Important notes on topping up
DEFisa water-soluble fluid for the exhaust
gas aftertreatment of diesel engines. Itis:
Rnot pois onous
Rcolorless and odorless
Rnot flammable
When you open the DEF container, small
amounts of ammonia vapor may be released. Ammon iavapors have a pungent odor and are
particularly irr itating to the skin, to mucous
membranes and to the eyes. You may expe-
rience a burning sensation in your eyes, nose and throat. Coughing and watering of the
eyes are possible.
Do not inhale ammonia vapors. Fill the DEF
tank only in well- ventilated areas.
DEF must not come into contact with your
skin, eyes or clothing and must not beswal-
lowed. Keep DEF away from children.
If you or other persons come into contact with
DEF, observe the fol lowing:
RRinse DEF from your skin immediatelywith
soap and water.
RIf DEF comes into contact with your eyes,
immediately rinse them thoroughly with
clean water. Seek medical assistance with-
out delay.
RIf DEF has been swallowed,rinse your
mouth out immediately. Drink plenty of
water. Seek medical assistance without
delay.
RChange out of clothing contaminated with
DEF immediately.
!Only use DEF in accordance with
IS O 22241. Do not mix any additives with
DEF, and donot dilute DEF with water. This
may destroy th e B
lueTEC exhaust gas after-
treatment system.
!Rins e surfaces that have come into con-
tact with DEF immediately with water or
remove DEF using a damp cloth and co ld
water. Ifthe DEF has already crystallized,
use a sponge and co ldwater to clean it. DEF residues crystallize after time and contam-
inate the affected surfaces.
!DEF
isnot a fuel additive and must not be
added to the fuel tank. IfDEF isadded to
the fuel tank, th iscan lead to engine dam-
age.
!Only screw on the DEF ref illbottle hand-
tight. Itcould otherwise bedamaged.
The DEF filler neck isunder the trunk floor.
XSwi tch the ignit ion off.
XOpen the trunk.
XLift up the trunk floor (Ypage 248).
XTurn DEF cap :counter-clock wiseand
remove it.
XTurn DEF filler cap ;counter-clockwise
and open it.
Filler cap ;issecured with a plastic strip.
150Refueling
Driving and parking
Drivingon wet road s
Information in th eDigital Operator's
Manual
In th eDigital Operator's Manual you will fin d
information on th efollowing topics:
RHydroplanin g
RDriving on floode droads
Winte rdrivin g
GWARNING
If you shift down on aslipper yroad surfac ein
an attempt to increase th eengine's braking
effect ,th edrive wheels could los etheir grip.
There is an increase ddanger of skidding and
accidents .
Do no tshift down fo radditional engin ebrak-
in g on aslipper yroad surface.
GDANGER
If th eexhaus tpipe is blocke dor adequat e
ventilation is no tpossible, poisonous gases
suc has carbon monoxide (CO) may ente rth e
vehicle. Thi sis th ecase, e.g. if th evehicle
becomes trappe din snow. There is aris kof
fatal injury.
If you leav eth eengin eor th eauxiliar yheatin g
running ,mak esur eth eexhaus tpipe and are a
around th evehicle are clear of snow. To
ensur ean adequat esupply of fresh air, ope n a
window on th esid eof th evehicle that is no t
facin ginto th ewind.
Further information can be found in th eDigi-
ta lOperator's Manual.
Drivin gsystems
Mercedes-Benz Intelligent Drive
Mercedes-Ben zIntelligen tDrive stand sfo r
innovative driver assistanc eand safet ysys-
tems whic henhance comfor tand suppor tth e
driver in critical situations. Wit hthese intelli-
gen tco-ordinated systems Mercedes-Ben zhas set
amileston eon th epat htoward s
autonomous driving.
Mercedes-Ben zIntelligen tDrive embraces all
elements of active and passive safet yin on e
well though tout system –fo rth esafet yof th e
vehicle occupant sand that of other road
users.
Further information on drivin gsafet ysystems
(
Ypage 75) .
CruiseContro l
General notes
Cruis econtro lmaintain s aconstant road
speed fo ryou. It brake sautomatically in order
to avoid exceedin gth eset speed. On lon gand
steep downhill gradients ,especially if th e
vehicle is laden ,you mus tshift to alowe rgear
in time. By doin gso, you will mak euse of th e
braking effect of th eengine. Thi srelieves th e
load on th ebrake system and prevents th e
brake sfrom overheatin gand wearin gto o
quickly.
Use cruise contro lonly if road and traffic con-
dition smak eit appropriat eto maintain a
steady speed fo r aprolonged period. You can
stor eany road speed abov e20 mph
(30 km/h).
