tem is equipped with a Top Tether belt, this
should always be used.
Top Tether anchorages
The Top Tether anchorage points are installed
in the rear compartment behind the head
restraints on the parcel shelf.
X Move head restraint :upwards.
X Fold up cover ;of Top Tether anchorage
= .
X Install the LATCH-type (ISOFIX) child
restraint system with Top Tether. Always
comply with the child restraint system
manufacturer's installation instructions
when doing so.
X Route Top Tether belt Aunder head
restraint :between the two head restraint
bars.
X Hook Top Tether hook ?of Top Tether belt
A into Top Tether anchorage =.
Make sure that Top Tether belt Ais not
twisted. X
Tension Top Tether belt A. Always comply
with the child restraint system manufactur- er's installation instructions when doing so.
X Fold down cover ;of Top Tether anchor-
age =.
X If necessary, move head restraint :back
down again slightly ( Ypage 98). Make
sure that you do not interfere with the cor-
rect routing of Top Tether belt A.
Child restraint system on the front-
passenger seat
General notes
Accident statistics show that children
secured in the rear seats are safer than chil-
dren secured in the front-passenger seat. For this reason, Mercedes-Benz strongly advises
that you install the child restraint system on a
rear seat.
If it is absolutely necessary to install a child
restraint system on the front-passenger seat,
be sure to observe the instructions and safety
notes on the "Occupant Classification System (OCS)" ( Ypage 51).
You can thus avoid the risks that could arise
as a result of:
R an incorrectly categorized person in the
front-passenger seat
R the unintentional deactivation of the front-
passenger front air bag
R the unsuitable positioning of the child
restraint system, e.g. too close to the dash-
board
Rearward-facing child restraint system
If it is absolutely necessary to install a rear-
ward-facing child restraint system on the
front-passenger seat, always make sure that
the front-passenger front air bag is deactiva-
ted. Only if the PASSENGER AIR BAG OFF
indicator lamp is permanently lit ( Ypage 43)
is the front-passenger front air bag deactiva-
ted.
64Children in the vehicle
Safety
Always observe the child restraint system
manufacturer's installation and operating
instructions.
Forward-facing child restraint system
If you secure a child in a forward-facing childrestraint system on the front-passenger seat,
always move the front-passenger seat as far
back as possible. Fully retract the seat cush-
ion length. The entire base of the child
restraint system must always rest on the seat
cushion of the front-passenger seat. The
backrest of the child restraint system must lie as flat as possible against the backrest of thefront-passenger seat. The child restraint sys-
tem must not touch the roof or be subjected
to a load by the head restraint. Adjust the
angle of the seat backrest and the head
restraint position accordingly. Always make
sure that the shoulder belt strap is correctly
routed from the front-passenger seat-belt
extender to the shoulder belt guide on the
child restraint system. The shoulder belt strap
must be routed forwards from the retracted
front-passenger seat seat-belt extender.
Always observe the child restraint system
manufacturer's installation and operating
instructions.
Pets in the vehicle
GWARNING
If you leave animals unattended or unsecured in the vehicle, they could press buttons or
switches, for example.
As a result, they could: R activate vehicle equipment and become
trapped, for example
R activate or deactivate systems, thereby
endangering other road users
Unsecured animals could also be flung around
the vehicle in the event of an accident or sud- den steering or braking, thereby injuring vehi-
cle occupants. There is a risk of an accident
and injury.
Never leave animals unattended in the vehi-
cle. Always secure animals properly during
the journey, e.g. use a suitable animal trans-
port box.
