display AUDI A5 COUPE 2011 Repair Manual

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Sensors in the bumper
Sensors are located in the rear bumpers . If these detect a n obsta cle,
audib le and visual sig nals wa rn you. The range at w hich the sensors
beg in to measure is approximately:
T o the sid e
2 ft (0. 60 m)
Center rear 5 .2 ft (1.60 m)
Distan ce warning when reversing s tarts w hen an obsta cle is detec ted
in the range of the parking ass ist system. As the d ista nce decreases,
t he time in te rval between the audib le tones becomes shorter .
When the dis tance is less tha n 1ft
(0.30 m), the tone becomes
cont inuo us. At th is point yo u should stop back ing up.
If the dis tance to an obs tacle stays the s am e, t he volume o f the
distance signal chime is grad ually reduced after about
4 seconds
(does not affe ct the conti nuous signal tone) . App roac hing an oth er
obs tacle w ill cause the distance sig nal to sound aga in at t he normal
vol ume.
Rear view camera coverage area
Th e MM I display s hows the area covere d by the rea r view c amera
=>
page 160, fig. 15 5 G). Objects that a re not in the area covered @
are not s hown on the MMI dis play .
W e recommend that you prac tice parking w ith th e rear v iew camera
in a traff ic-free location o r parking lot to become fam iliar with the
system, the or ientat ion lines, a nd their functi on . W hen doing this,
there should be good light and weathe r cond itions.
I n the MMI di spla y, obje cts o r ve hicl es appea r closer or fu rt h er aw ay
if:
• you are dr iv ing in reverse gea r from a level sur face onto an incline,
or a dow nwar d slop e,
• you are drivin g in reverse gear toward protrud ing ob jects,
• t he vehicle is ca rry ing too much load in the rear.
T he accuracy of the orientat ion lines and blue s urfaces d imin ishes if :
Controls and equip ­
ment Safety first
• t
he rear view camera does not provide a re liable image , fo r
ex am ple, in po or visib ility co ndi tion s or if the lens is dir ty,
• the image on the screen is not visible due to sun g la re and reflec­
t io n.
Caring for the rear view camera lens
The re ar view came ra is locat ed above the r ear license pla te br acket .
For the pa rking ass ist to operate, the lens =>
page 160, fig. 156 m ust
be ke pt clean:
• Dampen the lens wi th a household alcoho l-based glass cleaner,
and clean the lens wi th a d ry cloth => 0.
• Remove snow with a hand br us h and ice preferab ly w it h a de- icing
sp ray =>0.
& WARNING
• The parking aid cannot replace the driver's attention. The
driver alone is responsible for parking and similar driving maneu •
vers.
• Always keep your eyes on the vehicle 's surroundings, using the
rear view mirror as well.
• Do not allow yourself to be distracted from traffic by the rear
view camera pictures.
• If the position and the installation angle of the camera has
changed, for example, after a rear end collision, do not continue
to use the system for safety reasons. Have it checked by a qualified dealership .
0 Note
• Low obstacles a lready s ignaled by a wa rning can disapp ea r from
the system's detection range as they are approached and will not
co ntinu e to be signaled. O bje cts such a s barrier c hains , trailer draw
bars, thin painted vertical po les or fences may not be detected by the
sys te m , pos ing r isk of d amage. _..
Vehicle care Technical data

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• Never use warm or hot water to remove snow or ice from the
camera lens -danger of crack fo rmation on the lens!
• When cleaning the lens, never use products that are abrasive. •
App lies to veh icles : wi th par kin g syst em (re ar, wi th rea r vi ew cam era)
Switching on/off
The rear view camera switches on automatically together
with the acoustic park assist when you put the vehicle in
reverse.
Switching on
- Put the vehicle in reverse gear, the acoustic parking
system with rear view camera is activa ted automatically .
Activation of the acoustic parking system is confirmed by
a brief acknowledgement sound.
Switching off
-Drive faster than 6 mph (10 km/h), or
- take the vehicle out of reverse gear. The acoustic parking
system is immediately deactivated, and the rear view
camera picture is deact ivated automatically after a period
of about 15 seconds, or
- switch off the ignition.
T he delay in deactivating the camera provides an uninterrupted view
behind the vehicle espec ially when maneuver ing in tight parking
spaces and prevents the picture from tu rning off the every time you
shift out of reverse .