Important safet ynotes
If you fail to adapt your drivin gstyle, cruise
contro lcan neither reduce th eris kof an acci-
den tno roverride th elaws of physics. Cruis e
contro lcanno ttake into accoun tth eroad,
traffic and weather conditions. Cruis econtro l
is only an aid. You are responsible fo rth edis -
tanc eto th evehicle in front, fo rvehicle speed,
fo rbraking in goo dtime and fo rstayin gin
your lane.
Driving systems15 5
Driving an d parking
Z
Do not use cruise control:
Rin road and traffic conditions which do not
allow you to maintain a constant speed e.g.
in heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
If there is a change of drivers, advise the new
driver of the speed stored.
GWARNING
If you call up the stored speed and it differs
from the current speed, the vehicle acceler-
ates or decelerates. If you do not know the
stored speed, the vehicle could accelerate or brake unexpectedly. There is a risk of an acci-
dent.
Pay attention to the road and traffic condi-
tions before calling up the stored speed. If you
do not know the stored speed, store the
desired speed again.
Cruise control lever
:To activate or increase speed
;To activate or reduce speed
=To deactivate cruise control
?To activate at the current speed/last
stored speed
When you activate cruise control, the stored
speed is shown in the multifunction display
for five seconds.
Information in the Digital Operator's
Manual
In the Digital Operator's Manual you will find
information on the following topics:
RActivation conditions
RStoring, maintaining and calling up a speed
RSetting a speed
RDeactivating cruise control
DISTRONIC PLUS
General notes
DISTRONIC PLUS regulates the speed and
automatically helps you maintain the dis-
tance to the vehicle detected in front. Vehi-
cles are detected with the aid of the radar
sensor system. DISTRONIC PLUS brakes
automatically so that the set speed is not
exceeded.
Change into a lower gear in good time on long
and steep downhill gradients. This is espe-
cially important if the vehicle is laden. By
doing so, you will make use of the braking
effect of the engine. This relieves the load on
the brake system and prevents the brakes
from overheating and wearing too quickly.
If DISTRONIC PLUS detects that there is a risk
of a collision, you will be warned visually and
acoustically. DISTRONIC PLUS cannot pre-
vent a collision without your intervention. An
intermittent warning tone will then sound and the distance warning lamp will light up in the
instrument cluster. Brake immediately in
order to increase the distance to the vehicle
in front or take evasive action provided it is
safe to do so.
For DISTRONIC PLUS to assist you when driv-
ing, the radar sensor system must be
switched on and operational; see "Radar sen- sor syste m" i
n the index.
DISTRONIC PLUS operates in range between
0 mph (0 km/h) and 120 mph (200 km/h).
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
156Driving system s
Driving an d parking
front, for vehicle speed, for braking in good
time and for staying in your lane.
Do not use DISTRONIC PLUS:
Rin road and traffic conditions which do not
allow you to maintain a constant speed, e.g.
in heavy traffic or on winding roads
Ron slippery road surfaces. Braking or accel-
erating could cause the drive wheels to lose
traction and the vehicle could then skid
Rwhen there is poor visibility, e.g. due to fog,
heavy rain or snow
DISTRONIC PLUS may not detect narrow
vehicles driving in front, e.g. motorcycles, or
vehicles driving on a different line.
In particular, the detection of obstacles can
be impaired if:
Rthere is dirt on the sensors or anything else covering the sensors
Rthere is snow or heavy rain
Rthere is interference by other radar sources
Rthere are strong radar reflections, for
example, in parking garages
If DISTRONIC PLUS no longer detects a vehi- cle in front, DISTRONIC PLUS may unexpect-
edly accelerate the vehicle to the stored
speed.
This speed may:
Rbe too high if you are driving in a filter lane
or an exit lane
Rbe so high in the right lane that you pass
vehicles driving on the left (left-hand drive
countries)
Rbe so high in the left lane that you pass
vehicles driving on the right (right-hand
drive countries)
If there is a change of drivers, advise the new
driver of the speed stored.
Cruise control lever
:To store the current speed or a higher
speed
;To store the current speed or a lower
speed
=To deactivate DISTRONIC PLUS
?To store the current speed or call up the
last stored speed
ATo set the specified minimum distance
Activating DISTRONIC PLUS
Activation conditions
In order to activate DISTRONIC PLUS, the fol-
lowing conditions must be fulfilled:
Rthe engine must be started. It may take up
to two minutes after pulling away before
DISTRONIC PLUS is operational.
Rthe parking brake must be released.
RESP®must be active, but not intervening.
RActive Parking Assist must not be activa-
ted.
