
Starting the engine with the
SmartKey ....................................... 155
Starting via smartphone ................ 156
Starting with the Start/Stop but-
ton ................................................. 156
Switching off .................................. 173
Tow-starting (vehicle) ..................... 370
Engine electronics
Problem (malfunction) ................... 160
Engine oil
Adding ........................................... 340
Additives ........................................ 412
Checking the oil level ..................... 339
Checking the oil level using the
dipstick .......................................... 339
Display message ............................ 278
Filling capacity ............................... 412
General notes ................................ 411
Notes about oil grades ................... 411
Notes on oil level/consumption .... 339
Viscosity ........................................ 412
ESP
®(Electronic Stability Pro-
gram)
Characteristics ................................. 73
Crosswind Assist ............................. 75
Deactivating/activating ................... 74
Display message ............................ 258
Function/notes ................................ 73
General notes .................................. 73
Important safety information ........... 73
Trailer stabilization ........................... 75
Warning lamp ................................. 296
ETS/4ETS (Electronic Traction Sys-
tem) ...................................................... 73
Exhaust
see Exhaust pipe
Exhaust check ................................... 176
Exhaust pipe
Cleaning ......................................... 349
Exterior lighting
Cleaning ......................................... 348
see Lights
Exterior mirrors
Adjusting ....................................... 119
Dipping (automatic) ....................... 120
Folding in/out (automatically) ....... 119
Folding in/out (electrically) ........... 119 Out of position (troubleshooting) ... 120
Setting ........................................... 119
Storing settings (memory func-
tion) ............................................... 122
Storing the parking position .......... 120
Eyeglasses compartment ................. 307
F
Features............................................. 318
Filler cap
see Refueling
Flat tire
Changing a wheel/mounting the
spare wheel ................................... 395
MOExtended tires .......................... 357
Preparing the vehicle ..................... 356
TIREFIT kit ...................................... 358
Floormats ........................................... 335
Frequencies
Mobile phone ................................. 406
Two-way radio ................................ 406
Fuel
Additives ........................................ 411
Consumption information .............. 411
Consumption statistics .................. 245
Displaying the current consump-
tion ................................................ 244
Displaying the range ...................... 244
Driving tips .................................... 176
E10 ................................................ 410
Fuel gauge ....................................... 33
Grade (gasoline) ............................ 410
Important safety notes .................. 409
Problem (malfunction) ................... 172
Refueling ........................................ 169
Tank content/reserve fuel ............. 410
Fuel filler flap
Opening ......................................... 170
Fuel level
Calling up the range (on-board
computer) ...................................... 244
Fuel tank
Capacity ........................................ 410
Problem (malfunction) ................... 172
Fuses
Allocation chart ............................. 372
Before changing ............................. 370
10Index

Dashboard fuse box ....................... 371
Fuse box in the cargo compart-
ment .............................................. 372
Fuse box in the engine compart-
ment .............................................. 371
Fuse box in the front-passenger
footwell .......................................... 371
Important safety notes .................. 370
G
Garage door openerClearing the memory ..................... 335
General notes ................................ 332
Important safety notes .................. 332
Opening/closing the garage doo r..3 35
Programming (button in the rear-
view mirror) ................................... 333
Synchronizing the rolling code ....... 333
Gasoline ............................................. 410
Genuine parts ...................................... 22
Glove box ...........................................3 07
H
HANDS-FREE ACCESS.......................... 94
Hazard warning lamps ......................127
Head restraints
Adjusting (electrically) ................... 112
Adjusting (manually) ......................1 11
Adjusting (rear) .............................. 112
Adjusting the fore-and-aft posi-
tion manually ................................. 111
General notes ................................ 111
Important safety notes .................. 111
Installing/removing (rear) .............. 112
Head-up display
Adjusting the brightness ................ 255
Displays and operating .................. 242
Function/notes .............................2 41
Important safety notes .................. 241
Selecting displays .......................... 254
Setting the position ....................... 254
Storing settings (memory func-
tion) ............................................... 122
Headlamps
Cleaning system (notes) ................ 413
Fogging up ..................................... 128 see Automatic headlamp mode
Heating
see Climate control
High beam flasher .............................1 26
High-beam headlamps
Adaptive Highbeam Assist ............. 127
Changing bulbs .............................. 131
Display message ............................ 274
Switching on/off ........................... 126
Hill start assist .................................. 157
HOLD function
Activating ....................................... 195
Activation conditions ..................... 194
Deactivating ................................... 195
Display message ............................ 282
Function/notes .............................1 94
General notes ................................ 194
Hood
Closing ...........................................3 39
Display message ............................ 288
Important safety notes .................. 338
Opening ......................................... 338
Horn ...................................................... 32
HUD
see Head-up display
Hydroplaning ..................................... 180
I
Ignition lock
see Key positions
Immobilizer .......................................... 78
Indicator and warning lamps
COLLISION PREVENTION ASSIST
PLUS .............................................. 301
Indicator lamps
see Warning and indicator lamps
Insect protection on the radiator .... 339
Instrument cluster
Overview .......................................... 33
Warning and indicator lamps ........... 34
Instrument cluster lighting .............. 238
Interior lighting
Control ...........................................1 29
Emergency lighting ........................ 130
Overview ........................................ 129
Reading lamp ................................. 129
Index11