If the warning message appears in the display but not the rear view
came ra pict ure, read and confi rm the warning message . T he acoustic
distance s ignal is always active. If
you press a function button on the MMI control console, the rear
view came ra pictu re disappears. The rear view camera pict ure reap­
pears the next time you park .
Further information on the warning message and the MMI control
conso le can be found in the MMI instruction booklet.
[I] Tips
• The rear view came ra pi cture is avai lable as soon as the MM I
Display or the MMI is switched on, or the start-up phase is completed.
• Keep the sensors in the rear bumper and the rear view came ra lens
clean and free of snow and ice, so that the parking system can work
properly . P lease follow the additional notes on~
page 165. •
Applies to veh icles: wit h park ing system (rear, wit h rear view camera )
Reverse Parking
Parking mode l can be used when parking in a garage or
parking space .
Fig.157 M MI Disp lay :
Aimi ng a t a park ing
s p ot .,,,

___________________________________________________ P_ a _ r_k :...:.; a..::s ...:s...: i..::s ...:t _ ___,J_
Fig. 158 MMI D isplay:
Ali gning the vehicl e
-Switch the MMI on and se lect the reverse gear .
- Turn the steering wheel until the orange orientation lines
(D appear in the parking spot=> page 162 , fig. 157. Use
the markings @to help you estimate the distance from an
obstac le. Each marking corresponds to 3 ft (1 m) . The
b lue ar ea represents an extension of the vehicle's outline
by approximately 16
ft (5 m) to the rear .
- While driving in reverse gear, adjust the steering wheel ang le to fit the parking space with the aid of the orange
orientation lines =>
0. ® marks the rear bumper . You
should stop driving in reverse as soon as and no la ter than
when the red orientation line© abuts an object=>& !
& WARNING
• The rear view came ra does not show the enti re area beh ind the
v ehicle =>
page 160, fig. 155. Watch out e spe cially fo r s mall chil ·
dren and animal s. The rear v iew cam era cannot alwa ys dete ct
them , posing ri sk of an accident!
• Plea se note that obje ct s not tou ching the groun d can appear to
be further awa y than th ey reall y are (for example , th e bum per of
a parked vehi cle, a trailer hit ch , or the r ear of a truck) . In thi s case ,
Con tro ls a nd e quip ·
m en t Vehicle
OP-eration
& WARNING (con tin ued)
you sh o uld not use the help lin es to help with p arking , whic h
po se s dang er of an accident!
0 Note
• Low obstacles a lready signaled by a wa rning c an disappear from
the sys tem's de te ct ion range as they are app roached and will no t
conti nue to be signaled . Objects such as barrier cha ins, trailer draw
bars, thin painted ve rtical poles or fences may not be detected by the
system , posing risk of damage.
• In the MMI display , the direc tion o f travel o f the vehicle rear is
represen ted depend ing on the steering whee l angle. The vehicle front
swings out more than the veh icle rear . Maintain plenty of distance
from an obstacle so that your outside mirror or a corner of your
vehicle does not collide with any obstacles -danger of accident !•
Ap plie s to veh icle s: with pa rk ing syst e m (r ea r, wi th rear vie w cam era)
Parallel P arking
Use parking mode 2 to help you park on the edge of a
street.
Vehicle care
Fig. 159 MMI Di spl ay :
blue surface In the
p arking s pot
~
Do-it-yourselt service iTechnical data

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Fig.160 MMI Display:
Blue curve on the curb
The following steps apply 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 MMI on and select the reverse gear. The
parking aid turns on and parking mode 1 appea rs 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 => page 163, fig. 159 (D control button
on the MMI control console. Parking mode 2 appears.
- Back up in reverse gear and align your vehicle so that the
blue area ® borders on the rear end of the vehicle or on
the parking spot line. The blue area represents an exten­
sion of the vehicle's outline by approximately 16 ft (5 m)
to the rear. The long side of the blue area should be on the
curb. The entire blue area must fit into the parking spot.
- While the vehicle is stationary, turn the steering wheel to
the right as far as it will go. -
Back into the parking spot until the blue curve touches the
curb ::::> fig. 160. Stop the vehicle.
- While 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 later
than when the red orientation 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. Position the long side of
the blue a rea so that the re is sufficient space from the curb. The area
must not be on the curb. You will also need to start turning the
steering wheel much earlier. There should be a sufficient amount of
space between the curb and the blue curve, and the blue curve
=> fig . 160 must not touch the curb .
