X
Makin gadjustments in 1km/h incre-
ments: briefly press the cruise control
leve rtot he pressur epoint.
The last stored speed increases or decrea-
ses in 1km/h increments.
X Makin gadjustments in 10 km/h incre-
ments: briefly pres sthe cruise con trol
leve rbeyond the pressur epoint.
The last stored speed increases or decrea-
ses in 10 km /hincrements.
i Cruise control is not deactivated if you
depress the accelerator pedal. For exam-
ple, if you accelerate briefly to overta ke,
cruis econtrol adjusts the vehicle' sspeed
to the last speed stored after you have fin-
ished overtaking.
Deactivating cruise control There are several ways to deactivat
ecruise
con trol:
X Briefl ypres sthe cruise con trol leve rfor-
wards B.
or
X Brake
or
X Briefl ypres sthe cruise con trol leve rinthe
direction of arrow A.
Variable SPE EDTRONIC is selected. LIM
indicator lamp ;in the cruise control lever
lights up.
Cruise control is automatically deactivated if:
R you engage the electric parkin gbrake.
R yo ua re driving at less than 30 km/h.
R ESP ®
intervenes or if yo udeactivate ESP ®
.
R you activate DSR.
R you activate off-road program 2onvehicles
with the ON&OFFROA Dpackage.
R you shift the transmissio ntoposition N
while driving.
If cruise control is deactiva ted, you will hear
aw arning tone. You will see the Cruisecontro
loff message in th
emultifunction
display for approximately five seconds. i
When you switch off the engine, the last
spee dstored is cleared. SPEEDTRONIC
Important safet ynotes G
WARNING
Never depress the brake pedal continuously
while the vehicle is in motion ,e.g. never cause
the brakes to rub by applying constant slight
pedal pressure. This causes the brake system
to ove rheat, increases the braking distance
and can lead to the brakes failing completely. G
WAR
NING
Do not change down for additional engine
braking on aslippery road surface. This could
cause the drive wheels to lose their grip and
the vehicle could skid. G
WARNING
SPEEDTRONIC is only an aid designed to
assist driving. You are responsible for the
vehicle's speed and for braking in good time. G
WARNING
If ther eisac hange of drivers, advise the new
drive rofthe limit speed stored.
Only use variable SPE EDTRONI Cifyou will not
have to accelerate suddenl ytoaspeed above
that stored as the limit speed. You could oth-
erwise cause an accident.
You can only exceed the limit speed stored if
you deactivate variable SPE EDTRONIC:
R using the cruise control lever
R by depressin gthe accelerator pedal
beyon dthe pressure point (kickdown)
It is not possible to deactivate variable
SPE EDTRONI Cbybraking.
General notes SPE
EDTRONIC brakes automatically so that
you do not exceed the set speed. On long and
steep downhil lgradients ,especially if the 172
Driving systemsDriving and parking
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
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
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
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
HOL
Dfunction
Gen eral notes Th
eH OLD function ca nassist the driver in the
foll owing situations:
R when pulling away, especially on steep
slopes
R when manoeuvrin gonsteep slopes
R when waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effect is cancelled and the HOLD
function is deactivated when you depress the
accelerator peda ltop ull away.
Activation conditions You can activate the HOLD function if:
R the vehicle is stationary.
R the engine is running or if it has been auto-
matically switched off by the ECO start/
stop function.
R the driver' sdoor is closed or if your seat
belt is fastened.
R the electric parkin gbrake is released.
R thet ransmission is in position D,Ror N.
R DISTRONIC PLUS is deactivated.
Activatin gthe HOL Dfunction X
Make sure that th eactivation conditions
are met.
X Depress the brake pedal. X
Quickly depress the brake pedal further
until HOLD display
:appears in the multi-
function display.
Th eH OLD func tion is activated. You can
release the brake pedal. i
If depressing the brake pedal the first
tim edoes not activate the HOL Dfunction,
wait briefly and then try again. G
WARNING
The vehicle's brakes are applied when the
HOLD function is activated. For this reason,
deactivate the HOLD function if the vehicle is
to be set in motion by other means (e.g. in a
car wash or by towing).
Deactivating the HOLD function The HOLD function is deactivated automati-
cally if:
R you accelerate and the transmission is in
position Dor R.
R you shift the transmission to position P.
R you apply the brakes again with acertain
amount of pressur euntil HOLD disappears
from the multifunctio ndisplay.
R you secure the vehicle using the electric
parkin gbrake.
R yo ua ctivate DISTRONIC PLUS.
i After atime, the electric parkin gbrake
secure sthe vehicle and relieves the service
brake. G
WARNING
Never get out of the vehicle when the HOLD
func tion is activated.
The HOL Dfunction must never be operated
or deactivated by apassenger or from outside
the vehicle.
The HOLD function does not replace the elec-
tric parking brake and must not be used for
parking.
The braking effect of the HOLD function is
cancelled and the vehicle could roll away if:
R the HOLD function is deactivated by
depressing the accelerator pedal or the
brake pedal.
R there is amalfunction in the system or an
interruption in the power supply ,e.g. bat-
tery failure. Driving systems
187Drivingand parkin g
Z
Problems wit
hPARKTRONIC Problem Possible causes/consequences and
M Solutions
Only the red segments
in the PARKTRONIC
warning display sare lit.