Driving safety systems
Overview of driving safety systems
In this section, you will find information aboutthe following driving safety systems:
R ABS ( Anti-lock Braking System)
( Y page 66)
R BAS ( Brake Assist System) ( Ypage 66)
R BAS PLUS ( Brake Assist System PLUS) with
Cross-Traffic Assist ( Ypage 67)
R COLLISION PREVENTION ASSIST PLUS
(distance warning function and Adaptive
Brake Assist) ( Ypage 68)
R ESP ®
(E lectronic Stability Program)
( Y page 71)
R EBD ( Electronic Brake force Distribution)
( Y page 73)
R ADAPTIVE BRAKE ( Ypage 73)
R PRE-SAFE ®
Brake ( Ypage 73)
R STEER CONTROL ( Ypage 75)
Important safety notes
If you fail to adapt your driving style or if you
are inattentive, the driving safety systems can
neither reduce the risk of an accident nor
override the laws of physics. Driving safety
systems are merely aids designed to assist
driving. You are responsible for maintaining
the distance to the vehicle in front, for vehicle
speed, for braking in good time and for stay-
ing in lane. Always adapt your driving style to
suit the prevailing road and weather condi-
tions and maintain a safe distance from the
vehicle in front. Drive carefully.
Driving safety systems65
Safety
Z
XPull the protective cap on the mechanical
key as straight as possible away from the
vehicle until it releases.
X Release the door handle.
XInsert the mechanical key into the lock of
the driver's door as far as it will go.
X Turn the mechanical key clockwise as far as
it will go to position 1.
The locking knob drops down and the driv- er's door is locked.
X Turn the mechanical key back and removeit.
X Make sure that the doors and the trunk lid
are locked.
X Insert the mechanical key into the Smart-
Key ( Ypage 80).
X Carefully press the protective cap onto the
lock cylinder until it engages and is seated
firmly. Do not pull the door handle when
doing so.
iIf you lock the vehicle as described above,
the fuel filler flap is not locked. The anti-
theft alarm system is not armed.
Trunk
Important safety notes
GWARNING
If objects, luggage or loads are not secured or not secured sufficiently, they could slip, tip
over or be flung around and thereby hit vehicle
occupants. There is a risk of injury, particu-
larly in the event of sudden braking or a sud-
den change in direction.
Always store objects so that they cannot be
flung around. Secure objects, luggage or
loads against slipping or tipping before the
journey.
!The trunk lid swings upwards when
opened. Therefore, make sure that there is
sufficient clearance above the trunk lid.
iYou can limit the opening angle of the
trunk lid in COMAND; see the separate
operating instructions.
iThe opening dimensions of the trunk lid
can be found in the "Vehicle data" section ( Y page 281).
Do not leave the SmartKey in the trunk. You
could otherwise lock yourself out.
You should preferably place luggage or loads
in the trunk. Observe the loading guidelines ( Y page 196).
Obstacle recognition with trunk lid
reversing feature
On vehicles with trunk lid remote closing fea-
ture, the trunk lid is equipped with automatic obstacle recognition with reversing feature. If a solid object blocks or restricts the trunk lid
when automatically opening or closing, this
procedure is stopped. If the trunk lid is stop-
ped during the closing procedure, it will open
again automatically. The automatic obstacle
recognition with reversing feature is only an
aid. It is not a substitute for your attentive-
ness when opening and closing the trunk lid.
GWARNING
The reversing feature does not react:
R to soft, light and thin objects, e.g. small fin-
gers
R over the last 1/3 in (8 mm) of the closing
movement
84Trunk
Opening and closing
Useful information
iThis Operator's Manual describes all
models and all standard and optional equip- ment of your vehicle available at the time of
publication of the Operator's Manual.
Country-specific differences are possible.
Please note that your vehicle may not be
equipped with all features described. This
also applies to safety-related systems and
functions.
iRead the information on qualified special-
ist workshops ( Ypage 27).
Notes on breaking-in a new vehicle
Important safety notes
The sensor system of some driving and driv-
ing safety systems adjusts automatically
while a certain distance is being driven after
the vehicle has been delivered or after
repairs. Full system effectiveness is not
reached until the end of this teach-in proce-dure.
New and replaced brake pads and discs only
reach their optimum braking effect after sev-
eral hundred kilometers of driving. Compen-
sate for this by applying greater force to the
brake pedal.
