The vehicle will be fully unlocked if it had previ-
ously been fully unlocked. If only the driver's
door had been previously unlocked, only the
door which has been opened from the inside is
unlocked.
Automatic locking feature
XTo deactivate:press and hold button :for
approximately five seconds until a tone
sounds.
XTo activate: press and hold button ;for
approximately five seconds until a tone
sounds.
If you press one of the two buttons and do not
hear a tone, the relevant setting has already
been selected.
The vehicle is locked automatically when the
ignition is switched on and the wheels are turn-
ing.
You could therefore be locked out if:
Rthe vehicle is being pushed.
Rthe vehicle is being towed.
Rthe vehicle is being tested on a dynamometer.
You can activate and deactivate the automatic
locking mechanism via the multimedia system
(see the Digital Operator's Manual).
Locking/unlocking the driver's door
with the mechanical key
i
If you want to centrally lock the vehicle using
the mechanical key, begin by pressing the
locking button for the interior locking mech-
anism while the driver's door is open. Then
lock the driver's door using the mechanical
key.
XInsert the mechanical key into opening :in
the protective cap.
XPull and hold the door handle.
XPull the protective cap on the mechanical key
as straight as possible away from the vehicle
until it releases.
XRelease the door handle.
XTo lock: turn the mechanical key clockwise as
far as it will go to position 1.
XTo unlock:turn the mechanical key counter-
clockwise as far as it will go to position 1.
If you use the mechanical key to unlock and
open the driver's door, the anti-theft alarm sys-
tem will be triggered. Switch off the alarm
(
Ypage 76).
Cargo compartment
Important safety notes
GWARNING
Combustion engines emit poisonous exhaust
gases such as carbon monoxide. If the tailgate
is open when the engine is running, particu-
larly if the vehicle is moving, exhaust fumes
84Cargo compartment
Opening and closing
Protect bulbs from moisture during operation.
Do not allow bulbs to come into contact with
liquids.
Replace only the bulbs listed (
Ypage 116).
Have the bulbs that you cannot change yourself
replaced at a qualified specialist workshop.
If you require assistance replacing bulbs, con-
sult a qualified specialist workshop.
If the new bulb still does not light up, consult a
qualified specialist workshop.
Headlamps and lights are an important aspect of
vehicle safety. You must therefore make sure
that these function correctly at all times. Have
the headlamp setting checked regularly.
Vehicles with LED headlamps: the front and
rear light clusters of your vehicle are equipped
with LED bulbs. Do not replace the bulbs your-
self. Contact a qualified specialist workshop
which has the necessary specialist knowledge
and tools to carry out the work required.
Overview of bulb types
You can replace the following bulbs. The bulb
type can be found in the legend.
Halogen headlamps
:Low-beam headlamp: H7 55 W
;High-beam headlamp: H7 55 W
=Turn signal lamp: PY 21 W
Rear lamp cluster
:Backup lamp: W 16 W
Replacing front bulbs (vehicles with
halogen headlamps)
Low-beam headlamps
XSwitch off the lights.
XOpen the hood.
XTurn housing cover :counter-clockwise and
remove it.
XPush bulb holder ;up and pull out.
XPull defective bulb out of bulb holder ;.
XInsert new bulb into bulb holder;.
XInsert bulb holder;into groove with lug at
top.
XPush bulb holder ;down until it engages
audibly.
XPress on housing cover :and turn it clock-
wise.
116Replacing bulbs
Lights and windshield wipers
High-beam headlamps
XSwitch off the lights.
XOpen the hood.
XTurn housing cover:counter-clockwise and
remove it.
XPush bulb holder ;upwards and pull out.
XPull defective bulb out of bulb holder ;.
XInsert new bulb into bulb holder;.
XInsert bulb holder;into groove with lug at
top.
XPush bulb holder ;down until it engages
audibly.
XPress on housing cover :and turn it clock-
wise.
Turn signals
XRemove the cover in the front wheel housing
(Ypage 117).
XTurn bulb holder :counter-clockwise using
the grip under the headlamp casing and
remove it downwards with bulb.
XTurn defective bulb counter-clockwise and
remove it from bulb holder :.
XInsert new bulb into bulb holder :.
