
43 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Opening and closing windows and
sliding / pop-up roof from outside
(summer opening / convenience feature)
Aim transmitter eye of remote control at a door receiver.
Summer opening:
(Operation with electronic key)
The sliding / pop-up roof and all side windows can be
opened and the driver’s seat ventilation automatically
switches on. See page 74 for seat ventilation.
Continue to press transmit button Œ after unlocking
the vehicle.
The windows and sliding/pop-up roof begin to open
after approximately 1 second. The driver’s seat
ventilation automatically switches on. See page 74 for
seat ventilation.
To interrupt opening procedure, release transmit
button.Convenience feature:
(Operation with electronic key)
The sliding / pop-up roof and the side windows can be
closed.
Continue to press transmit button ‹ after locking
the vehicle.
The windows and sliding / pop-up roof begin to close
after approximately 1 second.
To interrupt closing procedure, release transmit button.
Ensure that all side windows and the sliding / pop-up
roof are properly closed before leaving the vehicle.
Wa r n i n g !
Never operate the windows or sliding / pop-up roof
if there is the possibility of anyone being harmed
by the opening or closing procedure.In case the procedure causes potential danger, the
procedure can be immediately halted by releasing
the remote control button. To reverse direction of
movement press Œ for opening or ‹ for
closing.

44 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Note:
If the windows and sliding / pop-up roof cannot be
operated automatically by pressing the transmit button
of t he r emote con trol t hen it may b e ne ces sary to change
the batteries in the electronic key (if ok, battery check
lamp in electronic key will light briefly when pressing
transmit button), or to synchronize the remote control,
see page 371 and 373.
Convenience feature
(Operation with KEYLESS-GO)
Continue to press lock button on door handle after
locking the vehicle.
The windows and sliding / pop-up roof begin to close
after approx. 1 second.
To interrupt closing procedure, release lock button. To
reverse direction (within 2 seconds after closing), pull
and hold door handle. Opening of windows starts and
continues for as long as the door handle is held but the
door not opened.Ensure that all side windows and the sliding / pop-up
roof are properly closed before leaving the vehicle.
Wa r n i n g !
Never operate the windows or sliding / pop-up roof
if there is the possibility of anyone being harmed
by the closing procedure.In case the procedure causes potential danger, the
procedure can be immediately halted by releasing
the lock button. To reverse direction of movement
pull and hold outside door handle.

62 Tow-away alarm
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
The alarm will last approximately 2
1/2minutes 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. To cancel the alarm,
insert the electronic key in the starter switch or press
buttonŒ or‹ on the electronic key; or (vehicles
with KEYLESS-GO) when carrying the KEYLESS-GO-
card, grasp the door handle or press the start-/stop
button on the gear selector lever.
If the alarm stays on for more than 20 seconds, an
emergency call is initiated automatically. See Tele Aid
on page 218.To prevent triggering the tow-away alarm feature, switch
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 starter switch to
position 1 or 0, or remove electronic key from starter
switch. Press tow-away alarm switch (1). The indicator
lamp (2) illuminates briefly.
Exit vehicle, and lock vehicle with the electronic key or
(vehicles with KEYLESS-GO) the lock button at each
door handle.
The tow-away alarm remains switched off until the
vehicle is locked again with the electronic key or the
lock button at each door handle (vehicles with
KEYLESS-GO), at which time it is automatically
reactivated.

85 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Operation of seat belts
The inertia reel stops the belt from unwinding during
sudden stops or when quickly pulling on the belt.
The locking function of the reel may be checked by
quickly pulling out the belt.
Adjust seat belt so that shoulder portion is located as
close as possible to the middle of your shoulder (it
should not touch the neck). The height setting for the
shoulder portion of the front seat belts is automatically
adjusted by the fore / aft movement of the front seat.
Seat moved to front: Belt outlet fully lowered.
Seat moved to rear: Belt outlet fully raised.
Caution!
For safety reasons, avoid adjusting the seat or seat back
into positions which could affect the correct seat belt
positioning.Unfastening of seat belts
Press release button (3) in the belt buckle (2).
Allow the retractor to completely rewind the seat belt by
guiding the latch plate (1).

