Page 161 of 337

#
Toactivate/deactivate: pressthe0076 but‐
to n.
The di stance warning function and the auton‐
omous braking function of Active Brake Assi st
are deactivated or activated.
When the functions are deactivated, the00D4
symbol appears in the Assis tance graphic in
th e multifunction displa y.
The next time theve hicle is star ted, Ac tive Brake
Assi stis automatically activated. Fu
nction of Adaptive Brake Lights Ad
aptive brake lights warnfollowing traf fic in an
emergency braking situation with th efo llowing
signals:
R Byflashing the brake lamps
R By activating the hazard warning lights
If th eve hicle is braked sharply from speeds
abo ve50 km/h, the brake lamps flash rapidl y.
This pr ovides traf fic tr ave lling behind you with an
eve n more noticeable warning.
If th eve hicle is tr avelling at speeds of more than
70 km/h at the beginning of the brake applica‐
tion, the hazard warning lights switch on once the
ve hicle is stationar y.When pulling away again,
th e hazard warning lights switch off automatically
at appr oximately 10km/h.
Yo u can also swit choff the hazard warning lights
using the hazard warning button (/ page107). Cruise control and limiter
Fu
nction of cruise control
Cruise cont rol accelerates and brakes theve hicle
automatically in order tomaintain a pr eviously
st ored speed.
If yo u accelerate toove rtake, forex ample, the
st ored speed is not dele ted. If youre mo veyour
fo ot from the accelerator pedal af terove rtaking,
cruise control will resume speed regulation back
to thestored speed.
Yo u operate cruise control using the cruise con‐
trol le ver.Yo u can store any speed abo ve
30 km/h.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 153). Sy
stem limits
Cruise control may be unable tomaintain the
st ored speed on uphill gradients. The stored
speed is resumed if the uphill gradient evens out
and theve hicle's speed does not fall below
30 km/h.
On long and steep downhill gradients, you should
ch ange down toa lo werge ar in good time. Take
particular no teofthis when driving a laden vehi‐
cle. By doing so, you will make use of the
engine's braking ef fect. This will take some of the
st ra in off the brake sy stem and pr eventthe
brakes from overheating and wearing tooqu ickl y.
If yo uch ange wheel size on your vehicle, check it
is assigned tothe cor rect wheel size catego ry
( / page 258). If the category is changed without
re coding the cont rol units in theve hicle, the func‐
tioning of cruise cont rol may be impaired.
Do not use cruise control in thefo llowing situa‐
tions:
R in traf fic situations whe refrequent speed
ch anges are required, e.g. in heavy traf fic or
on winding roads
R off-road or on con stru ction sites
R on slippe ryor slick roads, as the drive wheels
can lose traction when accelerating and the
ve hicle can then skid
R ifth ere is poor visibility
Fu nction of the limiter
The limiter restricts the speed of theve hicle. To
adjust tothe set speed quickl y,the limiter applies
th e brakes automaticall y.
Yo u can limit the speed as follo ws:
R Variable: for speed restrictions, e.g. in built-
up areas.
R Perm anen t:for long-term speed restrictions,
e.g. when driving in winter tyre mode.
Yo u can operate theva riable limiter with the
cruise control le ver.Yo u can store any speed
abo ve30 km/h. You can also per form settings
while theve hicle is stationary if theve hicle has
been star ted.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 153).
If yo uch ange wheel size on your vehicle, check it
is assigned tothe cor rect wheel size catego ry
( / page 258). If the category is changed without
re coding the cont rol units in theve hicle, the func‐
tioning of the limiter may be impaired. 15 8
Driving and pa rking
Page 162 of 337

Kickd
own
If yo u depress the accelerator pedal be yond the
pressure point (kickdown), the limiter switches to
passive mode. The multifunction display then
sho wsa message and you are able toexceed the
st ored speed.
Af ter completion of kickdown, theva riable limiter
is activated again in thefo llowing situations:
R Ifth e driven speed drops below thestored
speed.
R Ifth estored speed is called up.
R Ifyo ustore a new speed.
