
%
Onvehicles with a segment display in the
speedome ter,th e segments extending from
th e cur rent stored speed tothe end of the
scale light up. If you ha veactivated the per‐
manent limiter and a speed is stored, the
segments extending up tothestored speed
light up.
% Ifyo u per form a kickdown, theva riable lim‐
iter is swit ched topassive mode. The varia‐
ble limiter is operational again once the
speed drops below thestored speed.
% Ifyo u brake, deactivate ESP ®
or if ESP ®
inter venes, cruise control is deacti vated. The
va riable limiter is not deactivated.
When you swit choff theve hicle, the last
speed stored is cleared.
Pe rm anent limi ter
If yo u wish tolimit the speed permanently to a
specific value (e.g. for driving on winter tyres),
yo u can set this speed with the permanent lim‐
iter.
Yo u do this by limiting the speed toava lue
between 160 km/h and 240 km/h in the multi‐
media sy stem (→ page193). Shortly before
the set speed is reached, it
appears in the multifunction displa y.When you
confirm the message with %, display mes‐
sages no longer appear until you swit choff the
ve hicle. The speed will only be displa yed again
once theve hicle has been restar ted.
The permanent limiter does not switch topas‐
sive mode even du ring kickdown and the driven
speed remains below the set speed.
Setting the speed limit for winter tyres
Multimedia sy stem:
, Vehicle .
î Vehicle settings .
Win-
ter tyres limit #
Select the speed or deactivate the function. Distance Pilot DISTRONIC
Fu
nction of Distance Pilot DISTRONIC
Dis tance Pilot DISTRONIC:
R Maintains the set speed and accelerates or
decelerates theve hicle if the dis tance from
th eve hicle in front permits. R
Assists you in main taining the dis tance from
th eve hicle in front and can bring your vehi‐
cle toast andstill if necessar y.
R Brakes your vehicle with up to50 % of the
maximum possible braking po wer.If greater
decele ration pe rformance is requ ired, a vis‐
ual and acoustic warning is given and you
must then inter vene yourself.
R Vehicles with Driving Assistance Pack‐
age, Parking Pilot and COMAND Online:
When driving in stop-s tart traf fic, the driver is
suppor tedby an extended, au tomatic restart
in traf fic jams.
R Vehicles with Driving Assistance Pack‐
age: Responds in urban speed ranges tosta‐
tionary vehicles (e xcept bicycles, mo torcy‐
cles and pede strians) if conditions are suf fi‐
cient toenable de tection.
If yo ufa ilto adapt your driving style, Dis tance
Pilot DISTRONIC can nei ther reduce therisk of
an accident nor override the la wsof ph ysics.
Dis tance Pilot DISTRONIC cannot take into
account road, weather or traf fic conditions. Dis‐
ta nce Pilot DISTRONIC is only an aid. You are Driving and parking
19 3

Pulling
the cruise control le ver will set the dis‐
pla yed speed limit as the speed, pr ovided that:
R The Speed Limit Pilot has been activated in
the multimedia sy stem and
R Distance Pilot DISTRONIC has been acti va‐
te d.
If no speed limit is displa yed when the le ver is
operated, the speed set bythe driver is adop ted.
Drive prog ram
The DYNA MIC SELECT switch allo wsyouto
ch ange the driving style of Dis tance Pilot
DISTRONIC. Depending on which drive program
is selected, the driving characteristics can be
ge ared towa rds fuel econom y,comfort or
dynamic per form ance (→ page160).
Sy stem limits
Dis tance Pilot DISTRONIC is acti veinthe
0 km/h to200 km/h speed range.
Ve hicles with the Driving Assistance Pack‐
age: Distance Pilot DISTRONIC is acti veinthe
0 km/h to210 km/h speed range. The sy
stem may be impaired or may not function
in thefo llowing situations:
R In sno w,rain, fog, heavy spr ay, if there is
gl are, in direct sunlight or in great lyvarying
light conditions.
R Ifth e windscreen in the area of the camera is
dirty, mis ted up, damaged or co vered.
R Ifth era dar sensors are dirty or co vered.
Do not use Dis tance Pilot DISTRONIC in thefo l‐
lowing situations:
R Inroad and traf fic conditions whi chdo not
allow youto maintain a cons tant speed, e.g.
in heavy traf fic or on winding roads.
R On slippe ryroads. Braking or accelerating
can cause the drive wheels tolose traction
and theve hicle could then skid.
R When there is poor visibility, e.g. due tofog,
heavy rain or sno w.
R In multi-s torey car par ksor at tollst ations.
R Onroads with steep uphill or downhill gradi‐
ents. Ti
ps
Pa y particular attention in thefo llowing traf fic
situations. In such situations, brake if necessar y.
Dis tance Pilot DISTRONIC is then deactivated:
R When cornering, entering and exiting a bend.
R When not driving in the cent reofthe lane.
R When other vehicles are changing lane.
R Ifth ere are nar row vehicles.
R Ifth ere are obs tacles and stationary vehi‐
cles.
R Ifth ere are crossing vehicles, pedestrians,
mo torcyc lists or cyclists. Driving and parking
19 5

