top AUDI A5 CABRIOLET 2011 Service Manual

Warm and cold
Warm and cold
Deluxe automatic climate control
Applies to vehicles: with deluxe automat ic climate cont ro l
Description
The climate control system can be used to set a comfort­
able temperature inside the vehicle .
The climate control system is a combination of a heating and ventila­
tion system as well a cooling system respons ible for dehumid ifying
and cooling the air inside the vehicle.
Th e automatic climate control system automatically maintains a
temperature once it has been set. The temperature of the air from
the vents, fan speed (air volume) and air distribution are a lso auto­
matically adjusted . The system also takes into account strong
sunlight so that manual adjustment is not necessary . So in almost all
cases, automatic mode offers the best conditions for the comfort of
the occupants at all times of the year=>
page 90.
Please note the following :
The cooling mode lowers the humidity level inside the vehicle. This
prevents fogging up of the windows.
In the case of high outside humidity and temperatures,
condensation
can drip from the air conditioning system evaporator and form a pool
under the veh icle. This is normal and not an indication of leaks!
At low outs ide temperatures, the fan automatically switches to a
higher speed when the coolant reaches a sufficient temperature
except in the defroster position.
When starting with full throttle, the compressor of the automatic
climate control system is temporarily switched off to achieve full
engine power.
T o ensure engine cooling when the engine is under an extreme load,
the compressor is switched off at h igh coolant temperatures.
Pollutant filter
The pollutant filter (particle filter) ensures that impurities in the
outs ide a ir (e.g. dust, pollen) and odors are significantly reduced or
stopped. The air is also filtered in recirculation mode.
Th e pollutant filter e lement must be changed at the intervals speci­
fied in the service plan so that the performance of the automatic
climate control system is not impaired.
If the effect iveness of the filter decreases premat urely due to opera­
tion of the vehicle in areas with significant pollution, the filter
element must be changed between the specified service dates.
Key recognition
The current climate control settings are automatically stored and
assigned to the key being used. The settings assigned to the key are
restored automatically when the vehicle is started. These settings are
different when the power top is open or closed. Each driver can use
his or her preferred settings witho ut having to man ually adjust them
when using their own key.
If another driver changes the settings while using your key, your
prefer red sett ings will be erased.
Energy management
To prevent the battery from be ing discharged and to restore the
balance of energy, components which require large amounts of
energy are temporarily cut back or switched off=>
page 247. Heating
systems in partic ular require a great dea l of energy. If you notice, for
example, that the rear window heater is not heating , the n it has been
temporarily reduced or switched off by
energy management . These
systems are available again as soon as the energy balance has been
restored. .,,_

Deluxe automatic climate control
plus
A pplie s to v ehicl es: w ith d elu xe auto matic climate control p lu s
Description
The air conditioner is fully automatic and is designed to
maintain a comfortable and uniform climate inside the
vehicle.
We recommend the following settings:
- Set the temperature to 75
°F (+23 °C).
- Press the [AUTO] button .
With this setting, you attain maximum comfort in the least amount
of time. Change this setting, as desired, to meet your personal needs.
The climate controls are a combination of heating, ventilation and
cooling systems, which automatically reduce humidity and cool the
air inside your vehicle.
The climate control automatically maintains a temperature once it has been set. The temperature of the air from the vents, fan speed
(air volume) and air distribution are also automatically adjusted . The
system also takes into account strong sunshine so that manual
adjustment is not necessary . So in almost all cases ,
automatic mode
offers the best conditions for the comfort of the occupants at all
times of the year:::::,
page 97.
Please note the following:
Turn on the air conditioner to reduce humidity in the vehicle. This also
prevents the windows from fogging up.
When the outside temperature is high and the air is very humid,
condensation from the evaporator may drip under the vehicle . This is
normal and does not indicate a leak.
Controls and equip ­
ment Safety first
Warm and cold
If the outside temperature is
low, the fan normally only switches to a
higher speed once the engine coolant has warmed up sufficiently .
The air conditioner temporarily switches off when you drive off from
a standstill using full throttle to save engine power.
The compressor also switches off if the coolant temperature is too
high, so that t he engine can be adequately cooled under ex treme
loads.
Pollutant filter
The pollutant filter (particle filter) ensures that impurities in the
outside air (e.g. dust, pollen) and odors are significantly reduced or
stopped . The air is also filtered in recirculation mode.
