59 Central locking system
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Trunk lid emergency release
The emergency release button (1) is located in the trunk
lid.
Briefly press emergency release button (1).
The trunk unlocks and the trunk lid opens.Important!
The emergency release button (1) does not open the
trunk lid, if the vehicle battery is discharged or
disconnected.
Illumination of the emergency release button (1):
The button will blink for 30 minutes after opening the
trunk.
The button will blink for 60 minutes after closing the
trunk.
Note:
When pressing the emergency release button while the
vehicle was centrally locked, the exterior lamps will
flash and the alarm will sound.
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.
1
71 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 4Massage function(PULSE)
The multicontour backrest is equipped with a
massage function to help prevent fatigue during
longer journeys.
The PULSE function inflates and deflates the air
cushions in the backrest rhythmically.
An indicator lamp on the switch lights up when the
PULSE function is switched on. The PULSE function
switches off automatically after approximately
5minutes.
Note:
If the top cushion is inflated, only the middle air
cushion is inflated and deflated.Seat heater
The seat heaters can be switched on with the electronic
key in starter switch positions 1 or 2.
The buttons are located on each door.
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. In this case, one or
both indicator lamps will blink.
The seat heaters switch back 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.
74 Seats
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Seat ventilation system
(optional, standard on model S 600)
The buttons are located on each door.
Seat ventilation can be activated manually with the
electronic key in starter switch positions 1 or 2, or by
the summer opening function (driver’s seat only), see
page 43.
Notes:
When in operation, the seat ventilation system
consumes a large amount of electrical power. It is not
advisable to use the seat ventilator longer than
necessary.The seat ventilators may automatically switch off if too
many power consumers are switched on at the same
time or if the battery charge is low. In this case, one or
more indicator lamps will blink.
The seat ventilation switch back on again automatically
as soon as sufficient voltage is available.
If the blinking of the indicator lamps is distracting to
you, the seat ventilators can be switched off.
The maximum ventilation level (level 3) is automatically
selected if the driver’s seat ventilation is activated by
the summer opening function, see page 43.
183 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Rear window defroster
Turn the electronic key in starter switch to position 2.
To select:
Press the F button in the control panel of the
automatic air conditioner. The indicator lamp in the
button illuminates.
To c a nc el:
Press the F button in the control panel of the
automatic air conditioner. The indicator lamp in the
button goes out.
Note:
Heavy accumulation of snow and ice should be removed
before activating the defroster. The rear window defroster uses a large amount of power.
To keep the battery drain to a minimum, turn off the
defroster as soon as the rear window is clear.
The defroster is automatically turned off after
approximately 6–17 minutes of operation depending on
the outside temperature and vehicle speed.
If several power consumers are turned on
simultaneously, or the battery is only partially charged,
it is possible that the defroster will automatically turn
itself off. When this happens, the indicator lamp inside
the switch starts blinking.
As soon as the battery has sufficient voltage, the
defroster automatically turns itself back on.
191 Interior equipment
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Note:
The time delay for the interior light to switch off after
the electronic key is removed from the starter switch
can be adjusted in the individual setting menu
“LIGHTING” – “INTERIOR LAMP DELAYED SHUT-OFF”.
See page 142.
To prevent the vehicle battery from being discharged
with doors open, all interior lamps switch off after
approximately 5 minutes, when the electronic key is
removed or in starter switch position 0.
6Interior lamps, front:
Press rocker switch in to switch front interior and
reading lamps on. The front interior lighting stays
on while the rocker switch is pressed in.
Switching off the front interior lighting:
Press rocker switch to position (4) or (5).Rear reading lamp
7The rear reading lamps (9) are switched on and off
individually with a switch (8) in the respective
lamp.
P68.00-0758-2698
8
7
218 Tele Aid
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Tele Aid
Important!
The initial activation of the Tele Aid system may only be
performed by completing the subscriber agreement and
placing an acquaintance call using the “SOS” button.