The first 1000 miles (1500 km)
The more you look after the engine when it is
new, the more satisfied you will be with its
performance in the future.
R You should therefore drive at varying vehi-
cle and engine speeds for the first
1000 miles (1500 km).
R Avoid heavy loads, e.g. driving at full throt-
tle, during this period.
R When shifting gears manually, upshift in
good time, before the tachometer needlereaches Ôof the way to the red area of the
tachometer. R
Do not manually shift to a lower gear to
brake the vehicle.
R Try to avoid depressing the accelerator
pedal beyond the point of resistance (kick-
down).
R All vehicles (except AMG vehicles): ide-
ally, for the first 1,000 miles (1,500 km),
drive in program E.
Additional breaking-in notes for AMG vehi-cles: R Do not drive faster than 85 mph
(140 km/ h)for the first 1,000 miles
(1,500 km).
R Only allow the engine to reach a maximum
engine speed of 4,500 rpm briefly.
R Change gear in good time.
R Ideally, for the first 1,000 miles (1,500 km),
drive in program C.
After 1000 mile s(1500 km), you can increase
the engine speed gradually and accelerate
the vehicle to full speed.
You should also observe these notes on
breaking in if the engine or parts of the drive
train on your vehicle have been replaced.
Always observe the respective speed limits.
Driving
Important safety notes
GWARNING
Objects in the driver's footwell can restrict the pedal travel or obstruct a depressed pedal.
The operating and road safety of the vehicle is
jeopardized. There is a risk of an accident.
Make sure that all objects in the vehicle are
stowed correctly, and that they cannot enter
the driver's footwell. Install the floormats
securely and as specified in order to ensure
sufficient clearance for the pedals. Do not use loose floormats and do not place floormats on
top of one another.
114Driving
Driving and parking
GWARNING
After a short time, hill start assist will no lon-
ger brake your vehicle and it could roll away.
There is a risk of an accident and injury.
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: R you are pulling away on a level road or on a
downhill gradient.
R the transmission is in position N.
R the electric parking brake is applied.
R ESP ®
is malfunctioning.
ECO start/stop function
Introduction
The ECO start/stop function switches the
engine off automatically if the vehicle is stop- ped 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 andyou 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
If the engine has been switched off automat-
ically by the ECO start/stop function, the è ECO symbol is shown in the multifunc-
tion display.
Every time you switch on the engine using the SmartKey or the Start/Stop button, the ECO
start/stop function is activated.
The ECO start/stop function is only available in drive program E(drive program Con AMG
vehicles).
Information in the Digital Operator's Manual
In the Digital Operator's Manual you will find
information on the following topics: R Automatic engine switch-off
R Automatic engine start
R Deactivating/activating the ECO start/
stop function
Problems with the engine
You can find information about this in the
Digital Operator's Manual.
Driving119
Driving and parking
Z
Problems with fuel and the fuel tank
This section provides descriptions of and solutions to safety-relevant problems. Descriptions
of and solutions to further problems can be found in the Digital Operator's Manual.
ProblemPossible causes/consequences and MSolutions
Fuel is leaking from the
vehicle.GWARNING
The fuel line or the fuel tank is faulty.
Risk of explosion or fire.
X Apply the electric parking brake.
X Switch off the engine.
X Open the driver's door.
The on-board electronics now have status 0. This is the same as
the SmartKey having been removed.
or, if the SmartKey is inserted in the ignition lock: X Remove the SmartKey from the ignition lock.
X Do not restart the engine under any circumstances.
X Consult a qualified specialist workshop.
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 grainfields.
GWARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start 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 drivetrain could be damaged.
To ensure that the vehicle is secured against
rolling away unintentionally:
R the electric parking brake must be applied.
R the transmission must be in position Pand
the SmartKey must be removed from the
ignition lock.
R the front wheels must be turned towards
the curb on steep uphill or downhill gradi-ents.