90 Restraint systems
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Emergency tensioning retractor (ETR)
The seat belts for the front and rear outer seats are
equipped with emergency tensioning retractors. These
tensioning retractors are located in each belt’s inertia
reel and become operationally ready with the electronic
key in starter switch position 1 or 2.
The emergency tensioning retractors are designed to
activate only when the seat belts are fastened during
frontal impacts exceeding the first threshold of the SRS
and in rear impacts exceeding a preset severity level.
They remove slack from the belts in such a way that the
seat belts fit more snugly against the body restricting its
forward movement as much as possible.In cases of other frontal impacts, angled impacts, roll-
overs, certain side impacts, or other accidents without
sufficient frontal or rear impact forces, the emergency
tensioning retractors will not be activated. The driver
and passengers will then be protected by the fastened
seat belts and inertia reel in the usual manner.
Note:
The front passenger ETR activates only if the front
passenger seat is occupied.
Heavy objects on the front passenger seat can appear to
the “SRS” to indicate the presence of an occupant in
that seat which causes the passenger front airbag to
deploy and the ETR to activate in a crash exceeding the
appropriate threshold.

109 Memory function
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Storing positions into memory
Driver’s seat: with the electronic key in starter switch
position 1 or 2 or with the driver’s door open.
Front passenger seat and rear seats: with electronic key
in starter switch position 1 or 2 or the relevant doors
open.
Adjust the seat and multicontour backrest to the desired
position. You can also adjust the steering wheel, the
exterior rear view mirrors electrically and the inside
rear view mirror by hand for the driver’s seat. See
page 104 for exterior rear view mirror adjustment and
page 102 for steering wheel adjustment.
Push memory button “M”, release and push a stored
position button “1”, “2” or “3” within 3 seconds.Recalling positions from memory
To recall a seat / steering wheel and rear view mirror
position, push and hold button “1”, “2” or “3” until seat /
steering wheel and rear view mirror movement has
stopped.
The seat / steering wheel and rear view mirror
movement stops when the 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 backrest to an upright position.

185 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Express opening and closing of windows
Press k or j on the switch past resistance point
and release – window opens or closes completely.
To interrupt procedure, briefly press j or k.
If the upward movement of the window is blocked
during the closing procedure, the window will stop
during the last few inches before closure and open
slightly.
When pressing and holding the switch j to close the
window, and upward movement of the window is
blocked during the last few inches before closure, it will
stop but not
open slightly.
Note:
The power windows can also be opened and closed
using the summer opening / convenience feature, see
page 43, or pressing button O or e in the control
panel of the automatic climate control, see page 174
and 175.
Wa r n i n g !
When closing the windows, be sure that there is no
danger of anyone being harmed by the closing
procedure.In case of obstruction, the automatic reversal will
not operate if a door window is being closed by
pressing the switch to its resistance point and
holding it there, or when using the electronic key.The closing procedure of door windows can be
immediately reversed by either pressing the switch
or pressing buttonŒon the electronic key and
holding it, or (vehicle with KEYLESS-GO) when
carrying the KEYLESS-GO-card, pull and hold a
door handle.When leaving the vehicle, always remove the
electronic key from starter switch, take the
KEYLESS-GO-card (if so equipped) with you, and
lock the vehicle. Do not leave children unattended
in the vehicle, or with access to an unlocked
vehicle. Unsupervised use of vehicle equipment
can cause serious personal injury.

247 Driving instructions
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Driving instructions
Drive sensibly – Save Fuel
Fuel consumption, to a great extent, depends on driving
habits and operating conditions.
To save fuel you should:
•keep tires at the recommended inflation pressures,
•remove unnecessary loads,
•remove roof rack when not in use,
•allow engine to warm up under low load use,
•avoid frequent acceleration and deceleration,
•have all maintenance work performed at regular
intervals by an authorized Mercedes-Benz Center.
Fuel consumption is also increased by driving in cold
weather, in stop-and-go traffic, on short trips and in hilly
country.Drinking and driving
Ped al s
Wa r n i n g !
Drinking or taking drugs and driving can be a very
dangerous combination. Even a small amount of
alcohol or drugs can affect your reflexes,
perceptions and judgement.The possibility of a serious or even fatal accident is
sharply increased when you drink or take drugs
and drive.Please don’t drink or take drugs and drive or allow
anyone to drive after drinking or taking drugs.Wa r n i n g !
Keep driver’s foot area clear at all times. Objects
stored in this area may impair pedal movement.