Problem Possible causes/consequences and
M Solutions
The engine cannot be
started using the key. the on-board voltage is too low.
X
Switch off non-essential consumers, e.g. seat heating or interior
lighting, and try to start the engine again.
If this does not work:
X Check the starter battery and charge it if necessary
(Y page 318).
or
X Jump-start the vehicle (Y page 319).
or
X Consult aqualified specialist workshop. The engine cannot be
started using KEYLESS-
GO. The key is in the
vehicle. Ad
oor is open. Therefore, the key cannot be detected as easily.
X Close the door and try to start the vehicle again. There is interferenc
efrom apowerful source of radio waves.
X Start your vehicle with the key in the ignition lock. Doors
Important safety notes
G
WARNING
Only for the United Kingdom: if the vehicle
has been locked with the key or with KEY-
LESS-GO, the double lock function is activa-
ted as standard. It is then not possible to open
the doors from inside the vehicle.
Therefore, do not leave any people behind in
the vehicle, particularly children, elderly peo-
ple or people requiring special assistance. As
ar esult, they may not be able to free them-
selves in the event of an emergency. They
could be seriously or even fatally injured by
prolonged exposure to extremely high or low
temperatures, for example. In this case, res-
cuing people from outside the vehicle is diffi-
cult.
Deactivate the interior motion sensor before
you lock the vehicle. The doors can then be
opened from the inside after the vehicle has
been locked from the outside. G
WARNING
If children are left unsupervised in the vehicle,
they could:
R open adoor from inside the vehicle at any
time, even if it has been locked
R start the vehicle using akey which has been
left in the vehicle
R release the parking brake
They could thereby endanger themselves and
others. Never leave children unsupervised in
the vehicle. Always take the key with you
when leaving the vehicle, even if you are only
leaving it for ashort time. Unlocking and opening the doors
from the inside
For all countries except the United King-
dom: you can open adoor from inside the
vehicle even if it has been locked. If the vehi-
cle has previously been locked with the key
or with KEYLESS-GO, opening adoor from the
inside will trigger the anti-theft alarm system.
Switch off the alarm (Y page 71).82
DoorsOpening and closing
Problems with the side windows
G
WARNING
Closing the side windows with increased force or without the anti-entrapment feature could lead
to serious or even fatal injury. Make sure that nobody can become trapped when closing the side
windows. Problem Possible causes/consequences and
M Solutions
As
ide window cannot
be closed because it is
blocked by objects, e.g.
leaves in the window
guide. X
Remove the objects.
X Close the side window. As
ide window cannot
be closed and you can-
not see the cause. If
as ide window is obstructed durin gclosing and reopen sagain
slightly:
X Immediately after the window blocks, pull the corresponding
switc hagain until the side window has closed.
The side window is closed with increased force.
If as ide window is obstructed again durin gclosing and reopens
again slightly:
X Immediately after the window blocks, pull the corresponding
switc hagain until the side window has closed.
The side window is closed without the anti-entrapmen tfeature. Sliding sunroof
Important safet
ynotes G
WARNING
Make sure that nobody can become trapped
when openin gand closing the sliding sunroof.
If there is arisk of entrapment ,release the
switch immediately. Durin gautomatic opera-
tion ,push the switch briefly in any direction
to stop the sliding sunroof. G
WARNING
The glass in the panorama sunroof could
break in an accident. If you are not wearing a
seat belt, there is arisk that you could be
thrown through the openin ginthe event of the
vehicle overturning .Therefore, always wear a
seat belt to reduce the risk of injuries. G
WARNING
Children could injure themselves if they oper-
ate the sliding sunroof.
Never leave children unsupervised in the vehi-
cle. Always take the key with you when leaving
the vehicle, even if you are only leaving it for
as hort time.
! Only open the panorama sliding sunroof
if it is free of snow and ice. Otherwise, mal-
functions may occur.
