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.
! Make sure that there are no objects in the
footwell under or behind the seats when
moving the seats back. There is a risk that
the seats and/or the objects could be dam-
aged. Adjusting the seats
Vehicles with standard head restraints
or luxury head restraints :
Head restraint height
; Head restraint height
= Seat height
? Seat cushion angle
A Seat cushion length
B Seat fore-and-aft adjustment
C Backrest angle
i If PRE-SAFE ®
is triggered, the front-
passenger seat will be moved to a better
position if it was previously in an unfavora- ble position (Y page 67).
i You can store the seat settings using the
memory function (Y page 144). i
To ensure the largest possible range of
seat settings, certain seat adjustment func- tions will automatically activate other seat
adjustment functions.
i The head restraint height is adjusted
automatically when you adjust the seat
height or the seat fore-and-aft position.
Vehicles with an EASY ADJUST luxury
head restraint :
Head restraint height
; Head restraint fore-and-aft position
= Seat height
? Seat cushion angle
A Seat cushion length
B Seat fore-and-aft adjustment
C Backrest angle
i If PRE-SAFE ®
is triggered, the front-
passenger seat will be moved to a better
position if it was previously in an unfavora- ble position (Y page 67).
i You can store the seat settings using the
memory function (Y page 144).
i To ensure the largest possible range of
seat settings, certain seat adjustment func- tions will automatically activate other seat
adjustment functions.
i The head restraint height is adjusted
automatically when you adjust the seat
height or the seat fore-and-aft position. 122
SeatsSeats, steering wheel and mirrors
You can exit the reclined position and
adjust the seat position by:
R calling up a stored position using mem-
ory buttons 1or 2(Y page 144)
R manually adjusting the seat to the
desired position (Y page 122).
i The steps for setting the reclined position
are not always carried out simultaneously.
The legrest folds down if overloaded. If this is
the case fold up the legrest and engage it. Adjusting the front-passenger seat
from the driver’s seat
Important safety notes G
WARNING
The front-air bags for could also injure the
vehicle occupants in the front If the front
seats are positioned too close to the dash-
board or steering wheel. This poses an
increased risk of injury or even fatal injury.
Always adjust the front seats so that they are
as far from the front air bags as possible. Also
observe the notes on the correct adjustment
of the seats. G
WARNING
Children could become trapped if they adjust the seats, particularly when unattended.
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. G
WARNING
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.
! Do not move the front-passenger seat
fully forwards if there are objects in the parcel net in the front-passenger footwell.
The objects could otherwise be damaged.
Adjusting the front-passenger seat X
To select the front-passenger seat:
press button :repeatedly until the indi-
cator lamp in the button lights up.
When the indicator lamp in button :lights
up, for the front-passenger seat you can
adjust:
R adjust the seat (Y page 122)
R seat heating (Y page 134)
R seat ventilation (Y page 136)
R the memory function to call up or save set-
tings (Y page 143). Adjusting the front-passenger seat
from the rear
Important safety notes G
WARNING
Children could become trapped if they adjust the seats, particularly when unattended.
There is a risk of injury.
When leaving the vehicle, always take the
SmartKey with you and lock the vehicle. Neverleave children unsupervised in the vehicle.
The seats can still be adjusted when there is
no SmartKey in the ignition lock. 124
SeatsSeats, steering wheel and mirrors
The supplementary cushion is attached to the
head restraint by three press studs.
Installing the supplementary cushion:
X Position the head restraint as far forwards
as possible (Y page 123).
X Hold supplementary cushion ;against
the head restraint and push press studs :
into the counterpieces.
Removing the supplementary cushion: X Position the head restraint as far forwards
as possible (Y page 123).
X Release press studs :and remove sup-
plementary cushion ;.
Adjusting the rear center head
restraints Retracting and extending electrically
X
Press and hold button :until the head
restraint has fully extended or retracted.
Folding into position mechanically X
Pull the head restraint up until it engages. Adjusting the multicontour seat
The settings for the multicontour seat are
only activated if:
R the seat is occupied
R the seat belt is fastened.
The multicontour seat can be adjusted using
COMAND (see the separate operating
instructions). Adjusting the active multicontour
seat
The settings for the active multicontour seat
are only activated if:
R the seat is occupied
R the seat belt is fastened.
Vehicles installed with the Seat Comfort
package: you can adjust the active multicon-
tour seat for the driver and front passenger
with COMAND (see the separate operating
instructions). Multicontour seat in the rear
You can adjust the multicontour seats for the
outer seats using the remote control (see the separate operating instructions). Adjusting the 4-way lumbar support
The 4-way lumbar support can be adjusted
with COMAND (see the separate operating
instructions). Switching the seat heating on/off
Switching on/off G
WARNING
Repeatedly switching on the seat heating can
cause the seat cushion and backrest pads to
become very hot. The health of persons with
limited temperature sensitivity or a limited 134
SeatsSeats, steering wheel and mirrors
ability to react to excessively high tempera-
tures may be affected or they may even suffer burn-like injuries. There is a risk of injury.
Therefore, do not switch the seat heating on
repeatedly.
For vehicles equipped with the Warmth Com-
fort package: the armrest in the door and the center console can also be heated when you
switch on the seat heating of one of the front
seats. This can be set with COMAND (see the
separate operating instructions).
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.
Vehicles with the Seat Heating Plus package: you can set the distribution of the heated
sections of the seat cushion and backrest on the front seats via COMAND (see the sepa-
rate operating instructions).
Vehicles with the Seat Heating Plus package: you can set the distribution of the heated
sections of the seat cushion and backrest via
COMAND (see the Digital Operator's Man-
ual).
