~ Automatic transmission: Step on the brake
peda l and move the se lector lever to the P
or N position .
~ Press the key c:> fig. 73 -the eng ine will
start.
Sw itching the i gnition on /off
If you wou ld like to switch the ignition on
without starting the engine, follow t hese
steps :
~ Insert the key i nto the igni tion lock .
~ Press the key b riefly w ithout press ing the
clutch peda l (for manual transmissions) or
the brake peda l (for automatic transmis
s ions) .
~ To sw itch the ignition off, press the key
again .
When starting the engine, ma jor e lectr ica l
loads are switched off temporarily .
You can only remove the key with the ignition
switched off.
I f the engine sho uld not star t immediately,
the starting process is automatically stopped
after a short time. Repeat starting procedure .
A WARNING
-Never allow the engine to run in confined
spaces -danger of asphyxiation.
- Never remove the ign ition key from the
ignition look while the vehicle is moving.
Otherw ise, the steering lock could sud
denly engage and you would not be able
to steer the vehicle.
- Always take the key with you whenever
you leave your vehicle . Otherwise, the
engine could be star ted or e lectr ica l
equipment such as the power w indows
cou ld be operated. This ca n lead to seri
o us inj ury.
- Never leave c hildren or persons requ iring
assistan ce unattended in the vehicle. The
doors c an be lo cked using the remote
t ransmit ter, preventing people from es
caping from the vehicle on their own in
the event of an emergency. Depend ing
on the time of year, people inside the ve-
On the ro ad 73
hicle can be exposed to very high or very
low temperatu res.
(D Note
Avoid high eng ine rpm, fu ll th rottle and
heavy engine loads unti l the engine has
reached operating tempe rat ure -other
wise you r isk eng ine damage.
@ For the sake of the environment
Do not let the engine run w hile parked to
warm up. Begin dr iv ing immediately. T his
reduces unnecessary emissions.
@ Tips
- If the key cannot be removed from the
ignition lock, you have to pull the me
chanical key out of the maste r key in or
der to be able to lock the vehi-
cle c:>
page 35.
-After starting a cold engine, t here may
be a brief peri od of increased no ise be
cause the oil press ure must first bu ild up
in the hydraulic valve ad justers. This is
normal and not a cause for concern.
- If you leave the veh icle with the ignition
switched on, the ig nition w ill switch off
afte r a certa in per iod of t ime . Please
note that ele ctrical eq uipment such as
exterior ligh ts w ill sw itch off as well
w hen that happens .
7 4 On the road
Starting the vehicle with the emergency
key
Applies to vehicles: with ig ni tion lock
You can use the emergency key as an ignition
key in on emergency.
Fi g. 74 G love compar tme nt: Adapter for emergency
key
Fig. 75 Inse rt emergency key into the adapter
.. Take the adapter for the emergency key out
of the glove compartment
c!> fig . 74 .
.. Push the emergency key c::> fig . 75 fully into
the adap ter . Make sure tha t the Aud i rings
are facing up.
.. Press the emergency key in the adapter
down until it latches audibly .
.. Insert the adapter with the emergency key
forward into the ignition switch. The engine
can now be started as usual.
Stopping the engine
App lies to vehicles: with ig n ition lock
.. Bring the vehicle to a full stop.
.. Automatic transmission: Move the selector
lever to the P or N pos ition .
.. Press on the ignition key. The engine is
t u rned off.
.. You can now remove the key.
Steering lock
T he steering locks when yo u remove the igni
t ion key. The locked steering helps prevent
ve
hicle theft .
Emergency off
If it is necessary in un usual circumstances, the
engine can be switched off while the veh icle is
moving. The engine will be switched off if you
press on the key for an extended period .
A WARNING ~
-Never turn off the engine before the ve
hicle has come to a comp lete stop. The
fu ll function of the brake booster and the
power steering is not guaranteed. You
must use more force to turn or brake if
necessary. Because you cannot steer and
brake as you usually wou ld, this could
lead to crashes and ser ious injuries.
- For safety reasons, you should a lways
park your vehicle w ith the selector lever
in P. O therwise, the vehicle could in ad
ver ten tly roll away.