Do not allow anything to protrude from the
sliding sunroof. Otherwise, the seals could
be damaged.
i Resonance noises can occur in addition
to the usuala irflow noises when the sliding
sunroof is open. They are caused by minor
pressure fluctuations in the vehicle interior. Sliding sunroof
91Opening and closing Z
settings with the memory function
(Y
page 107). Seats
Important safety notes
G
WARNING
The seats can still be adjusted when there is
no key in the ignition lock. For this reason,
children should never be left unsupervised in
the vehicle. They could adjust the seats and
become trapped. G
WARNING
Only adjust the driver's seat when the vehicle
is stationary. You will otherwise be distracted
from the road and traffic conditions and you
could lose control of the vehicle as aresult of
the seat moving. This could cause an acci-
dent. G
WARNING
If you adjust the seat height carelessly,y ou or
others could be trapped and thereby injured.
Children in particular could unintentionally
press the buttons to electrically adjust the
seats and become trapped.
Take care that:
R while moving the seats, your hands do not
get under the lever assembly of the seat
adjustment system.
R children in the vehicle do not slide their
hands under the levers. G
WARNING
Make sure that nobody can become trapped
when adjusting the seats.
Observe the notes on airbags.
Secure children as recommended; see the
"Children in the vehicle" section. G
WARNING
Make sure that the back of your head is sup-
ported at eye level by the central area of the head restraint. If your head is not supported
correctly by the head restraint, you could suf-
fer asevere neck injury in the event of an
accident. Never drive if the head restraints are
not engaged and set correctly. G
WARNING
As eat belt can only offer its intended degree
of protection when the backrest is almost ver-
tical and the occupant is sitting upright. Avoid
seat position sthat do not allow the seat belt
to be routed correctly. Adjust the backrest so
that it is as upright as possible. Never travel
with the backrest reclined too far backwards.
You could otherwise be seriously or even
fatally injured in the event of an acciden tor
sudden braking.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat cover sare damp or wet, do not
switch on the seat heating. The seat
heating should also not be used to dry
the seats.
R clean the seat cover sasrecommended;
see the "Interior care" section.
R do not transport heavy loads on the
seats. Do not place sharp objects on the
seat cushions ,e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation ,do
not cover the seats with insulating mate-
rials, e.g. blankets, coats, bags, seat cov-
ers, child seats or booster seats.
! To avoid damage to the seats and the seat
heating, observe the following information:
R do not spill any liquids on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
R if the seat cover sare damp or wet, do not
switch on the seat heating. The seat Seats
97Seats, steering wheel and mirrors Z
heating should also not be used to dry
the seats.
R clean the seat covers as recommended;
see "Interior care".
R do not transport heavy loads on the
seats. Do not place sharp objectsont he
seat cushions, e.g. knives, nails or tools.
The seats should only be occupied by
passengers, if possible.
R when the seat heating is in operation, do
not cover the seats with insulating mate-
rials, e.g. blankets, coats, bags, seat cov-
ers, child seats or booster seats.
! Make sure that there are no objectsint he
footwell or behind the seats when moving
the seat back. There is arisk that the seats
and/or the objectsc ould be damaged.
i The head restraintsint he front seats are
fitted with the NECK-PRO system
(Y page 46). For this reason, it is not pos-
sible to remove the head restraintsf rom
the front seats.
For more information ,contact aqualified
specialist workshop.
i Further related subjects:
R Rear bench seat through-loading feature Adjusting the seats electrically
:
Head restraint height
; Seat cushion angle
= Seat height ?
Seat fore-and-aft adjustment
A Backrest angle
i Vehicles with memory function: if PRE-
SAFE ®
has been triggered, the front-
passenger seat will be moved to abetter
position if it was previously in an unfavour-
able position.
i You can store the seat settings using the
memory function (Y page 107).
i Vehicles with the through-loading feature
and memory function: if you fold down a
rear seat backrest, the respective front
seat is moved forwards slightly if neces-
sary.
i Vehicles with memory function: when the
seat is moved forwards or backwards, the
headrest is moved up or down automati-
cally. Adjusting the head restraints
Adjusting the head restraints manually Adjusting the head restraint height
X
To raise: pull the head restraint up to the
desired position.
