
Using KEYLESS-GO to start the engine
G
WARNING
As long as the SmartKey is in your vehicle, the
vehicle can be started. Therefore, neve rleave
children unattended in the vehicle, as they
could otherwise accidentally start the engine.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Do
not leave children unattended in the vehicle,
or with access to an unlocked vehicle. A
child's unsupervised access to a vehicle could
result in an acciden tand/o rserious personal
injury.
i The Start/Stop button can be used to
start the vehicle manually without inserting
the SmartKey into the ignition lock. The
Start/Stop button must be inserted into
the ignition lock and the SmartKey must be
in the vehicle. This mode for starting the
engine operates independently of the ECO
start/stop automatic engine start function.
X Depress the brake pedal and keep it
depressed.
X Press Start/Stop button (Y page 136)
once.
The engine starts. Pulling away
Manual transmission !
Change gear in good time and avoid
spinning the wheels. You could otherwise
damage the vehicle.
X Depress the brake pedal and keep it
depressed.
X Fully depress the clutch pedal.
X Shift to either first gear or reverse gear R.
X Release the electric parking brake
(Y page 156).
X Release the brake pedal.
X Slowly release the clutch pedal and gently
depress the accelerator pedal. i
The vehicle locks centrally once you have
pulled away .The locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic
locking feature (Y page 206).
Automatic transmission G
WARNING
If the engine speed is above the idling speed
and you engage transmission position Dor
R, the vehicle could pull away suddenly. There
is a risk of an accident.
When engaging transmission position Dor R,
always firmly depress the brake pedal and do
not simultaneously accelerate.
i It is only possible to shift the transmission
from position Pto the desired position if
you depress the brake pedal. Only then is
the shift lock released.
X Depress the brake pedal and keep it
depressed.
X Shift the transmission to position Dor R.
X Release the brake pedal.
X Carefully depress the accelerator pedal.
The electric parking brake (Y page 156) is
automatically released.
The red 0005(USA only) or 000A(Canada
only) indicator lamp in the instrument
cluster goes out.
i The vehicle locks centrally once you have
pulled away.T he locking knobs in the doors
drop down.
You can open the doors from the inside at
any time.
You can also deactivate the automatic
locking feature (Y page 206).
i Upshifts take place at higher engine
speeds after a cold start. This helps the
catalytic converter to reach its operating
temperature more quickly. 138
DrivingDriving and parking 

Problems with fuel and the fuel tank
Problem Possible causes/consequences and
0001 Solutions
Fuel is leaking from the
vehicle. The fuel line or the fuel tank is faulty.
G WARNING
There is a risk of fire or explosion.
X Turn the SmartKey to position 0in the ignition lock and remove
it immediately (Y page 135).
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop. The fuel filler flap
cannot be opened. The fuel filler flap is not unlocked.
or
The SmartKey battery is discharged.
X
Unlock the vehicle (Y page 71).
or
X Unlock the vehicle using the mechanical key (Y page 72).The fuel filler flap is unlocked, but the opening mechanism is
jammed.
X
Consult a qualified specialist workshop. Parking
Important safety notes
G
WARNING
If flammable materials such as leaves, grass
or twigs are exposed to prolonged contact to
parts of the exhaust system that heat up, they
could ignite. There is a risk of fire.
Park the vehicle so that no flammable
materials come into contact with parts of the
vehicle which are hot. Take particular care not
to park on dry grassland or harvested grain
fields. G
WARNING
If you switch off the ignition while driving,
safety-relevant functions are only available
with limitations, or not at all. This could affect,
for example, the power steering and the brake
boosting effect.Y ou will require considerably more effort to steer and brake. There is a risk
of an accident.
Do not switch off the ignition while driving.
G
WARNING
If you leave children unsupervised in the
vehicle, they could set it in motion by, for
example:
R releasing the parking brake
R shifting the automatic transmission out of
the parking position P
R starting the engine.
They could also operate the vehicle's
equipment. 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. Parking
155Driving and parking Z 

