Page 177 of 389

X
Release the cruise con trol lever.
The ne wspeed is stored.
X Makin gadjustments in1k m/ hincre-
ments: brieflypress the cruis econtrol
lever to the pressurepoint.
The last store dspeed increase sordecrea-
ses in 1km/ hincre ments.
X Mak ing adjustment sin10km/hincre-
ments: brieflypress the cruis econtrol
lever beyon dthe pressur epoint.
The last store dspeed increase sordecrea-
ses in 10 km/h increments.
Deactivating variabl eSPEED TRONIC G
WARNING
It is not possible to deactivate variable Speed-
tronic by braking.
There are severa lways to deactivate variable
SPEEDTRONIC:
X Briefly press the cruise control lever for-
wards B.
or
X Briefly press the cruise control lever in the
direction of arrow A.
LIM indicator lamp ;in the cruise control
lever goes out. Variable SPEEDTRONIC is
deactivated.
Cruise control or DISTRONIC PLUS is selec-
ted.
Variable SPEEDTRONIC is automatically
deactivated if:
R you depress the accelerator pedal beyond
the pressure point (kickdown), but only if
your current spee ddoes not differ by more
than 20 km /h from the stored speed. You
will hear awarning tone if this is the case.
R you activate DSR.
R you activate off-road program 2(vehicles
wit hthe ON&OFFROAD package).
i When you switch off the engine, the last
speed stored is cleared. Permane
nt SPEEDTRONIC You can use the on-board computer to limit
the speed permanently to
avalue between
16 0k m/ h(e.g. for driving on winter tyres)
and th emaximum speed ( Ypage 249).
Shor tlyb efore th estore dspeed is reached, it
appear sinthe multifunction display.
Permanent SPEEDTRONIC remain sactive,
even if variabl eSPEEDTRONI Cisdeactivated.
You can note xceed the sto redl imit speed,
even if you depress the accelerator pedal
beyond the pressure point (kickdown). DISTRONIC PLUS
Importan tsafety notes G
WARNING
Do not change down for additiona lengine
braking on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
DISTRONIC PLU Siso nly an aid designe dto
assis tdriving. Th edrive rremain sfully respon-
sible for the vehicle's distance from other
vehicles, the vehicle's spee dand for braking
in goo dtime.
DISTRONIC PLU Sdoes not react in particular
to:
R pedestrians
R stationar yobstacles on the road, e.g. stop-
ped or parked vehicles
R oncoming and crossin gtraffic
DISTRONIC PLUS may not detect narrow vehi-
cle sdriving in front, e.g .motorcycles, or vehi-
cles driving on adifferen tline. Therefore,
always pay attention to traffic condition seven
when DISTRO NICP LUS is activated. Other-
wise ,you may fai ltorecognise danger sin
time, cause an accident and injure yourself
and others. 174
Drivin
gsystemsDrivin gand parking
Page 178 of 389

G
WARNING
DISTRONIC PLUS canno ttake account of road
and traffic conditions. If DISTRONI Cdoes not
recognise or no longer recognises the vehicle
in front, do not activate DISTRONIC or, if it is
alr eady active, deactivate it. This is especially
the case:
R befor ecorners
R on filter lanes
R when changing to alane with faster moving
traffic
R in comple xdriving situations or where lanes
are diverte d,e.g. at roadworks on amotor-
way
DISTRONIC PLU Sotherwise maintains the
current spe ed setbyyou or accelerates up to
the set speed.
DISTRONIC PLU Scannot take account of
weather conditions. Deactivate, or do not
activate, DISTRONI CPLUS:
R if th eroads are slippery, snow-covered or
icy .The wheels coul dlose their grip when
brakin goraccelerating .The vehicle could
star ttos kid.
R if the sensors are dirty or there is poo rvis-
ibility, e.g. due to snow, rain or fog. Dis-
tance control may be impaired.
Always pay attention to traffic conditions
even when DISTRONIC PLU Sisactivate d.
Otherwise, you ma yfail to recognise dangers
in time, caus eanaccident and injure yourself
and others. G
WARNING
DISTRONIC PLUS brake syourvehicle up to a
maximu mof4m /s2
depending on its speed.
