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Ignition lock and ignition switch
Ignition key positions
The engine con be started or turned off with
the ignition key.
Fig. 122 Igni tion switch pos it io n s
Position @
The ignition key can be inserted into the igni
tion switch in this position . This automatically
unlocks the steering column lock . When the
ignition key is removed, the steering column
lock is automatically locked
Q .&. .
Switching the ignition on/preheating (D
Turn the ignition key to this position and re
lease it. On vehicles with a d iesel engine*, the
system can preheat in this position .
Starting the engine@
The engine starts with the key in this position.
Major electrical loads are temporarily turned
off.
Ignition off@
Turn the ignition key to this position and re
lease it.
A WARNING ,~ ~
- Never remove the key from the ign ition
lock whi le the vehicle is moving. The
steering wheel will lock, causing loss of
control.
- If you have to leave your vehicle, even for
just a minute, always remove the ignition key and take it with you. This is especially
important if you are going to leave chil-
On the road 107
dren unattended in the vehicle. The chil
dren could start the engine or use other
vehicle controls. Unsupervised use of ve
hicle controls (for example, power win
dows) can cause ser ious personal inju
ries.
(D Note
- If the . symbol in the display blinks,
there is a malfunction in the electronic
steering column lock . Follow the instruc
tions in
Q page 33, i Steering malfunc
tion .
-If the . symbol in the display blinks,
there is a malfunct ion in the electronic
ignition lock. Fol low the instructions in
Q page 33, .Pe Ignition lock malfunction.
a) Tips
-If you release the ignition key in position
@, the key automatically returns to posi
tion (!).
- If you open the driver's door when the ig
nition is sw itched on, a buzzer sounds
and the message
Ignition is on appears
in the instrument cluster display. Please
switch the ignition off.
- T o prevent malfunctions in the ign ition
lock, remove any dirt or deposits from
the key bit so that they do not enter the
ignition lock.
Ignition key safety lock
The ignition key con only be removed when
the selector lever is in the P (Pork) position.
After turning off the ignition, the ignition key
can only be removed from the ignition lock
when the selector lever is in the P (Park) posi
tion. Afte r you have removed the key, these
lector lever is locked and cannot be moved.
110 On the road
reac hed o per ating temperature -other
wise you risk engine damage.
- The eng ine cannot be started by pushing
or towing the vehicle.
@ For the sake of the environment
Do not allow the engine to warm up with
t he vehicle stationary. Start driving right
away . In th is way you avoid unnecessary
emissions.
@ Tips
If you open the drive r's door when the ig
nition is switched o n, a buzze r sounds and
the message
Ignition is on appears i n the
instrument cluster disp lay. Please switch
the ignition off.
Switching engine off with the~
button
App lies to veh icles: wit h Co nvenience key
Fig . 125 Convenience key: ENGINE STOP button
.. Bring your vehicle to a complete stop.
.. Move the selector lever to the P or N pos i-
t ion.
.. Press the
!STOP ! button c;, fig. 125.
Pressing the ! STOP ! button once switches off
the eng ine and the ignition. If you press t he
!STOPI button again for more than 1 second,
the steering is locked , provided that the selec
tor lever is in t he P pos it ion
c;, & .
Emergency OFF function
If necessary, the eng ine can be sw itched off
with the selector lever in the R, Dor S posi
tions . To do so, step on the brake pedal and press and ho
ld the
! STOP ! button (vehicle
speed must be less than 6 mph/ 10 km/h).
.&_ WARNING
-
- Never turn off the engine until the vehi-
cle 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 mo re force when steeri ng or brak ing.
Since you cannot stee r and stop normal
ly, t his can lead to acc idents and se rious
. . . in Juries.
- For safety reasons, you sho uld a lways
pa rk your vehicle wit h the selector lever
in P. O therwise, the vehicle could inad
ver ten tly roll aw ay.
- Afte r the eng ine has been switch ed off,
t he r adi ator fa n can cont in ue to run f or
up to 10 minu tes -even with the igni tion
switched off . It can also switch on again
after some t ime if the coolant tempera
ture rises as the resu lt of a heat b uildup
or if the engine is hot and the engine
compartment is additionally heated by
the sun's rays.
(D Note
If the engine has been under heavy load
for an extended pe rio d, heat b uilds up in
the engine compartment after the engi ne
i s sw itched off -there is a r isk of damag ing
the e ngine. A llow the engi ne to run a t id le
fo r about 2 minutes before switching it
off .
Driver messages in the instrument
cluster display
Applies to veh icles: w it h Co nvenience key
If a func tion is not present, a driver message
appears.