The pollutant filter element must be changed at the intervals speci­
fied in the service plan so that the performance of the automatic
climate control system is not impaired .
If the effectiveness of the filter decreases prematurely due to opera­
tion of the vehicle in areas with significant pollution, the filter
element must be changed between the specified service dates.
Key recognition
The current climate control settings are automatically stored and
assigned to the key being used. The settings assigned to the key are
restored automatically when the vehicle is started. These settings are
different when the power top is open or closed. Each driver can use
his or her preferred settings without having to manually adjust them
when using their own key.
If another driver changes the settings while using your key, your
preferred settings will be erased.
Energy management
To prevent the battery from being discharged and to restore the
balance of energy, components which require large amounts of
energy are temporarily cut back or switched off=>
page 247. Heating
systems in particular require a great deal of energy .
If you notice, for
example, that the rear window heater is not heating, then it has been
temporarily cut back or switched off by
energy management. These .,_
Vehicle care Technical data

_________________________________________________ O_ n_t_ h _ e_ ro_ a_d __ ffl'II
& WARNING (co ntinued )
• Never remo ve the ignition key from the ignition look while the
vehicle is moving. Otherwi se, the steering lock could suddenly
engage and you would not be able to steer the vehicle.
0 Note
• In the event of a malfunction in the electronic ignit ion lock a
symbo l in th e instr umen t cluster flashes with the message
Ignition
lock defective .
• Avoid h igh eng ine speeds, fast acce lerat ion or heavy eng ine loads
whi le the engine is still co ld. This cou ld damage the engine .
<£> For the sake of the environment
To avoid unnecessary engine wear and to reduce exhaust emiss ions,
do not let your vehicle s tand and w arm up. Be re ady to dr ive off i mme­
diately after starting your ve hicle. Mai ntain mode rate speed until the
eng ine is complete ly w arm . R emembe r, the eng ine per forms best at
operat ing temperature.
[I) Tips
• If the key ca nnot be removed from the ignition lock , yo u have to
pull the mec hanica l key o ut o f the maste r key in o rde r to be able to
lock the ve hicle Th e veh icle can be locked with the mec han ical key
=> page 40.
• If you open the driver's door with the ig nit io n switched on, a
buzze r soun ds and the message
Ignition is on appea rs in the instru ­
ment cl uster d is p lay . Switch t he ig nitio n off .•
Stopping the engine
- Bring the vehic le to a fu ll s top.
Controls and equip ­
ment Safety first
M
ove the select or lever to the P or N po sit ion .
- Press on t he igni tion key. The engi ne is tu rned of f.
Emergency off
If it is necessary in unusual circ umstances, the engine can be
switched off while the vehicle is mov ing . The eng ine will be switched
off if you press on the key for an extended period.
& WARNING
• Never turn off the engine until the vehicle has come to a
complete stop .
• The brake booster and servotronic only work when the engine
is running . With the ignition turned off, you ha ve to apply more
force when steering or braking. Since you cannot steer and stop
normally, this can lead to accident s and serious injuries.
• The radiator fan can continue to run for up to 10 minute s even
after you have turned of f the engine and removed the ignition key.
The radiator fan can also turn on a gain if the engine coolant heats
up becau se of intense sunlight or heat build-up in the engine
compartment.
0 Note
Do not stop the engine immediately after har d or extended dr iving.
Keep the eng ine runni ng fo r approx imately two m in utes to p revent
excessive heat b uild -up. •
Vehicle care Technical data

ffl..__O_ n_ t_h _ e_ r_ o_ a_ d _________________________________________________ _
Starting and stopping the engine
with convenience key
A pplies to veh ic le s: with conven ience ke y
Starting the engine with the
[START ENGINE S TOP] button
This button switches on the ignition and starts the
engine.
Fig. 110 Convenience
key: START ENGINE
STOP
button
- Step on the brake pedal and move the selector lever to P
orN =>& .
- Pressonthe[START ENGINE STOP)button::::>fig. 110-
the engine will start.
By pressing the [STAR T ENGINE STOP] button without depressing
the clutch or the brake peal, the ignition is switched on and switched
off by pressing it again.
If the engine does not start immediately, stop trying after 10 seconds
and then try to restart the engine about 30 seconds later.