Recognition by theradar sensor system is
also impaire din th eevent of:
Rthere is dir ton th esensor sor anythin gelse
coverin gth esensor s
Rthere is interferenc eby other radar source s
Rthere are strongradar reflections, for
exampl ein parkin ggarages
Ranarrow vehicl etravelin gin front, e.g. a
motorbik e
Ravehicl etravelin gin fron ton adifferen tlin e
relative to th ecenter of your vehicl e
Recognition by th ecamera system is also
impaire din th eevent of:
Rdir ton th ecamera or if th ecamera is cov-
ere d
Rthere is glar eon th ecamera system, e.g.
from th esun bein glow in th esk y
Rdarkness
Rif:
-pedestrian smov equickly, e.g. into th e
pat hof th evehicl e
-thecamera system no longer recognizes
a pedestrian as aperson due to special
clothin gor other objects
-apedestrian is concealed by other
objects
-th etypical outlin eof aperson is no tdis-
tinguishable from th ebackgroun d
Followin gdamag eto th efron ten dof th evehi-
cle ,hav eth econfiguration and operation of
th eradar sensor schecke dat aqualified spe -
cialist workshop .This also applie sto colli-
sion sat low speeds wher ethere is no vis ible
d
amag eto th efron tof th evehicle.
Followin gdamag eto th ewindshield, hav eth e
configuration and operation of th ecamera
system checke dat aqualified specialist work-
shop.
Function
XTo activate/deactivate: activateor deac -
tivat ePRE-SAF E®Brake in th eon-boar d
computer (
Ypage 253).
If th ePRE-SAF E®Brake is no tactivated, th e
æ symbol appear sin th emultifunction
display.
Startin gat aspeed of around 4mph (7 km/h),
this function warn syou if you rapidly
approac h avehicl ein front. An intermittent
warnin gtone will then soun dand th e·
distanc ewarnin glamp will ligh tup in th e
instrumen tcluster.
XBrake immediately to defuse th esituation .
or
XTak eevasive action provided it is saf eto do
so.
PRE-SAF E
®Brake can also brak eth evehicl e
automatically under th efollowin gconditions:
Rth edriver and front-passenger hav etheir
seat belt sfastene d
and
Rth evehicl espeed is between approx -
imately 4mph (7 km/h) and 12 4mph
(20 0km/h)
At speeds of up to approximately 44 mph
(70 km/h) PRE-SAF E
®Brake can also detect:
Rstationary objects in th epat hof your vehi-
cle ,e.g. stoppe dor parked vehicles
Rpedestrian sin th epat hof your vehicl e
iIf there is an increase dris kof acollision ,
preventive passenger protection measures
(PRE-SAF E
®)are activated (Ypage 59).
If th eris kof collision wit hth eve
hicl ein fron t
remain sand you do no tbrake, tak eevasive
action or accelerate significantly, th evehicl e
may perfor mautomatic emergenc ybraking,
up to th epoin tof full brak eapplication .Auto-
matic emergenc ybrakin gis no tperformed
until immediately prior to an imminen tacci-
dent.
Driving safety systems77
Safety
Z