#
Ifth e LIM indicator lamp is lit: toselect Dis‐
ta nce Pilot DISTRONIC 1.#
Remo veyour foot from the accelerator pedal. #
Tostore cur rent speed 3.
Yo ur vehicle adapts its speed tothat of the
ve hicle in front, but only up tothestored
speed.
or #
Tocall up stored speed 3. #
OrOn vehicles with Driving Assistance
Pa ckage and Traf fic Sign Assis t:If Speed
Limit Pilot in the multimedia sy stem and Dis‐
ta nce Pilot DISTRONIC are acti vated, the dis‐
pla yed speed limit is adop ted, if available 3. #
Todeactivate Dis tance Pilot DISTRONIC 2. #
Toinc rease 4orreduce 5the speed. #
Toreduce 6or increase 7the specified
dis tance from theve hicle in front.
Pulling away with Distance Pilot DISTRONIC
Re quirement
A speed has been pr eviously stored. #
Remo veyour foot from the brake pedal. #
Brief lypull the cruise control le verto wa rds
yo u3. Driving and parking
19 9

or
#
Accelerate brie fly.
Yo ur vehicle pulls away and adapts its speed
to that of theve hicle in front. If no vehicle is
de tected in front, your vehicle accelerates to
th e set speed.
Ad opting the speed limit as thesto red speed
Re quirements:
R Speed Limit Pilot is activated in the multime‐
dia sy stem (→ page 231).
R Distance Pilot DISTRONIC is acti vated.
R The sy stem de tects a traf fic sign indicating a
speed limit. #
Brie fly pull the cruise control le verto wa rds
yo u3.
The displ ayed speed limit is adop ted as the
st ored speed. Your vehicle adapts its speed
to that of theve hicle in front, but only up to
th estored speed. If Speed Limit Pilot is acti‐
va ted, any de tected changes in the speed
limit are adop tedby the sy stem. Collision
warning
If Dis tance Pilot DISTRONIC is unable tosuf fi‐
ciently decele rate theve hicle in order topreve nt
it from approa ching theve hicle in front, you will
be warned visually and acousticall y.An intermit‐
te nt wa rning tone will then sound and the dis‐
ta nce warning lamp will light up in the instru‐
ment clus ter. #
Brake immediately in order toinc rease the
dis tance from theve hicle in front.
or #
Take evasive action pr ovided it is safe todo
so. Fu
nction of DRIVE PIL OT The DRIVE PI
LOT function is available only
on vehicles with the Driving Assistance
pa ckage.
DRIVE PIL OTincludes thefo llowing driving and
driving saf ety sy stems:
R Steering Pilot with Active Lane Change Assi st
( → page 200)
R Distance Pilot DISTRONIC (→ page 193) R
Speed Limit Pilot (→ page 193) Ste
ering Pilot Fu
nction of Steering Pilot
Ste ering Pilot is only available forve hicles
with the Driving Assistance Package.
R Steering Pilot is operational at speeds up to
21 0 km/h and helps youto stay inthe cent re
of the lane bymeans of moderate steering
inter ventions.
R It uses as a refere nce theve hicle in front or
th e lane markings, depending on the driven
speed.
R Steering Pilot requ ires you as the driver, to
ke ep your hands on thesteering wheel at all
times so that you are able tointer vene at any
time tocor rect the course of theve hicle and
ke ep it in lane.
R Steering Pilot can be overridden at any time
by steering theve hicle yourself.
R Ifth e sy stem de tects that there are no lane
markings, it uses theve hicle ahead as a ref‐
erence up toa speed of 130 km/h. 200
Driving and parking