No key identified
T his message appears when the I STAR T I but-
ton is pr essed if there is no master key ins id e
the vehi cle or if the system does not recogn ize
IJ,-
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brake pedal immediately or engage the
parking brake.
- Should the engine stall, depress the
brake pedal immediately or engage the
parking brake.
- In order to prevent the vehicle from roll
ing back unintentionally when starting in
stop-and-go traffic, keep the brake pedal
depressed for a few seconds before driv
ing off .
- When you leave the vehicle - even if only
briefly -, sw itch off the ignition and
make sure to remove the ignition key . Al
so engage the
park ing br ake to prevent
your vehicle from rolling u nintentionally.
Th is parti cularly applies if chi ldren are
left in the vehicle - danger of accident!
Cruise control
Switching the system on
Th e cruise control syst em makes it possible to
drive at a constant speed starting at
20 mph
(30kmlh).
Fig. 127 Contro l leve r wi th s et button
Fig. 128 D is play: Selected speed
:3 .,. Pull the lever to position (D ~ fig. 127 to "". rl I.O
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switch the system on .
.,. Drive at the speed you wish to set.
On th e road 113
.,. Press button @to set that speed.
The sto red speed and the indicator light
Ctj;\1)~14 (US model) ;&I (Canad ian model) ap
pear in the instrument cluster display
~ fig. 128 . The display may vary depending on
the type of display in your vehicle.
A WARNING
- Always pay attention to traffic even when
the cruise control is switched on. You are
always responsible for your speed and
the distance between your veh icle and
other veh icles .
- For safety reasons, the cruise 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 laning) - risk of accident.
- Turn off the cruise control temporarily
when en ter 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.
- Never use the cruise control when driving
off-road o r on unpaved roads. The cruise
control is intended for use only when the
vehicle is being operated on paved roads,
and is not suitable for use off-road or on
unpaved roads .
(D Tips
The cruise control cannot maintain a con
stant speed when driving downhill. The ve
hicle will accelerate under its own weight .
Downshift to a lower gear or use the
brakes to slow down.
Changing speed
.,. To increase/decrease the speed in incre
ments, tap the lever in the
0 10 direction
~ page 113, fig . 127 . Ill>-
114 On the road
• To increase/decrease the speed quickly, hold
the lever in the
0 10 direction unti l the de
s ired speed is displayed.
You can a lso press the accelerator pedal down
to increase your speed , e .g. if you want to
pass someone . The speed yo u saved earlier
will resume as soon as you release the acceler
ator pedal.
If , however, you exceed your saved speed by
5 mph (10 km/h) for longer than 5 minutes ,
the cruise contro l will turn off temporarily .
The symbol will go out but the saved speed
will be retained.
Presetting your speed
You con preset your desired speed while the
vehicle is not moving.
• Turn on the ignition.
• Pull lever into position
(D c:;, page 113,
fig. 127.
• Press the lever in the 0 or O direction to
increase or decrease you r speed .
• Release the lever to save that speed .
This funct ion makes it possible, for example,
to save the speed you want before driving on
the highway . Once o n the hig hway, activate
the cruise contro l by pulling the lever toward
(D .
Switching the system off
Temporary deactivation
• Press the b ra ke peda l, or
• Press the lever into pos it ion @ (not clicked
into p lace)
r:!;> poge 113, fig . 127, or
• Drive for longer than 5 minutes at more
than 5 mph (10 km/h) above the stored
speed.
Switching off completely
• Press lever in to posi tion @ (clic ked into
place), or
• Switch the ignition off .
The system reta ins the saved speed if yo u de
activate the cru ise con trol tempo rari ly. To re- sume the saved speed, re
lease the brake ped
al and pu ll the lever to position
(D .
Switch ing the igni tion off e rases the saved
speed.
A WARNING ~
You shou ld only ret urn to the saved speed
if it is not too fast for the c urrent traffic
conditions -risk of an accident!
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Adaptive cruise control Speed and distance
control system
Description
Applies to vehicles: with adaptive cruise cont rol
The adaptive cruise control driver assistance
program is a combined speed and distance
control system .
Fig . 12 9 Fro nt bu mper: Pos itio n of r adar se nsor (not
v is ib le from out side)
Adapt ive cruise control can he lp ma ke driv ing
more relaxed and less tiri ng , particularly dur
in g long trips on inters tates or other hig hways
that are genera lly st raight. The sys tem can al
so ass ist in stop and go traffic .