& WARNING
• The rear view camera does not show the entire area behind the
vehicle => page
160, fig. 155. Watch out especially for small chil­
dren and animals. 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 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! _,,,

Park assist IIJII _________________________________ _____;.....:;_;_.:..:,____;;_ ____ _
0 Note
In the MMI display, the d irect ion of t ravel of the vehicle rear is rep re­
sented depend ing on the steering wheel angle. The vehicle front
swi ngs ou t mo re t han t he ve hicle re ar. M ain tain ple nty of dist ance
from an obstacle so t hat your outs ide mirror or a corner of your
vehicle d oes no t collide with any o bstacles - dange r of accide nt!
[ i ) Tips
Th e left or right or ientat ion lines and s urfaces will be displ aye d,
depending on the tu rn signal being used. •
App lies to veh icles : with park ing syst em (rear, wit h rea r view cam era)
Adjusting the display and warning tones
The display and warning tones are adjusted in the radio
or fv1fv1 I*.
-Select : [CAR]> Parking system.
Display
• Off -
when the parking system is switched off, only aud ible sig nals
are given.
• On -when the pa rking system is switc hed on, the pic ture from the
rea r view camera is displayed.
Warning tones
• Rear volume -rear sensor vo lume
• Rear frequency -rear sensor frequency
• In-car entertainment fader -when the par kin g sys tem i s sw itched
on, the volume of the active audio source is lowered.
T he newly a djusted value is br iefly hear d from the signal generator .
T he settings are automatica lly stored and assigned to the remote
cont rol key.
Controls and equip ­
ment Safety first
& WARNING
•
Always make sure that the volume and frequency of the
warning tones i s adju sted so that you can easily hear the acou stic
distance signal even if the radio is playing , the air-conditioner
blower is on High or there is a high level of outside noise.
• Check the settings whenever someone else has driven the
vehicle before you.
[I] Tips
• Th e warning tones can also be ad justed directly from the rea r view
camera image . Simply p ress the
[Settings I* cont rol b utton .
• C han ged settings are a ctivat ed w hen parking assist is switched on
again .•
A pplies to v ehicl es: w ith park ing syst em (r e a r, wi th re ar view cam era)
Error messages
If a warni ng tone is aud ible fo r about five se conds when yo u turn on
the ignition, the re is a ma lfunction in t he system. Have the prob lem
co rrected by yo ur a utho rized Audi dea ler .
K eep the se nsors in the rear b umper clean and free from i ce s o th at
the acoustic pa rk assist system can function p roper ly .•
Vehicle care Technical data

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defined in the electronic contro l unit~ page 202, "PASSE NGER
AI RB AG OF F ligh t".
Always remember, a c hild safety seat or infa nt ca rr ie r i nstalled on th e
front seat may be str uck and k noc ked out of position by the ra pidly
in flating p assenge r's ai rbag in a frontal coll is io n. T he a irbag could
great ly reduce the effect iveness of the c hild restraint and even seri ­
o us ly i njur e the chi ld dur ing inflation.
For this reason, and because t he back seat is the safest place for chil­
dren -whe n properly restrained according to their age an d size -we
st rong ly recommend t hat childre n always sit in the back seat
~ page 21 5, "C hild Safety" .
& WARNING
A child in a rearward-facing child safety seat installed on the front
passenger seat will be ser iously injured and can be killed if the
front airbag inflates - even with an Advanced Airbag System .
• The inflat ing airbag w ill hit the child safety seat or infant
carrier with great force and will smash the child safety seat and
child against the backrest, center armrest, door or roof .
• Always install rear-facing child safety seats on the rear seat .
• If you must install a rearward facing child safety seat on the
front passenger seat because of exceptional circumstances and
the PASSENGER AIR BAG OFF light does not come on and stay on,
immediately install the rear-facing child safety seat in a rear
seating position and have the airbag system inspected by your
authorized Audi dealer.
• Forward-facing child safety seats installed on the front
pa ssenger 's seat may interfere with the deployment of the airbag
and cause ser ious personal injury to the child.
& WARNING
If , in exceptional circumstances , you must install a forward-facing
c hild restraint on the front passenger's seat:
Controls and equip­ ment Safety first Vehicle operation
& WARNING
(co ntinued )
• Always make sure the forward-facing seat has been designed
and certified by its manufacturer for use on a front seat with a
passenger front and side airbag.
• Never put the forward-facing child restraint up against or very
near the instrument panel.