This corresponds to approximately 40% of
your vehicle's maximum braking power. You
must als oapply the brakes yourself if this
braking power is not sufficient.
If DISTRONI CPLUS detects arisk of collision
with avehicle in front, an intermit tent warning
tone sounds. In addition, the ·distance
warning lamp in the instrument cluste rlights
up. Brak etoavoidac ollision. G
WAR
NING
The vehicle can be braked when DISTRONIC
PLUS is activated. For this reason, deactivate
DISTRONIC PLUS if the vehicle is to be set in
motion by othe rmeans (e.g. in acar wash or
by towing).
The radar senso rsystem is automatically
deactivated near radio teles cope facilities
(Y page 38 0).
If you want DISTRONIC PLUS to assist you,
the radar sensor syste mmust be activated
(Y page 249 )and operational.
General notes DISTRONIC PLUS regulates the speed and
automati cally helps you maintain the dis-
tanc etot he vehicle detected in front. It
brakes automatically in orde rtoavoid
exceedi ngthe set speed.
On long and stee pdownhil lgradients, espe-
ciall yifthe vehicle is laden or towing atrailer,
yo um ust select shift range 1,2or 3in good
time. By doing so, you will make use of the
braking effec tofthe engine. This relieves the
load on the brake system and prevents the
brakes from overheating and wearing too
quickly.
If DI STRONIC PLUS detects aslower-moving
vehicle in front ,your vehicle is braked in order
to maintain the preset distance to the vehicle
in front.
If ther eisnov ehicle in front ,DISTRONIC
PLUS operate sinthe sam eway as cruise
control in the spee drange between
30 km/h and 200 km/h. If avehicle is driving
in fron tofyou, DI STRONIC operates in the
speed range betwee n0km/h and
200 km/h.
Do not us eDISTRONIC PLUS on roa dswith
steep gradients. Driving systems
175Drivingand parking Z
Page 179 of 389

Cruise control lever
:
To activat eorincrease speed
; To set the spe cified minimum distance
= LIM indica torlamp
? To activat eatthe current speed/la st
stored speed
A To activate or reduc espeed
B To switc hbetween DI STRONIC PLUS and
variable SPEEDTRONIC
C To deactivate DISTRONIC PLUS
With the cruise contro llever ,you can operate
DI ST RONIC PLUS and variable SPEED-
TRONIC.
X To switch between variable SPEED-
TRONIC and DISTRONIC PLUS: press the
cruise contro llever in the direc tion of arrow
B.
LI Mi ndicator lamp =on the cruise control
lever indicates which function you have selec-
ted:
R LIM indicator lamp = off:
DISTRONIC
PLUS is selected.
R LIM indicator lamp = on:
variable
SPEEDTRONIC is selected.
Activating DISTRO NICP LUS Activation conditions
To activate DISTRONIC PLU S,the following
conditions must be fulfilled:
R for vehicle snot equipped with anavigation
system, the Becker ®
MAP PILOT must be connected. See the separate Audio 20
operatin
ginstructions.
R the engi ne must be running. It ma ytakeup
to two minutes of driving before DIS-
TRONIC PLUS is ready for use.
R the electric parking brake must be
released.
R ESP ®
must be switched on, but not inter-
vening.
R the transmission must be in position D.
R the driver' sdoor must be closed when you
shift from Pto Dor your seat belt must be
fastened.
R the front-passenger door and the rear
doors must be closed.
R Off -road program 2must be deactivated
(vehicles with the ON&OFFROA Dpackage).
R DS Rm ust be deactivated.
R the vehicle must not be skidding.
R the DI STRONIC PLUS function must be
selected (Y page 176).
Activating while driving
Whe ndriving at speeds belo w30km/h, you
can onl yactivate DISTRONIC PLUS if the vehi-
cle in front has been detected and is shown
in the mul tifunctio ndisplay. If th evehicle in
fron tisnol onger detected and displayed,
DISTRONIC PLU Sswitches off and you will
hear atone.
X Briefl ypull the cruise control lever towards
you ?or press it up :or down A.