R
When the sy stem is actively steering, the
è symbol is shown in green in the multi‐
function displa y.
St eering Pilot sy stem limits
St eering Pilot has a limited steering torque for
lateral guidance. In some cases, thesteering
inter vention is not su fficient tokeep theve hicle
in the lane.
If de tection of lane markings and vehicles ahead
is impaired, Steering Pilot switches topassive
mode. The sy stem pr ovides no support in this
case. During the transition from the active to
passive status theè symbol is shown as
enlar ged and flashes yello w. Once the sy stem is
passive theè symbol is gr eyed out in the
multifunction displa y.
The sy stem may be impaired or may not function
in thefo llowing situations:
R Ifth ere is poor visibility, e.g. due toinsuf fi‐
cient illumination of thero ad, or due tosno w,
ra in, fog or spr ay.
R Ifth ere is glare, e.g. from oncoming traf fic,
di re ct sunlight or reflection from other vehi‐
cles (e.g. if thero ad sur face is wet). R
Ifth e windscreen is dirty, mis ted up, dam‐
aged or co vered, for ins tance byast icke r,in
th e vicinity of the camera.
R If no, or se veral, unclear lane markings are
present for one lane, e.g. in a construction
area.
R Ifth e lane markings are wornaw ay, dark or
co vered up, e.g. bydirt or sno w.
R Ifth e dis tance totheve hicle in front is too
small and the lane markings thus cannot be
de tected.
R Ifth e lane markings change quickl y,e.g.
lanes branch off, cross one ano ther or
mer ge.
R Ifth ero ad is nar rowand winding.
R Ifth ere are highly variable shade conditions
on thero ad.
R Ifth ere are obs tacles su chas traf fic guid‐
ance posts on the lane or projecting out into
th e lane.
The sy stem does not pr ovide assis tance in the
fo llowing conditions:
R Onvery sharp bends. R
When towing a trailer.
R Ifyo u actively change lane without swit ching
on the turn signal indicator.
R Ifyo u swit chon the turn signal indicator and
th e conditions for activating Active Lane
Change Assi stare not fulfilled.
Note s onSteering Pilot
St eering Pilot is only an aid. You are responsible
fo rth e dis tance totheve hicle in front, forve hi‐
cle speed, for braking in good time and forst ay‐
ing in lane. Before changing lanes, make sure
th at the neighbouring lane is free (shoulder
view).
Ac tive Lane Change Assi st
% The availability of thefo llowing function is
countr y-dependent.
St eering Pilot remains active even if the turn sig‐
nal indicator is switched on. Steering Pilot then
assists the driver when changing lanes byapply‐
ing steering torques toinitiate the lane change. Driving and parking
201

Assi
stance when changing lanes is pr ovided if all
th efo llowing conditions are me t:
R You are driving on a mo torw ay or high-speed
multi-lane major road with multiple lanes in
th e direction of tr avel.
R The neighbouring lane is free and separated
bya broken lane marking.
R The driven speed is between 80 km/h and
18 0 km/h.
R The turn signal indicator is switched on for
longer than two seconds.
If th e sy stem is impaired, Active Lane Change
Assi stmay be inter rupte d. If an inter ruption
occurs, display 1appears in the multifunction
display along with a warning tone prom pting you
to take control of theve hicle. Ste
ering and contact de tection
St eering Pilot requ ires you as the driver, tokeep
yo ur hands on thesteering wheel at all times so
th at you are able tointer vene at any time tocor‐
re ct the course of theve hicle and keep it in lane.
The driver must expect a change from active to
passive mode or vice versa at any time.
If yo u are not steering yourself or if you take
yo ur hands off thesteering wheel for a pro‐
longed period of time, the sy stem will, depend‐
ing on the situation, firs t alert you with a visual
wa rning. 1appears in the multifunction displa y.
If yo u are still not steering theve hicle yourself or
if yo u ha venot take n hold of thesteering wheel,
a wa rning tone sounds in addition tothewa rning message
toremind youto take control of the
ve hicle.
The warning message does not appear or disap‐
pears if one of thefo llowing conditions are me t:
R The driver steers theve hicle.
R The driver presses a steering wheel button or
operates Touch Control.
Ac tive Eme rgency Stop Assist
If th e driver continues toigno rethe acoustic
wa rning, Dis tance Pilot DISTRONIC reduces the
speed. If the driver still does not respond, the
ve hicle is decelerated in stages toast andstill.
The driver can cancel the deceleration at any
time byper form ing one of thefo llowing actions:
R Steering
R Braking or accelerating
R Pressing a steering wheel button or operat‐
ing Touch Control
R Activating or deacti vating Steering Pilot or
Dis tance Pilot DISTRONIC
The driver mu stbe ready totake control of the
ve hicle at any time. 202
Driving and parking