XInsert bulb holder:, turn it clockwise and
lock.
XReplace the cover in the front wheel housing
(Ypage 117).
Removing and installing the cover in the
front wheel housing
You must remove the cover of the front wheel
housing before you can change the front turn
signal lamp.
XTo remove: switch off the lights.
XTurn the front wheels inwards.
XTurn rotary knob :180° outwards until it
stops using a suitable object.
Cover ;is released.
XFold cover ;up.
XTo install: insert cover ;into the left, right
and two lower catches.
XTurn rotary knob :180° inwards until it
stops using a suitable object.
Cover ;is locked.
Replacing bulbs117
Lights and windshield wipers
Z
lets. If necessary, redirect the airflow to
another area of the vehicle interior.
In order to ensure the direct flow of fresh air
through the air vents into the vehicle interior,
please observe the following notes:
Rkeep the air inlet between the windshield and
the hood free of blockages, such as ice, snow
or leaves.
Rnever cover the air vents or air intake grilles in
the vehicle interior.
Setting the air vents
Air vents are located:
Ron the left and right-hand side of the dash-
board
Rin the middle of the dashboard
Rin the rear center console, depending on the
equipment installed
Side air vent (example)
:Side window defroster vent
;Side air vent, left
=Control for left side air vent
XTo open or close: turn control=to the
counter-clockwise or clockwise as far as it will
go.
XTo adjust the air direction: hold side air
vent ;by control =and move it up or down
or to the left or right.
Adjusting the rear air vents (see the Digital
Operator's Manual).
130Air vents
Climate control
XSwitch off the engine.
XRemove the SmartKey from the ignition lock.
or, in vehicles with KEYLESS-GO start-function
or KEYLESS ‑GO
XOpen the driver's door.
The vehicle electronics are now in position
u. This is the same as the key having been
removed.
XPress the fuel filler flap in the direction of
arrow:.
The fuel filler flap swings up.
XTurn the fuel filler cap counterclockwise and
remove it.
XInsert the fuel filler cap into the holder on the
inside of fuel filler flap ;.
XCompletely insert the filler neck of the fuel
pump nozzle into the tank, hook in place and
refuel.
XOnly fill the tank until the pump nozzle
switches off. Do not add any more fuel after the pump stops
filling for the first time. Otherwise, fuel may leak
out.
Vehicles with a diesel engine: the filler neck is
designed for refueling at diesel filling pumps.
Closing the fuel filler flap
XReplace the cap on the filler neck and turn
clockwise until it engages audibly.
XClose the fuel filler flap.
Close the fuel filler flap before locking the vehi-
cle.
If you are driving with the fuel filler cap open, the
8 reserve fuel warning lamp flashes. A mes-
sage appears in the multifunction display
(
Ypage 242).
150Refueling
Driving and parking
To avoid transporting already opened refill con-
tainers in the vehicle, completely empty refill
bottles or canisters when filling the DEF tank, ifpossible.
For further information on DEF, see
(
Ypage 367).
Opening/closing the DEF filler cap
XTo open: switch the ignition off.
XPress the fuel filler flap in the direction of
arrow:.
The fuel filler flap swings up.
XTurn blue DEF filler cap ;counter-clockwise
and remove it.
DEF filler cap ;is secured with a plastic
strip.
XTo close: place DEF filler cap ;on the filler
neck and turn it clockwise.
XTo close the fuel filler flap, press it in the
direction of arrow :.
XDrive faster than 10 mph (16 km/h).
TheRefillAdBlueSeeOperator’sMan‐ualmessage goes out after approximately
one minute.
If the Refill AdBlue See Operator’s Man‐
ualmessage continues to be shown in the mul-
tifunction display, you must add more DEF.
iThe fuel filler flap is unlocked or locked
automatically when you unlock or lock the
vehicle.
DEF refill canisters
!Do not screw the disposable hose on too
tight. The disposable hose could otherwise be damaged and DEF may leak out.
XUnscrew the cap from the opening on top of
DEF refill canister ;.
XPlace disposable hose :on the opening of
DEF refill canister ;and screw it on clock-
wise until hand-tight.
Disposable hose :remains closed until you
fasten disposable hose :to the DEF filler
neck of the vehicle.
