
Always drive with the head restraints instal-
led. Before driving off, make sure for every
vehicle occupant that the center of the head
restraint supports the back of the head at
about eye level.
Do not rotate the head restraints of the front and
rear seats. Otherwise, you cannot adjust the
height and angle of the head restraints cor-
rectly.
Using the fore-and-aft adjustment, adjust the
head restraint so that it is as close as possible to
your head.
GWARNING
If the driver's seat is not engaged, it could
move unexpectedly while the vehicle is in
motion. This could cause you to lose control of the vehicle. There is a risk of an accident.
Always make sure that the driver's seat is
engaged before starting the vehicle.
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
If you adjust the seat height carelessly, you or
other vehicle occupants could be trapped and
thereby injured. Children in particular could
accidentally press the electrical seat adjust-
ment buttons and become trapped. There is a
risk of injury.
While moving the seats, make sure that your
hands or other body parts do not get under the
lever assembly of the seat adjustment sys-
tem.
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
!To avoid damage to the seats and the seat
heating, observe the following information:
Rkeep liquids from spilling on the seats. If
liquid is spilled on the seats, dry them as
soon as possible.
Rif the seat covers are damp or wet, do not
switch on the seat heating. The seat heat-
ing should also not be used to dry the seats.
Rclean the seat covers as recommended;
see "Interior care".
Rdo 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 passen-
gers, if possible.
Rwhen the seat heating is in operation, do
not cover the seats with insulating materi-
als, e.g. blankets, coats, bags, seat covers,
child seats or booster seats.
!Make sure that there are no objects in the
footwell under or behind the seats when mov-
ing the seats back. There is a risk that the
seats and/or the objects could be damaged.
iThe rear-compartment head restraints can
be removed (Ypage 98).
Vehicles without the through-loading feature:
the head restraints cannot be removed from
the rear compartment seats.
For more information, contact a qualified spe-
cialist workshop.
iRelated topic:
RRear bench seat through-loading feature
(Ypage 268)
96Seats
Seats, steering wheel and mirrors

Using the fore-and-aft adjustment, adjust the
head restraint so that it is as close as possible to
your head.
Adjusting the height of the head
restraints electrically
XTo adjust the head restraint height:slide
the switch for the head restraint adjustment
(
Ypage 97) up or down in the direction of the
arrow.
Vehicles with AMG Performance seat: the height
of the head restraints cannot be adjusted.
Adjusting the rear seat head restraint
height
XTo raise: pull the head restraint up to the
desired height.
XTo lower: press release catch :and push
the head restraint down until it is in the
desired position.
Installing and removing rear head
restraints
XRelease the rear seat backrest and fold it
slightly forward (Ypage 268).
XTo remove: pull the head restraint up to the
stop.
XPress release catch :and pull the head
restraint out of the guides.
XTo re-install: insert the head restraint so that
the notches on the bar are on the left when
viewed in the direction of travel.
XPush the head restraint down until you hear it
engage in position.
XFold back the rear seat backrest until it
engages.
Folding the front seat backrests
forward/back
Important safety notes
GWARNING
The seat belt does not offer the intended level of protection if you have not moved the back-
rest to an almost vertical position. When brak-
ing or in the event of an accident, you could
slide underneath the seat belt and sustain
abdomen or neck injuries, for example. This
poses an increased risk of injury or even fatal injury.
Adjust the seat properly before beginning
your journey. Always ensure that the backrest
is in an almost vertical position and that the
shoulder section of your seat belt is routed
across the center of your shoulder.
GWARNING
When you adjust a seat, you or other vehicle
occupants could become trapped, e.g. on the seat guide rail. There is a risk of injury.
Make sure when adjusting a seat that no one
has any body parts in the sweep of the seat.
Observe the safety notes on "Air bags"
(
Ypage 49) and "Children in the vehicle"
(Ypage 59).
Folding the seat backrest forward
EASY-ENTRY System: the seat moves forwards
as soon as you fold the backrest forwards and
pull the seat forwards horizontally. This makes it
easier for passengers to get into and out of the
rear compartment.
98Seats
Seats, steering wheel and mirrors

Problems with the seat heating / seat ventilation
ProblemPossible causes/consequences andMSolutions
The seat heating or seat
ventilation has switched
off prematurely or can-
not be switched on.The on-board voltage is too low because too many electrical consum-
ers are switched on.
XSwitch off electrical consumers that you do not need, such as the
rear window defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating or seat
ventilation can be switched back on manually.
Steering wheel
Important safety notes
GWARNING
You could lose control of your vehicle if you do the following while driving:
Radjust the driver's seat, head restraint,
steering wheel or mirrors
Rfasten the seat belt
There is a risk of an accident.
Adjust the driver's seat, head restraint, steer-
ing wheel and mirror and fasten your seat belt before starting the engine.
GWARNING
Children could injure themselves if they
adjust the steering wheel. There is a risk of
injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Never
leave children unsupervised in the vehicle.
The electrically adjustable steering wheel can
still be adjusted when there is no key in the igni-
tion lock.
Adjusts the steering wheel electri-
cally
:Adjusts the steering wheel height
;Adjusts the steering wheel position (fore-
and-aft adjustment)
iFurther related subjects:
REASY-ENTRY/EXIT feature (Ypage 102)
RStoring settings (Ypage 106)
Steering wheel heating
Switching on/off
Steering wheel101
Seats, steering wheel and mirrors
Z

Vehicle level
Setting the raised vehicle level
It is possible to choose between the "Normal"
and "Raised" vehicle levels below a speed of
50 mph (80 km/h). Select the "Normal" setting
for normal road surfaces and "Raised" for driving
with snow chains or on particularly poor road
surfaces. Your selection remains stored even if
you remove the SmartKey from the ignition lock.
XStart the engine.
If indicator lamp ;is not lit:
XPress button :.
Indicator lamp ;lights up. The vehicle is
raised by 0.6 in (15 mm) compared to the
normal level.
The Vehicle Rising
message appears on
the multifunction display.
iThe message disappears after ten seconds,
irrespective of the level reached. If necessary,
the vehicle is raised further.
The "Raised level" setting is canceled if you:
Rdrive faster than 75 mph (120 km/h).
Rdrive for approximately three minutes at a
speed over 50 mph (80 km/h).
The "Raised level" remains active when you are
not driving within these speed ranges.
Setting the normal vehicle level
XStart the engine.
If indicator lamp ;is lit:
XPress button :.
Indicator lamp ;goes out. The vehicle is
adjusted to the height of the currently selec-
ted drive program (
Ypage 134).
Suspension tuning
General notes
The Adaptive Damping System with continuous
damping adjustment (ADS PLUS) automatically
controls the calibration of the dampers.
The damping is tuned individually to each wheel
and depends on:
Ryour driving style, e.g. sporty
Rthe road surface condition, e.g. bumps
Ryour individual selection, i.e. sports or com-
fort
Your selection remains stored even if you
remove the SmartKey from the ignition lock.
Sports tuning
In the S(Sport) and S+(Sport Plus) drive pro-
grams, the firmer suspension tuning ensures
even better contact with the road. Select this
mode when employing a sporty driving style,
e.g. on winding country roads.
XSelect the Sor S+ drive program with the
DYNAMIC SELECT switch (Ypage 134).
The vehicle is lowered by 0.6 in (15 mm) com- pared to the normal level.
Comfort tuning
In the Eand Cdrive programs, the driving char-
acteristics of your vehicle are more comforta-
ble. Therefore, select this mode if you favor a
168Driving systems
Driving an d parking