- The radiator fan can continue to run fo r
up to 10 minu tes
even after you have
turned off the engine and removed the ignit ion key. The radiator fan can a lso
turn on agai n if the engine coo lant heats
up because of intense sunlight or heat
bu ild-up in the engine compartment.
- Always take the key with you whenever
you leave your vehicle. Otherw ise, the
engine could be started or electrical
equ ipment such as the power windows
could be operated. This can lead to seri
ous injury.
- Never leave children or persons requiring
assistance unattended in t he vehicle . The
doors can be locked using the remote
transm itter, preven ting people from es
caping from the ve hicle on their own in
the event of an emergency . Depending
on the time of year, peop le inside the
ve
hicle can be exposed to very high or very
low temperatures .
CD Note
If the engine has been under heavy load
for an extended period, heat builds up in
the engine compartment after the engine
is switched off- there is a risk of damaging
the engine . Allow the engine to run at idle
for about two minutes before switching it
off.
Convenience key
Starting the engine
Applies to vehicles: with convenience key
The I STAR T ENGINE ST OPI button switches
the ignition on and starts the engine.
Fig. 76 Ce nter console : S TART ENGINE STOP b utto n
Starting the engine
.. Manual transmission: Fully depress the
clutch pedal and
move the shift lever to the
neutral position .
.. Automatic transmission: Step on the brake
pedal and
move the selector lever to P or N
~ .&, .
.. Press on the I STAR T ENGINE S T OPI button
~ fig . 76 - the engine will sta rt.
Switching the ignition on/off
If you would like to switch the ignition on
without starting the engine, follow these
steps :
.. Press the
!START E NGIN E STOPI button
without pressing the clutch pedal (for man
ual transmissions) or the brake pedal (for
automatic transmissions) .
.. To switch the ignition off, press the button
again.
On the road 75
If the engine should not start immediately,
the starting process is automatically stopped
after a short time. Repeat starting procedure .
When starting the engine , major electrical
loads are switched off temporarily.
After a cold engine is started, there may be a
brief period of inc reased noise because oil
pressure must first build up in the hydraulic
valve adjusters. This is norma l and not a cause
for concern.
A WARNING
- Never allow the engine to run in confined
spaces - danger of asphyxiation.
- Never turn off the engine until the vehi
cle has come to a complete stop.
- Always take the key with you whenever
you leave your vehicle. Otherwise, the
engine could be started or electrical
equipment such as the power windows
could be operated . This can lead to seri
ous injury .
- Never leave children or persons requiring
assistance unattended in the vehicle. The
doors can be locked using the remote
transmitter, preventing people from es
caping from the vehicle on their own in
the event of an emergency. Depending
on the time of year, peop le inside the ve
hicle can be exposed to very high or very
low temperatures .
CD Note
-Avo id high engine rpm, full throttle and
heavy engine loads until the engine has
reached operating temperature - other
wise you risk engine damage.
@ For the sake of the environment
Do not let the engine run while parked to
warm up. Begin driving immediately. This
reduces unnecessary emissions.
(D Tips
-After starting a cold engine, there may
be a brief period of increased noise be-
cause the oil pressure must first bui ld up
II-
76 On the road
in the hy dra ulic valve adjusters. This is
norma l and not a cause for concern.
- If you leave the vehicle with the ignit ion
switched on, the ignition will switch
off
after a certain period of time . Please
note that e lectrica l equipment such as
exter ior lights w ill switch
off as well
when that happens.
Switching engine off
Applies to vehicles: with conven ience key
" Bring your vehicle to a complete stop.
" Automat ic transm iss ion: Move the se lector
lever to the P or N pos it ion.
" Press the
!START ENGINE STOPI button
~ page 75, fig . 76.
St eering lock
The steering locks when you t urn the engine
off us ing the I STAR T ENGINE STOP I button
and open the dr iver's door. The locked stee r
i ng helps p reven t vehicle theft.
Emergency off
If necessary, the eng ine ca n be sw itched off
with the selector leve r in the R o r D/S pos i
tions. To do so, step on the brake pedal and
p ress and hold the
I START ENGINE STOP I but
ton vehicle speed must be less th an 6 mph
(10 km/h).