G
WARNING
If you leave children unsupervised in the
vehicle, they could set it in motion by, for
example:
R releasing the parking brake
R shifting the automatic transmission out of
the parking position P
R starting the engine.
They could also operate the vehicle's
equipment. 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.
! Am oving vehicle can lead to damage to
the vehicle or damage to the drive train.
To ensure that the vehicle is secured against
rolling away unintentionally:
R the electric parking brake must be applied.
R on vehicles with manual transmission,
engage first gear or reverse gear.
R on vehicles with automatic transmission,
the transmission must be in position Pand
the SmartKey must be removed from the
ignition lock.
R on steep uphill or downhill gradients, turn
the front wheels towards the curb. Switching off the engine
Important safety notes G
WARNING
The automatic transmission switches to
neutral position Nwhen you switch off the
engine. The vehicle may roll away.T here is a
risk of an accident.
After switching off the engine, always switch
to parking position P. Prevent the parked
vehicle from rolling away by applying the
parking brake. Vehicles with manual transmission X
Shift to either first gear or reverse gear R.
X Turn the SmartKey to position 0in the
ignition lock and remove it.
The immobilizer is activated.
X Apply the electric parking brake.
Vehicles with automatic transmission X
Apply the electric parking brake.
X Shift the transmission to position P.
Using the SmartKey
X Turn the SmartKey to position 0in the
ignition lock and remove it.
The immobilizer is activated.
i The key can only be removed if the
transmission is in position P.
Using KEYLESS-GO
X Press the Start/Stop button (Y page 136).
The engine stops and all the indicator
lamps in the instrumentc luster go out.
i When the driver's door is closed, this
corresponds to SmartKey position 1.W hen
the driver's door is open, it corresponds to
SmartKey position 0or "SmartKey
removed".
If you try to switch off the engine when the
transmission is not in position P, a message
appears in the multifunction display. Asignal
sounds. Electric parking brake
General notes G
WARNING
If you leave children unsupervised in the
vehicle, they could set it in motion by, for
example:
R releasing the parking brake
R shifting the automatic transmission out of
the parking position P
R starting the engine. 156
ParkingDriving and parking 

They could also operate the vehicle's
equipment. 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.
i The electric parking brake performs a
function test at regular intervals while the
engine is switched off. The sounds that can
be heard while this is occurring are normal.
Engaging and releasing manually X
To engage: push handle 0003.
When the electric parking brake is
engaged, the 0005(USA only) or 000A
(Canada only) red indicator lamp lights up
in the instrument cluster.
i The electric parking brake can also be
applied when the SmartKey is removed.
X To release: switch on the ignition.
X Pull handle 0003.
The red 0005(USA only) or 000A(Canada
only) indicator lamp in the instrument
cluster goes out.
i The electric parking brake can only be
released:
R if the SmartKey is in position 1in the
ignition lock or
R if the ignition was switched on using the
Start/Stop button. Applying automatically The electric parking brake is applied
automatically:
R
if DISTRONIC PLUS brings the vehicle to a
standstill or
R if the HOLD function is keeping the vehicle
stationary
In addition, at least one of the following
conditions must be fulfilled:
R the engine is switched off.
R the driver's seat belt is not inserted in the
belt buckle and the driver's door is open.
R the vehicle is stationary for a lengthy
period.
The red 0005(USA only) or 000A(Canada
only) indicator lamp in the instrument cluster
lights up.
Releasing automatically The electric parking brake is released
automatically when all of the following
conditions are fulfilled:
R
the engine is running.
R the transmission is in position Dor R.
R the driver's seat belt is fastened.
R you depress the accelerator pedal.
If the transmission is in position R, the trunk
lid must be closed.
If your seat belt is not fastened, the following
conditions must be fulfilled to automatically
release the electric parking brake:
R the driver's door is closed.
R you have shifted out of Por you have
previously driven faster than 2mph
(3 km/h).
i The electric parking brake can only be
released automatically on vehicles with
automatic transmission. Parking
157Driving and parking Z 