DISTRONIC PLUS is selected.
X Keep the cruise control lever pressed
up : or down Auntil the desired speed
is set.
X Remove your foot from the accelerator
pedal.
Your vehicle adapts its spee dtothat of the
vehicle in front ,but only up to the desired
stored speed.
i If you do not fully release the accelerator
pedal ,the DISTRONI CPLUS inactive message appe
arsint he multifunction dis- 176
Driving systemsDriving and parking
Page 180 of 389

play. The set distance to
aslower-moving
vehicle in fron twill then not be maintained.
You will be drivin gatthe speed you deter-
mine by the position of the accelerator
pedal.
Activating when driving towar dsasta-
tionary vehicle
If the vehicl einfront of yo uisstationary, you
can onl yactivate DISTRONI CPLUSo nce your
vehicl eisstationary as well.
X Briefl ypullt he cruis econtr ollever towards
you ?or press it up :or down A.
DISTRONIC PLUS is selected.
i DISTRO NIC PLUS can only be activate dat
under 30 km/h if avehicle in front has been
detected. Therefore, the DISTRONIC PLUS
distance display in the instrumen tcluster
should be activated (Y page 245).
X Keep the cruise control lever pressed
up : or down Auntil the desired speed
is set.
i You can use the cruise control lever to set
the stored speed and the control on the
cruise control lever to set the specified
minimum distance (Y page 180).
Activating at the current speed/last
stored speed G
WARNING
Only call up astored speed if you know what
that speed is and if it is suitable for the current
traffic and driving situation. You can other-
wise endanger yoursel forothers by uninten-
tionally triggering sudden acce leratio nor
braking.
X Briefly pull the cruise contro llever towards
you ?.
X Remov eyour foot from the accelerator
pedal.
DI ST RONIC PLUS is activated. The first
time it is activated, the curren tspeed is
stored. Otherwise, it sets the vehicle cruise
speed to the previously stored value. Displa
ywhen DISTRO NICP LUS is activa-
ted DISTRONIC PLU
Sdisplays in the speedometer
When DISTRONIC PLUS is activated, one or
two segments ;in the set speed range light
up.
i For desig nreasons ,the speed displayed
in the speedometer ma ydiffer slightly from
the speed set for DISTRONIC PLU S.
If DISTRONIC PLUS dete ctsav ehicle in front,
segments ;between speed of the vehicle in
front :and stored speed =light up. Distanc
edisplay with DISTRONIC PLUS activated
in the multifunction display
: DISTRONIC PLUS activated
; Own vehicle
= Specified minimu mdistanc etothe vehi-
cle in front; adjustable
? Vehicle in front, if detected
In the Assistanc emenu (Y page 24 4)of the
on-boar dcompu ter,you can select the dis-
tanc edisplay. Drivin
gsystems
177Drivingand park ing Z
Page 181 of 389

X
Select the Distance display function
using the on-b oard computer
(Y page 245).
i Youw ills ee the stored speed for about
five seconds when you act ivate DISTRONIC
PLUS.
Drivin gwithD ISTRONI CPLUS Pullin
gaway
X If the vehicle in fron tpullsa way: remove
you rfoot from the brake pedal.
X Briefl ypull the cruise control lever
(Y page 176 )towards you.
or
X Accelerate briefly.
Your vehicle pulls away and adapt sits
speed to that of the vehicle in front.
Driving G
WARNING
If you depres sthe brake, DI STRONIC PLUS is
deactivated unless your vehicle is stationary.
DISTRONIC PLUS then no longe rbrake syour
vehicle. In such cases, control the distance
from vehicles travelling in front with the brake
alone. You coul dotherwis ecause an accident
and thereby injure yourself and others. The
driver remains fully responsible for the vehi-
cle's distance from other vehicles, the speed
being driven and for braking in good time.
If there is no vehicle in front ,DISTRONIC
PLUS operate sinthe sam eway as cruise
control.
If DISTRONIC PLUS detect sthat the vehicle
in front has slowed down, it brakes your vehi-
cle. In this way ,the distanc eyou have selec-
ted is maintained.