The adap tive cruise co ntrol wor ks within a
spee d range be tween 0 and 95 mph (150 km/
h ). Set ACC to maintain a constant, legal trav
e l speed between 20 and 95 mph (30 -150
km/h) that is appropriate for prevailing traff ic
conditions. Select a following distance to the
veh icle ahead and ACC will adjust your speed
to maintain that d istance down to a stop . At a
speed below 20 mph (30 km/h), the min imum
speed setting of 20 mph (30 km/h) will be se l ected a utomati ca lly.
Adapt ive cruise control has technical limita
tions that you must know, so p lease read th is
section carefully , understand how the system
wo rks and use it properly at a ll times.
How does it work?
You can operate the adaptive cruise control
usi ng the lever on the steering wheel column
c::> page 118, How is the speed stored? and
Ad apti ve crui se control 115
c::> page 120 , How is the distance (time inter
val) set? .
Driver information
Important informa tion is broug ht up in the
speedomete r an d in the instr ument clus ter
display as the vehicle is being driven
c::> page 122, Driver informat ion .
What is important for you to know
The adaptive cru ise cont ro l is set w ith system
spe cified lim its; that is, as a driver, you will
have to adjus t the speed and d istance to the
vehicle ahead in some instances
c:> page 126,
Driver intervention prompt
and c::> page 12 7,
System limitations .
A WARNING
Improper use of the adaptive cruise con
trol can cause collisions, other accidents
and se rious personal injury.
- Always remember that the adaptive cru ise contro l has limits -it will not slow
the vehicle down or ma inta in the set d is
tance when you dr ive towards an obsta
cle or someth ing o n or nea r the road that
is not mov ing, such as ve hicles stopped
in a tra ffic jam, a sta lled or d is ab led vehi
cle.
- Always remembe r that the adaptive
cru ise con tro l canno t detect a vehi cle
that is driving towards yo u in your traff ic
lane and that it cannot detect narrow
veh icles s uch as motorcycles and bicy
cles.
- Never drive at speeds that are too fast
for traffic, road and weather conditions.
- Never follow a vehicle so closely that yo u
cannot stop yo ur vehicle safely . The
adaptive cr uise control cannot s low or
brake the vehicle safely when you follow
a nother vehicle too close ly. Always re
membe r that the adaptive cruise control
has a braking powe r th at is o nly about
3 0% of the veh icle 's maxim um braking
abil ity. T he a uto mat ic br ak in g f unctio n
canno t bri ng the veh icle to a s udden or
emergency sto p. Always be prepared to
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has been made. If a measurement is not pos
sib le, the system cannot respond and wi ll not
react to a vehicle or someth ing else up ahead .
Open road
When the road is clear , the adaptive cru ise
control wo rks like cruise control.
It maintains
a constant target speed specified by the driv
er.
Driving in traff ic
If a slower vehicle d riving ahead is detected,
the adaptive cru ise contro l decelerates (wi thin
the limits of the system) ¢
page 126, Driver
intervention prompt
and ¢ page 127, System
limitations
to its speed and after adjusting,
tr ies to maintain the set distance from the ve
h icle ahead. The vehicle may temporarily drive
slower than the set speed while adjusting
¢ .&. in Description on page 115 .
If the vehicle in front accelerates, adaptive
cru ise control also accelerates up to the speed
that you have set.
I f the vehicle ahead slows to a stop, ACC will
slow yo ur vehicle down and to a complete
stop if this is possible w ith in the system's lim
its and capabilities. ACC will not make an
emergency stop . The text message
ACC off:
manual control! appears in the instrument
cluster display. Once the veh icle stops, you
must dep ress the brake pedal to prevent the
veh icle from mov ing forward or "creeping" .
D epressing the brake pedal turns
off ACC.
When the vehicle ahead accelerates yo u can
reactivate ACC
¢ page 120, as soon as your
vehicle has reached a speed of 1 mph (2 km/
h) .
Situat ion s requiring dri ver int ervention
In some situations you wi ll have to use the
footbrake to s low the vehicle down in order to
k eep a safe distance from vehicle in front of
you or to avo id a rear -end coll is ion. In this sit
uation, a symbol appears and a warning tone
sounds ¢
page 126 .
Adapti ve crui se control 117
Passing another vehicle
If you move into the passing lane and no ve hi
cle is detected ahead , the adapt ive cr uise con
trol acce le rates to the speed you have set and
maintains it.
Overr iding ACC
You can in cr ease yo ur speed at a ny time by
stepping on the accelera tor ped al. A fter you
release the accelerator peda l, the system ad
justs back down to the speed you prev ious ly
set .
Reducing stopp ing distance
If the radar sensor detects that the d istan ce
to the vehicle a head is less than de fined m ini
mum distance, the brakes are automatically
prepared fo r emergency braking by the d river .