Operating cruise control or theva riable lim‐
iter
Re quirements
Cruise control
R Cruise control is selected.
R The parking brake has been released.
R ESP ®
is activated, but may not inter vene.
R The driving speed is at least 30 km/h.
R The clutch pedal is not depressed.
R The brake pedal is not depressed.
Re quirements
Va riable limiter
R The vehicle has been star ted.
R The variable limiter is selec ted.
Switching between cruise control and theva r‐
iable limiter #
Push the cruise cont rol le ver in the direction
of ar row5.
R LIM indicator lamp 2off: cruise control
is selected.
R LIM indicator lamp 2lit:theva riable lim‐
iter is selec ted.
St oring and maintaining the cur rent speed #
Brief lypress the cruise cont rol le ver up 1or
down 4.
The cur rent speed is stored and theve hicle
maintains this speed (cruise control) or does
not exceed it (variable limiter).
When you activate cruise control, thestored
speed is brief lyshown in thete xt field of the mul‐
tifunction displa y.The multifunction display also
sho ws th e00B2 symbol and thestored speed.
When you activate theva riable limiter, the multi‐
function display brief lysho ws th estored speed.
The multifunction display also sho ws the00CB
symbol and thestored speed.
% Fo
rve hicles with Active Dis tance Assi st
DISTRONIC, the segments between thest art
of the scale and thestored speed also light
up in the speedome ter dial.
Calling up thesto red speed &
WARNING Risk of accident due tostored
speed
If yo u call up thestored speed and this is
lo we rth an your cur rent speed, theve hicle
decelerates. #
Take into account the tra ffic situation
before calling up thestored speed. #
Brief lypull the cruise cont rol le ver in direction
3.
The last stored speed is called up and the
ve hicle maintains this speed (cruise control)
or does not exceed it (variable limiter).
If th e last stored speed has pr eviously been
dele ted, the cur rently driven speed is stored.
% When
you swit choff theve hicle, the last
speed stored is cleared.
Increasing or reducing the speed #
Press the cruise cont rol le ver up 1or down
4 asfar as the 1st pressure point.
The stored speed is increased or reduced by
1 km/h.
or Driving and parking
15 9
Page 163 of 337

#
Press the cruise cont rol le ver up 1or down
4 beyond the 1st pressure point.
The stored speed is increased or reduced by
10 km/h.
If yo u ha veset Miles asthe unit forth e digital
speedome ter,yo u can main tain any speed from
20 mph (cruise contro l) or set it asthe limit
speed (variable limiter). You can then set the limit
speed in increments of 1 mph and 5 mph.
Deactivating cruise control or theva riable
limiter #
Brief lypress the cruise cont rol le verfo rw ards
6.
or #
Brief lypush the cruise cont rol le ver in the
direction of ar row5.
The 00B2 or00CB symbol and thestored
speed in the multifunction display then go
out.
% Cruise cont rol is deactivated in thefo llowing
situations:
R you apply the brakes.
R you drive below a speed of 30 km/h.
R you shift the transmission toposition 005C.
R ESP ®
inter venes.
In these cases theva riable limiter remains
activated.
If yo u deactivate ESP ®
, or ABS or ESP ®
is
malfunctioning, cruise control and the limiter
are deactivated.
% Ve
hicles with manual transmission: ifthe
engine speed is very low, cruise control or
th e limiter is deactivated. When the transmis‐
sion is in neutral or the clutch pedal is
depressed for longer than six seconds, cruise
control is deactivated.
If cruise control automatically deactivates, a
wa rning tone sounds and theCruise control off
message appears brief lyin the multifunction dis‐
pla y.
Information on the permanent limiter
% The permanent limiter is only
available in cer‐
ta in countries.
If yo u wish tolimit theve hicle speed permanently
to a specific value (e.g. for driving in winter tyre
mode), you can set this speed with the perma‐
nent limiter. Yo
u can permanently limit the speed toava lue
between 160 km/h and the maximum permissi‐
ble speed (/ page160).