• Always move the passenger seat into its rearmost position in
the seat's fore and aft adjustment range, as far away from the
airbag as possible before installing the forward-facing child
restraint. The backrest must be ad justed to an upright position.
• Make sure that the PASSENGER AIR BAG OFF light comes on
and stays on all the time whenever the ignition is switched on.
& WARNING
To reduce the risk of serious injury, make sure that the
PASSENGER AIR BAG OFF light will be displayed whenever a child
re straint is installed on the front passenger seat and the ignition
is switched on.
• If the PASSENGER AIR BAG OFF light does not stay on, perform
the checks described~
page 201, "Monitoring the Advanced
Airbag System ".
• Take the child restra int off the front passenger seat and install
it properly at one of the rear seat positions if the PASSENGER AIR BAG OFF light does not stay on .
• Have the airbag system inspected by your authorized Audi
dealer immediately.
• Always carefully follow instructions from child restraint manu­
facturers when installing child restraints .
& WARNING
If, in exceptional circumstances , you must install a forward or
rearward-facing child restraint on the front passenger's seat :
Vehicle care Do-it-yourself service Technical data

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the weight-sensing mat to measure more weig ht t han is act ua lly on
t he sea t.
If the PASSENGER AIRBAG OFF light still does not come on and
does not stay on cont in uou sly (when the ignition is sw itched on),
• t ake the child re st raint o ff the fr ont pa ssenge r seat and in stall i t
prope rly at one of t he rear seat pos itions. Have t he a irbag system
i n sp ec ted by y ou r au thorized A udi dea ler im medi ately.
• move the child to a rear seat posit io n and make sure that the child
is prop erly restra ined in a chi ld restr aint t hat is a ppropr iate f or its
size and age.
Th e
PASSENGER AIRBAG OFF light s ho uld NO T come on when the
ign ition is on and an adult is sitt ing in a proper seating pos it io n on the
front passenger seat . If t he
PASSENGER AIRBAG OFF light comes on
and stays on or flashes for abou t 5 seco nds w hile driving, under these
circumstances, make sure that:
• t he adult on t he fr on t p asse nger sea t is prope rly se ate d on the
center of the seat cushion with his or her back up against the backrest
and the bac krest is not recline d => page 172, "Proper occupant
seating posit ions",
• t he adult is n ot tak ing weig ht off t he se at by h olding on to t he
passenger assist handle above the fro nt passenger doo r or
s u pp orting their weight on the armrest,
• the safety belt is be ing properly worn and t hat there is not a lot of
s la ck in t he safe ty be lt webb ing ,
• accessory seat cove rs or cushions o r othe r th ings that may cause
an in cor rect re adin g or impress io n o n the weight -sen sing m at under
the upholstery of the seat have been removed from the front
pas senge r sea t,
• a safety be lt extender has not been left in the safety belt latch fo r
t he fr ont p asse n ge r se at.
In addition to the
PASSENGER AIRBAG OFF lig ht i n the center of the
instrument pa nel, the message
PASSENGER AIRBAG OFF or
PASSENGER AIRBAG ON w ill br ie fly ap pear in t he instr ument cluster
Controls and equip­
ment Safety first Vehicle operation
display. This
is to inform the dr iver of the current front passenger
a ir bag s tatus. •
Important safety instructions on
monitoring the Advanced Airbag System
& WARNING
An airbag system that is not functioning properly cannot provide
supplemental protection in a frontal crash.
• If the airbag indicator light comes on, it means that there may
be something wrong with the Advanced Airbag System. It is possible that the airbag will inflate when it is not supposed to, or
will not inflate when it should .
• Have the airbag system inspected immediately by your autho­
rized Audi dealer.
& WARNING
If the front airbag inflates, a child without a child restraint, in a
rearward-facing child safety seat or in a forward-facing child
restraint that has not been properly installed will be seriously
injured and can be killed .
• Even though your vehicle i s equipped with an Advanced Airbag
System, make certain that all children, especially 12 years and
younger , always ride on the back seat properly restrained for their
age and size .
• Always install forward or rear-facing child safety seats on the
rear seat -even with an Advanced Airbag System.
• If you must install a rearward-facing child safety seat on the
front passenger seat because of e xceptional circumstances and
the PASSENGER AIR BAG OFF light does not appear and stay on, immediately install the rear-facing child safety seat in a rear ..,
Vehicle care Do-it-yourself service Technical data

Intelligent technology
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The system operates across the entire speed range in combination
w ith the ABS sys tem. If the A nti-L o ck Brak e System (A BS) mal fun c­
tions, the ESP will also shut down.