XPlace disposable hose :on the filler neck on
the vehicle and screw it on clockwise until
hand-tight. When you feel resistance, dispos-
able hose :is sufficiently secured.
XLift up and tip DEF refill canister ;.
Filling stops when the DEF tank is completely
filled. Do not fill the DEF tank any further. DEF
refill canister ;can be removed when it has
been only partially emptied.
XTurn disposable hose :on the filler neck of
the vehicle counter-clockwise and remove it.
XTurn disposable hose :on the opening of
DEF refill canister ;counter-clockwise and
remove it.
XReseal DEF refill canister ;with the cap.
DEF refill canisters are available at many gas
stations or at a qualified specialist workshop.
DEF refill canisters are often sold with a filler
hose. A filler hose that does not exactly fit the
vehicle's DEF tank offers no protection against
Refueling153
Driving and parking
Z
overfilling. DEF may leak if overfilled. Mercedes-
Benz offers a special disposable hose with over-
fill protection. You can obtain this from any
authorized Mercedes-Benz Center. DEF is avail-
able in a variety of containers and receptacles.
Only use the disposable hose with the
Mercedes-Benz DEF refill canisters.
DEF refill bottle
!Only screw on the DEF refill bottle hand-
tight. Otherwise, the thread of the DEF refill
bottle could be damaged and DEF could leak
out.
XUnscrew the protective cap from DEF refill
bottle :.
XPlace DEF refill bottle :on the filler neck as
shown and screw it on clockwise until hand-
tight.
XPress DEF refill bottle :towards the filler
neck.
The DEF tank is filled. This may take up to one
minute.
When DEF refill bottle :is no longer pressed,
filling stops and the bottle may be taken off
again after being only partially emptied.
XRelease DEF refill bottle :.
XTurn DEF refill bottle:counter-clockwise
and remove it.
XScrew the protective cap onto DEF refill bot-
tle : again.
DEF refill bottles are available at many gas sta-
tions or at a qualified specialist workshop. Refill
bottles without a threaded cap do not provide
overfill protection. DEF may leak if overfilled.
Mercedes Benz offers special refill bottles with a
threaded seal. These are available at any author-
ized Mercedes-Benz Center.
Parking
Important safety notes
GWARNING
Flammable material such as leaves, grass or
twigs may ignite if they come into contact with
hot parts of the exhaust system or exhaust
gas flow. There is a risk of fire.
Park the vehicle so that no flammable mate-
rials come into contact with parts of the vehi-
cle which are hot. Take particular care not to
park on dry grassland or harvested grain
fields.
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.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
!Always secure the vehicle correctly against
rolling away. Otherwise, the vehicle or its driv-
etrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
Rthe electric parking brake must be applied.
Rthe transmission must be in position jand
the SmartKey must be removed from the igni-
tion lock.
Rthe front wheels must be turned towards the
curb on steep uphill or downhill gradients.
Rthe empty vehicle must be secured at the
front axle with a wheel chock or similar, for
example, on uphill or downhill gradients.
Ron uphill or downhill gradients the laden vehi- cle must also be secured at the rear axle, for
example with a wheel chock or similar object.
154Parking
Driving and parking
Stowage compartments in the front
Glove box
XTo open:pull handle :and open glove box
flap ;.
XTo close: fold glove box flap ;upwards until
it engages.
Objects in A4 format or an iPad
®, for example,
can be stored in the glove box. For vehicles with
a perfume atomizer (
Ypage 128) the storage
space of the glove box is restricted.
The glove box can only be locked and unlocked
using the mechanical key (Ypage 79).
XTo lock: insert the mechanical key into the
lock and turn it 90° clockwise to position 2.
XTo unlock:insert the mechanical key into the
lock and turn it 90° counter-clockwise to
position 1.
Eyeglasses compartment
XTo open: press marking :.
The eyeglasses compartment opens down.
Make sure that the eyeglasses compartment is
always closed while the vehicle is in motion.
Stowage compartment in the front center
console
XBriefly press trim ;in the direction of the
arrow.
Cover :swings up.
Stowage compartment under the armrest
XTo open: press button :at front.
The stowage space opens.
Stowage areas279
Stowage and features
Z