_& WARNING
- Never t urn off the eng ine before the ve
hicle has come to a complete stop . The
full f unction o f the brake booster and the
power steering is not guaranteed. You
must use more force to turn or brake if
necessary. Because you cannot steer and
brake as you usua lly would, this could
lead to crashes and se rious injur ies.
- For safety reasons, you s hould always
par k your vehicle with the se lector lever
in P. Ot herwi se, the ve hicle co uld i nad
vertent ly roll away.
- T he ra diator fan ca n continue to ru n for
up to 10 mi nutes even after yo u have
tu rne d off the eng ine and remove d the ignit
ion key. T he radiator fan can a lso
tur n on again if the engine coo lant heats
up because of intense sunlight or heat
bu ild-up in the engine compartment.
- Always take the key w ith you whenever
you leave your ve hicle. Otherw ise, the
eng ine could be sta rted or elect rical
equ ipme nt such as the power windows
could be ope rated. This can lead to seri
o us injury.
(D Note
If the engine has bee n under heavy load
fo r an extended pe riod, heat bu ilds up in
the engine compartment after the engine
i s sw itched off -there i s a r is k of damag ing
the e ngine. A llow the eng ine to run at i dle
for about two minutes before switching it
off.
Driver messages
Ignition i s on
This message appears and a warning tone
sounds if you open the d river's door when the
ignition is sw itched on.
No key id entified
This message appears when t he
I S TART ENGI NE STOPI button is pressed if
there is no master key ins ide the veh icle or if
the system does not recognize it . Fo r exam
ple, the master k ey cannot be recognized if it
is covered by an object (e.g. al uminum b rief
case) which
screens the radio s ignal. Elec tron
ic dev ices such as cell phones can also inter
fere with the radio s ignal.
Press brak e pedal to start engine
This message appears if you do not press the
brake pedal to start the eng ine in a veh icle
with an automat ic transm iss ion.
Press clutch pedal to sta rt engine
T his message ap pears if you do not press the
clutch pedal to start the engine in a vehicle
with a manual transmission. .,.
Shift to N or P to start engine
This message appea rs whe n attempti ng to
s ta rt the engine if the se le ctor lever for the
a u tomatic t ransmission is not in the P or N
p osition. The engine can on ly be sta rted w ith
the selector in these posit ions .
Is the key in the vehicle?
This m essage appears if the maste r key is re
moved from t he vehi cle w ith the eng ine run
ni ng.
If the mas ter key is no longe r in the ve
hicl e, yo u ca n not swi tch on the igni tion a fter
s t opping the eng ine a nd you also canno t st art
the eng ine again. Mo reover, yo u cannot lock
the vehicle from the outside with the key .
Shift to P otherwise vehicle can roll away.
Doors do not lo ck if lever is not in P.
This m essage appea rs for safety reaso ns
along w it h a wa rning signa l.
It appears if t he
s e lec to r l ever for the aut omat ic tra n sm iss io n
i s no t in the P po sition when switch ing off t he
ignit ion . Move the se lector lever to the P pos i
tion, othe rwise the veh icle is not sec ured
aga inst rolling away. You a lso cannot lock the
ve hicle using the locking button * on the door
h andle or using the remote key.
Convenience key defective! Use ignition lock
Thi s m essa ge appe ars if the eng ine mu st be
s ta rted or s to p ped using the ignition key and
no t th e
I S TART ENGINE STOP! button.
On the road 7 7
Electromechanical
parking brake
Operation
The ele ctromechani cal parking brake replaces
the hand br ake.
Fi g. 77 Center console: Park ing b rake
.,. Pull on the switc h@ ¢ fig. 77 to apply the
parking brake. The ind icator lig ht in the
sw itch illuminates.
.,. Step on the brake pedal or the accele rator
pedal and press the switch at the same t ime
t o re lease the par king brake. The indicator
light in the sw itch goes out.
Your vehicle is equipped with an e lectrome
c hanical p arking bra ke. The pa rking bra ke is
d esigned to p revent the ve hicle from rolling
u nin ten tionally and repla ces the hand b ra ke.
In add ition to the normal fu nctions of a tradi
t ional ha nd b rake, the electromechanical
par king b rake provides vario us conv enience
and sa fe ty f unct ion s.
When starting from rest
- The integral start ing ass ist helps you when
dr iving by automat ica lly releasi ng the par k
ing b ra ke ¢
pag e 78, Starting from rest .