How the system works
The Anti-Lock Brake System (ABS), Elect ronic D ifferential Lock (EDL)
and the Anti-Slip Regul ation System (AS R) are in teg rated in the e lec ­
tronic stab ilizat ion program . In addition to the data prov ided by
th ese fun ctions, the ESP control unit re quires addi tional meas ure ­
ment data provided by hig h pe rformance senso rs . The ro tat ional
speed of the vehicle about its vertical axis, veh icle acceleration in the
fore-and-a ft and lateral d irect ions, the brake pressure , a nd the
steerin g ang le are all measured .
Th e d irec tion in whi ch the driver w ishes to tra ve l is d ete rm ined wi th
the a id of the steering a ngle and ve hicle speed and is con tinually
c omp ared wi th the a ctu al b ehavior o f the ve hicl e. If t he two do no t
match, for example, when the vehicle starts hydroplani ng on a wet
roa d, E SP w ill automatica lly bra ke the approp riate whee l to correct
the problem.
Th e ve hicle is t hen stab ilized by the fo rces acting on the whee l during
bra king .
If the ve hicl e is oversteering (the vehicle tu rns too s harp ly
and the rear whee ls slide toward the outside of a curve), the brakes
a re mainly a pplied on the whee l tha t is o n the o uts ide of t he curve. In
the case of a vehicle that is
understeering (the vehicle does not turn
shar ply enough and push es out o f a curve), the b rakes are ap plied as
needed on the whee l th at is on the inside of the curve or additionally
on the ot her wheels . An acoustic s ignal indicates w hen ESP bra ke
applica tion cuts in=> &.
T he system operates across the entire speed range in combination
w ith the A BS system =>
page 241. If the A nti-Lo ck Br ake Sys tem
(ABS) ma lfunctions, the ESP w ill be o ut of act ion as we ll.
Activating
When you turn on the engine, ESP wi ll automatica lly be activated and
w ill pe rfor m a self- tes t. As soo n as t he tes t is co mplete d, th e sys tem
is in normal operating mo de.
Controls and equip­
ment Safety first Vehicle operation
Yo
u can activate a deactivated ESP or deactivated ESP/ ASR if required
b y pressi ng the =>
page 236, fi g. 1 9 8 => page 236, fig . 19 7 bu tton.
Wh en they are activated, the message
Stabilisation program on
appears briefly in t he di sp lay .
Deactivating
The ES P shoul d no rma lly be acti va te d a ll the tim e. I f necess ary, y ou
can deact ivate A nti-Slip Reg ulat io n (ASR) or th e Electro nic Sta biliza ­
t ion Progr am ( ES P) by p ress ing the button =>
page 23 6, fig. 198.
• Deactivating ASR: Tap th e button . In cer tain exceptional s itua­
t ions (e.g. driving with tire chains), the Anti -Slip Reg ulation (ASR) can
be dea ct iva te d =>
page 238. The m ess age ASR off Caution! Limited
driving stability
a pp ears in the d isp lay as well.
• Deactivating ESP/ASR Press the but ton for mor e tha n 3 seconds .
With the ESP/ ASR deactivated, the indicator light comes on, see
=>
p age 15. The m ess age Warning! Restri cted stability ap pears in
the display as we ll.
& WARNING
The Electronic Stabilization Program is nevertheless subje ct to the
laws of physics . It is particularly important to pay attention to
this fact on wet and slippery roads. It is therefore important that
you always adapt your driving to the condition of the road and
traffic conditions . Do not allow the increased safety provided by
the Electronic Stabilization Program system to lull you into accepting additional safety risks .
u
Vehicle care Do-it-yourself service Technical data

Intelligent technology
--------------------------------------------------' '----'----
pressing the=> page 236, fig. 198 button. When it is activated, the
message
ESP/ASR on appears briefly in the display.
Deactivating
You can deactivate the ASR if req uired by press ing the button (for less
than 3 seconds) =>
page 236, fig. 198. With the ASR deactivated, the
ESP check light comes on, see=>
page 15. The message ASR off
appears in the display as well. The ASR can be deactivated at any
speed.