After a cold engine is started, there may be a brief period of increased
noise because oil pressure must first build up in the hydraulic valve
adjusters. This is normal and not a cause for concern.
Driver message in the instrument cluster display
No key identified
This message appears when the !START ENGINE STOP] button is
pressed if there is no master key inside the vehicle or if the system
does not recognize it. For example, the master key cannot be recog­
nized if it is covered by an object (e.g. aluminum brief case) which
screens the radio signal. Electronic devices such as cell phones can
also interfere with the radio signal.
Press brake pedal to start engine
This message appears if you press the !START ENGINE STOP)
button to start the engine and do not depress the brake pedal. The
engine can only be started if the brake pedal is depressed.
Engage N or P to start engine
This message appears when attempting to start the engine if the
selector lever for the automatic transmission is not in the P or N posi­
tion. The engine can only be started with the selector in these posi­
tions.
Key not in vehicle
This message appears along with the.:! symbol if the master key is
removed from the vehicle with the engine running. It is intended to
remind you (e.g. when changing drivers) not to continue the journey
without the master key.
If the master key is no longer in the vehicle, you cannot switch on the
ignition after stopping the engine and you also cannot start the
engine again. Moreover, you cannot lock the vehicle from the outside
with the key.
Shift to P, otherwise vehicle can roll away. Doors do not lock if lever
is not in P.
This message appears for safety reasons along with a warning signal.
It appears if the selector lever for the automatic transmission is not
in the P position when switching off the ignition with the
!START ENGINE STOP] button. Move the selector lever to the P _..

___________________________________________________ O_ n_ t_h _e_ r_o _a_ d __ _
position, otherwise the vehicle is not secured aga inst rolling away.
Y ou also ca n not lock t he vehi cle using th e locking button on the door
hand le or us ing the remote key .
Convenience key defe ctive ! Use ignition lock
T hi s message appears if t he veh icle has to be sta rted not w ith the
! STAR T EN GINE STO PJ bu tton bu t with the ig nition key.
& WARNING
• Never allow the engine to run in confined spaces -danger of
asphyxiation.
• Never turn off the engine until the vehicle has come to a
complete stop.
• The brake booster and servotronic only work when the engine
is running . With the ignition turned off , you have to apply more
force when steering or braking. Since you cannot steer and stop normally, this can lead to accidents and serious injuries.
0 Note
• Avoid high engine rpm, full throttle and heavy engine loa ds until
t he e ngi ne h as r eache d op erat ing temperat ure -oth erwi se you ri sk
eng ine damage.
• Th e en gine ca nnot be sta rted by p us hi ng or tow ing t he veh icle.
• If the eng ine has bee n un der h eavy load for a n ex tended per iod,
heat b uilds up i n the engin e compartmen t after the engine is
switched off- there is a risk o f damag ing the engine. Allow the engine
t o r un at idle for abou t 2 min utes before sw itc hing it off.
[I) Tips
If y ou open t he dr iver 's door wi th th e ig nit io n sw itche d on, a bu zzer
so unds and the message
Ignition is on appears in the instrument
clu ster displa y. Swi tch t he ig nition o ff.•
Controls and equip ­
ment Safety first
App
lies to vehicles : w ith con venience key
Sw itching engine off with the
[ START ENGINE S TOP] button
- Bring yo ur ve hic le to a co mplete sto p.
- Aut omat ic tra nsmissi on*: Mo ve the select or l eve r to the P
o r N posit ion.
- Press the !ST ART EN GI NE STO P] but to n => page 108,
fig . 110 .
Emergency OFF function
If necessary, the eng ine ca n be switched off with the se lecto r lever in
t he R, Dor S* po sitio ns. To d o so, step o n the b rake pedal and pr ess
and ho ld the
! ST ART ENGINE STOPJ button (vehicle speed must be
les s than 6 mph / 10 km /h.
& WARNING
• Never turn off the engine until the vehicle has come to a
complete stop.
• The brake booster and servotronic only work when the engine
is running . With the ignition turned off , you have to apply more
force when steering or braking. Since you cannot steer and stop normally , this can lead to accidents and serious injuries .
• For safety reasons, you should always park your vehicle with
the selector lever in P . Otherwise, the vehicle could inadvertently
roll away .
• After the engine has been switched off , the radiator fan can
continue to run for up to 10 minutes -even with the ignition
switched off. It can also switch on again after some time if the
coolant temperature rises as the result of a heat buildup or if the
engine is hot and the engine compartment is additionally heated
by the sun's rays.