Yo ua lso hear awarning
tone for approximately
two seconds.
PARKTRONIC is deacti-
vated after approx-
imately 20 seconds,
and the indicator lamp
in the PARKTRONIC
button lights up. PARKTRONIC has malfunctioned and has switched off.
X If problems persist, have PARKTRONIC checked at aqualified
specialist workshop. Only the red segments
in the PARKTRONIC
warning display sare lit.
PARKTRONIC is deacti-
vate dafter approx-
imatel y20seconds. The PARKTRONI
Csensors are dirt yorthere is interference.
X Clean the PARKTRONI Csensors (Y page 327).
X Switch the ignition back on. The problem may be caused by an exter
nalsource of radio or
ultrasoun dwaves.
X See if PARKTRONIC functions in adifferent location. Active Parking Assist
Important safet ynotes Active Parking Assist is an electronic parking
aid with ultrasound. Ultrasound is used to
measure the road on both sides of the vehicle.
As uitable parking space is indicated by the
parking symbol. Activ esteering intervention
can assis tyou during parking. You ma yalso
use PARKTRONIC (Y page 191). When PARK-
TRONIC is switched off, Active Parking Assist
is also unavailable. G
WARNING
Active Parkin gAssist is merely an aid and may
sometimes recommen dparking spaces that
are not suitable for parking. For example,
these might be spaces where parking is pro-
hibited ,driveways, unsuitabl esurfaces, etc.
Active Parking Assis tmeasures the parking
space as you driv epast it. Any later changes to the parking space are not taken into
account .For insta nce,this ma ybethe case
when the vehicle parked in front of or behind
the space changes its position or when an
obstacle is moved int othe parkin gspace.
Active Parking Assist does not reliev eyou of
the responsibilit yofpaying attention. If you
rely solel yonA ctive Parkin gAssist ,you could
cause an accident and injure yourself and oth-
ers.
You are always responsible for safet yand
must continue to pay attention to your imme-
diate surroundings whe nparking and
manoeuvring. G
WARNING
Objects located above the heigh trange of
Active Parking Assis twill not be detected
when the parking space is measured. These
are not taken into account when the parking 194
Drivin
gsystemsDrivin gand parking
procedure is calculated, e. g. overhanging
loads, tail sections or loading ramps of goods
vehicles. In some cir
cumstances, Active Park-
ing Assist may therefore guide you into the
parking space too early. Thi smay lead to a
collision. For this reason, you shoul davoid
using Active Parking Assist in such situatio ns.G
WARNING
Th ef ront of th evehicle will veer out in the
direc tion of the oncomin gtraffic during the
parking operatio n. Insome cases the vehicle
will also take you onto section softhe oncom-
ing lan eduring the parking procedure.
You are responsible for safety at all times and
must pay attention to any road users
approaching or passing. Stop the vehicle if
necessary or cancel the Active Parking Assist
parking procedure. G
WARNING
Make sure that no persons or animals are in
the manoeuvring range. Otherwise, they
could be injured.
Use Active Parking Assis tfor parkin gspaces:
R that are parallel to the direction of travel
R that are on straight roads, not bends
R that are on the same level as the road, e.g.
not on the pavement
Parking tips:
R on narrow roads, driv easclosely as possi-
ble past the parkin gspace.
R parking spaces that are littered, overgrown
or partially occupied by trailer drawbars
might be identified incor rectly or not at all.
R snowfall or heavy rain may lea dtoap arking
space being measured inaccurately.
R pay attention to the PARKTRONIC
(Y page 192 )warning message sduring the
parking procedure.
R you can intervene in the steering procedure
to correc titatany time. Active Parking
Assist will then be cancelled. R
whe ntransporting aload which protrudes
from your vehicle, you should not use
Active Parkin gAssist.
R never use Ac tive Parkin gAssist when snow
chains or an emergenc yspare wheel are
fit ted.
R mak esure that the tyre pressures are
always correct. This has adirec tinfluence
on the parking characteristics of the vehi-
cle.
R the wa yyourv ehicle is positioned in the
parking space after parking is dependent
on various factor s. Theseinclude the posi-
tion and shape of the vehicles parked in
front and behind it and the conditions of the
location. In some cases, Active Parking
Assist may guid eyou too far int oaparking
space, or not far enough into it. In some
cases, it may also lead you across or onto
the kerb. If necessary, you should abort the
parking procedure with Active Parking
Assist.
R you can also engage forward gear prema-
turely. The vehicle redirects and does not
drive as far into the parking space. Should
ag ear be changed too earl ytoa chieve a
sensible parkin gposition ,the parkin gpro-
cedure wil lbeaborted.
! If unavoidable, you should driv eover
obstacles such as kerb sslowly and not at
as har pangle .Otherwise, you may damage
the wheels or tyres.
Detectin gparking spaces Active Parking Assis
tiss witched on automat-
ically when driving forwards. The system is
operational at speed sofuptoa pproximately
35 km/h. While in operation, the system inde-
pendently locates and measures parking
spaces on both sides of the vehicle. When
driving at speeds below 30 km/ h,you will see
the parking symbol as astatus indicato rinthe
instrumen tcluster. Activ eParking Assist only
displays parking spaces on the front-
passe nger side as standar d.Parking spaces
on the driver' sside are displayed as soon as Driving systems
195Drivingand parking Z