If yo u accelerate theve hicle using the accelera tor
pedal, a message with thestored speed is shown
in the multifunction display shortly before the set
limit speed is reached.
The permanent limiter remains active even if the
va riable limiter is deactivated. The permanent
limiter does not swit chtopassive mode even dur‐
ing kickdown and the driven speed remains
below the set speed.
Setting the limit speed for winter tyres
On-board compu ter:
4 00E2 5
Settings 5
Vehicle
5 Limit speed (winter tyres) #
Change the setting and confirm using the
0076 button.
By selecting Offyou swit choff the permanent
limiter. DSR (Downhill Speed
Regulation) Note
s on DSR
DSR supports you when driving downhill. DSR
main tains a set speed foryo u on downhill gradi‐
ents byapplying the brakes as requ ired. Main‐
ta ining the speed is dependent on thero ad sur‐
fa ce conditions and the downhill gradient and
cann ottherefore be guaranteed in all situations.
Obser vethe no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 153).
Yo u can set the speed tobetween 4 km/h and
18 km/h using the brake and accelerator pedals
or the cruise cont rol le ver.
DSR au tomatically controls in thefo llowing situa‐
tions:
R ifth eve hicle is stationar y,or its speed is less
th an 4 km/h , the speed is set to4 km/h or it
is set tothe minimum speed forth ere spec‐
tive gear range.
R ifyo u drive fasterthan 18 km/h off-road, DSR
switches tostandby mode. DSR remains acti‐
va ted, but does not brake automatically.
R ifyo u drive downhill slo werth an 18 km/h,
DSR sets the speed tothe pr eviously set
speed.
R ifyo u drive fasterthan 45 km/h, DSR
swit ches off automaticall y. 16 0
Driving and pa rking
Page 164 of 337

Ac
tivating/deactivating DSR
Re quirements
R you are driving at 40 km/h or theve hicle is
st ationar y.
Ac tivating DSR Yo
u can activate DSR when theve hicle is station‐
ary or moving. #
Press the1 button.
The indicator lamp in the button is lit when
DSR is switched on. #
Brake or accelerate theve hicle tothe desired
speed between 4 km/h and 18km/h. #
Release the brake or accelera tor pedal.
The cur rent speed is stored. When stationar y,
4 km/h or the minimum possible speed for
each gear range is stored. DSR maintains the
st ored speed on the downhill gradient and
brakes automaticall y.
When DSR is activated and theve hicle pulls
aw ay, accelerates or brakes on an incline, the
speed set cor responds tothe speed at which the
accelerator or brake pedal is released or the
cruise control le ver is operated during DSR regu‐
lation. This is only the case if you are not driving
fast erthan 18 km/h. DSR
status display in the on-board computer
R DSR is activated:
- 0092 DSRandthe set speed appear in
th est atus area of the on-board computer.
R DSR is activated, but is not inter
vening:
- You are driving between 18km/h and
45 km/h.
- 0092 DSRis not shown in thest atus area
of the on-board computer. In addition, the
0092 - --km/h messa geappears brief ly.
DSR is in standby mode.
R DSR is inactive:
-
As soon as youex ceed a speed of
45 km/h.
- 0092 DSRis not shown in thest atus area
of the on-board computer. In addition, the
0092 Offmessage appears briefly.
Setting the speed while driving downhill
Yo u can set the speed tobetween 4 km/h and,
depending on thege ar range, up to18 km/h
using the brake and accelera tor pedals or the
cruise control le ver. #
Brake or accelerate theve hicle tothe desired
speed on the downhill gradient. #
Release the brake or accelera tor pedal.
The cur rent speed is stored.
or #
During a DSR regulation, brief lypress the
cruise control le ver up 1or down 2tothe
fi rs t pressure point.
The la st stored speed is increased or reduced
in increments of 1 km/h. Driving and parking
161
Page 165 of 337

%
It may be a moment before
theve hicle starts
to brake tothe set speed. Take this delay into
account when setting the speed with the
cruise control le ver.
Deactivating DSR #
Press the1 button.
The indicator lamp in the button goes out.
