Therefore, quickly move your foot from the
brake pedal to the accelerator pedal. Never
leave the vehicle when it is held by hill start
assist.
Hill start assist is not active if:
Ryou are pulling away on a level road or on a
downhill gradient.
Rthe transmission is in position N.
Rthe electric parking brake is applied.
RESP®is malfunctioning.
ECO start/stop function (all vehicles
except PLUG‑IN HYBRID)
Introduction
This section describes the ECO start/stop func- tion for all vehicles except PLUG-IN HYBRID
vehicles. Information on the ECO start/stop
function on PLUG-IN HYBRID vehicles
(
Ypage 252).
The ECO start/stop function switches the
engine off automatically if the vehicle is stopped
under certain conditions.
The engine starts automatically when the driver
wants to pull away again. The ECO start/stop
function thereby helps you to reduce the fuel
consumption and emissions of your vehicle.
Important safety notes
GWARNING
If the engine is switched off automatically and
you exit the vehicle, the engine is restarted
automatically. The vehicle may begin moving.
There is a risk of accident and injury.
If you wish to exit the vehicle, always turn off
the ignition and secure the vehicle against
rolling away.
General notes
:ECO start/stop display
The ECO start/stop function is activated when-
ever you switch on the engine using the Smart-
Key or the Start/Stop button.
If the engine has been switched off automati-
cally by the ECO start/stop function, the è
ECO symbol is shown in the multifunction dis-
play.
The ECO start/stop function is only available in drive program E(drive program Con Mercedes-
AMG vehicles).
Automatic engine switch-off
If the vehicle is braked to a standstill in Dor N,
the ECO start/stop function switches off the
engine automatically.
The ECO start/stop function is operational
when:
Rthe indicator lamp in the ECO button is lit
green.
Rthe outside temperature is within the range
that is suitable for the system.
Rthe engine is at normal operating tempera-
ture.
Rthe set temperature for the vehicle interior
has been reached.
Rthe battery is sufficiently charged.
Rthe system detects that the windshield is not
fogged up when the air-conditioning system is
switched on.
Rthe hood is closed.
Rthe driver's door is closed and the driver's
seat belt is fastened.
All of the vehicle's systems remain active when
the engine is stopped automatically.
The HOLD function can be activated if the
engine has been switched off automatically. It is
166Driving
Driving and parking
Automa tic trans mission
Import ant safety notes
GWARNIN G
If th eengin espee dis abov eth eidlin gspee d
and you engage transmission position Dor R,
th evehicl ecould pull away suddenly. There is
a ris kof an accident.
When engagin gtransmission position Dor R,
always firmly depress th ebrak epedal and do
no tsimultaneously accelerate .
GWARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off th eengine.
The vehicl emay rol laway. There is aris kof an
accident.
Afte rswitching off th eengine, always switch
to parking position P.Preven tth eparked vehi-
cle from rollin gaway by applyin gth eparking
brake.
Observ eth eimportant safet ynote sfor PLUG-I N
HYBRID vehicles (
Ypage 42).
DIRECT SELECT lever
Overview oftrans mission positions
jPark position wit hparking loc k
kReverse gear
iNeutral
hDrive
The DIRECT SELECT lever is on th eright of th e
steering column . The DIRECT SELECT lever always return
sto it s
original position .The curren ttransmission posi-
tion P,R,N or Dappear sin th etransmission
position display (
Ypage 172) in themultifunc-
tion display.
Engaging pa rkposition P
!If th eengin espee dis to ohigh or th evehicl e
is moving ,do no tshif tth eautomatic trans -
mission directl yfrom Dto R,from Rto Dor
directl yto P. The automatic transmission
could otherwise be damaged.
jPark position wit hparking loc k
kReverse gear
iNeutral
hDrive
XPush theDIRECT SELECT lever in th edirection
of arrow P.
