .
Some of the convenience functions may not
operate, such as the interior lights or the
power seat adjustment. The convenience
functions will be available again when you
switch on the ignition and start the engine.
•
•

192 Intelligent technology
With the engine turned off
If you listen to the radio, for example, with
the engine turned off or use othe r MMI func­
tions, the battery is being discharged .
If sta rting capability is jeopa rdized due to en­
e rgy consumpt ion, the fo llowing warning ap­
pears in the MMI display:
Please start the engine soon or the system
will be turned off.
The warning ind icates that the system will be
turned off automatically after 3 minutes.
If
you wish to continue using the functions, you
have to start the engine.
With the engine running
Although electrical energy is generated when
the vehicle is be ing driven, the battery can be­
come discharged . This happens most ly when
l ittle energy is be ing generated a nd a great
deal consumed and the battery's state of
cha rge is not optimal.
To br ing the energy balance back into equili­
b rium, consumers which require especially
la rge amounts of energy are tempo rarily cut
back or switched off. Heating sys tems in par­
ticular requi re a great dea l of energy . If you
notice, for example , that the heated seats* or
the heated rear window are not heating, they
have been temporar ily cut back or switched
off. These systems will be ava ilable again as
soon as the energy ba lance has been restored.
You will a lso notice that engine idle speed has
been increased slightly. This is norma l and not
a cause for concern . By increasing engine idle
speed the add itional energy required is gener­
ated and the batte ry is charged.