Parking125
Driving and parking
Z
Rthe empty vehicle must be secured at the
front axle with a wheel chock or similar, for
example, on uphill or downhill gradients.
R a laden vehicle must also be secured at the
rear axle with a wheel chock or similar, for
example, on uphill or downhill gradients.
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.
If the engine cannot be switched off as descri-
bed here, see "Emergency engine cutoff"( Y page 237).
Information in the Digital Operator's
Manual
A description of how to switch off the engine
can be found in the Digital Operator's Manual.
Electric parking brake
General notes
GWARNING
If you leave children unsupervised in the vehi- cle, they could set it in motion by, for example:
R release the parking brake.
R shift the automatic transmission out of the
parking position P.
R start 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.
The function of the electric parking brake is
dependent on the on-board voltage. If the on-
board voltage is low or there is a malfunction
in the system, it may not be possible to apply the released parking brake.
X If this is the case, only park the vehicle on
level ground and secure it to prevent it roll-
ing away.
X Shift the automatic transmission to posi-
tion P.
It may not be possible to release an applied
parking brake if the on-board voltage is low or there is a malfunction in the system. Contact
a qualified specialist workshop.
The electric parking brake performs a func-
tion test at regular intervals while the engine is switched off. The sounds that can be heard
while this is occurring are normal.
Information in the Digital Operator's
Manual
In the Digital Operator's Manual you will find
information on the following topics: R Applying/releasing manually
R Applying automatically
R Releasing automatically
R Emergency braking
Parking the vehicle for a long period
You can find information about this in the
Digital Operator's Manual.
126Parking
Driving an d parking
Stopping
GWARNING
When leaving the vehicle, even if it is braked
only by DISTRONIC PLUS, it could roll away if:R there is a malfunction in the system or in
the voltage supply.
R DISTRONIC PLUS has been deactivated
with the cruise control lever, e.g. by a vehi-
cle occupant or from outside the vehicle.
R the electrical system in the engine com-
partment, the battery or the fuses have
been tampered with.
R the battery is disconnected.
R the accelerator pedal has been depressed,
e.g. by a vehicle occupant.
There is a risk of an accident.
If you wish to exit the vehicle, always turn off
DISTRONIC PLUS and secure the vehicle
against rolling away.
For further information on deactivating
DISTRONIC PLUS ( Ypage 134).
If DISTRONIC PLUS detects that the vehicle in front is stopping, it brakes your vehicle until it is stationary.
Once your vehicle is stationary, it remains
stationary and you do not need to depress thebrake.
After a time, the electric parking brake
secures the vehicle and relieves the servicebrake.
Depending on the specified minimum dis-
tance, your vehicle will come to a standstill at
a sufficient distance behind the vehicle in
front. The specified minimum distance is set
using the control on the cruise control lever.
When the HOLD function is activated, the
transmission is shifted automatically to posi- tion Pif:
R the driver's seat belt is not fastened and the
driver's door is open.
R the engine is switched off, unless it is auto-
matically switched off by the ECO start/
stop function. The electric parking brake secures the vehicle
automatically if DISTRONIC PLUS is activated
when the vehicle is stationary and:
R a system malfunction occurs.
R the power supply is not sufficient.
If a malfunction in the electric parking brake
occurs, then the transmission may also be
shifted into position Pautomatically.
Information in the Digital Operator'sManual
In the Digital Operator's Manual you will find
information on the following topics: R
Setting a speed
R Setting the specified minimum distance
R DISTRONIC PLUS displays in the instru-
ment cluster
Deactivating DISTRONIC PLUS
There are several ways to deactivate
DISTRONIC PLUS:
X Briefly press the cruise control lever for-wards :
or
X Brake, unless the vehicle is stationary
When you deactivate DISTRONIC PLUS, you
will see the
DISTRONICPLUSOffmessage in
the multifunction display for approximately
five seconds.
iThe last speed stored remains stored until
you switch off the engine.
134Driving systems
Driving and parking