Page 47 of 329

44 Tow-away alarm
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Tow - aw ay al a rm
The switch is located in the center console.
1Press to switch off
2Indicator lamp
Once the alarm system has been armed, the exterior
vehicle lamps will flash and an alarm will sound when
someone attempts to raise the vehicle.The alarm will last approximately 3 minutes in form of
flashing exterior lamps. At the same time an alarm will
sound for 30 seconds. The alarm will stay on even if the
vehicle is immediately lowered. The tow-away alarm
system is switched off automatically if the vehicle is
unlocked with the electronic main key.
If the alarm stays on for more than 20 seconds, an
emergency call is initiated automatically. See Tele Aid
on page 180.
To p r eve nt t ri gge ri n g t h e tow- away a la rm fe a t u r e , s wi tch
off the tow-away alarm before towing the vehicle, or
when parking on a surface subject to movement, such
as a ferry or auto train.
To do so, turn electronic key in steering lock to
position 1 or 0, or remove electronic key from steering
lock. Press tow-away alarm switch (1). The indicator
lamp (2) illuminates briefly.
Exit vehicle, and lock vehicle with the remote control.
The tow-away alarm remains switched off until the
vehicle is locked again with mechanical key or remote
control, at which time it is automatically reactivated.
Page 48 of 329

45 Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Power seats, front
To operate the front power seat adjustment switches,
turn electronic key in steering lock to position 1 or 2
(with the driver’s or passenger’s door open, the power
seats can also be operated with the electronic key
removed or in steering lock position 0).
Wa r n i n g !
Do not adjust the driver’s seat while driving.
Adjusting the seat while driving could cause the
driver to lose control of the vehicle.Never ride in a moving vehicle with the backrest
reclined. Sitting in an excessively reclined position
can be dangerous. You could slide under the seat
belt in a collision. If you slide under it, the belt
would apply force at the abdomen or neck. That
could cause serious or even fatal injuries. The
backrest and seat belt provide the best restraint
when the wearer is in an upright position and the
belt is properly positioned on the body.Never place hands under seat or near any moving
parts while a seat is being adjusted.
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the steering lock, and lock your
vehicle.The power seats can also be operated with the
driver’s or passenger door open. Do not leave
children unattended in the vehicle or with access
to an unlocked vehicle. Unsupervised use of vehicle
equipment may cause serious personal injury.
Page 49 of 329

46 Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
The slide switches are located in each door.
We recommend to adjust the power seat in the following
order:
1Seat, up/down
Press the switch (up/down direction) until
comfortable seating position with still sufficient
headroom is reached.
2Seat, fore/aft
Press the switch (fore/aft direction) until a
comfortable seating position is reached that still
allows you to reach the accelerator/brake pedal safely. The position should be as far rearward as
possible, consistent with ability to properly operate
controls.
Note:
Do not move the front passenger seat completely
forward if objects are stored in the parcel net in the
front passenger side footwell. Items in the net may
be damaged.
3Seat cushion tilt
Press the switch in the direction of the arrow until
your legs are lightly supported.
4Backrest tilt
Press the switch in the direction of the arrow until
your arms are slightly angled when holding the
steering wheel.
5Head restraint
During seat adjustment, the head restraint is
automatically adjusted based on seat (fore/aft)
position to support the back of the head
approxima tely at ear l evel . Plea se check th e position
of the head restraint to assure that it supports the
back of the head approximately at ear level. The
head restraint angle can also be adjusted manually.
87
4
52
2
1
3
Page 50 of 329
47 Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Notes:
Your vehicle is equipped with power head restraints, do
not try to raise or lower them manually.
Only minor personal adjustments, as described below,
should then be required.
For steering wheel adjustment, see page 78;
inside rear view mirror, see page 79;
exterior rear view mirrors, see page 80.Caution!
Do not remove head restraints except when mounting
seat covers. For removal see page 51. Whenever
restraints have been removed be sure to reinstall them
before driving.
Page 52 of 329

49 Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Recalling
To recall a seat/head restraint and exterior rear view
mirror position, push and hold position button “1”, “2”
or “3” until seat/head restraint and exterior rear view
mirror movement has stopped. The seat/head restraint
and exterior rear view mirror movement stops when the
position button is released.
Caution!
Do not operate the power seats using the memory
button if the seat backrest is in an excessively reclined
position. Doing so could cause damage to front or rear
seats.
First move the backrest to an upright position.Synchronizing power seats and head restraints
If the power supply was interrupted (battery
disconnected or empty), the power seats and head
restraints are no longer adjusted automatically.
To resynchronize the adjustment feature, turn
electronic key in steering lock to position 2, move the
seat completely forward and the head restraint fully
down, and hold respective buttons for approx.
2seconds.
Page 53 of 329

50 Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Important!
Prior to operating the vehicle, the driver should adjust
the seat height for proper vision as well as fore/aft
placement and backrest angle to insure adequate
control, reach, operation, and comfort. The head
restraint should also be adjusted for proper height. See
also airbag section on page 67 for proper seat
positioning.
In addition, also adjust the steering wheel to ensure
adequate control, reach, operation, and comfort.
Both the inside and outside rear view mirrors should be
adjusted for adequate rearward vision.
Fasten seat belts. Infants and small children should be
seated in a properly secured restraint system that
complies with U.S. Federal Motor Vehicle Safety
Standard 213 and Canadian Motor Vehicle Safety
Standard 213.
All seat, head restraint, steering wheel, and rear view
mirror adjustments as well as fastening of seat belts
should be done before the vehicle is put into motion.
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.
Page 57 of 329

54 Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Backrest
1Release lever
Folding forward:
Lift release lever (1) and fold backrest forward. The seat
will automatically slide forward and the head restraint
will move down.
Folding back:
Lift release lever (1) and fold backrest back. The seat
and head restraint return to their previous positions.
To interrupt the procedure, activate the power seat
switch.Notes:
The automatic seat slide is provided with a safety
feature. The automatic process is interrupted, if the
backrest of the sliding seat is pushed against an
occupant or object. The seat will slide forward, stop, and
make 3 attempts sliding backward.
To halt the automatic process, activate the power seat
switch.
Investigate and correct the cause of interruption.
Now use memory button or power seat switch to bring
seat into desired position.
Wa r n i n g !
When leaving the vehicle always remove the
electronic key from the steering lock, and lock your
vehicle.The power seats can also be operated with the
driver’s or passenger door open. Do not leave
children unattended in the vehicle or with access
to an unlocked vehicle. Unsupervised use of vehicle
equipment may cause serious personal injury.Never place hands under seat or near any moving
parts during a seat adjustment procedure.
Page 58 of 329

55 Seats
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Multicontour seat
(optional CLK 430, Standard CL 55 AMG))
This vehicle may be equipped with multicontour seats.
These seats have movable seat cushions, and inflatable
a ir cu shions built into the back re st to prov id e ad ditiona l
lumbar and side support.We recommend to adjust the multicontour seat in the
following orde r:
1Seat cushion depth
Slide the switch fore or aft until your legs are
supported comfortably.
2Backrest bottom
3Backrest center
4Side bolster adjustment
Adjust the side bolster to provide good lateral
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 steering lock to position 2.
The side bolsters of the backrest can be adjusted with
rocker switch (4):
•press to the right – increase side support,
•press to the left – 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.
1
2
3
4
P91.25-2063-26