Engaging pa rkposition P automatically
Park position Pis automatically engage dif:
Ryou switch off th eengin eusin gth eSmartKey
and remove th eSmartKey
Ryou switch off th eengin eusin gth eSmartKey
or usin gth eStart/Sto pbutto nand open th e
driver's door or front-passenger door
Rth edriver's door is opened when th evehicl eis
stationary or drivin gat ver ylow spee dand th e
transmission is in position Dor R
Under certain conditions, th eautomatic trans -
mission shifts automatically to transmission
position Pif th eHOLD function or DISTRONI C
PLU Sis activated. Observ eth einformation on
th eHOLD function (
Ypage 209) and on
DISTRONI CPLU S (Ypage 203).
170Automatic transmission
Driving an d parking
Problems with the transmission
ProblemPossible causes/consequences andMSolutions
The transmission has
problems shifting gear.The transmission is losing oil.
XHave the transmission checked at a qualified specialist workshop
immediately.
The acceleration ability
is deteriorating.
The transmission no lon-
ger changes gear.The transmission is in emergency mode.
7G-TRONIC:it is only possible to shift into secondgear and reverse
gear.
9G-TRONIC: it is only partly possible to engage the gears or the trans-
mission is in position N.
XStop the vehicle.
XShift the transmission to position P.
XSwitch off the engine.
XWait at least ten seconds before restarting the engine.
XShift the transmission to positionDor R.
7G-TRONIC: IfD is selected, the transmission shifts into second
gear, if Ris selected, the transmission shifts into reverse gear.
XHave the transmission checked at a qualified specialist workshop
immediately.
Problems with PLUG-IN HYBRID operation (Ypage 254).
Transfer case
This section is only valid for vehicles with 4-
wheel drive (4MATIC). Power is always trans-
mitted to both axles.
!Performance tests may only be carried out
on a 2-axle dynamometer. The brake system
or transfer case could otherwise be damaged. Contact a qualified specialist workshop for a
performance test.
!Since ESP®engages automatically, the igni-
tion must be switched off (the SmartKey or
Start/Stop button must be in position 0or 1)
if:
Rthe electric parking brake is being tested
on a brake dynamometer
Rthe vehicle is being towed with only one
axle raised (not permitted for vehicles with
4MATIC).
The brake system could otherwise be dam-
aged.
!Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised, as doing so will damage the transmission.
Refueling
Important safety notes
GWARNING
Fuel is highly flammable. If you handle fuel
incorrectly, there is a risk of fire and explo-
sion.
You must avoid fire, open flames, creating
sparks and smoking. Switch off the engine
and, if applicable, the auxiliary heating before refueling.
GWARNING
Fuel is poisonous and hazardous to health.
There is a risk of injury.
You must make sure that fuel does not come into contact with your skin, eyes or clothing
Refueling177
Driving and parking
Z
Switching off the engine
Important safety notes
GWARNING
The automatic transmission switches to neu-
tral position Nwhen you switch off the engine.
The vehicle may roll away. There is a risk of an
accident.
After switching off the engine, always switch
to parking position P. Prevent the parked vehi-
cle from rolling away by applying the parking
brake.
Using the SmartKey
XApply the electric parking brake.
XShift the transmission to position P.
XTurn the SmartKey to position0in the ignition
lock and remove it.
The immobilizer is activated.
If you switch the engine off with the trans-
mission in position Ror D, the automatic
transmission shifts to Nautomatically.
If you then open the driver's door or the front-
passenger door or remove the SmartKey from the ignition, the automatic transmission shifts
to Pautomatically.
If you want the automatic transmission to
remain in neutral N, e.g. when having the vehicle
cleaned in an automatic car wash with a towing system:
XSwitch on the ignition.
XDepress the brake pedal and keep it
depressed.
XShift to neutral N.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the SmartKey
in the ignition lock.
Using the Start/Stop button
XApply the electric parking brake.
XShift the transmission to position P.