X To lower: press release catch :and push
the head restraint down to the desired posi-
tion. 98
SeatsSeats, steering wheela
nd mirrors
The three red indicator lamps in the button
indicate the heating level you have selected.
The system automatically switches down
from level 3to level 2after approximately
eight minutes.
The system automatically switches down
from level 2to level 1after approximately ten
minutes.
The system automatically switches off
approximately 20 minutes after it is set to
level 1.
X Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desired heating level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
heating may switch off.
Problems with the seat heating The seat heating has switched off prema-
turely or cannot be switched on. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X Switc hoff electrical consumers that you do
not need, such as the rear window heating
or interior lighting. Switching the seat ventilation on/off
Switching on/off The three blue indicator lamps in the buttons
indicate the ventilation level you have selec-
ted.
X
Make sure that the key is in position 1or
2 in the ignition lock.
X To switch on: press button:repeatedly
until the desired ventilation level is set.
X To switch off: press button:repeatedly
until all the indicator lamps go out.
i If the battery voltage is too low, the seat
ventilation may switch off.
i You can open the side windows and the
sliding sunroof using the "Convenience
opening" feature (Y page 89). The seat ven-
tilation of the driver's seat automatically
switches to the highest level.
Problems with the seat ventilation The seat ventilation has switched off prema-
turely or cannot be switched on. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X
Switc hoff electrical consumers that you do
not need, such as the rear window heating
or interior lighting. Steering wheel
Important safety notes
G
WARNING
Do not adjust the steerin gwheel while driving.
Adjusting the steerin gwheel while driving, or
driving without the steerin gwheel adjustment
feature locked could cause the driver to lose
control of the vehicle.
The electrical steerin gwheel adjustmen tfea-
ture can be operated at any time. Therefore,
do not leave children unattended in the vehi-
cle, or with access to an unlocked vehicle. A
child's unsupervised access to avehicle could
result in an acciden tand/o rserious personal
injury. 102
Steering wheelSeats, steering wheel and mirrors
Problems with the steering wheel heat-
ing If steering wheel heating indicator lamp
=is
flashing, the steering wheel heating has
switched off automatically. The vehicle's
electrical system voltage is too low because
too many electrical consumers are switched
on.
X Switch off electrical consumers that you do
not need, such as the rear window heating
or interior lighting.
Once the battery is sufficiently charged, the
steering wheel heating will switch back on
automatically. EASY-ENTRY/EXIT feature
Important safety notes G
WARNING
Make sure that nobody can become trapped
when you activate the EASY-ENTRY/EXIT fea-
ture.
If there is arisk of someone becoming trap-
ped, stop the adjustment procedure. To halt
the procedure:
R press the steering column adjustment but-
ton.
R briefly press one of the memory function
position buttons.
The steering column stops moving immedi-
ately.
Do not keep the memory function position
button pressed down, otherwise the memory
function will start and the steering wheel and
seat will begin to move.
Never leave children unsupervised in the vehi-
cle. They could open the driver's door and
thereby unintentionally activate the EASY-
ENTRY feature and become trapped.
The EASY-ENTRY/EXIT feature makes getting
in and out of your vehicle easier. You can activate and deactivate the EASY-
ENTRY/EXI
Tfeature in the on-board com-
puter (Y page 226).
Position of the steering wheel when the
EASY-ENTRY/EXIT featureisa ctive The steerin
gwheel tilts upwards if you:
R remove the key from the ignition lock
R open the driver's door and KEYLESS-GO is
in position 1
R open the driver's door and the key is in
position 0or 1in the ignition lock
i The steerin gwheel only moves upwards if
it has not already reached the upper end
stop.
Position of the steering wheel for driv-
ing The steerin
gwheel is moved to the previously
set position if:
R the driver's door is closed and
R you insert the key into the ignition lock
or
R you press the Start/Stop button onceon
vehicles with KEYLESS-GO.
If you close the driver's door with the key
inserted into the ignition lock, the steering
wheel is automatically moved to the previ-
ously set position.
The last position of the steerin gwheel is
stored when you switch off the ignition or
when you stor ethe setting with the memory
function (Y page 107).