Drivingwit hDISTRONI CPLUS
Pullin gawa yan ddrivin g
XIf you wan tto pull awa ywit h
DISTRONI CPLUS :remov eyour foot from
th ebrake pedal.
XBriefly pull th ecruise contro llever toward s
you :.
or
XAccelerat ebriefly.
Your vehicle pulls away and adapt sits
speed to that of th evehicle in front. If no
vehicle is detecte din front, your vehicle
accelerates to th eset speed.
iThe vehicle can also pull away when it is
facin gan unidentifie dobstacl eor is drivin g
on adifferen tlin efrom another vehicle. The
vehicle then brake sautomatically. There is
a ris kof an accident. Be ready to brake at all
times .
If there is no vehicle in front, DISTRONIC
PLU Soperates in th esam eway as cruise
control.
If DISTRONIC PLU Sdetects that th evehicle in
fron thas slowed down ,it brake syour vehicle.
In this way, th edistanc eyou hav eselecte dis
maintained.
If DISTRONIC PLU Sdetects afaster-movin g
vehicle in front, it increase sth edrivin gspeed.
However, th evehicle is only accelerated up to
th espeed you hav estored. Selecting th
edrive program
DISTRONIC PLU Ssupports asport ydrivin g
style when you hav eselecte dth eS or S+
drivin gprogram (
Ypage 166). Acceleration
behin dth evehicle in fron tor to th eset speed
is then noticeably more dynamic .If you hav e
selecte dth eC or Edrivin gprogram, th evehi-
cl e accelerates more gently. Thi ssetting is
recommended in stop-and-start traffic .
Changin glanes
If you chang eto th epassin glane, DISTRONIC
PLU Ssupports you when :
Ryou are drivingfaste rthan 45 mph
(70 km/ h)
Ryou switch on th eappropriat etur nsignal
RDISTRONIC PLU Sdoe sno tdetec t adanger
of collision
If these condition sare fulfilled ,your vehicl eis
accelerated. Acceleration will be interrupted
if changin glanes take sto olon gor if th edis-
tanc ebetween your vehicl eand th evehicl ein
fron tbecome sto osmall.
iWhe nyou chang elanes, DISTRONIC
PLU Smonitor sth elef tlan eon left-hand-
drive vehicles or th eright lan eon right -
hand-drive vehicles.
Stopping
GWARNIN G
Whe nleavin gth evehicle, eve nif it is brake d
only by DISTRONIC PLUS, it could roll away if:
Rthere is amalfunction in th esystem or in
th evoltage supply.
RDISTRONIC PLU Shas been deactivated
wit hth ecruise contro llever, e.g. by avehi-
cle occupant or from outside th evehicle.
Rth eelectrica lsystem in th eengin ecom-
partment, th ebattery or th efuses hav e
been tampered with.
Rth ebattery is disconnected.
Rth eaccelerator peda lhas been depressed,
e.g. by avehicl eoccupant .
There is aris kof an accident.
Driving systems18 7
Driving an d parking
Z

If Steering Assist and Stop&Go Pilot are acti-
vated but is 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
XPress button ;.
Indicator lamp :goes out. The DTR+:
SteeringAssist.Offmessage appears
in the multifunction display. 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
Deactivating the HOLD function
(
Ypage 195).
Activation conditions
You can activate the HOLD function if all of
the following conditions are fulfilled:
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 belt
is fastened.
Rthe electric parking brake is released.
Rthe transmission is in position D,R or N.
RDISTRONIC PLUS is deactivated.
194Driving systems
Driving and parking