XPress the Start/Stop button (Ypage 162)
The engine stops and all the indicator lamps in
the instrument cluster go out. When the driver's door is closed, this corre-
sponds to SmartKey position
1. When the
driver's door is open, this corresponds to
SmartKey position 0: "SmartKey removed".
If you switch the engine off with the transmis-
sion in position Ror D, the automatic transmis-
sion shifts to Nautomatically.
If you then open the driver's or front-passenger door, the automatic transmission shifts to P
automatically.
If you want the automatic transmission to
remain in neutral N, e.g. when having the vehicle
cleaned in an automatic car wash with a towing
system:
XSwitch on the ignition.
XDepress the brake pedal and keep it
depressed.
XRemove the Start/Stop button from the igni-
tion lock.
XInsert the SmartKey into the ignition lock.
XShift to neutral N.
XRelease the brake pedal.
XRelease the electric parking brake.
XSwitch off the ignition and leave the SmartKey
in the ignition lock.
The engine can be switched off in an emergency
while the vehicle is in motion by pressing and
holding the Start/Stop button for three sec-
onds. This function operates independently of
the ECO start/stop automatic engine switch-off
function.
Electric parking brake
General notes
GWARNING
If you leave children unsupervised in the vehi-
cle, they could set it in motion by, for example:
Rrelease the parking brake.
Rshift the automatic transmission out of the
parking position P.
Rstart the engine.
In addition, they may operate vehicle equip-
ment and become trapped. There is a risk of
an accident and injury.
190Parking
Driving and parking
Limited braking performance on salt-
treated roads
If you drive on salted roads, a layer of salt resi-
due may form on the brake discs and brake
pads. This can result in a significantly longer
braking distance.
RIn order to prevent any salt build-up, apply the
brakes occasionally while paying attention to the traffic conditions.
RCarefully depress the brake pedal and the
beginning and end of a journey.
RMaintain a greater distance to the vehicle
ahead.
Servicing the brakes
!The brake fluid level may be too low, if:
Rif the red brake warning lamp lights up in
the instrument cluster and
Ryou hear a warning tone while the engine is
running
Observe additional warning messages in the
multifunction display.
The brake fluid level may be too low due to
brake pad wear or leaking brake lines.
Have the brake system checked immediately.
Consult a qualified specialist workshop to
arrange this.
!Vehicles with 4MATIC: function or per-
formance tests may only be carried out on a 2-
axle dynamometer. If you wish to operate the
vehicle on such a dynamometer, please con-
sult a qualified specialist workshop in
advance. You could otherwise damage the
drive train or the brake system.
!Vehicles with 4MATIC: the ESP®system
operates automatically. The engine and the
ignition must therefore be switched off (the
SmartKey must be in position 0or 1in the
ignition lock or the Start/Stop button must be
in position 0or 1) if the electric parking brake
is tested on a brake dynamometer.
Braking triggered automatically by ESP
®may
cause severe damage to the brake system.
!Vehicles without 4MATIC: the ESP®sys-
tem operates automatically. The engine and
the ignition must therefore be switched off
(the SmartKey must be in position 0or 1in the
ignition lock or the Start/Stop button must be
in position 0or 1) if:
Rthe electric parking brake is tested using a
brake dynamometer.
Rthe vehicle is towed with one axle raised.
Braking triggered automatically by ESP®may
cause severe damage to the brake system.
All checks and maintenance work on the brake
system must be carried out at a qualified spe-
cialist workshop.
Have brake pads installed and brake fluid
replaced at a qualified specialist workshop.
If the brake system has only been subject to
moderate loads, you should test the functional-
ity of your brakes at regular intervals.
Information on BAS (Brake Assist) (
Ypage 69)
and BAS PLUS (Brake Assist PLUS) (Ypage 69).
For safety reasons, Mercedes-Benz recom-
mends only installing the following brake disks
and brake pads/linings:
Rbrake disks that have been approved by
Mercedes-Benz
Rbrake pads/linings that have been approved
by Mercedes-Benz or that are of an equivalent
standard of quality
Other brake disks or brake pads/linings can
compromise the safety of your vehicle.