~
Vehicle care Technical data

On the road -
----------------
more detail. If the driver message Parking brake! appears, there is an
operat ing malfunction in the parking brake which you should have
repaired immediately by an authorized Audi dealer or other qualified
workshop ~
page 30.
[I] Tips
• You can apply the parking brake at any time -even with the igni­
tion turned off. The ig nition must be turned on in order to release the
parking brake.
• Occasional noises when the parking brake is applied and released
are normal and are not a cause for concern.
• When the vehicle is parked, the parking brake goes through a self­
test cycle at regular intervals . Any associated noises are normal. •
Parking
Various rules apply to prevent the parked vehicle from
rolling away accidentally.
Parking
-Stop the vehicle with the foot brake.
- Pull the switch to apply t he parking brake.
- Move the selector lever to P.
- Turn the engine off::::>&.
In addition on inclines and grades
-Turn the steering wheel so that your vehicle will ro ll
against the curb in case it should start to move.
_& WARNING
• When you leave your vehicle -even if only briefly· always
remove the ignition key. This applies particularly when children
Controls and equip ­
ment Safety first
& WARNING
(continued )
remain in the vehicle. Otherwise the children could start the
engine, release the parking brake or operate electrical equipment
(e.g. power windows). There is the risk of an accident.
• When the vehicle is locked, no one -particularly not children
should remain in the vehicle. Locked doors make it more difficult
for emergency workers to get into the vehicle -putting lives at
risk. •
Starting from rest
The starting assist function ensures that the parking
brake is released automatically upon starting.
Stopping and applying parking brake
-Pull the switch to apply the parking brake.
Starting and automatically releasing the
parking brake
- When you start to drive as usual, the parking brake is auto -
matically released and your vehicle begins to move.
Whe n stopping at a tra ffic signal or stopping in city traffic on ve hicles
with an automatic transmission, the parking brake can be applied.
Th e vehicle does not have to be held with the footbrake. The parking
brake eliminates the tendency to creep with a drive range engaged.
As soon as you drive off as usual, the parking brake is released auto­
matically and the vehicle starts to move.
Starting on slopes
When starting on inclines, the starting assist prevents the vehicle
from unintentionally rolling back. The braking force of the parking
brake is not released until sufficient driving force has been built up at
the whee ls. ..,
Vehicle care Technical data

""L___::O:::.:., n:....:: t.:..:h :.:e :...:.. r.:::o :.::a :.: d=--------------------------------------------------
(I] Tips
For s afety reasons, t he pa rking br ake is r eleased automatically only
when the driver 's safety belt is engaged in the buck le .•
Starting off with a trailer
To prevent rolling back unintenti onally on an incline, do
the following :
-Keep the switch pu lled and depress the accelerator. T he
parking brake stays a pp lied and prevents the vehic le from
ro lling backward.
- You can re lease the switch once you are sure tha t you are
deve lopi ng enough driving force at t he wheels by
depressing the accelerator .
Depending on the we ight of the rig (vehicle and trailer) and the
sever ity o f the in cl ine, you may roll backwa rds as you start . You can
prevent roll ing backwards by holding the park ing brake sw itch pulled
out and accele ra ting -just as you wou ld when starting on a hill wi th a
conventional hand brake .•
Emergency braking
In the event that the conventional brake system fails or
locks .
-In an emergen cy , pull t he sw itch and contin ue to pull it to
slow your vehic le down with t he p arking brake.
- As soon as you re lease t he swi tch or acce lerate, the
bra king process s tops.
If you pull the switch and hold it above a speed of about 5 mph (8
km/h), the emergency braking fu nction is initiated . The vehicle is braked at all four wheels by activating the
hydraulic brake system.
Th e b rake pe rformance is s imila r to mak ing an eme rge ncy sto p .=>
&
In order not to act ivate the emergency brak ing by m istake, an audib le
warning tone (buzzer) sounds when the switch is pulled. As soon as
t he swi tch is re leased, or the acce lerator pedal is dep ressed , emer ­
gency braking stops .
& WARNING
Emergency braking should only be used in an eme rgency , when
the normal foot brake has failed or the brake pedal is obstructed .