Failure to complete either of these steps will result in a
system that is not activated. If the system is not
activated the indicator lamp in the “SOS” button stays
on after turning electronic key in starter switch to
position 2 (vehicles with KEYLESS-GO:
operating position, see page 232) and the message
“TELE AID – NOT ACTIVATED” will be shown in the
multifunction display for approx. 10 seconds.
If you have any questions regarding activation, please
call the Response Center at 1-800-756-9018 (in the USA)
or 1-888-923-8367 (in Canada).
(Te l ematic Alarm Identification on Demand)
The Tele Aid system consists of three types of response;
automatic and manual emergency, roadside assistance
and information.
The Tele Aid system is operational providing that the
vehicle’s battery is charged, properly connected, not
damaged and cellular and GPS coverage is available.The speaker volume of a Tele Aid call can be adjusted
when using the volume control on the multifunction
steering wheel, for raising press buttonæand for
lowering press buttonç.
To activate, press the “SOS” button, the Roadside
Assistance button• or the Information button¡,
depending on the type of response required.
Shortly after the completion of your Acquaintance Call,
you will receive a user ID and password via first call
mail. By visiting www.mbusa.com and selecting
“Tele Aid” (USA only), you will have access to account
information, remote door unlock, Info Services
* profile
and more.
* Optional System self-check
Initially, after turning the electronic key in starter
switch to position 2, malfunctions are detected and
indicated (the indicator lamps in the “SOS” button, the
Roadside Assistance button• and the Information
button¡ stay on longer than 10 seconds or do not
come on). The message “TELE AID – VISIT
WORKSHOP” appears for approx. 10 seconds in the
multifunction display.
231 Starter switch
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
If the electronic key is left in the starter switch
position 0 for an extended period of time, it can no
longer be turned in the lock. In this case, remove
electronic key from starter switch and reinsert.
Caution!
To prevent accelerated battery discharge and a possible
dead battery, always remove the electronic key from the
starter switch. Do not leave the electronic key in starter
switch position 0.Notes:
A warning sounds when the driver’s door is opened
with the electronic key in starter switch position 1 or 0.
If the electronic key cannot be turned in the starter
switch, the vehicle battery may not be sufficiently
charged. See battery on page 357 or jump starting on
page 359.
With the engine at idle speed, the charging rate of the
alternator (output) is limited.
It is therefore recommended that you turn off
unnecessary electrical consumers while driving in stop-
and-go traffic. This precaution helps to avoid draining of
the battery.
Unnecessary strain on the battery and charging system
may be minimized by turning off the following power
consumers, for example:
Heated seats, rear window defroster. In addition, the
automatic climate air volume control should be set to
the lowest position.
233 Starter switch — KEYLESS-GO
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index “On” position
(starter switch position 1, see page 230).
Most electrical consumers can be operated. For detailed
information see respective subjects.
Operation / driving position
(starter switch position 2, see page 230).
All electrical consumers can be operated. Gear selector
is unlocked.
“Off” position
(electronic key removable from starter switch).
Most electrical consumers cannot be operated.
The selector lever is locked in position “P”.
Notes:
For improved recognition of the KEYLESS-GO-card the
doors should be closed when pressing the start- / stop
button.
The gear selector lever can only be moved with the
vehicle battery charged and connected, and the starter
switch in the Operation position. With the gear selector
lever in position “P”, the brake pedal must also be
depressed.Important!
For the KEYLESS-GO-system to function properly, the
operator should observe the following:
•If the KEYLESS-GO-card is positioned farther away
from the vehicle (e.g. inside clothing or a briefcase),
the vehicle cannot be locked (see page 38) or started
with the start-/stop button (see page 235).
•If the KEYLESS-GO-card is removed from the vehicle
while the engine is running, or by placing the card
in front of the center armrest (see page 198), the
message “CHIP-CARD – NOT RECOGNIZED!” will
appear repeatedly for approx. 2 seconds in the
multifunction display, see page 328.
If the message “CHIP - CARD – NOT RECOGNIZED”
is ignored for an extended of time (approx.
15 minutes), the engine could stop by itself during a
vehicle stop (e.g. traffic light). The vehicle can then
no longer be centrally locked or the engine
restarted. You must first find the card. Start the
engine again.