Always replace all brake disks and brake pads/
linings on an axle at the same time. Always
install new brake pads/linings when replacing
brake disks.
The vehicle is equipped with lightweight brake
disks to which the wheel assembly with rim and
threaded connection is matched.
The use of brake disks other than those
approved by Mercedes-Benz can change the
track width and is subject to approval, if appli-
cable.
Shoc
k-type loads when handling the brake
discs, such as when changing wheels, can lead
to a reduction in comfort when driving with light-
weight brake discs. Avoid shock-type loads on
the lightweight brake disks, particularly on the
brake plate.
Mercedes-Benz recommends that you only use
brake fluid that has been specially approved for
your vehicle by Mercedes-Benz, or which corre-
Driving tips195
Driving and parking
Z
iCruise controlisnot deactivated ifyou
depr ess the accelerator pedal. Ifyou acceler-
ate to overtake, cruise control adjusts the
veh icle's speed to the last speed stored after
you have finished overtaking.
Deactivating cruise control
There are several ways to deactivate cruise con-
trol:
XBriefly press cruise the control lever for-
wards :.
or
XBrake.
Cruise control isautomatically deactivated if:
Ryou engage the electr icparking brake
Ryou are driving at less than 20 mph (30 km/h)
RESP®intervenes or you deactivate ESP®
Ryou shift the transmission to position Nwhile
driv ing
If cruise control isdeactivate d,you willhear a
warning tone. You willsee the Cruise Con‐
trol Offmessage inthe multifunction display
for approximate lyfive seconds.
iWhen you switch off the engine, the last
speed stored iscleared.
DISTRONIC PLUS
General notes
DI ST RONIC PLUS regulates the speed and auto-
matically helps you maintain the distance to the
veh icle detected infront. Vehicle s are detected
wit h the aid of the radar sensor system.
DI ST RONIC PLUS brakes automatically so that
the set speed is not excee ded.Change into a lower gear in good time on long
and steep
downhillgradients. This isespecially
important ifthe 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 wear-
ing too quickly.
If DI ST RONIC PLUS detects that there isa risk of
a collision, you will bewarned visually and
acoustically. DI STRONIC PLUS cannot prevent a
collision without your intervention. An intermit-
tent warning tone will then sound and the dis-
tance warning lamp willlight up in the instru-
ment cluster. Brake immediately inorder to
increase the distance to the vehicle in front or
take evasive action provided it issafe to doso.
DISTRONIC PLUS operates inrange between
0 mph (0 km/ h)and 120 mph (200km/ h).
Do not use DISTRONIC PLUS while driving on
roads with steep gradients.
As DISTRONIC PLUS transmits radar waves, it
can resemble the radar de tectors o
f the respon-
sible authorities. You can refer to the relevant
chapter in the Operator's Manual if questions
are asked about this.
iUSA only: This device has been approved by
the FCC as a "Vehicular Radar System". The
radar sensor is intended for use in an auto-
motive radar system only. Removal, tamper-
ing, or altering of the device will void any war-
ranties, and is not permitted by the FCC. Do
not tamper with, alter, or use in any non-
approved way.
Any unauthorized modification to this device
could void the user's authority to operate the
equipment.
iCanada only: This device complies with
RSS-210 of Industry Canada. Operation is
subject to the following two conditions:
1. This device may not cause harmful inter-
ference, and
2. This device must accept any interference
received, including interference that may
cause undesired operation of the device.
Removal, tampering, or altering of the device
will void any warranties, and is not permitted.
Do not tamper with, alter, or use in any non-
approved way.
Any unauthorized modification to this device
could void the user's authority to operate the equipment.
