G
WARNING
The head restraints cannot provide the inten-
ded protection unless they are fitted and
adjusted correctly. There is an increased risk of injury to the head and neck in the event of
an accident or sudden braking, for example.
Always drive with the head restraints fitted.
Ensure that the centre of the head restraints
support the back of each vehicle occupant's
head at eye level before driving off.
General notes Observe the important safety notes
(Y
page 121).
Do not interchange the head restraints of the
front and rear seats. Otherwise, you will not
be able to adjust the height and angle of the
head restraints to the correct position.
Adjusting the head restraint height
manually X
To raise: pull the head restraint up to the
desired position.
X To lower: press release catch :in the
direction of the arrow and push the head
restraint down to the desired position. Adjusting the head restraint fore-and-
aft position manually This function allows you to adjust the dis-
tance between the head restraint and the
back of the head.
X To move forwards: pull the head restraint
forwards in the direction of the arrow until
it engages in the desired position.
X To move backwards: press and hold
release button :.
X Push the head restraint back.
X Release the release button once the head
restraint is in the desired position.
X Ensure that the head restraint has engaged
properly.
Adjusting the head restraints electri-
cally X
To adjust the head restraint height: slide
the switch for the head restraint adjust-
ment (Y page 123) up or down in the direc-
tion of the arrow.
Vehicles with AMG Performance Seat: the
height of the head restraints cannot be adjus-
ted. 124
SeatsSeats, steering wheel and mirrors
Adjusting the rear seat head restraint
height X
If the head restraint is fully lowered, it is
necessary to press release catch :.
X To raise: pull the head restraint up to the
desired height.
X To lower: press release catch :and push
the head restraint down until it is in the
desired position.
Fitting and removing rear head
restraints X
Release the rear seat backrest and fold it
slightly forwards (Y page 393).
X To remove: pull the head restraint up to
the stop.
X Press release catch :and pull the head
restraint out of the guides.
X To refit: insert the head restraint so that
the notches on the bar are on the left when viewed in the direction of travel. X
Push the head restraint down until you hear
it engage in position.
X Fold back the rear seat backrest until it
engages. Adjusting the 4-way lumbar support
:
To raise the backrest contour
; To soften the backrest contour
= To lower the backrest contour
? To harden the backrest contour
You can adjust the contour of the front seat
backrests individually to provide optimum
support for your back. Switching the seat heating on/off
Switching on/off G
WARNING
If you repeatedly switch on seat heating, the
seat cushion and backrest padding may
become very hot. The health of vehicle occu-
pants with limited temperature sensitivity or a limited ability to react to excessively high
temperatures may be affected or they may
even suffer burn-like injuries. There is a risk of
injury.
Therefore, do not switch on the seat heating
repeatedly. Seats
125Seats, steering wheel and mirrors Z
Problems with the seat ventilation
Problem
Possible causes/consequences and
M
MSolutions The seat ventilation has
switched off prema-
turely or cannot be
switched on. The on-board voltage is too low because too many electrical con-
sumers 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 seat ventilation can
be switched back on. Steering wheel
Important safety notes
G
WARNING
You could lose control of the vehicle while
driving if you:
R adjust the driver's seat, steering wheel or
mirrors
R fasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirrors and fasten your seat
belt before starting the engine. G
WARNING
Children could become trapped by the steer-
ing wheel if they adjust it. There is a risk of
injury.
When leaving the vehicle, always take the key with you and lock the vehicle. Never leave
children unattended in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the
ignition lock. Adjusting the steering wheel man-
ually
:
Release lever
; To adjust the steering wheel height
= To adjust the steering wheel position
(fore-and-aft adjustment)
X Push release lever :down completely.
The steering column is unlocked.
X Adjust the steering wheel to the desired
position.
X Push release lever :up as far as it will go.
The steering column is locked.
X Check if the steering column is locked.
When doing so, try to push the steering
wheel up or down or try to move it in the
fore-and-aft direction. 128
Steering wheelSeats, steering wheel and mirrors
Adjusting the steering wheel electri-
cally :
To adjust the steering wheel height
; To adjust the steering wheel position
(fore-and-aft adjustment)
i Further related subjects:
R EASY-ENTRY/EXIT feature
(Y page 130)
R Storing settings (Y page 135)
R Operating the on-board computer
(Y page 314). Steering wheel heating
Switching on/off X
Turn the key to position 2in the ignition
lock (Y page 187).