% If
yo u drive fasterthan 45 km/h, the DSR
switches off automaticall y.Ac
tive Di stance Assist DISTRO NIC Fu
nction of Active Di stance Assist DISTRO NIC
Ac tive Dis tance Assi stDISTRONIC maintains the
set speed on free-flowing roads. If vehicles ahead
are de tected, the set dis tance is maintained, if
necessa ryuntil theve hicle comes toa halt. The
ve hicle accelerates or brakes, depending on the
dis tance totheve hicle in front and the set speed.
Speed and dis tance are set and stored on the
st eering wheel. The speed can be set in thera nge
between 20 km/h and 200 km/h.
Other features of Active Dis tance Assi st
DISTRONIC:
R Depending on the preselected dis tance,
DISTRONIC inter venes ei ther dynamically
(short dis tance) or tosave fuel (long dis‐
ta nce).
R Depending on theve hicle mass de tected, the
dynamics of the DISTRONIC inter vention are
re duced.
R The driving style is adap ted depending on the
drive prog ram selected.
R Accele ration tothestored speed is initiated if
th e turn signal indicator is switched on to
ch ange totheove rtaking lane. Obse
rveth e no tes on driving sy stems and your
re sponsibility; you may otherwise failto recog‐
nise dangers (/ page 153).
Sy stem limits
The sy stem may be impaired or may not function
in thefo llowing ins tances, forex ample:
R in sn ow,ra in, fog or heavy spr ay
R ifth ere is dirt on thera dar sensors or they
are co vered
R ifth ere is inter fere nce from radar sources or
stro ngradar reflections, forex ample in multi-
st or ey car pa rks
R in traf fic situations whe refrequent speed
ch anges are required, e.g. in heavy traf fic or
on winding roads or off- road
R onroads with steep downhill or uphill gradi‐
ents
R on winding roads
The sy stem cann otdetect stationary objects
unless these wereprev iously de tected as moving.
In addition, on slippery or slickroads, braking or
accelerating can cause one or se veral of the drive
wheels tolose traction and theve hicle can then
skid.
Do not use Active Dis tance Assi stDISTRONIC in
th ese situations. &
WARNING Risk of accident from acceler‐
ation or braking byActive Dis tance Assi st
DISTRONIC
Ac tive Dis tance Assi stDISTRONIC may accel‐
erate or brake in thefo llowing cases, for
ex ample:
R Ifth eve hicle pulls away using Active Dis‐
ta nce Assi stDISTRONIC.
R Ifth estored speed is called up and is con‐
siderably faster or slo werth an the cur‐
re ntly driven speed.
R IfAc tive Dis tance Assi stDISTRONIC no
longer de tects a vehicle in front or does
not react toreleva nt objects. #
Always carefully obser vethe traf fic con‐
ditions and be ready tobrake at all
times. #
Take into account the tra ffic situation
before calling up thestored speed. 16 2
Driving and pa rking
Page 166 of 337

&
WARNING Risk of accident due toinsuf‐
fi cient deceleration byActive Dis tance
Assi stDISTRONIC
Ac tive Dis tance Assi stDISTRONIC brakes
yo ur vehicle with up to50% of the possible
deceleration. If this deceleration is not suf fi‐
cient, Active Dis tance Assi stDISTRONIC
alerts you with a visual and acoustic warning. #
Adjust your speed and main tain a suita‐
ble dis tance from theve hicle in front. #
Brake theve hicle yourself and/or take
ev asive action. &
WARNING Risk of accident if de tection
function of Active Dis tance Assi st
DISTRONIC is impaired
Ac tive Dis tance Assi stDISTRONIC does not
re act or has a limited reaction:
R when driving on a dif fere nt lane or when
ch anging lanes
R topedestrians, animals, bicycles or sta‐
tionary vehicles, or unexpected obs tacles
R tocomplex traf fic conditions
R tooncoming vehicles and crossing traf fic
As a result, Active Dis tance Assi stDISTRONIC
may nei ther give warnings nor inter vene in
su ch situations. #
Always obser vethe tra ffic conditions
carefully and react accordin gly. Ac
tive Dis tance Assi stDISTRONIC may not de tect
nar row vehicles driving in front, e.g. mo torcyc les
or vehicles not tr avelling in line with your vehicle.