-When start ing on inclines, the starting as
sis t preven ts the veh icle from unintentiona l
ly ro lling back . The braking force of the
pa rk ing brake is no t released u ntil su ffici ent
driving for ce h as been bui lt up at the
w heel s. ..,.
78 On the road
Emerg ency b rake function
An emergency brake ensures t hat the vehicle
can be slowed down even if the
normal brakes
fail c::>
page 79, Emergency broking.
Indicat or light s
-If the par king b rake is closed w ith the igni
t ion
s witc hed on the . (USA models) /
• (Canada mode ls) indica tor lights come
on in the instrum ent cluster and the switch .
-If the parking brake is closed w ith the igni
tion
s witc hed off the . (USA models) /
• (Canada mode ls) indicator lights come
on in the instrument clust er and th e switch
for about 20 seconds .
A WARNING
If a gear or a drive range (automat ic trans
m ission) is engaged with the vehicle sta
tionary and the engine runn ing, you must
in no instance accelerate o r release the
cl utch carelessly. Otherwise the vehicle
w ill sta rt to move immediately- r isk of an
accident .
@ Note
If the . symbol in the display or the
.. (USA models) . (Canada models)
ind icator light in the instr ume nt cl uster
flashes, there is a ma lf u nction in the brake
system. By pressing the
ISETI button, you
can bring up a driver message which ex
plains the malfunction in more detail. If
the driver message
Pa rking brake! ap
pears, there is an operating malfunction in
the park ing brake which you should have
repaired immediately by an authorized
Aud i deale r or other qualified workshop
c::>
page 15.
(D Tips
- You can apply the parking brake at any time - even w ith the ignition switched
off . Th e ignit ion must be t urned on in o r
der to release the par king brake. - Occasional noises when the parking
bra ke 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
regu lar interva ls. Any associated noises
are normal.
Parking
Parking
"' Press the br ake ped al to s top the veh icle .
"' Pull the button @ c::>
page 77, fig. 77 to set
the parking brake.
"' Automatic transmission: Move the selector
lever to P.
.,. Turn t he engine off c::>
,& .
.,. Man ual transmission: Shift into 1st gear.
In addition on inclines and gr ades
.,. Turn the steering wheel so that your vehicle
w ill roll aga inst the curb in case it shou ld
start to move.
A WARNING
- When you leave yo ur vehicle -even if on
ly briefly -always remove the igni tion
key. This app lies particularly when chi l
dren remain in the vehicle. Otherwise the
children could start the eng ine, release
the park ing brake or operate electrical
equ ipme nt (e .g . power windows). There
is the risk of an acc ident .
- When the veh icle is locked, no one -par
ticularly not children should rema in in
the vehicle . Locked doors make it mo re
d ifficult for emergency worke rs to get in
to the vehicle -putting lives at r isk .
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 @c::> page 77, fig . 77 to ap-
ply the parking brake . .,.
Starting and autom ati call y relea sing the
pa rking b rake
~ When you start to drive as usua l, the park
ing brake is automatically re leased and your
vehicle begins to move.
When stopping at a traffic signa l or stopp ing
in city traffic on vehicles with an automatic
transmission, the parking brake can be ap plied. The vehicle does not have to be held
w ith the footbrake . The park ing brake elimi
nates the tendency to creep with a drive range
engaged. As soon as you dr ive off as usual,
the park ing brake is released automatically
and the vehicle starts to move .
Starting on slop es
When starting on inclines, the start ing ass ist
prevents the vehicle from unintentionally roll
ing back. The braking force of the parking
brake is not released until sufficient dr iving
force has been b uilt up at the whee ls.
(D Tips
For safety reasons, the park ing brake is re
leased automatically only when the dr iv
er 's safety belt is engaged in the bu ckle.
Starting off with a trailer
To prevent rolling back unintentionally on an
incline, do the following:
~ Keep the switch@¢ page 77, fig. 77
pulled and depress the accelerator . The
park ing b rake stays app lied and p revents
the vehi cle from rolling backward.
~ You can release the switch @once you are
s u re that yo u are developing enough driving
force at the wheels by depressing the accel erator.