Vehicles with Rear Seat Entertainment Sys-
tem and electric seat adjustment: you can set
the distribution of the heated sections of the rear seat cushion and backrest via the Rear
Seat Entertainment System (see the separate operating instructions). Front seats X
Turn the SmartKey to position 1or 2in the
ignition lock (Y page 189).
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.
Rear seats X
Turn the SmartKey to position 1or 2in the
ignition lock (Y page 189).
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. Seats
135Seats, steering wheel and mirrors Z
Problems with the seat heating
Problem
Possible causes/consequences and
M
MSolutions The seat heating 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 defroster or interior lighting.
Once the battery is sufficiently charged, the seat heating can be
switched back on manually. Switching the seat ventilation on/off
Front seats The three blue indicator lamps in the buttons
indicate the blower setting you have selected.
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 189).
X To switch on: press button:repeatedly
until the desired blower setting 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 107). The seat
ventilation of the driver's seat automati-
cally switches to the highest level.
i When the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation. Rear seat
Switching the seat ventilation in the rear com-
partment on/off
X Turn the SmartKey to position 1or 2in the
ignition lock (Y page 189).
X To switch on: press button:repeatedly
until the desired blower setting 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 When the vehicle is stationary, the fan
speed can be reduced automatically. This
reduces the noises of the seat ventilation. 136
SeatsSeats, steering wheel and mirrors
Steering wheel heating
Activating/deactivating X
Turn the SmartKey to position 2in the igni-
tion lock (Y page 189).
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 SmartKey from the ignition lock,
the steering wheel heating is deactivated.
Vehicles with KEYLESS-GO: when you switch
off the ignition and open the driver's door, the steering wheel heating is deactivated. 138
Steering wheelSeats, steering wheel and mirrors
Problems with the steering wheel heating
Problem
Possible causes/consequences and
M
MSolutions The steering wheel
heating has switched
off prematurely or can-
not 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 defroster or interior lighting. EASY-ENTRY/EXIT feature
Important safety notes G
WARNING
When the EASY-ENTRY/EXIT feature adjusts
the steering wheel and the driver's seat, you
and other vehicle occupants – particularly
children – could become trapped. There is a
risk of injury.
While the EASY-ENTRY/EXIT feature is mak-
ing adjustments, make sure that no one has
any body parts in the sweep of the seat and
the steering wheel.
If there is a risk of becoming trapped by
R the steering wheel: move the steering
wheel adjustment lever.
R the seat: press the switch for seat adjust-
ment.
The adjustment process is stopped.
Press one of the memory function position
switches. The adjustment process is stopped.
This function is only available on vehicles with
memory function. G
WARNING
If children activate the EASY-ENTRY/EXIT fea- ture, they can become trapped, particularly
when unattended. 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. G
WARNING
If you drive off while the EASY-ENTRY/EXIT
feature is making adjustments, you could lose control of the vehicle. There is a risk of an
accident.
Always wait until the adjustment process is
complete before driving off.
The EASY-ENTRY/EXIT feature makes getting in and out of your vehicle easier.
You can activate and deactivate the EASY-
ENTRY/EXIT feature using COMAND (see theseparate operating instructions).
Position of the steering wheel and the
driver's seat when the EASY-ENTRY/
EXIT feature is active The steering wheel tilts upwards and the driv-
er's seat moves backwards if you:
R remove the SmartKey from the ignition lock
R with KEYLESS-GO: open the driver's door;
KEYLESS-GO must be in position 1
R with the SmartKey: open the driver's
door; the SmartKey must be in position 0or
1 in the ignition lock (Y page 189)
R open the driver's door when the ignition is
switched off
i The steering wheel only tilts upwards and
the driver's seat only moves backwards if
the driving position is stored after seat or
steering wheel adjustment (Y page 144).
The last position of the steering wheel or seat is stored if:
R the ignition is switched off
R the setting is stored with the memory func-
tion (Y page 144). Steering wheel
139Seats, steering wheel and mirrors Z
G
WARNING
Children could become trapped if they acti-
vate the memory function, particularly when
unattended. 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. Storing settings
The memory function is only available in vehi- cles with the memory package.
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 a single
memory preset:
R seat, backrest, head restraint position and
contour of the backrest in the lumbar
region
R active multicontour seat: side bolsters of
the backrest, shoulder of the backrest, con- tour of the backrest, dynamic function level
R seat heating: distribution of the heated sec-
tions of the seat cushion and backrest
R driver's side: position of the exterior mir-
rors on the driver's and front-passenger
sides X
Adjust the seat accordingly (Y page 122).
X On the driver's side, adjust the steering
wheel (Y page 137) and the exterior mirrors
(Y page 141).
X Press memory button Mand one of the
storage position buttons 1,2or 3within
three seconds.
The settings are stored in the selected pre- set position. A tone sounds when the set-
tings have been completed. Calling up a stored setting
X Press and hold the corresponding storage
position button 1,2or 3until:
R Seat
R Steering wheel
R Exterior mirrors
are in the stored position.
i If you release the storage position button,
the seat, steering wheel and mirror setting
functions stop immediately. The multicon-
tour seat setting or the 4-way lumbar sup-
port is still carried out. Memory function in the rear compart-
ment Important safety notes
G
WARNING
When the memory function adjusts the seat or steering wheel, you and other vehicle occu-
pants – particularly children – could become
trapped. There is a risk of injury.
While the memory function is making adjust-
ments, make sure that no one has any body
parts in the sweep of the seat or steering
wheel. If somebody becomes trapped, imme-
diately release the memory function position
button. The adjustment process is stopped. 144
Memory function in the rear compartmentSeats, steering wheel and mirrors