X To switch on/off: turn the lever in the
direction of arrow :or;.
Indicator lamp =lights up or goes out. Vehicles without KEYLESS-GO: when you
remove the key from the ignition lock, the
steering wheel heating is switched off.
Vehicles with KEYLESS-GO: when you switch
off the ignition and open the driver's door, the steering wheel heating is switched off. Steering wheel
129Seats, steering wheel and mirrors Z
If indicator lamp
;is not lit:
X Press button :.
Indicator lamp ;lights up. The vehicle is
raised by 25 mm compared to the normal
level.
The Vehicle rising Vehicle rising message appears in
the multifunction display.
i The message disappears after ten sec-
onds, irrespective of the level reached. If
necessary, the vehicle is raised further.
The "Raised level" setting is cancelled if you:
R drive faster than 120 km/h
R drive for approximately three minutes at a
speed above 80 km/h
The "Raised level" remains saved when you
are not driving within these speed ranges.
Setting the normal vehicle level X Start the engine.
If indicator lamp ;is lit:
X Press button :.
Indicator lamp ;goes out. The vehicle is
adjusted to the height of the currently
selected drive program (Y page 195).
Suspension settings General notes
The Adaptive Damping System automatically
controls the calibration of the dampers.
The damping is tuned individually to each
wheel and depends on:
R your driving style, e.g. sporty
R the road surface condition, e.g. bumps
R your individual selection, i.e. sport or com-
fort
Your selection remains stored even if you
remove the key from the ignition lock.
Sport mode
In the "Sport" and "Sport Plus" drive pro-
grams, the firmer suspension setting ensures even better contact with the road. Select this mode when employing a sporty driving style,
e.g. on winding country roads.
X Select the Sor S+ drive program with the
DYNAMIC SELECT switch (Y page 195).
The vehicle is lowered by 15 mm compared
to the normal level.
Comfort mode
In the "Eco" and "Comfort" drive programs,
the driving characteristics of your vehicle are
more comfortable. Therefore, select this
mode if you prefer a more comfortable driving
style. Select Comfort mode also when driving fast on straight roads, e.g. on straight
stretches of motorway.
X Select the Eor Cdrive program with the
DYNAMIC SELECT switch (Y page 195).
The vehicle is raised to the normal level.
When driving at speeds above 125 km/h, the
vehicle is automatically lowered by 15 mm in the Eand Cdrive programs. When driving at
speeds below 80 km/h, the vehicle is raised
again.
Lowering the rear of the vehicle To lower using the button in the left-hand-
side luggage compartment trim:
X Apply the electric parking brake.
X Shift the transmission to position P.
X Pull switch :briefly.
Indicator lamp ;flashes until the vehicle
has been lowered.
The vehicle is lowered by 40 mm. Driving systems
253Driving and parking Z
sharp angle. Otherwise, you may damage
the wheels or tyres.
Active Parking Assist may also display spaces not suitable for parking, e.g.:
R parking or stopping restrictions
R in front of driveways or entrances and exits
R unsuitable surfaces
Parking tips:
R on narrow roads, drive as closely as possi-
ble past the parking space
R parking spaces that are littered or over-
grown might be identified or measured
incorrectly
R parking spaces that are partially occupied
by trailer drawbars might not be identified
as such or be measured incorrectly
R snowfall or heavy rain may lead to a parking
space being measured inaccurately
R pay attention to the PARKTRONIC
(Y page 256) warning messages during the
parking procedure.
R you can intervene in the steering procedure
to correct it at any time. Active Parking
Assist will then be cancelled
R when transporting a load which protrudes
from your vehicle, you should not use
Active Parking Assist
R never use Active Parking Assist when snow
chains are fitted
R make sure that the tyre pressures are
always correct. This has a direct influence
on the parking characteristics of the vehi-
cle.
Use Active Parking Assist for parking spaces
that are:
R parallel or at right angles to the direction of
travel
R on straight roads, not bends
R on the same level as the road, e.g. not on
the pavement Detecting parking spaces Objects located above the height range of
Active Parking Assist will not be detected
when the parking space is measured. These
are not taken into account when the parking
procedure is calculated, e.g. overhanging
loads, tail sections or loading ramps of goods
vehicles. G
WARNING
If there are objects above the detection range:
R Active Park Assist may steer too early
R the vehicle may not stop in front of these
objects
This could cause a collision. There is a risk of
an accident.
If objects are located above the detection
range, stop and deactivate Active Parking
Assist.