X
Press the 0004or0003 button to select the
Interior Lighting Delay: function.
You will see the selected setting: Enabledor
Disabled .
X Press the 000Bbutton to save the setting.
Vehicle Activating/deactivating the automatic
door locking mechanism
X
Press the 0002or0005 button on the
steering wheel to select the Sett. menu.
X Press the 0004or0003 button to select the
Vehicle submenu.
X Press 000Bto confirm.
X Press the 0004or0003 button to select the
Automatic Door Lock: function.
You will see the selected setting: Enabledor
Disabled .
X Press the 000Bbutton to save the setting.
If you select the Automatic Door Locks: function, the vehicle is centrally locked above
a speed of around 9 mph (15 km/h).
For further information on the automatic
locking feature, see (Y
page 78).
Activating/deactivating the acoustic
locking verification signal
If you switch on the Acoustic LockFeedback: function, an acoustic signal
sounds when you lock the vehicle.
X Press the 0002or0005 button on the
steering wheel to select the Sett. menu.
X Press the 0004or0003 button to select the
Vehicle submenu.
X Press 000Bto confirm.
X Press the 0004or0003 button to select the
Acoustic Lock Feedback: function.
You will see the selected setting: Enabledor
Disabled .
X Press the 000Bbutton to save the setting. Activating/deactivating the radar sensor
system
X
Press the 0002or0005 button on the
steering wheel to select the Sett. menu.
X Press the 0004or0003 button to select the
Vehicle submenu.
X Press 000Bto confirm.
X Press the 0003or0004 button to select
Radar Sensor (See Oper. Manual): .
You will see the selected setting: Enabled or
Disabled .
X Press the 000Bbutton to save the setting.
The following systems are switched off when
the radar sensor system is deactivated:
R DISTRONIC PLUS (Y page 166)
R BAS PLUS (Y page 60)
R PRE-SAFE ®
Brake (Y page 65)
Convenience Activating/deactivating the EASY-
ENTRY/EXIT feature
G
WARNING
You must make sure no one can become
trapped or injured by the moving steering
wheel when the easy-entry/exit feature is
activated.
To stop steering wheel movement, move
steering wheel adjustmen tlever or press one
of the memory position buttons.
Do not leave children unattended in the
vehicle, or with access to an unlocked vehicle.
Children could open the driver's door and
unintentionally activate the easy-entry/exit
feature, which could result in an accident
and/or serious personal injury.
X Press the 0002or0005 button on the
steering wheel to select the Sett. menu.
X Press the 0004or0003 button to select the
Convenience submenu.
X Press 000Bto confirm. 206
Menus and submenusOn-board computer and displays 

Cigarette lighter
G
WARNING
Never touch the heating elemen torsides of
the lighter; they are extremely hot .Hold the
knob only.
Make sure any children traveling with you do
not injure themselves or start a fire with the
hot cigarette lighter. X
Turn the SmartKey to position 2in the
ignition lock (Y page 135).
X To open: push the lower section of
cover 0003.
The ashtray opens.
X Press in cigarette lighter 0004.
Cigarette lighter 0004will pop out
automatically when the heating element is
red-hot. 12
Vsockets
General notes !
If you are using all sockets in the vehicle,
make sure that you do no texceed the
maximum current dra wof 55 A. Otherwise,
you will overload the fuses.
The sockets can be used for accessories with
a maximum draw of 180 W (15 A).
Accessories include such items as lamps or
chargers for mobile phones.
X Turn the SmartKey to position 1in the
ignition lock (Y page 135). If you use the sockets for long periods when
the engine is switched off, the battery may
discharge.
i
An emergency cut-out ensures that the
on-board voltage does not drop too low .If
the on-board voltage is too low, the power
to the sockets is automatically cut. This
ensures tha tthere is sufficient power to
start the engine.
Socket under the armrest X
Open the stowage compartmentu nder
armrest 0003(Ypage 257).
X Lift up the cover of socket 0004.
On vehicles withou tashtrays or lighters, there
is an additional socket in the center console.
Socket in the front-compartment center
console X
To open: push the lower section of
cover 0003.
The stowage compartment opens.
X Lift up the cover of socket 0004. Features
261Stowage and features Z 