D epending on the weight of the rig (vehicle
and trai ler) and the severity of the incline, you
may roll backwards as you start. Yo u can pre
vent roll ing backwards by holding the parking
brake switch @pulled out and accelerating -
just as you would when starting on a hill wit h
a conventional hand brake .
On the ro ad 79
Emergency braking
In the event that the conventional brake sys
tem fails or locks .
~ In an emergency, pull the sw itch @
¢
page 77, fig. 77 and continue to pull it to
slow your vehicle down with the parking
brake .
~ As soon as you release the switch @ or ac-
celerate, the b ra ki ng process s tops.
If you pull the switch @and hold it above a
speed of about 5 mph (8 km/h), the eme rgen
cy bra king funct ion is initia ted . T he ve hicle is
braked at all four whee ls by activating the hy
draulic brake system. The brake performa nce
is similar to making an emergency stop¢&..
In order not to act ivate the eme rgency brak
ing by mis take, an audib le warning tone (buz
zer) so unds when the switch @is pulled. As
soon as the switch @ is re leased, or the acce l
erato r peda l is depressed, emergency braking
stops.
A WARNING
...--
Emergency braking should only be used in
an emergency, when the normal foot brake has fa iled or the brake pedal is obstructed .
Using the par king b rake to pe rform eme r
gency brak ing will slow your vehicle down
as if you had made a full bra ke application.
The laws of physics cannot be suspended
even with ESC and its associated compo
nents (ABS, ASR, EDS) . In corners and
when road or weather conditions are bad,
a full brake application can ca use the vehi
cle to sk id or the rear end to break away -
risking an accident.
Speed warning system
Overview
The speed warning system helps you to keep
your driving speed below a set speed limit.
The speed warn ing system warns if the driver
exceeds a p reviously sto red max imum speed .
A warn ing tone w ill sound as soon as the
Ill>
.. Select : ICAR lfunction button> Car systems
control button > Driver assist > Speed
warning.
Warning thresho ld 2 can be set in the speed
range starting from 20 mph to 150 mph (30
km/h to 240 km/h). Settings can each be ad
justed in intervals of 6 mph (10 km/h).
Cruise control
Switching on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph (30 km/h).
®
f
®t
0
Fig. 79 Con tro l lev er w it h push-bu tton
Fig. 80 D isplay : S ele ct ed speed
.. Pull the lever to position (D ¢ fig. 79 to
switch the system on.
.. Drive at the speed to be controlled .
.. Press button @to set that speed.
The stored speed and the green symbol
[ij;jl)~i~ (US model)/ .. (Canadian model) are
shown in the display ¢ fig. 80. The display
may vary, depending on the type of display in
your vehicle. The indicator light
[ij;(l)~i~ (US model)/ B (Canadian model) w ill
also light up in the instrument cluster.
On the road 81
The speed is kept constant by modifying en
gine power or through an active brake inter
vention.
_& WARNING
- Always pay attent ion to the traffic
around you when the cruise control is in
operation. You are always responsible for
your speed and the distance between
your veh icle and other vehicles .
- For reasons of safety, cru ise control
should not be used in the city, in stop
and-go traffic, on twisting roads and
when road conditions are poor (such as
ice, fog, gravel, heavy rain and hydro
p lani ng) -risk of accident.
- Turn off the cruise control temporarily
when enter ing turn lanes, highway exit
lanes or in construction zones .
- Please note that inadvertently "resting"
your foot on the accelerator pedal causes
the cruise control not to brake. This is
because the cruise control is overridden
by the driver's acceleration .
-If a brake system malfunction such as
overheating occurs when the cruise con
trol system is switched on, the braking
function in the system may be switched off. The other cruise control functions re
main active as long as the indicato r light
lijj(l )~i~ (US models) li'I (Canadian mod
e ls ) is on.
@ Tips
-Veh icles with manual transmiss ion: You
can attain the set speed only if the gear
that is currently engaged will allow it, or
if it does not tax the engine and allows i t
to run smoothly. Therefore shift into a
higher or lower gear in a timely manner.
- The brake lights illuminate as soon as
the brakes apply automatically.
Changing speed
.. To increase/decrease the speed in incre
ments, tap the lever in the
0 10 direction
¢ page 81, fig. 79. Ill>