For further information on the detection
range (Y page 255).
Active Parking Assist does not assist you
parking in spaces at right angles to the direc-
tion of travel if:
R two parking spaces are located directly
next to one another
R the parking space is directly next to a low
obstacle such as a low kerb
R you forward park
Active Parking Assist does not assist you
parking in spaces that are parallel or at right
angles to the direction of travel if:
R the parking space is on a kerb
R the system reads the parking space as
being blocked, for example by foliage or
grass paving blocks
R the area is too small for the vehicle to
manoeuvre into
R the parking space is bordered by an obsta-
cle, e.g. a tree, a post or a trailer 258
Driving systemsDriving and parking
"Coupling up a trailer" function
:
Vehicle centre point on the yellow guide
line at a distance of approximately 1.0 m
from the rear of the vehicle
; Trailer drawbar
This function is only available on vehicles with
a trailer tow hitch.
X Before coupling up a trailer, set the height
of trailer drawbar ;so that it is slightly
higher than the ball coupling.
X Position the vehicle centrally in front of
trailer drawbar ;. :
Red guide line at a distance of approx-
imately 0.30 m from the ball coupling
; Trailer drawbar locating aid
= Trailer drawbar
? Symbol for the "Coupling up a trailer"
function
A Ball coupling X
Select symbol ?using the Audio 20 or
COMAND controller (see the Digital Own-
er's Manual).
The "Coupling up a trailer" function is selec- ted. The distance specifications now only
apply to objects that are at the same level
as the ball coupling.
X Reverse carefully, making sure that trailer
drawbar locating aid ;points approx-
imately in the direction of trailer drawbar
=.
X Reverse carefully until trailer drawbar =
reaches the red guide line.
The distance between the trailer drawbar
and the red guide line is now approximately 0.30 m.
X Couple up the trailer (Y page 303).
"Wide-angle" function :
Symbol for the wide-angle view function
; Own vehicle
= PARKTRONIC warning displays
You can also use the reversing camera to
select a wide-angle view.
When PARKTRONIC is operational
(Y page 256), a symbol for your own vehicle
appears in the Audio 20 or COMAND Online
display. If the PARKTRONIC warning displays
are active, warning displays =light up in the
Audio 20 or COMAND Online display in yellow or red respectively. 266
Driving systemsDriving and parking
applies to the areas behind, in front of and
beside the vehicle. You could otherwise
endanger yourself and others.
The 360° camera will not function or will
function only in a limited manner:
R if the doors are open
R if the exterior mirrors are folded in
R if the boot lid or tailgate is open
R in heavy rain, snow or fog
R at night or in very dark places
R if the cameras are exposed to very bright
light
R if the area is lit by fluorescent bulbs or LED
lighting (the display may flicker)
R if the camera lenses mist up, e.g. when
driving into a heated garage in winter, caus- ing a rapid change in temperature
R if the camera lenses are dirty or covered
R if the vehicle components in which the
cameras are fitted are damaged. In this
event, have the camera position and setting
checked at a qualified specialist workshop.
Do not use the 360° camera under such cir-
cumstances. You could otherwise injure oth-
ers or damage objects when parking the vehi- cle.
The guide lines in the COMAND display show
the distances to your vehicle. The distances
only apply to road level.
In trailer mode, the guide lines are shown at
the level of the trailer tow hitch.
The camera in the rear area is protected by
means of a flap. This flap opens when the
360° camera is activated. Observe the notes on cleaning (Y page 425). For technical rea-
sons, the flap may remain open briefly after
the 360° camera has been deactivated.
On vehicles with height-adjustable suspen-
sion, due to the technical conditions, leaving
the standard height can result in:
R inaccuracies in the guide lines
R inaccuracies in the display of generated
images (top view) Activation conditions The 360° camera image can be displayed if:
R Audio 20 or COMAND Online is switched on
(see the Digital Owner's Manual)
R the 360° camera 360° camera function is switched on
i If you are driving faster than at a moderate
speed and switch on the 360° camera, a
warning message appears.
The warning message disappears if:
R you are again driving at a moderate
speed. The 360° camera is then activa-
ted.
R the message is confirmed with the %
button.
Switching the 360° camera on/off
using the button X
To switch on: press button:.
The following appears depending on
whether transmission position Dor Ris
selected:
R a split-screen with top view and the
image from the front camera or
R a split-screen with top view and the
image from the reversing camera
X To switch off: press button:.268
Driving systemsDriving and parking