Page 113 of 342

The system is activated when the brake pedal
is depressed
for a few seconds. For this, the
veh icle must be standing in uphill driving di
rection .
After releasing the brake pedal, the brake
power is held for a
brief moment to prevent
the vehicle from rolling back when starting. At
this time, you can easily begin to move your
vehicle.
A WARNING
- If you did not begin moving immediately
after releasing the brake pedal, under
certain circumstances, the vehicle would
begin to roll backward. Depress the
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 -, switch
off the ignition and
make sure to remove the ignition key. Al
so engage the
parking brake to prevent
your vehicle from rolling unintentionally. This particularly applies if ch ildren are
left in the veh icle -danger of acc ident!
On the road 111
Cruise control
Switching the system on
The cruise control system makes it possible to
drive at a constant speed starting at 20 mph (30 km/h) .
®-
Fig. 124 Co ntro l l ever w ith set bu tton
Fig. 125 Disp lay : Se lected speed
.. Pull the lever to position @<=:> fig. 124 to
sw itch the system on .
.. Drive at the speed you wish to set.
.. Press button @to set that speed.
T he display
c::> fig . 125 will show the set speed.
The display may vary depending on the type of
display in your vehicle. The indicator light
tB;m~1~ (US model)/ . (Canadian model) will
also light up in the instrument cluster .
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 vehicle 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
Page 114 of 342

112 On the road
ice, fog, grave l, heavy rai n and hydro
planing) -risk of accident.
- Turn off the cruise control temporari ly
when entering turn lanes, highway exit
lanes or in construction zones.
- Please note that inadvertent ly "resting"
yo ur foot on the accelerator peda l causes
the cruise control not to brake. Th is is
because the cruise control is overridden
by the driver's accelerat ion .
- Never use the cru ise control when dr iv ing
off-road or on unpaved roads . The Cruise
control is intended for use on ly when the
vehicle is be ing operated on paved roads,
and is not suitable fo r use off-road o r on
unpaved roads.
({) Tips
The cruise control cannot mainta in a con
stant speed when driving dow nhill. The ve
hicle will acce le rate under its own we ight.
Downshift to a lower gea r or use the
brakes to slow down.
Changing speed
.,. Press lever in the 0 or 0 direction
Q page 111, fig. 124 to increase or decrease
yo ur speed.
.,. Re lease the lever to save that speed.
Change speed in increments of 1 mph (1 km/
h) by light ly pressing the lever. If you keep the
lever pressed down, you will alter your speed
i n 5 mph (10 km/h) increments.
You can a lso press the accelerato r peda l down
to increase your speed, e.g. if yo u want to
pass someone. The speed you 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 can preset your desired speed while the
vehicle is not moving.
.,. Turn on the ign ition .
.,. Pull lever into position
(D Q page 111,
fig . 124.
.,. Press the leve r in the
0 or 0 direction to
increase or decrease your speed.
.,. Release the leve r to save tha t speed .
This function makes it poss ible, for example,
to save the speed you want before dr iving on
the highway. Once on the h ighway, act ivate
the cr uise con trol by pulling the lever toward
(D .
Switching the system off
Temporary d eactivat ion
.,. Press the b rake peda l, or
.,. Press the lever into position @(not clicked
into p lace) Qpage 111, fig. 124, or
.,. Drive for longer than 5 min utes at more
than 5 mph (10 km/h) above the stored speed .
Switching off complete ly
.,. Press lever into position @(clicked into
p lace), or
.,. Switch the ignit ion off.
The system retains the saved speed if you de
activate the cruise control temporarily . To re
sume the saved speed, re lease the brake ped
al and pull the lever to pos it ion
(D .
Switching the ignition off erases the saved
speed.
__& WARNING "'---
You sho uld only ret urn to the saved speed
if it is not too fast for the c urrent traffic
conditions -risk of an accident!
Page 115 of 342