setting can be corrected at a qualified
specialist workshop.
Have service work carried out as described
in the Maintenance Booklet. This may
otherwise lead to increased wear and
damage to the major assemblies or the
vehicle.
Aq ualified specialist workshop, e.g. an
authorized Mercedes-Ben zCenter, will reset
the ASSYST PLUS service interval display
after the service work has been carried out.
You can also obtain further information on
maintenance work, for example.
Special service requirements Arduous operating conditions or increased
loads on the vehicle will require some service
work to be performed more often than for a
vehicle in normal use. Such arduous
conditions include regular city driving with
frequent intermediate stops and use in
mountainous terrain or on poor road
surfaces.
For example, if the vehicle is used under
arduous operating conditions, have air filters,
engine oil and oil filters changed frequently
and chec kthe wheels often.F urther
information can be obtaine dataqualified
specialist workshop, e.g. an authorized
Mercedes-Benz Center.
Driving abroad An extensive Mercedes-Benz Service network
is also available in other countries. You can
obtain further information from any
authorized Mercedes-Benz Center. Care
Notes on care
G
WARNING
Many cleaning products can be hazardous.
Some are poisonous, others are flammable.
Always follow the instructions on the particular container
.Always open your
vehicle's doors or windows when cleaning the
inside.
Never use fluids or solvents that are not
designed for cleaning your vehicle.
Always lock away cleaning products and keep
them out of reach of children. H
Environmental note
Dispose of empty packaging and cleaning
cloths in an environmentally responsible
manner.
! For cleaning your vehicle, do not use any
of the following:
R dry, rough or hard cloths
R abrasive cleaning agents
R solvents
R cleaning agents containing solvents
Do not scrub.
Do not touch the surfaces or protective
films with hard objects, e.g. a ring or ice
scraper. You could otherwise scratch or
damage the surfaces and protective film.
! Do not park the vehicle for an extended
period straight after cleaning it, particularly
after having cleaned the wheels with wheel
cleaner. Wheel cleaners could cause
increased corrosio nofthe brake discs and
brake pads/linings. For this reason, you
should drive for a few minutes after
cleaning. Braking heats the brake discs and
the brake pads/linings, thus drying them.
The vehicle can then be parked.
Regular care of your vehicle is a condition for
retaining the quality in the long term.
Use care products and cleaning agents
recommended and approved by Mercedes-
Benz. Care
281Maintenance and care Z 

X
To remove the tire sealant bottle from the
tire inflation compressor, press together
the locking tabs on the yellow cap.
X Pull the tire sealant bottle out of the tire
inflation compressor.
The filler hose remains attached to the tire
sealant bottle.
X Stow the tire sealant bottle and the tire
inflation compressor.
X Drive to the nearest qualified specialist
workshop and have the tire changed there.
X Have the tire sealant bottle and the filler
hose replaced as soon as possible at a
qualified specialist workshop.
X Have the tire sealant bottle replaced every
four years at a qualified specialist
workshop. Battery (vehicle)
Important safety notes
Special tools and expert knowledge are
required when working on the battery, e.g.
removal and installing. You should therefore
have all work involving the battery carried out
at a qualified specialist workshop. G
WARNING
Work carried out incorrectly on the battery
can, for example, lead to a short circuit and
damage your vehicle's electronic system. This
can disrupt driving safety systems such as
ABS (anti-lock braking system) or ESP ®
(Electronic Stability Program). R
If ABS malfunctions, the wheels can lock
during braking. This limits the steerability
of the vehicle when braking and the braking
distance may increase. There is a risk of
accident.
R If ESP ®
malfunctions, the vehicle will not be
stabilized if it starts to skid or a wheel starts
to spin. There is a risk of accident.
You should therefore have all work involving
the battery carried out at a qualified specialist
workshop. G
WARNING
Comply with safety precautions and take
protective measures when handling batteries. Risk of explosion
Fire, open flames and
smoking are prohibited
when handling the battery.
Avoid creating sparks.
Battery acid is caustic.
Avoid contact with the skin,
eyes or clothing.
Wear suitable protective
clothing, in particular
gloves, an apron and a face
mask.
Immediately rinse acid
splashes off with clean
water. Consult a doctor if
necessary.
Wear eye protection.
Keep children away.
Observe this Operator's
Manual.296
Battery (vehicle)Breakdown assistance