Crash-responsive EASY-EXIT feature If the crash-responsive EASY-EXIT feature is
triggered in an accident
,the steerin gcolumn
will move upwards when the driver's door is
opened. This occurs irrespective of the posi-
tion of the key in the ignition lock. This makes
it easier to exit the vehicle and rescue the
occupants. 104
Steering wheelSeats, steering wheel and mirrors
X
Make sure that the vehicle is stationary and
that the key is in position 2in the ignition
lock.
X Press button ;for the exterior mirror on
the front-passenger side.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the preset parking position.
X Use adjustment button =to adjust the
exterior mirror to aposition that allowsy ou
to see the rear wheel and the kerb.
The parking position is stored.
i If you shift the transmission to another
position, the exterior mirror on the front-
passenger side returns to the driving posi-
tion.
Using the memory button
You can set the front-passenger side exterior
mirror so that you can see the rear wheel on
that side as soon as you engage reverse gear.
This settingc an be stored using memory but-
ton M?.
X Make sure that the key is in position 2in
the ignition lock.
X With the exterior mirror on the front-
passenger side activated, use adjustment
button =to adjust the exterior mirror. In
the exterior mirror, the rear wheel and the
kerb should be visible.
X Press memory button M? and one of the
arrows on adjustment button =within
three seconds.
The parking position is stored if the exterior
mirror does not move.
X If the mirror moves out of position, repeat
the steps. Calling up
astore dparking position set-
ting X
Tur nthe key to position 2in the ignition
lock.
X Adjust the exterior mirror on the front-
passenger side using button ;.
X Engage reverse gear.
The exterior mirror on the front-passenger
side moves to the stored parking position.
The exterior mirror on the front-passenger
side moves back to its original position:
R as soon as you exceed aspeed of
15 km/h
R if you press button :for the exterior mir-
ror on the driver's side Memory function
Storing settings
G
WARNING
Only use the memory function on the driver's
side when the vehicle is stationary. You could
otherwise be distracted from the traffic con-
ditions by the steering wheel and seat moving
of their own accord, and as aresult, cause an
accident. G
WARNING
The memory function can still be used when
the key has been removed. For this reason,
children should never be left unsupervised in
the vehicle. They could otherwise become
trapped when adjusting the seat or the steer-
ing wheel.
With the memory function, you can store up
to three different settings, e.g. for three dif-
ferent people.
The following settings are stored as asingle
memory preset:
R position of the seat, backrest and head
restraint
R active multicontour seat: seat cushion
length, lateral cushions of the seat back- Memory function
107Seats, steering wheela nd mirrors Z
Identification plates
Vehicle identification plate with vehi-
cle identification number (VIN) X
Open th efront ri ght-han ddoor.
You will see vehicle identification plate :.Example: vehicle identification plate
:
Vehicle identification plate
; Vehicle manufacturer (Daimler AG)
= EU type approval number (only for certain
countries)
? VIN
A Maximum permissible gros svehicle
weight (kg)
B Maximum permissible front axle load (kg)
C Maximum permissible rear axle load (kg)
D Paint code
i The data shown on the vehicle identifica-
tion plate is example data. This data is dif-
ferent for ever yvehicle, and can deviate
fro mt he data shown here. You can find the
data applicable to your vehicle on the vehi-
cle's identification plate. VIN
X
Slide the right-hand front seat to its rear-
most position.
X Fold floor covering :upwards.
You will see VIN ;.
The VIN can also be found on the vehicle
identification plate (Y page 359). Engine number
The engine number is stamped onto the
crankcase. You can obtain further informa-
tion from any qualified specialist workshop. Service products and capacities
Important safety notes
G
WARNING
When handling, storing and disposing of any
service products, please observe the relevant
regulations, as you could otherwise endanger
yourself and others.
Keep service products away from children.
To protect your health, do not allow service
products to come into contact with your eyes
or open wounds. See adoctor immediately if
any service product is swallowed. H
Environmental note
Dispose of service products in an environ-
mentally-responsible manner. Service products and capacities
359Technical data Z