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 . 126 Front bu mper: Pos itio n of r adar sen sor (not
vi sibl e from out side)
Adapt ive cruise control can he lp ma ke driv ing
more relaxed and less tiring , particularly dur
i n g long trips on interstates or other hig hways
that are genera lly st raight. The system can al
so ass ist in stop and go traffic .
The adaptive cruise co ntrol works within a
speed range be tween 0 and 95 mph (150 km/
h). Set ACC to maintain a constant , legal trav
el speed between 20 and 95 mph (30 -150
km/h) that is appropriate for prevailing traffic
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 automati ca lly.
Adaptive 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
using the lever on the steering wheel column
c::> page 116, How is the speed stored? and
Ad apti ve crui se control 11 3
c::> page 118, How is the distance (time inter
val) set? .
Driver information
Important information is brought up in the
speedomete r and in the instr ument clus ter
display as the vehicle is being driven
c::> page 120, Driver informat ion .
What is important for you to know
The adaptive cru ise contro l is set w ith system
spe cified lim its; that is, as a driver, you will
have to adjus t the speed and distance to the
vehicle ahead in some instances
c:> page 124,
Driver intervention prompt
and c::> page 125,
System limitations.
A WARNING
Imp roper use of the adaptive cruise con
trol can cause collisions, other accidents
and serious 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 movi ng, 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 traffic
lane and that it cannot detect narrow ve
hicles suc h as motorcycles and bicycles .
- Never drive a t speeds that are too fast
for traffic, road and weather conditions .
- Never fo llow a vehicle so closely that you
cannot stop yo ur vehicle safely. The
adapt ive cruise control cannot s low or
brake the vehicle safely when yo u follow
a nother vehicle too close ly. Always re
member that the adaptive cruise control
has a braking power t hat is o nly about
30% of the veh icle's maxim um braking
ab ility. The automat ic bra king f unctio n
cannot bring the vehicle to a s udden o r
-
emerge ncy stop . Always be p repared to IIJ,.
Page 116 of 342

114 Adapti ve crui se co ntrol
brake and take evasive action to avoid
collisions and other accident situations.
- Never allow the closing speed between
you and other vehicles to be so high that
the adaptive cruise control may not be
able to slow your vehicle safely. If clos
ing speed is too high, you must apply the
brakes yourself to reduce the risk of a
rear-end crash.
- Never rest your foot on the accelerator peda l, especia lly when the adaptive
cruise control is be ing used. Pressu re on
the accelerator w ill override the ACC
braking function and prevent the brakes
from being applied when ACC detects a
situation when the brakes must be ap
plied.
- Never use adaptive cruise contro l when
you cannot drive safe ly at a steady
speed, including on city streets, on wind
ing roads or when road conditions are
poor (for example, on ice, gravel, in fog,
heavy rain or on wet roads that increase
the risk of hydroplaning) .
- The radar sensor's
vision can be reduced
by rain, snow and heavy road spray.
T hese and sim ilar condit ions can prevent
vehicles up a head from being accurately
detected and in some cases they may not
be detected at al l. Do not use ACC when
the radar sensors cannot accurately de
tect vehicles moving ahead of yo u in traf
fic.
- Always turn off adaptive cruise contro l
when entering turn lanes, exit lanes and
construction zones or in similar situa
t ions because the vehicle will automati
cally accelerate to the stored speed when
the road ahead is clear.
- To prevent unintended operation, always
switch ACC off when it is not be ing used.
(D Tips
- For safety reasons, the stored speed is
deleted when the ignition is turned off .
- The E lectronic Stab ility Contro l (ESC) and
the Anti-Slip Regulat ion (ASR) cannot be
deact ivated when the adaptive cruise control is switched on
. If the ESC and the
Anti-Slip Reg ulation (ASR) has been de
act ivated and you then switch on the
adaptive cru ise contro l, the ESC function
w ill also be act ivated automatically.
- Damage caused by accidents and some m inor collisions can affect the radar sen
sor settings and cause the system to
ma lf u nction or switch off completely.
- The radar sensor cover is heated. In win
ter conditions, you should st ill check be
fore dr iv ing to make su re it is free of ice
and snow. If necessary, clean the a rea
nea r the radar sensor ca refully
¢ fig. 126.
- To ensure that the radar sensor is not
bloc ked, foreig n objects (e.g. s tickers,
larger license plate mount s, add -on
par ts) mus t not cover the area near the
radar sensor ¢
fig. 126 . The area near
the radar sensor must not be pa inted, ei
ther.
- For Declaration of Compliance to United
States FCC and Ind ustry Canada reg ula
tions ¢
page 322.
How does adaptive cruise control work?
Applies to vehicles : wit h adaptive c ruise contro l
Vehicles traveling ahead are detected with
the aid of a radar sensor .
Fig. 1 27 Bas ic pri ncip le d iag ram : Radar sensor meas
urement range
Adaptive cruise control uses a rada r senso r in
t h e front of the vehicle ¢
fig. 12 7. The system
has limitat ions ¢
page 125. Things that are
not moving in your lane and in your direction
of travel will not be detected. The sensor
measures the distance to reflect ive surfaces ..,.
Page 117 of 342