If DI STRONIC PLUS detects afaster-moving
vehicle in front ,itaccelerates your vehicle,
but only up to the speed you have stored. Changing lanes
If you wis
htochange to the passin glane (in
countries where traffic drives on the right, the
passing lane is the left-hand lane), DIS-
TRONIC PLUS supports you if:
R you are driving faster than 60 km/h.
R DISTRONIC PLUS is maintainin gthe dis-
tan cetoav ehicle in front.
R you switc honthe appropriate tur nsignals.
R DISTRONIC PLU Sdoes not detec tadanger
of collision.
If these conditions are met, your vehicle is
accelerated. Acceleration will be interrupted
if changin glanes takes too long or if the dis-
tanc ebetween your vehicle and the vehicle in
front becomes too small. G
WARNING
DI ST RONIC PLUS and Active Blind Spot Assist
are only an aid designed to assist driving.
The ydon ot relieve you of the responsibility
of payin gattention. The driver remains fully
responsibl efor the vehicle' sdistance from
other vehicles, the vehicle's speed and for
braking in good time. Always pay attention to
traffic conditions and your surroundings. Oth-
erwise, you may fail to recognise dangers in
time, cause an accident and injur eyourself
and others.
Vehicles with COMAND Online
i The following function is not operational
in all coun tries.
DI ST RONIC PLUS uses additional information
from your navigation syste msothat it can
adapt to cer tain traffic situations. This is the
case if, while following avehicle, DI STRONIC
PLUS is active and you:
R approach or drive around aroundabout
R approach aTjunction
R turn off at amotorway exit
Even if the vehicle in front leaves the detec-
tion range, DI STRONIC PLUS temporarily
maintains the current driving speed and does 178
Driving systemsDrivin
gand parking
Page 182 of 389

not accelerate. Thi
sisbasedonthe current
map data in the navigation system. Example: roundabout
The current speed is maint
ained:
R approximatel y10second sbefore the
roundabout/T junction and for approx-
imatel y1.5 second swhend riving on the
roundabout
R approximatel y12second sbefore reaching
am otorwa yexita nd approximatel y4sec-
onds after the motorwa yexit
Afterwards ,the vehicle accelerates bac kto
the set speed you specified.
Stopping G
WARNING
Never get out of the vehicle when DISTRONIC
PLUS is activated.
DISTRONIC PLUS must also never be oper-
ated, activated or deactivated by apassenger
or from outside the vehicle.
DISTRONIC PLUS does not replace the elec-
tric parkin gbrake and mus tnot be used for
parking.
The DI STRONIC PLUS brakin geffect is can-
celle dand the vehicl ecan start movin gif:
R DISTRONIC PLUS is deactivated using the
cruis econtrol lever.
R you accelera te.
R there is amalfunction in the system or an
interruption in the power supply, e.g. bat-
tery failure. R
the electrical system in the engine com-
partment, the batter yorthe fuses ar etam-
pered with.
R the batter yisdisconnected.
If you wish to leave the vehicle or park it,
deactiva teDISTRONIC PLUS and secure the
vehicle agains trolling away.
If DI STRONIC PLUS detects that the vehicle
in fron tisstopping, it brakes your vehicle until
it is stationary.
Once your vehicle is stationary, it remains
stationary and you do not need to depress the
brake.
i After atime, the electric parkin gbrake
secure sthe vehicle and relieves the service
brake.
i Depending on the specifie dminimum dis-
tance, your vehicle will come to astandstill
at as ufficient distance behind the vehicle
in front .The specifie dminimum distance is
set using the control on the cruise control
lever.
The electric parkin gbrake secure sthe vehicle
automatically if DI STRONIC PLUS is activated
and:
R the driver's doo risopen and the driver's
seat belt is unfastened.
R the engine is switched off ,unles sitisa uto-
matically switched off by the ECO start/
stop function.
R as ystem fault occurs.
R the powe rsupply is not sufficient.
On steep uphill or downhill inclines or if there
is am alfunction, the transmission may also
be automatically shifted into position P. Driving systems
179Drivingand parking Z
Page 183 of 389

Setting
aspeed X
Press the cruise control lever up :for a
high er spee dordown;for alower speed.