The brake pads are moved very close to the brake d iscs without actually braking the vehi
cle. This brake assistant feature reacts more
quick ly to the dr ive r's brak ing, and also works
when adapt ive cruise control is
off . The stop
ping distance is reduced as a result of th is ad
vance brake p reparation . Th is fun ction does
not perform any emergency b rak ing mane u
vers by itse lf; the dr iver mus t always apply the
brakes.
A WARNING
If ACC initiates a braking maneuver, the brake pedal w ill be retracted. Inter ference
with the brake peda l can prevent ACC from
slowing the veh icle down and cause a
crash and serious personal injury.
- Never put anything in the driver's foot
well or let anyth ing fall into it. An object
in the driver's footwe ll can inte rfe re with
the peda ls and prevent the acce le rator
from being used to override ACC or pre
vent ACC from being switched
off when
the brake pedal is depressed and also
prevent the vehicle from being slowed
down or stopped .
- Onl y use floor mats that keep the area
aroun d the peda ls free and that can be
securely fastened to the footwell .
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a short time in the Information line
¢ page 124.
@ Tips
For safety reasons, the stored speed is
erased when the ignition or the ACC is
turned off.
Changing stored speed
Applies to vehicles : with adapt ive cruise control
The speed can be changed without touching
the accelerator or brake p edal .
Fig. 133 Contro l le ve r: Ch anging speed
Inc re as ing speed
• Press the leve r briefly upwards 0
9 fig . 133. USA models: the speed increases
by about 2.5 mph . Canada models : speed
will increase by one mark on the speedome
ter sca le .
• Press the lever upwards
0 and hold it . As
long as you ho ld the control switc h down,
the lig ht diode display in t he speedome ter
L E D display in the speedometer moves for
ward and the speed is increased.
R educing speed
• Press the lever briefly downwards Q . USA
models: the speed decreases by 2.5 mph .
Canada models: speed w il l decrease by one
mark on the speedometer scale.
• Press the lever downwards
O and hol d it.
As long as you hold the control sw itch down,
the lig ht diode display in the speedometer
LED display moves ba ckward and the speed
is reduced .
After releasing the control switch, the system regulates the speed to the va lue just set.
Ad apti ve crui se control 119
After each adjustment, the newly-set speed is
shown for a short time in the Information line
9 page 124.
_& WARNING
Improper use of the adaptive cruise con
trol features and inattent ion can lead to an
accident causing ser ious personal injury.
- It is dangerous to use the "RES UME" fea
ture when the prev iously set speed is too
high for existing road, traff ic or weather
conditions.
- Always read and heed the information
and WARNINGS
¢.&. in Description on
page 115 .
(D Tips
You can increase your speed at any time by
stepp ing on the accelerato r pedal. After
you release the acce lerator pedal, the sys
tem adjusts back down to the speed you
p reviously set . A new desired speed can be
stored a t any time by press ing the
!SE TI
b utton 9page 118, fig. 132 .
-
120 Adaptive cruise control
Turning adaptive cruise control off
temporarily
Applies to vehicles: with adaptive cruise co ntrol
In some situations it makes sense to turn
adaptive cruise control off temporarily.
®
Fig. 134 Con tro l lever : Turning adaptive cruise co ntro l
off tempo rarily
Fig. 135 D isplay in the speedomete r
Turning control off temporarily
"To shut off the control with the save func
tion, either depress the brake pedal, or
" Press the lever in the direction of the arrow
@ qfig .134.
How is the distance (time interval) set?
Ap plies to vehicles: with adaptive cruise co ntrol
Distance can be set in four stages.
Fig. 136 Contro l lever: Setting d istance
Reactivating control
"To resume the speed and distance control,
release the brake pedal and press the lever
in the direction of the arrow@.
Display in the speedometer
@ Current vehicle speed~ fig. 135
@ Saved speed
As long as a speed is saved the set desired
speed will be displayed in the LED display in
the speedometer by one or two illuminated
red light diodes . When the control function is
resumed the adaptive cruise control acceler
ates to reach the desired speed if no slower
vehicle ahead is detected.
&_ WARNING
Improper use of the adaptive cruise con
trol can cause collisions, oth er accidents
and serious personal injuries.
- Never resume the stored speed if the
speed is too high for prevailing road,
traffic or weather conditions .
(0 Tips
When the system is turned off temporari
l y, the speed set at that time is stored.
Increasing distance
-
" Push the slider switch once to the right 0
q fig. 136 . The distance current ly set is
shown for 3 seconds in the instrument clus
ter display.
" Push the slider switch
again to the right 0
to increase the distance by one step. ..,.