that must have a certain size. The system re
sponds only after the distance measurement has been made. If a measurement is not pos
sible, the system cannot respond and w ill not
react to a vehicle or someth ing else up ahead.
Open road
When the road is clear, the adaptive cruise
contro l works like cr uise control. It maintains
a constant target speed specified by the driv
er.
Driving in traff ic
If a slowe r vehicle driving ahead is detec ted,
the adaptive cruise contro l decelerates (within
the limits of the system)
¢ page 124, Driver
intervention prompt
and c:> page 125, System
limitations
to its speed and after adjust ing,
tr ies to maintain the set distance from the ve
h icle ahead. The vehicle may temporarily drive
slower than the set speed while adjust ing
¢ & in Description on page 113 .
If the vehicle in front accelerates, adaptive
cruise control also accelerates up to the speed
that you have set.
If the vehicle ahead slows to a stop, ACC will
slow your 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 c ontrol!
appears in the instr ument
cluster display . Once the veh icle stops, you
must depress the brake pedal to prevent the
vehicle from moving forward or "creeping". Depressing the brake pedal turns
off ACC.
When the veh icle ahead accelerates you can
reactivate ACC
¢ page 118, as soon as your
ve hicle has reached a speed of 1 mph (2 km/
h) .
Situ ation s re quiring dri ver int ervention
In some s ituations you w ill have to use the
footbrake to s low the vehicle down in order to
keep 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 124.
Ada pti ve crui se control 115
Passing another vehicle
If you move in to the passing lane and no ve hi
cle is detected ahead, the adaptive 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 istance
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 driver .
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 interfe 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 .
- On ly use floor mats that keep the area
around the peda ls free and that can be
securely fastened to the footwell .
-
Page 118 of 342

116 Adapti ve crui se control
-Never drive with you r foot underneath
t h e brake pedal.
- Always read and heed the information
and WARNINGS
c:;, .&. in Description on
page 113.
A WARNING
- Never rely on the distance control fea
ture of ACC alone to prevent rear-end col
lisions . Always be prepared to brake and
take evasive action to avoid collisions and other acc ident situations.
- Never allow the clos ing speed between
yo u and other vehicles to be so h igh that
the adaptive c ruise control may not be
able to slow your vehi cle safe ly. If clos
ing speed is too high, you m ust app ly the
brakes yourself to reduce the risk of a
rear-end crash.
(D Tips
Please note that t he amo un t of a ccelera
tion the adapt ive cr uise control uses de
pends on the Distance setting selected .
DISTANCE 1 g ives you acce lerat ion that is
dynamic and sporty. DISTANCE 4, on the
other hand, gives more moderate acce lera
tion. For more information about the time
intervals
c:;, page 118 , How is the distance
(time interval) set? .
-Please note that if the adaptive cruise
control has begun braking the vehicle
and the d river chooses to brake the vehi
cle add itiona lly, t he b rakes may fee l
"h ard". This is simply due to the pressure
b uild- up of the initial b raking.
- Adaptive cruise control is sw itched off af
te r pressing the footbrake. The speed
saved u p this poin t can be resumed. To
res ume the saved speed, release the
b rake pedal and p ull th e control leve r to
ward you
c:;, page 118 , Turning adaptive
cruise control off temporarily .
Switching the system on and off
Applies to vehicles: with adaptive cruise contro l
Fig. 128 Control lever: Sw itching on and off
S w itching the sy stem on
.,. Pull the lever to position (D c::> fig. 128 .
Switching the system off
.,. Pres s th e lever to pos it ion @ (latched).
How is the speed stored?
Applies to vehicles: wit h adaptive cruise contro l
,' ts ~:_" ';;;", ' , E Sl'EEO CANCELU
. T ,0. -ON ... . RESUME~
Fig. 1 29 Co ntrol lever: Storing s peed
With the sy stem switched on the speed is
stored as follows:
• Drive at the speed you want .
.,. Press the
ISET I button c:;, fig. 129 to store
the desired speed.
After the
ISE TI button is re leased, the current
speed is stored and maintained . If you are
driv ing at a speed below 20 mph (30 km/ h),
the minimum speed setting of 20 mph
(30 km/h) will be set .
The saved speed is now shown in the LED d is
play in the speedometer by one or two illumi
nated red light d iodes
c::> page 121. At the
same time, the saved speed is also shown for ..,.
Page 119 of 342

a short time in the Information line
¢ page 122.
@ 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 adaptive cruise co ntrol
The speed can be changed without touching
the accelerator or brake pedal .
Fig. 130 Contro l leve r: Changing speed
Inc re as ing speed
• Press the lever briefl y upwards 0
9 fig. 130. 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 backward 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 11 7
After each adjustment, the newly-set speed is
shown for a short time in the Information line
9page 122 .
_& 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
113 .
(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
!SET I
button 9page 116, fig. 12 9.
-
Page 120 of 342

118 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. 131 Con tro l lever : Turning adapt ive cruise co ntro l
off tempo rarily
Fig. 132 D isplay in the speedomete r
Turning control off temporarily
" To shut off the control with the save func
t ion, either depress the brake pedal, or
" Press the lever in the direction of the arrow
@qfig .131 .
How is the distance (time interval) set?
Applies to vehicles: with adaptive cruise co ntrol
Distance can be set in four stages.
Fig. 133 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. 132
@ 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, other 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. 133 . 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. ..,.