X Keep the cruise contr ol leverpresse duntil
the desired speed is reached.
X Release the cruise contro llever.
The new speed is stored. DI STRONIC PLUS
is activated and adjusts the vehicle's speed
to the new speed stored.
X To mak eadjustments in 1km/h incre-
ments: briefly press the cruise control
lever to the pressure point.
The last stored speed increase sordecrea-
ses in 1km/ hincrements.
X To make adjustments in 10 km/h incre-
ments: briefly pres sthe cruise contr ol
leve rbeyond the pressur epoint.
The last stored speed inc reases or decrea-
ses in 10 km/ hincrements.
Setting the specified mini mumdistance You can se
tthe specifie dminimum distance
for DISTRONIC PLU Sbyvarying the time span
between one and two seconds. With this func-
tion ,you can set the minimu mdistance that
DISTRONIC PLU Skeeps to the vehicle in
front, dependen tonvehicle speed. You can
see this distan cein the multifunction display
(Y page 177). X
To increase: turn control;in direction
=.
DISTRONIC PLU Sthen maintain sagreater
distance between your vehicl eand the
vehicl einfront.
X To decrease: turn control;in direc-
tion :.
DISTRONIC PLUS then maintains ashorter
distanc ebetween your vehicle and the
vehicle in front.
i Make sure that you maintain asufficient
and safe distance from the vehicle in front.
Adjust the distance to the vehicle in fron tif
necess ary.
Deactivatin gDISTRONIC PLUS There are severa
lwaystod eactivate DIS-
TRONI CPLUS:
X Briefl ypress th ecruis econtr ollever for-
wards :.
or
X Brake, unless the vehicl eisstationary. 180
Driving systemsDriving and
parking
Page 184 of 389

or
X
Briefl ypres sthe cruise con trol leve rinthe
direction of arrow =.
Variable SPE EDTRONIC is selected. LIM
indicator lamp ;in the cruise control lever
lights up.
When you deactivate DI STRONIC PLUS, the
DISTRONIC PLU Soff message is show
nin
the multifunction display for approximately
five seconds.
i The last speed stored remains stored until
you switch off the engine.
i DISTRONIC PLUS is not deactivated if you
depress the accelerator pedal. If you accel-
erate to overtake, DISTRONIC PLUS
adjusts the vehicle's speed to the last
speed stored after you have finished over-
taking.
DISTRONIC PLUS is automatically deactiva-
ted if:
R you engag ethe electric parkin gbrake or if
th ev ehicle is automatically secured with
the electric parking brake.
R you are driving slower than 25 km /hand
there is no vehicle in front ,orifthe vehicle
in front is no longer detec ted.
R ESP ®
intervenes or if you deactivat eESP®
.
R the transmission is in the P,Ror Nposition.
R the vehicle is near aradio telescop efacility
(Y page 380).
R you switch off the radar senso rsystem
(Y page 249).
R you pull the cruise control lever towards
you in order to pull away and the front-
passenger doo rorone of the rear doors is
open.
R you activate DSR.
R you activate off-road program 2onvehicles
with the ON&OFFROA Dpackage.
R the vehicle has skidded.
If DISTRONIC PLUS is deactivated, you will
hear awarning tone. The DISTRONICP LUS off message is show
ninthe multifunction
displa yfor approximately fiv eseconds.
In the Assistanc emenu (Y page 24 4)of the
on-boar dcompu ter,you can select the dis-
tanc edisplay. Distance display when DISTRONI
CPLUS is deacti-
vated
: Vehicl einfront, if detected
; Distance indicator: curre ntdistanc eto
the vehicle in front
= Specified minimum distanc etothe vehi-
cle in front; adjustable
? Own vehicle
X Select the Distancedisplay function
usin gthe on-boar dcompu ter
( Y page 24 5).
Tips for driving with DISTRO NICP LUS Genera
lnotes
The following contains descriptions of certain
road and traf ficc ondition sinwhich you must
be particularly attentive. In such situations,
brake if necessary. DI STRONIC PLUS is then
deactivated. Driving systems
181Drivingand park ing Z