Rthe transmission must be in position D.
Rthe driver's door must be closed when you
shift from Pto Dor your seat belt must be
fastened.
Rthe front-passenger door and rear doors
must be closed.
Rthe vehicle must not skid.
158Driving systems
Driving and parking
When DISTRONIC PLUS is activated, the
transmission is shifted automatically to posi-
tionPif:
Rthe driver's door is open and the driver's
seat belt is unfastened.
Rthe engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function.
Ra system malfunction occurs.
Rthe power supply is not sufficient.
Information in the Digital Operator's
Manual
In the Digital Operator's Manual you will find
information on the following topics:
RSetting a speed
RSetting the specified minimum distance
RDISTRONIC PLUS displays in the instru-
ment cluster
Deactivating DISTRONIC PLUS
There are several ways to deactivate
DISTRONIC PLUS:
XBriefly press the cruise control lever for-
wards :.
or
XBrake, unless the vehicle is stationary
When you deactivate DISTRONIC PLUS, you
will see the DISTRONIC
PLUSOffmessage in
the multifunction display for approximately
five seconds.
iThe last speed stored remains stored until
you switch off the engine.
iDISTRONIC PLUS is not deactivated if you
depress the accelerator pedal.
DISTRONIC PLUS is automatically deactiva-
ted if:
Ryou engage the parking brake
RESP®intervenes or you deactivate ESP®
Rthe transmission is in the P,Ror Nposition
Ryou pull the cruise control lever towards
you in order to pull away and the front-
passenger door or one of the rear doors is
open
Rthe vehicle is skidding
Ryou activate Active Parking Assist
If DISTRONIC PLUS is deactivated, you will
hear a warning tone. You will see the
DISTRONIC PLUS Off
message in the multi-
function display for approximately five sec-
onds.
Tips for driving with DISTRONIC PLUS
General notes
Pay particular attention in the following traffic
situations:
RCornering, going into and coming out of a
bend
RVehicles traveling on a different line
ROther vehicles changing lanes
RNarrow vehicles
RObstructions and stationary vehicles
RCrossing vehicles
In such situations, brake if necessary.
DISTRONIC PLUS is then deactivated.
Driving systems161
Driving and parking
Z
Crossing vehicles
DISTRONIC PLUS may mistakenly detect
vehicles that are crossing your lane. Activat-
ing DISTRONIC PLUS at traffic lights with
crossing traffic, for example, could cause
your vehicle to pull away unintentionally.
DISTRONIC PLUS with Steering Assist
and Stop&Go Pilot
General notes
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot aids you in keeping the vehicle
in the center of the driving lane by means of
moderate steering interventions in the speed
range from 0 - 125 mph(0-20 0km/ h).
It monitors the area in front of your vehicle by
means of multifunction camera :, at the top
of the windshield.
At speeds of 0 - 37 mph (0 - 60 km/h),
Stop&Go Pilot focuses on the vehicle in front,
taking into account lane markings, e.g. when
following vehicles in a traffic jam.
At speeds of more than 37 mph (60 km/h)
Steering Assist focuses on detected lane markings (left and right), and only on the vehi-
cle in front if lane markings are missing.
If these conditions are not present, Steering
Assist and Stop&Go Pilot cannot provide
assistance.
DISTRONIC PLUS must be active in order for
the function to be available.
Important safety notes
If you fail to adapt your driving style,
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot can neither reduce the risk of
an accident nor override the laws of physics.
It cannot take account of road, weather and
traffic conditions. DISTRONIC PLUS with
Steering Assist and Stop&Go Pilot is only an
aid. You are responsible for the distance to
the vehicle in front, for vehicle speed, for
braking in good time and for staying in your
lane.
DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot does not detect road and traf-
fic conditions. If you are following a vehicle
which is driving towards the edge of the road,
your vehicle could come into contact with the
curb or other road boundaries. Be particularly
aware of other road users, e.g. cyclists, that
are directly next to your vehicle.
Obstacles such as building site huts on the
lane or projecting out into the lane are not
detected.
An inappropriate steering intervention, e.g.
after intentionally driving over a lane marking,
can be corrected at any time if you steer
slightly in the opposite direction.
DISTR
ONIC PLUS with Steering Assist and
Stop&Go Pilot cannot continuously keep your
vehicle in lane. In some cases, the steering
intervention is not sufficient to bring the vehi-
cle back to the lane. In such cases, you must
steer the vehicle yourself to ensure that it
does not leave the lane.
