
%
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 (→ page 202). 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 202
Driving and parking 

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
th e 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 (→ page168).
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. 204
Driving and parking 

As a
result, Dis tance Pilot DISTRONIC may
nei ther give warnings nor inter vene in su ch
situations. #
Alw ays carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. &
WARNING Risk of accident due tolimi‐
te d de tectability of road users and traf fic
situations
Dis tance Pilot DISTRONIC cannot al ways
clear lyidentify other road users and complex
traf fic situations.
In these conditions, Dis tance Pil ot
DISTRONIC may:
R give an unnecessary warning and then
brake theve hicle
R neither give a warning nor inter vene
R accele rate or brake unexpectedly #
Continue driving with care and be ready
to brake, particular lyif Dis tance Pilot
DISTRONIC warnsyo u. &
WARNING Risk of accident due toinsuf‐
fi cient decele ration byDis tance Pilot
DISTRONIC
Dis tance Pilot DISTRONIC brakes your vehi‐
cle with up to50% of the maximum possible
braking po wer.If th is decele ration is not suf‐
fi cient, Dis tance Pilot DISTRONIC alerts you
with a visual and acoustic warning. #
Apply the brakes yourself in these situa‐
tions and try totake evasive action. &
WARNING Risk of accident due toDis‐
ta nce Pilot DISTRONIC still being activa‐
te d when you lea vethe driver's seat
If yo u lea vethe driver's seat while theve hicle
is being braked byDis tance Pilot DISTRONIC
only, it can rollaw ay inthefo llowing situa‐
tions:
R Ifth ere is a malfunction in the sy stem or
in the po wer supp ly. R
If Dis tance Pilot DISTRONIC is deacti va‐
te d with the cruise control le ver,e.g. by a
ve hicle occupant or from outside the
ve hicle.
R Ifth e electrics in the engine compart‐
ment, the battery or the fuses are tam‐
pered with.
R Ifth e battery is disconnected.
R Ifth eve hicle is accelerated, e.g. by a
ve hicle occupant. #
Alw ays deactivate Dis tance Pilot
DISTRONIC and secu retheve hicle to
pr eve nt it from rolling away before you
lea vethe driver's seat. &
WARNING Risk of accident due to
unknown stored speed
If yo u call up thestored speed and this is
lo we rth an your cur rent speed, theve hicle
decelerates.
If yo u do not kn owthestored speed, the
ve hicle could decelerate unexpectedl y.206
Driving and parking 

#
Take into account the tra ffic situation
before calling up thestored speed. #
Ifth estored speed is not known, store
th e desired speed again. &
WARNING Risk of accident due tounex‐
pec ted acceleration byDis tance Pilot
DISTRONIC
If Dis tance Pilot DISTRONIC no longer
de tects a vehicle in front, it may unexpect‐
edly accelerate tothe speed stored.
R This speed may be too high for a filter
lane or a slip road.
R If driving in theright lane, this speed may
be so high that you pass vehicles driving
on the left (in count ries where traf fic
drives on theright).
R If driving in the left lane, this speed may
be so high that you pass vehicles driving
on theright (in countri es where traffic
drives on the left). Alw
ays carefully obser vethe traf fic condi‐
tions and be ready tobrake at all times. &
WARNING Risk of accident due toDis‐
ta nce Pilot DISTRONIC pulling away auto‐
matically
If Dis tance Pilot DISTRONIC pe rforms an
automatic driving-off procedure, theve hicle
may accelerate unexpectedly.
Where necessar y,brake theve hicle yourself
and take evasive action. &
WARNING Risk of accident due toSpeed
Limit Pilot adapting theve hicle's speed
The speed adop tedby the Speed Limit Pilot
may be too high or incor rect in some individ‐
ual cases, su chas:
R inthewe t or in fog
R when towing a trailer
Ensure that the driven speed complies with
traf fic re gulations. Re
quirements:
R The vehicle has been star ted.
R The elect ric pa rking brake is released.
R Parking Pilot is not being used topark the
ve hicle or toexit from a parking space.
R ESP ®
is activated, but is not inter vening.
R The transmission is in position h.
R The driver's door, front passenger door and
there ar doors are closed.
R The engine bonnet is closed. Driving and parking
207 

#
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. 208
Driving and parking 

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 (→ page241).
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 209)
R Distance Pilot DISTRONIC (→ page 202) R
Speed Limit Pil ot (→page 202) St
eering Pilot Fu
nction of Steering Pilot
St eering 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. Driving and parking
209 

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. 212
Driving and pa rking 

*
NO
TEDama gefrom auto matic braking If
Ac tive Brake Assi st, Dis tance Pilot
DISTRONIC or the HOLD function is activa‐
te d, theve hicle brakes automatically in cer‐
ta in situations.
To avo id damage totheve hicle, deactivate
th ese sy stems in thefo llowing or similar sit‐
uations: #
During towing #
In a car wash Re
quirements:
R The vehicle is stationar y.
R The driver's door is closed or the seat belt on
th e driver's side is fastened.
R The engine is running or has been au tomati‐
cally switched off bythe ECO start/ stop
function.
R The electric parking brake is released.
R Distance Pilot DISTRONIC is not acti vated.
R Vehicles with automatic transmission:
The transmission is in position h,kori. Ac
tivating the HOLD function #
Dep ress the brake pedal and af ter a short
time depress fur ther until theë display
appears in the multifunction displa y. #
Release the brake pedal.
Deactivating the HOLD function #
Depress the accelerator pedal topull away.
or #
Depress the brake pedal until theë dis‐
play disappears from the multifunction dis‐
pla y.
The HOLD function is deactivated in thefo llow‐
ing situations:
R If Dis tance Pilot DISTRONIC has been acti va‐
te d.
R Vehicles with automatic transmission:
When transmission position jis selected.
R When theve hicle is secured with the electric
parking brake. In
thefo llowing situations, theve hicle is held by
th e transmission position jorby the electric
parking brake:
R When the seat belt is unfas tened and the
driver's door is opened.
R When the engine is switched off.
R When there is a malfunction in the sy stem or
if th e po wer supp lyis insuf ficient.
Ve hicles with manual transmission:
The Brake immediately message may also
appear in the multifunction displa y: #
Immedia tely depress the brake pedal firm ly
until thewa rning message disappears.
The HOLD function is deactivated.
A horn sounds at regular inter vals if you turn off
th e engine, remo veyour seat belt and open the
driver's door while the HOLD function is activa‐
te d. If you attem pttolock theve hicle, the horn
to ne becomes louder. The vehicle cannot be
loc ked until you ha vedeactivated the HOLD
function. Driving and parking
213