Using the parking brake to perform emergency braking will slow
your vehicle down as if you had made a full brake application . The
laws of physics cannot be suspended e ven with ESP and its associ ·
at ed components (ABS, ASR, EDS ). In corners and when road or
weather conditions are bad , a full brake application can cause the
vehicle to skid or the rear end to break away· ri sking an accid ent. •
Driver messages in the instrument cluster
Warning Vehicle incline i s excessive
Th is message appears when the parking brake is applied on an incline
t ha t exceeds abo ut 3 0%.
I n th is case the braking power of the parking brake may
not be
adequate
to prevent the vehicle from rolling unintentionally.
Pl ease release parking brak e
Please note that for safety reasons the pa rking brake is re leased auto ­
matically on ly if the d river's seat be lt is fully engaged i n the buck le .
To relea se the parking brake pre ss the brake pedal
Th is dr iver message appears when the switch to release the parking
brake was pressed . The par king brake can only be released if you s tep
on the brake peda l and at the same time p ress the switc h or you auto- _.,

On the road -_______________ __.
matically release the pa rking brake w ith the starting assist
==;, page 111 .
,
Parking b rake!
Thi s driver message appea rs together wi th t he ye llow J symbol
when there is a parking brake malfunction .
Malfunction starting assi st
Th is driver message appears if there is a starting assist malfunction .
T he automati c re lease of the park ing brake w hen s tarting is malfunc­
tioning. You have to release the parking brake manually by pressing
t he swi tch . Have the problem correc ted by an author ized A udi
dealer. •
Cruise control
Applies to veh icl es: w it h cru ise co ntro l
Switching on
The cruise control system makes it possible to drive at a
constant speed starting at 20 mph (30 km/h).
A--
Con tro ls a nd e quip ­
m en t
Fig. 11 2 Control lever
w ith push -butt on
Vehicle OP-eration
Radici'WXRK
Fig. 11 3 Disp la y:
Se lect ed spee d
-Pull the lever to position ©~ fig . 112 to sw itch the
system on .
- Drive at th e spee d to be con troll ed .
- Press button @ to set that speed.
The stored speed and the green symbol (CRUISE (US model)/ 0"
(Can ad ian model) are shown in the display ==;, fig. 113. The display
may
vary, depend ing on the type of display in your ve hicle . The indi­
cato r light
CRUISE (US model)/ vf (Canadian model) w ill also light u p
in t he instr ument cluster.
The speed is kept constant by modifying engine power or through an act ive brake inte rvention .
& WARNING
• Alway s pay attention to the traffic around you when th e cruise
c ontrol is in operation . You are alwa ys respon sible for your speed
and th e di st a nce betwe en your vehicle and oth er vehicl es.
• Fo r rea sons of safet y, crui se contr ol should not be u sed in the
city, in stop-and-go traffi c, on twisting road s and when road
c ond ition s are poor (su ch as ice , fog , gra vel, he avy rain and hy dro­
planing ) -you could hav e an ac cident.
• Switch the crui se c ontrol off temporaril y when dri ving in
turning lane s, highw ay ex it s or in construction zones .
Vehicle care Do-it-yourselt service iTechnical data

ffl Adaptive cruise control .._ __ :,..._ ____ _,;__,;_...;.____ ________________________________ _
Adaptive cruise control
Speed and distance control system
Applies to veh icl es : w it h adaptive c ruise contro l
Description
The adaptive cruise control driver assistan ce program is a
combined speed and distance control system .
Fig. 114 Front
bum per : Po sitio n of
r a d ar sen sor
Any speed betwee n about 20 mph (30 km/h) and about 95 mph
( 1 50 km/ h) can be set and held with the adaptive cruise control. The
system also regu lates a pre-set distance from the vehicle ahead
w ith in the limits of the system described.
Driv ing c an be more relaxed, particularly o n long tr ips on inter states
or on other highways that a re generally straig ht.
How does it work?
Yo u ca n operate the adaptive c ruise contro l using the leve r o n the
steer ing wheel column:::,
page 119, "H ow is the speed sto red? " and
=:> pag e 121, "How is the distance (time interval) set?".
Driver information
Important info rmation is brought up in the speedometer and in the
instrumen t clust er dis play as the ve hicl e is be ing driven :::,
page 122,
"Driver in format ion ".