:Detected parking space on the left
;Parking symbol
=Detected parking space on the right
Active Parking Assist is switched on automat-
ically when driving forwards. The system is
operational at speeds of up to approximately
22 mph (35 km/h). While in operation, the
system independently locates and measures
parking spaces on both sides of the vehicle.
Active Parking Assist will only detect parking
spaces:
Rparallel or at right angles to the direction of
travel
Rthat are parallel to the direction of travel
and at least 59 in (1.5 m) wide
Rthat are parallel to the direction of travel
and at least 39.5 in (1.0 m) longer than your
vehicle
Rthat are at right angles to the direction of
travel and at least 39.5 in (1.0 m) wider
than your vehicle
iNote that Active Parking Assist cannot
measure the size of a parking space if it is at
right angles to the direction of travel. You
will need to judge whether your vehicle will
fit into the parking space.
When driving at speeds below 19 mph
(30 km/h), you will see the parking symbol as
a status indicator in the instrument cluster.
When a parking space h
as been detected, an
arrow towards the right or the left also
appears. By default, Active Parking Assist
only displays parking spaces on the front-
passenger side. Parking spaces on the driv- er's side are displayed as soon as the turn
signal on the driver's side is activated. When
parking on the driver's side, this must remain
switched on until you acknowledge the use of
Active Parking Assist by pressing the
a
button on the multifunction steering wheel.
The system automatically determines
whether the parking space is parallel or at
right angles to the direction of travel.
A parking space is displayed while you are
driving past it, and until you are approx-
imately 50 ft (15 m) awayfrom it .
Parking
GWARNING
If you leave the vehicle when it is only being
braked by Active Parking Assist it could roll
away if:
Rthere is a malfunction in the system or in
the voltage supply.
Rthe electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
Rthe battery is disconnected.
Rthe accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
Before leaving the vehicle, always secure it
against rolling away.
iWhen PARKTRONIC detects obstacles,
Active Parking Assist brakes automatically
during the parking process. You are respon-
sible for braking in good time.
XStop the vehicle when the parking space
symbol shows the desired parking space in
the instrument cluster.
XShift the transmission to position R.
The Start Park Assist?Yes: OKNo:
% message appears in the multifunction
display.
Driving system s203
Driving an d parking
Z

Useful information............................354
Where will I find...? ...........................354
Flat tire .............................................. 356
Battery (vehicle) ................................ 361
Jump-starting .................................... 365
Towing and tow-starting ..................367
Fuses .................................................. 370
353
Breakdown assistance

XTurn the SmartKey to position0in the igni-
tion lock and remove it.
XSecure the vehicle.
Notes on 4MATIC vehicles
!
Vehicles with 4MATIC must not be towed
with either the front or the rear axle raised,
as doing so will damage the transmission.
Vehicles with 4MATIC may either be towed
away with both axles on the ground or be loa- ded up and transported.
If the vehicle's transmission, front, or rear
axle is damaged, have the vehicle transported
on a truck or trailer.
In the event of damage to the electrical
system: if the battery is defective, the auto-
matic transmission will be locked in position
P. To shift the automatic transmission to posi-
tion N, you must provide power to the vehi-
cle's electrical system in the same way as
when jump-starting (
Ypage 365).
Have the vehicle transported on a transporter
or trailer.
Tow-starting (emergency engine
starting)
!
Vehicles with automatic transmission
must not be tow-started. You could other-
wise damage the automatic transmission.
iYou can find information on "Jump-start-
ing" under (
Ypage 365).
Fuses
Important safety notes
GWARNING
If you manipulate or bridge a faulty fuse or if
you replace it with a fuse with a higher amper- age, the electric cables could be overloaded.
This could result in a fire. There is a risk of an
accident and injury.
Always replace faulty fuses with the specifiednew fuses having the correct amperage.
Blown fuses must be replaced with fuses of
the same rating, which you can recognize by
the color and value. The fuse ratings are listed
in the fuse allocation chart.
If a newly inserted fuse also blows, have the
cause traced and rectified at a qualified spe-
cialist workshop, e.g. an authorized
Mercedes-Benz Center.
!Only use fuses that have been approved
for Mercedes-Benz vehicles and which
have the correct fuse rating for the system concerned. Otherwise, components or sys-
tems could be damaged.
The fuses in your vehicle serve to close down
faulty circuits. If a fuse blows, all the compo-
nents on the circuit and their functions stop
operating.
Before changing a fuse
Observe the important safety notes
(
Ypage 370)
XSecure the vehicle against rolling away
(
Ypage 172).
XSwitch off the engine.
XSwitch off all electrical consumers.
XRemove the SmartKey from the ignition
lock.
or, in vehicles with KEYLESS-GO start-func-
tion or KEYLESS ‑GO
XOpen the driver's door.
The on-board electronics now have status
0. This is the same as the SmartKey having
been removed.
The driver’s door can be closed again.
All indicator lamps in the instrument cluster
must be off.
The fuses are located in various fuse boxes:
RFuse box on the driver's side of the dash-
board
RFuse box in the front-passenger footwell
370Fuses
Breakdown assistance