The ASR should normally be activated all the time . Only in certain
exceptional situations when some slip is desirable does it make sense
to deactivate the ASR. Examp les:
• when driving with tire chains
• when driving in deep snow or on loose ground and
• when rocking the vehicle loose after it has become stuck .
When the abnormal situation is over, you sho uld activate the ASR
again.
& WARNING
The increased safety afforded by ASR does not mean that you can
take safety risks. Always adapt your driving style to the road
conditions and traffic situation.
(I) Tips
To ensure that the ASR works properly, all four whee ls must be fitted
with ident ical tir es . Any differences in rolling radius of the tir es can
cause the system to reduce eng ine power when this is not desired .
See also =>
page 303, "New tires and replacing tires and wheels".
Controls and equip­
ment Safety first Vehicle operation
Braking
General information
What
affects braking efficiency?
Operating conditions and driving habits
The brakes on today's automobiles are still subject to wear,
depending la rgely on ope rating conditions and driving habits=>& .
On vehicles that are either driven mostly in stop-and-go city traffic or
are driven hard, the brake pads should be checked by your authorized
Audi dealer more often than specified in the
Warranty & Mainte ­
nance booklet.
Failure to have your b rake pads inspected can result
in reduced brake performance .
On steep slopes, you should use the braking effect of the engine. This
way, you prevent unnecessary wear on the brake system. If you must
use your brakes, do not hold the brakes down continuously. Pump the
brakes at intervals.
Noises may occur when b rak ing depending on the speed, braking
force and outside cond itions such as temperatu re and humid ity.
Moisture or road salt
If you are driving faster than 31 mph (50 km/h) and the windshield
wipers are on, the brake pads will briefly touch the brake discs in
regula r interva ls so as to improve reaction time when braking on wet
surfaces. You, the driver, will not not ice anything.
Under certain condit ions, for example, when driving through water or
very heavy rai n, or even after washing your vehicle, the braking effect
can be reduced due to moisture (o r in free zing conditions ice) on the
bra ke pads. A few careful brake applications should dry off the brake
pads or remove any ice coatings.
Th e effectiveness of the brakes can be reduced when the vehicle is
dr iven on a salt-covered road and the brakes are not used. H ere too,
you should clean off accumu lated salt coating from brake discs and
pads with a few careful applications of the brake=>&,.
Vehicle care Do-it-yourself service Technical data

Intelligent technology
'-------------------------------------------------
vi dual components. It regulates consumption, so that more electrical
energy is not being used than is being generated and ensures an
optimal state of charge for the battery .
[I] Tips
• But even energy management cannot negate the limits of physics.
Consider that the power and life of a battery are limited.
• If starting ability is threatened, you are informed by a warning
~ page 245, "Driver notification in the instrument cluster display" .•
What you should know
The highest priority is given to maintaining starting capa ­
bility.
Th e battery is severe ly taxed in short-distance driving, in city traffic
and during the cold time of year. Abundant electrical energy is
required, but only a little is generated.
It is also critical if the engine
is not running and electrical components are turned on. In this
instance energy is being consumed but none is being generated.
It is in prec ise ly these sit uations that you will notice energy manage­
ment actively regulating 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,
electrical components are gradually cut back or sw itched off. This
reduces energy consumption and maintains starting capability over a
longer period.
Take into consideration that when you unlock your vehicle, some
convenience functions, such as the remo te key or power seat adjust­
ment, may not be available. The convenience functions will be avail­
able again when you turn on the ignition and start the engine.
W ith the engine turned off
If you listen to the radio, for example, with the engine turned off or
use other MMI functions, the battery is being discharged .
If starting capability is jeopardized due to energy consumption, the
following warning appears in the MMI display:
Please start engine, otherwise system will switch off in
3 minutes.
Th e warn ing indicates that the system will be turned off automati­
cally after 3 m inutes. If you wish to continue using the functions, you
have to start the engine.
With the engine running
Although electrica l energy is generated when the vehicle is being
driven, the battery can become discharged. This happens most ly
when little energy is being generated and a great deal consumed and
the battery's state of charge is not optimal.
T o br ing the ene rgy balance back into equilibrium, consumers which
require especially large amounts of energy are temporarily cut back
or switched off. Heating systems in particular require a great deal of
energy .
If you notice, for example, that the heated seats* or the
heated rear window are not heating, they have been temporarily cut
back or switched off. These systems will be ava ilable 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
eng ine id le speed the additional energy required is generated and the
battery is charged. •