Operating Active Di stance Assist DIST RONIC
Re quirements
R The vehicle has been star ted. It may take up
to two minu tes of driving before Active Dis‐
ta nce Assi stDISTRONIC is ready for use.
R The parking brake has been released.
R ESP ®
is activated and is not inter vening.
R Active Parking Assist is not activated.
R The transmission is in position 005B.
R The doors and tailgate are closed.
R The driver's seat belt is fastened. Switching between
the limiter and Active Dis‐
tance Assi stDISTRONIC #
Press but ton6.
R LIM indica tor lamp 3off: Active Dis‐
ta nce Assi stDISTRONIC is selected.
R LIM indica tor lamp 3lit:theva riable lim‐
iter is selec ted.
Ac tivating Active Di stance Assist DIST RONIC #
Toactivate with the cur rent speed: briefly
press the cruise cont rol le ver briefly up 1or
down 5and take your foot off the accelera‐
to r pedal.
The cur rent speed is stored and shown on the
speedome ter.As in the assis tance graphic
menu, the multifunction display brief lysho ws
th e set specified dis tance and thestored
speed.
or #
Toactivate with thest ored speed: pullthe
cruise control le ver briefly in direction 4and
ta ke your foot off the accelera tor pedal.
The speed is displa yed on the speedome ter.
As in the assis tance graphic menu, the multi‐
function display brief lysho ws th e set speci‐
fi ed dis tance and thestored speed.
% Ve
hicles with Traf fic Sign Assi st:th e speed
de tected byTraf fic Sign Assi stcan be set by
pulling the le ver in direction
4(/ page173).
% Yo
u can find information on DISTRONIC dis‐
pl ay s under "Displa ysofActive Dis tance
Assi stDISTRONIC" (/ page 164).
If yo u do not fully release the accelera tor pedal,
th eActive Distance Assist suspended message
appears on the multifunction displa y.The dis‐
tan cetoa slo wer-moving vehicle in front will then Driving and parking
16 3
Page 167 of 337

not be set. The position of
the accelerator pedal
will de term ine the speed.
When you pull the cruise cont rol le verto wa rds
yo ufo rth efirs t time af terst arting theve hicle,
Ac tive Dis tance Assi stDISTRONIC adopts the
cur rent speed. If the cur rent speed is less than
20 km/h, Active Dis tance Assi stDISTRONIC
adopts the speed of 20 km/h.
Pulling away again with Active Di stance
Assist DIST RONIC #
Remo veyour foot from the brake pedal. #
Brief lypull the cruise cont rol le ver in direction
4.
or #
Depress the accelerator pedal briefly with
fo rc e.
The functions of Active Dis tance Assi st
DISTRONIC continue tobe car ried out.
Deactivating Active Di stance Assist
DISTRO NIC &
WARNING Risk of an accident due to
Ac tive Dis tance Assi stDISTRONIC being
acti vewhen you lea vethe driver's seat
If yo u lea vethe driver's seat while theve hicle
is being braked byActive Dis tance Assi st
DISTRONIC only, theve hicle can rollaw ay. #
Always deactivate Active Dis tance
Assi stDISTRONIC and secure theve hi‐
cle topreve nt it from rolling away before
yo u lea vethe driver's seat. #
Brief lypush the cruise cont rol le verfo rw ards
7.
or #
Brake if theve hicle is moving.
or #
Press button 6.
The variable limiter is selec ted. LIM indicator
lamp 3inthe cruise cont rol le ver lights up.
Incre asing or reducing the speed #
Press the cruise cont rol le ver up 1or down
5 asfar as the 1st pressure point.
The stored speed is increased or reduced by
1 km/h.
or #
Press the cruise cont rol le ver up 1or down
5 beyond the 1st pressure point.
The stored speed is increased or reduced by
10 km/h.
