Page 57 of 381
48 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Manual seat
To remove:
Pull head restraint to its highest position. Push
button (1) and pull out head restraint completely.
To install:
Insert head restraint and push it down to the stop. Push
button (1) and adjust head restraint to the desired
position.
Wa r n i n g !
For your protection, drive only with properly
positioned head restraints.Adjust head restraint to support the back of the
head approximately at ear level.Do not drive the vehicle without the seat head
restraints. Head restraints are intended to help
reduce injuries during an accident.
Page 58 of 381

49 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Multicontour seat (optional)
We recommend to adjust the multicontour seat in the
following order:
1Seat cushion depth
2Backrest bottom
3Backrest center
4Side bolster adjustmentSome models may be equipped with driver’s
multicontour seat. These seats have movable seat
cushions and inflatable air cushions built into the
backrest to provide additional lumbar and side support.
The seat cushion movement and amount of backrest
cushion height and curvature can be continuously
varied with regulators (1, 2 and 3) after turning the
electronic key in starter switch to position 2.
The side bolsters of the backrest can be adjusted with
rocker switch (4):
•press to the left –
increase side support,
•press to the right –
decrease side support.
If the engine is turned off, the last cushion setting is
retained in memory, and automatically adjusts the
cushion to this setting when the engine is restarted.
Page 59 of 381
50 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Heated seats (optional)
The front seat heaters can be switched on with the
electronic key in starter switch position 1 or 2.
The switch is located in the center console.Press switch to turn on seat heater:
1Normal seat heating mode. One indicator lamp in
the switch lights up.
2Rapid seat heating mode. Both indicator lamps in
the switch light up. After approximately 5 minutes
in the rapid seat heating mode, the seat heater
autom ati cally s witches to n ormal o peration an d on ly
one indicator lamp will stay on.
Turning off seat heater:
If one indicator lamp is on, press upper half of switch.
If both indicator lamps are on, press lower half of
switch.
If left on, the seat heater automatically turns off after
approximately 30 minutes of operation.
Page 60 of 381
51 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Note:
When in operation, the seat heater consumes a large
amount of electrical power. It is not advisable to use the
seat heater longer than necessary.
The seat heaters may automatically switch off if too
many power consumers are switched on at the same
time, or if the battery charge is low. When this occurs,
the indicator lamp in the switch will blink (both
indicator lamps blink during rapid seat heating mode).
The seat heaters will switch on again automatically as
soon as sufficient voltage is available.
If the blinking of the indicator lamps is distracting to
you, the seat heaters can be switched off.
Page 61 of 381
52 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Rear seat head restraints
Folding head restraints back with switch in the center
console:
Turn the electronic key in starter switch to position 1
or 2.
Folding head restraints back:
Press the symbol-side on the rocker switch to release
the head restraints. The head restraints will fold
backward for increased visibility.Folding head restraints back in the rear passenger
compartment:
Push lock button (1). The head restraints will fold
backward.
Page 62 of 381
53 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Place head restraints upright
Placing head restraints upright:
Pull the head restraint forward until it locks into
position.
Angle of head restraints:
The head restraint angle can be adjusted manually.Important!
For safety reasons, always drive with the rear head
restraints in the upright position when the rear seats
are occupied.
Keep the area around head restraints clear of articles
(e.g. clothing) to not obstruct the folding operation of
the head restraints.
Page 63 of 381
54 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Head restraint heightRaising:
Pull up on head restraint.
Lowering:
Push button (2) and push down on head restraint.
Adjust head restraint to support the back of the head
approximately at ear level. The head restraint
inclination can also be adjusted manually.
Note:
The center rear seat head restraint cannot be adjusted
or removed.
Page 64 of 381

55 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Seat belts and integrated restraint system
Your vehicle is equipped with seat belts for all seats,
emergency tensioning retractors for all outboard seat
belts, dual front airbags, door mounted side impact
airbags, and head protective window curtain airbags.
Their protective functions are designed to complement
one another.
Seat belts
Important!
Laws in most states and all Canadian provinces require
seat belt use.
All states and provinces require use of child restraints
that comply with U.S. Federal Motor Vehicle Safety
Standard 213 and Canadian Motor Vehicle Safety
Standard 213.
All child restraints systems are designed to be secured
in vehicle seats by lap belts or the lap belt portion of a
lap-shoulder belt.
For your safety and that of your passengers we strongly
recommend their use.
Wa r n i n g !
Children 12 years old and under must never ride in
the front seat, except in a Mercedes-Benz
authorized BabySmart
TM compatible child seat,
which operates with the BabySmart
TM system
installed in the vehicle to deactivate the passenger
side front airbag when it is properly installed.
Otherwise they will be struck by the airbag when it
inflates in a crash. If this happens, serious or fatal
injury will result.
According to accident statistics, children are safer
when properly restrained in the rear seating
positions than in the front seating positions.
Infants and small children must ride in back seats
and be seated in an appropriate infant or child
restraint system, which is properly secured with
the vehicle’s seat belt, fully in accordance with the
child seat manufacturer’s instructions.A child’s risk of serious or fatal injuries is
significantly increased if the child restraints are
not properly secured in the vehicle and the child is
not properly secured in the child restraint.