Driving systems163
Driving and parking
Z
The support provided by the system can be
impaired if:
Rthere is poor visibility, e.g. due to insuffi-
cient illumination of the road, or due to
snow, rain, fog or spray
Rthere is glare, e.g. from oncoming traffic,
the sun or reflections (e.g. when the road
surface is wet)
Rthe windshield is dirty, fogged up, damagedor covered, for instance by a sticker, in the
vicinity of the camera
Rno, or several, unclear lane markings are
present for one lane, e.g. in a construction
area
Rthe lane markings are worn away, dark or
covered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too
small and the lane markings thus cannot be
detected
Rthe lane markings change quickly, e.g.
lanes branch off, cross one another or
merge
Rthe road is narrow and winding
Rthere are strong shadows cast on the road
The system is switched to passive and no lon-
ger assists you by performing steering inter-
ventions if:
Ryou actively change lanes
Ryou switch on the turn signal
Rtake your hands off the steering wheel or do
not steer for a prolonged period of time
iAfter you have finished changing lanes,
Steering Assist and Stop&Go Pilot are auto-
matically active again.
DISTRONIC PLUS Steering Assist does not
provide assistance:
Ron very sharp corners
Rwhen a loss of tire pressure or a defective
tire has been detected and displayed.
Pay attention also to the important safety
notes for DISTRONIC PLUS (
Ypage 157).
The steering interventions are carried out
with a limited steering moment. The system requires the driver to keep his hands on the
steering wheel and to steer himself.
If you do not steer yourself or if you take your
hands off the steering wheel for a prolonged
period of time, the system will first alert you
with a visual warning. A steering wheel sym-
bol appears in the multifunction display. If you
have still not started to steer and have not
taken hold of the steering wheel
after five
seconds at t
he latest, a warning tone also
sounds to remind you to take control of the
vehicle. Steering Assist and Stop&Go Pilot are
switched to passive. DISTRONIC PLUS
remains active.
Activating Steering Assist and Stop&Go
Pilot
XActivate the DISTRONIC PLUS with Steer-
ing Assist and Stop&Go Pilot function using
the on-board computer (
Ypage 190).
The DTR+:
SteeringAssistantOnmes-
sage appears in the multifunction display.
Steering Assist and Stop&Go Pilot are
active.
Information in the multifunction display
If Steering Assist and Stop&Go Pilot are acti-
vated but not ready for a steering interven-
tion, steering wheel symbol :appears in
gray. If the system provides you with support
by means of steering interventions, sym-
bol :is shown in green.
Deactivating Steering Assist and Stop&Go Pilot
XDeactivate the DISTRONIC PLUS with
Steering Assist and Stop&Go Pilot function
using the on-board computer
(
Ypage 190).
The DTR+: Steering Assistant Off
message appears in the multifunction dis-
164Driving systems
Driving and parking
play. Steering Assist and Stop&Go Pilot are
deactivated.
When DISTRONIC PLUS is deactivated or not
available, Steering Assist and Stop&Go Pilot
are deactivated automatically.
HOLD function
General notes
The HOLD function can assist the driver in the
following situations:
Rwhen pulling away, especially on steep
slopes
Rwhen maneuvering on steep slopes
Rwhen waiting in traffic
The vehicle is kept stationary without the
driver having to depress the brake pedal.
The braking effect is canceled and the HOLD
function deactivated when you depress the
accelerator pedal to pull away.
Important safety notes
GWARNING
When leaving the vehicle, it can still roll away despite being braked by the HOLD function if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe HOLD function has been deactivated by
pressing the accelerator pedal or the brake
pedal, e.g. by a vehicle occupant.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected
There is a risk of an accident.
If you wish to exit the vehicle, always turn off the HOLD function and secure the vehicle
against rolling away.
!If DISTRONIC PLUS or the HOLD function
is activated, the vehicle brakes automati-
cally in certain situations. To prevent damage to the vehicle, deacti-
vate DISTRONIC PLUS and the HOLD func-
tion in the following or other similar situa-
tions:
Rwhen towing the vehicle
Rin the car wash
Activation conditions
You can activate the HOLD function if:
Rthe vehicle is stationary
Rthe engine is running or if it has been auto-
matically switched off by the ECO start/
stop function
Rthe driver's door is closed or your seat beltis fastened
Rthe parking brake is released
Rthe transmission is in position D,Ror N
RDISTRONIC PLUS is deactivated
Activating the HOLD function
XMake sure that the activation conditions
are met.
XDepress the brake pedal.
XQuickly depress the brake pedal further
until ë :appears in the multifunction
display.
The HOLD function is activated. You can
release the brake pedal.
iIf depressing the brake pedal the first
time does not activate the HOLD function,
wait briefly and then try again.
Driving systems165
Driving and parking
Z