Driving system s199
Driving an d parking
Z
Display when DISTRONIC PLUS is activa-
te d
:DISTRONIC PLU Sactive (tex tonly appears
when th ecruise control lever is actuated)
;Vehicl ein front, if detecte d
=Specified minimum distanc eto th evehicl e
in front; adjustable
?Own vehicl e
In th eAssistance men u (
Ypage 269) of theon -
boar dcomputer, you can select th eassistanc e
graphic sdisplay.
XSelec tth eAssistanc eGraphi cfunction
usin gth eon-boar dcomputer (Ypage 268).
You will see th estore dspeed fo rabout fiv esec -
onds when you activat eDISTRONIC PLUS.
Deactivate sDISTRONIC PLUS
There are severa lways to deactivat e
DISTRONIC PLUS:
XBriefly press th ecruise control lever for-
ward s:
or
XBrake ,unless th evehicl eis stationary
Whe nyou deactivat eDISTRONIC PLUS, you will
see th eDISTRONIC PLU SOff
message in th emultifunction display fo
rapproximately fiv esec -
onds.
iThe last speed store dremain sstore duntil
you switch of fth eengine.
iDISTRONIC PLU Sis no tdeactivated if you
depress th eaccelerato rpedal.
DISTRONIC PLU Sis automatically deactivated
if:
Ryou engage th eelectric parkin gbrak eor if th e
vehicl eis automatically secured wit hth eelec -
tric parkin gbrak e
RESP®intervenes or you deactivat eES P®
Rthetransmissio nis in th eP, Ror Nposition
Ryou pull th ecruise control lever toward syou
in order to pull away and th efront-passenger
doo ror on eof th erea rdoors is ope n
Rthevehicl ehas skidde d
Ryou activat eActive Parking Assis t
If DISTRONIC PLU Sis deactivated, you will hear
a warnin gtone .You will see th eDISTRONIC
PLU SOffmessage in th emultifunction display
fo rapproximately fiv eseconds.
Tips for drivin gwit hDISTRONIC PLUS
General notes
Pay particular attention in th efollowing traffic
situations:
RCornering, goin ginto and comin gout of a
ben d
RVehicles travelin gon adifferen tlin e
ROther vehicles changin glanes
RNarrow vehicles
RObstruction sand stationary vehicles
RCrossing vehicles
In suc hsituations, brak eif necessary.
DISTRONIC PLU Sis then deactivated.
Driving systems20 5
Driving an d parking
Z
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 mod-
erate steering interventions at speeds of
0 - 125 mph (0 - 200 km/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 vehi-
cles in a traffic jam.
At speeds of more than 37 mph (60 km/h)
Steering Assist focuses on detected lane mark-
ings (left and right), and only on the vehicle in
front if lane markings are missing.
Steering Assist and Stop&Go Pilot do not pro-
vide any support if these conditions do not exist.
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 responsi ble
fo
r the distance to the vehicle in front, for vehi-
cle speed, for braking in good time and for stay-
ing in your lane. DISTRONIC PLUS with Steering Assist and
Stop&Go Pilot does not detect road and traffic
conditions. If you are following a vehicle which is
driving towards the edge of the road, your vehi-
cle 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 theopposite direction.
DISTRONIC 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 vehicle
back to the lane. In such cases, you must steer the vehicle yourself to ensure that it does not
leave the lane.
The support provided by the system can be
impaired if:
Rthere is poor visibility, e.g. due to insufficient
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, damaged or
covered, for instance by a sticker, in the vicin-
ity of the camera
Rthere are no, several or unclear lane markings
for a lane, e.g. in areas with road construction
work
Rthe lane markings are worn away, dark or cov-
ered up, e.g. by dirt or snow
Rthe distance to the vehicle in front is too small
and the lane markings thus cannot be detec-
ted
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 longer
assists you by performing steering interventions
if:
Ryou actively change lane
Ryou switch on the turn signal
Rtake your hands off the steering wheel or do
not steer for a prolonged period of time
Driving system s207
Driving an d parking
Z