Ac
tivating Steering Pilot
Re quirements:
R ESP ®
must be switched on, but not inter ven‐
ing.
R Distance Pilot DISTRONIC mu stbe activated. #
If indicator lamp 1is off: press button 2. Information on Hill
Start Assist Hill
Start Assist holds theve hicle when pulling
aw ay on a hill under thefo llowing conditions:
R Vehicles with automatic transmission:
The transmission is in position hork.
R The electric parking brake is released. &
WARNING Risk of accident and inju ry
caused bytheve hicle rolling away
Af ter a short time, Hill Start Assist no lon ger
holds theve hicle and it can rollaw ay. #
Therefore, swiftly mo veyour foot from
th e brake pedal tothe accelerator
pedal. Ne ver attem pttolea vetheve hi‐
cle if it is being held byHill Start Assist. HOLD function
HOLD function
The HOLD function holds
theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, such as when pulling away on steep
slopes. Sy
stem limits
The incline must not be greaterth an 30%.
Ac tivating/deactivating the HOLD function &
WARNING Risk of an accident due tothe
HOLD function being active when you
lea vetheve hicle
If yo u lea vetheve hicle while only the HOLD
function is braking theve hicle, theve hicle
can rollaw ay inthefo llowing situations:
R Ifth ere is a malfunction in the sy stem or
in the po wer supp ly.
R Ifth e HOLD function is deactivated by
depressing the accelera tor pedal or the
brake pedal, e.g. byave hicle occupant.
R Ifth e electrics in the engine compart‐
ment, the battery or the fuses are tam‐
pered with.
R Ifth e battery is disconnected. #
Alw ays deactivate the HOLD function
and secure theve hicle against rolling
aw ay before leaving theve hicle. Driving and parking
203

The
vehicle is lo wered again in thefo llowing sit‐
uations:
R When driving fasterthan 100 km/h.
R When driving between 80 km/h and
100 km/h for appro ximately thre e minutes.
R After selecting a drive program using the
DY NA MIC SELECT switch.
The vehicle is adjus tedto the height of the last
active drive program.
Lo weri ngtheve hicle #
Press button 1.
Indicator lamp 2goes out. The vehicle is
adjus tedto the height of the last active drive
program. Pa
rking Assist PARKTRONIC Fu
nctions of Parking Assist PARKTRONIC Pa
rking Assist PARKTRONIC is an electronic
parking assi stance sy stem with ultrasound. It
monitors the area around your vehicle using six
sensors 1inthe front bumper and six sensors
in there ar bumper. Parking Assist PARKTRONIC
indicates visually and audibly the dis tance
between your vehicle and an object.
Pa rking Assist PARKTRONIC is on lyan aid. It is
not a substitute foryo ur attention tothe sur‐
ro undings. The responsibility for safe manoeu‐
vring and parking remains with you. Make sure
th at there are no persons, animals or objects in th
e manoeuvring area while manoeuvring and
parking in/exiting parking spaces.
In thest andard setting, an intermit tent wa rning
to ne sounds from a di stance of appr oximately
0.3 m toan obs tacle. A continuous tone sounds
from a di stance of appr oximately 0.2 m. You can
set thewa rning tone in the multimedia sy stem
so that it will sound earlier at a greater dis tance
of appr oximately 1.0 m (→ page211).
If Pa rking Assist PARKTRONIC is deacti vated,
Pa rking Pilot is una vailable.
Pa rking Assist PARKTRONIC displ ayinthe
mu ltimedia sy stem
If Pa rking Pilot is deactivated and an obs tacle is
de tected in the path of theve hicle, a pop-up win‐
dow forPa rking Assist PARKTRONIC 1appears
in the multimedia sy stem at speeds up to
appr oximately 10km/h. 208
Driving and pa rking