Increasing or reducing the specified distance
from the vehicle in front #
Turn controller 3in direction 2toinc rease
th e specified minimum dis tance and in di rec‐
tion 1toreduce the specified minimum dis‐
ta nce.
As in the assis tance graphic menu, the multi‐
function display brief lysho ws th e set speci‐
fi ed dis tance.
% Yo
u can find information on DISTRONIC dis‐
pl ay s under "Active Dis tance Assi st
DISTRONIC" (/ page 164).
Displ ays of Active Di stance Assist DIST RONIC
Assi stant display 1
Vehicle in front, if de tected
2 Distance indica tor
3 Set specified di stance
4 Own vehicle 16 4
Driving and pa rking
Page 168 of 337

Yo
u can find information on the assis tance
graphic menu under "Assis tance graphic"
(/ page 183).
% If
yo u set the speed, the Assis tance graphic
brie fly appears in the multifunction displa y.
Displa yson the speedome ter
When Active Dis tance Assi stDISTRONIC is acti‐
va ted, one or two indicator segments light up in
th estored speed range of the speedome ter.
If Ac tive Dis tance Assi stDISTRONIC de tects a
ve hicle in front, the indicator segments, located
between the speed of theve hicle in front and the
st ored speed, light up. Information on Hill
Start Assist Hill
Start Assist holds theve hicle for a short time
when pulling away on a hill under thefo llowing
conditions:
R Vehicles with manual transmission: age ar
is engaged.
R Vehicles with automatic transmission: the
transmission is in position 005Bor005E.
R The pa rking brake has been released.
This gives you enough time tomo veyour foot
from the brake pedal tothe accelera tor pedal and
depress it before theve hicle begins toroll. &
WARNING Risk of accident and inju ry
due totheve hicle rolling away
Af ter a short time, Hill Start Assist no lon ger
holds theve hicle. #
Swiftly mo veyour foot from the brake
pedal tothe accelera tor pedal. Do not
lea vetheve hicle when it is being held
by Hill Start Assist. HOLD function
HOLD function
The HOLD function is only
available forve hicles
with automatic transmission.
The HOLD function holds theve hicle at a stand‐
st ill without requ iring youto depress the brake
pedal, e.g. when pulling away on steep slopes or
when waiting in traf fic. When you depress the
accelerator pedal topull away,th e braking ef fect
is cancelled and the HOLD function is deactiva‐
te d. The HOLD function is only an aid. The
responsibil‐
ity forth eve hicle safely standing still remains
with the driver.
Sy stem limits
The HOLD function is only intended toprov ide
assis tance when driving and is not a su fficient
means of safeguarding theve hicle against rolling
aw ay when stationar y.
R The incline may not be greater than 30%.
Ac tivating or deactivating the HOLD function
Requ irements
R The vehicle is stationar y.
R The engine is running or it has been au tomati‐
cally switched off bythe ECO start/ stop func‐
tion.
R Allthe doors and theta ilgate are closed and
th e seatbelt is fastened.
R The parking brake has been released.
R The selec tor le ver is in the005B, 005Eor005C posi‐
tion.
R Active Dis tance Assi stDISTRONIC is deacti va‐
te d.
Ac tivating the HOLD function &
WARNING Risk of an accident due tothe
HOLD function being active when you
lea vetheve hicle
If th eve hicle is only braked with the HOLD
function it could, in thefo llowing situations,
ro llaw ay:
R Ifth ere is a malfunction in the sy stem or
in the po wer supply.
R Ifth e HOLD function is deactivated by
depressing the accelera tor pedal or brake
pedal, e.g. byave hicle occupant. #
Always secure theve hicle against rolling
aw ay before you lea veit. #
Depress the brake pedal until the00D9 dis‐
play appears in the multifunction displa y.
The HOLD function is activated. You can
re lease the brake pedal.
% If depressing
the brake pedal thefirs t time
does not acti vate the HOLD function, wait
brief lyand then try again.
Deactivating the HOLD function #
Depress the accelerator pedal topull away.
or Driving and parking
16 5