What is important for you to know
The adaptive cru ise cont rol is set with system-specified lim its, that is,
a s a driver, yo u will h ave to adju st the speed and dist an ce to the
vehicle ahead in some instances :::,
page 126, "Driver inte rvention
promp t" and =>
page 127, "Sy stem limi ta tions ".
& WARNING
Improper u se of the adaptive cruise control can cause colli sion s,
othe r accidents and serious personal injury.
• Never drive at speeds that are too high for traffic, road and
weather condition s.
• Never follow the vehicle in front so closely that you cannot stop
your vehicle safel y. The adaptive cruise control cannot brake the
vehicle safely when you follow another vehicle too closely . Alway s
remember that the adapti ve cruise control has a braking power
that i s only about 25% of the vehicle 's maximum br aking ability,
the automatic b rak ing function cannot bring the vehicle to a stop.
• Never use adaptive cruise control on roads where you cannot
drive safely at a steady speed , including city , stop-and-go or heavy
traffi c, on winding road s or when road cond ition s are poor (for
example , on ice, gravel, in fog, heavy rain or on wet roads that
in crea se the risk of hydroplaning).
• The rada r sensor' s
vis io n can be reduced by rain, snow and
heavy spray . This can re sult in vehicle s driving ahead being inade­
qu ately detected or, in some circumstances , not detected at all. If
necessary, t ake action yourself! ..,

____________________________________________ A_ d_ a.._p _t_ i_ v _e_ c_r_u _ i_ s _e_ c_o_ n_ t_r _o _l __ ffl'II
& WARNING (co ntinued )
• Always turn off adaptive crui se control when entering turn
lanes, highway ex it lanes and con struction zones or similar situa­
tions because the vehicle will automatically accele rate to the
stored speed .
• Never rest your foot on the accelerator pedal, especially when
the adaptive cruise control is being u sed because doing so will
override the braking function and prevent the brakes from being
applied by the system when it detect s a situation when the brake s
must be applied.
• Alway s remember that the adaptive cruise control has limits -
it does not react when you drive towards an obstacle or something
else on or near the road that is not moving, such as vehicles
stopped in a traffic jam , a stalled or disabled vehicle .
• Always remember that the adaptive cruise control cannot
detect a veh icle th at i s driving towards you in your traffic lane and
that it cannot detect narrow vehicles such as motorcycles and bicy­
cles .
[ i] Tips
• For safety reasons, the stored speed is deleted when the ignition
is turned off.
• The Electronic Stabilization Program (ESP) and the Ant i-Slip Regu ­
la tio n (A SR) c anno t be de activated when the adaptive cruise cont rol
is sw itched on .
If the ESP and the Anti -S lip Regulation (ASR) has been
de activ at ed an d yo u the n switch on the ad apt ive cruise cont rol, the
ESP fu nction w ill also be activated automatically.
• Dam age cau sed by accide nts (e.g. if the vehicle is dam age d whe n
park ing) can affect the rada r sensor settings. This can cause t he
sys tem to malfunc tion or switch off comple tely.
• The radar sensor cover is heated. In w inter conditions, you should
st ill ch eck befor e dr iv in g to make s ure i t is free of ice and s now. If
necessary, clean the area nea r the rada r sensor carefully=>
page 116,
fig. 114 .
Controls and equip ­
ment Safety first
•
To ensure that the radar sensor is not blocked , fore ign objects
(e .g. st ickers, add -on par ts) m ust no t cover the are a ne ar th e radar
sensor=>
page 116, fig . 114 . The area near t he radar sensor must not
be painted, either .
• For Declaration of Compliance to United States FCC and Industry
C an ada regula tions =>
page 34 6. •
App lies to ve hicle s: with adap tiv e crui se contro l
How does adaptive cruise control work?
Vehicles traveling ahead are de tec ted w ith the aid of a
ra dar sens or.
I;= =;. =============== --~
~
l8
Fig. 115 Radar sen sor
mea sureme nt r an ge
A radar sensor is buil t into the front of the vehicle=> fig. 115, which
is subject to ce rtain system limits =>
page 12 7 . Stationary o bjects are
not taken into cons iderat ion. The system is intended to measure the
distance to reflective s urfaces. The system responds after the
dis tance measuremen t has taken place. If a meas urement is not
poss ible, the system does not respond.
Open road
When the road is clear, the adaptive c ruise contro l works like cr uise
cont rol. It ma inta ins a constant target speed specified by the drive r.
~
Vehicle care Technical data