Page 183 of 421

180 Automatic climate control
Te ch n ica l
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Rear window defroster
Turn the electronic key in starter switch to position 2.
To s elec t:
Press the F button in the control panel of the
automatic air conditioner. The indicator lamp in the
button illuminates.
To ca 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 6–23 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.
Page 200 of 421
197 Interior equipment
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Storage compartment below the front armrest
A coin holder is also located in the storage compartment
below the armrest.
Storage tray in the armrest
To open: Press button (9) and raise the armrest.
To close: Lower the armrest until it engages in lock.Note:
Vehicles with rear air conditioner:
Do not place any objects in the well under the storage
tray.
Storage space below the armrest
Vehicles without rear air conditioner:
To open: Press button (10) and raise the armrest.
To close: Lower the armrest until it engages in lock.
Note:
The storage compartment can be heated or cooled, see
page 175.
The compartment can get very warm due to its confined
space. When storing heat sensitive objects in the
compartment, close the air outlet while heating the
passenger compartment.
Do not obstruct the air outlet in the storage
compartment.
Page 214 of 421

211 Contents - Driving
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
DrivingControl and operation of
radio transmitters ..................... 212
The first 1 000 miles
(1 500 km) ................................. 213
Maintenance ................................... 213
Tele Aid ........................................... 214
Catalytic converter ........................224
Emission control ............................225
Starter switch .................................226
Starter switch –
KEYLESS-GO ..............................228
Starting and turning off
the engine .................................. 231
Automatic transmission ...............233
Parking brake .................................242Driving instructions ...................... 243
Drive sensibly – Save Fuel ....... 243
Drinking and driving ................ 243
Pedals .......................................... 243
Power assistance ........................ 244
Brakes .......................................... 244
Driving off ................................... 245
Parking ........................................ 246
Tires ............................................. 247
Snow chains ............................... 249
Winter driving instructions ..... 250
Block heater ................................ 251
Deep water .................................. 252
Passenger compartment ........... 252
Traveling abroad ........................ 252
Cruise control ................................ 253
Distronic (DTR) .............................. 256
Brake assist system
(BAS) ...........................................271Antilock brake system
(ABS) ...........................................272
Electronic stability program
(ESP) ........................................... 274
Active body control (ABC) ............278
Level control system
for vehicles
with Airmatic system ...............279
Level control system
for vehicles
with Active Body Control
(ABC) ..........................................280
Ad aptive da mping system
(ADS) ...........................................283
Parking assist (Parktronic) ..........285
What you should know
at the gas station .......................290
Check regularly and
before a long trip ......................293
Page 218 of 421

215 Tele Aid
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Important!
Always make sure that the indicator lamps in the
“SOS” button, in the “Roadside Assistance” button and
in the “Information” button do not remain illuminated
constantly in red and the message “TELE AID – VISIT
WORKSHOP” is not displayed in the multifunction
display after the system self check.
If a malfunction is indicated as outlined above, have the
system checked at the nearest Mercedes-Benz Center as
soon as possible.
Emergency calls
An emergency call is initiated automatically:
•following an accident in which the Emergency
Tensioning Retractors (ETR’s) or airbags deploy,
•if the antitheft alarm or the tow away alarm stays on
for more than 20 seconds, see pages 62 and 64.
An emergency call can also be initiated manually by
opening the cover next to the inside rear view mirror
labeled “SOS”, then pressing the button (for longer than
2 seconds) located under the cover. See below for
instructions on initiating an emergency call manually.Once the emergency call is in progress, the indicator
lamp in the “SOS” button will begin to f lash. The
message “EMERGENCY CALL – CONNECTING CALL”
appears in the multifunction display. When the
connection is established, the message “EMERGENCY
CALL – CALL CONNECTED” appears in the
multifunction display. All information relevant to the
emergency, such as the location of the vehicle
(determined by the GPS satellite location system),
vehicle model, identification number and color are
generated.
A voice connection between the Response Center and
the occupants of the vehicle will be established
automatically soon after the emergency call has been
initiated. When a voice connection is established the
audio system mutes and the message “TELE AID –
EMERGENCY CALL ACTIVE” appears in the
multifunction display. The Response Center will attempt
to determine more precisely the nature of the accident
provided they can speak to an occupant of the vehicle.
Page 219 of 421

216 Tele Aid
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
The Tele Aid system is available if:
•it has been activated and is operational. Activation
requires a subscription for monitoring services and
cellular air time
•the relevant cellular phone network and GPS signals
are available and pass the information on to the
response center.
Note:
Location of the vehicle on a map is possible if the
vehicle is able to receive signals from the GPS satellite
network and pass the information on to the response
center.
Wa r n i n g !
If the indicator lamp in the “SOS” button is
illuminated continuously and there was no voice
connection to the Response Center established,
then the Tele Aid system could not initiate an
emergency call (e.g. the relevant cellular phone
network is not available). The message
“EMERGENCY CALL – CALL FAILED” appears in
the multifunction display for approx. 10 seconds.Should this occur, assistance must be summoned
by oth er means.
Page 227 of 421

224 Catalytic converter
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Catalytic converter
Your Mercedes-Benz is equipped with monolithic type
catalytic converters, an important element in
conjunction with the oxygen sensors to achieve
substantial control of the pollutants in the exhaust
emissions. Keep your vehicle in proper operating
condition by following our recommended maintenance
instructions as outlined in your Service Booklet.
Caution!
To prevent damage to the catalytic converters, use only
premium unleaded gasoline in this vehicle.
Any noticeable irregularities in engine operation should
be repaired promptly. Otherwise, excessive unburned
fuel may reach the catalytic converter causing it to
overheat, which could start a fire.
Wa r n i n g !
As with any vehicle, do not idle, park or operate
this vehicle in areas where combustible materials
such as grass, hay or leaves can come into contact
with the hot exhaust system, as these materials
could be ignited and cause a vehicle fire.
Page 230 of 421

227 Starter switch
Te ch n ica 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.
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.
Page 233 of 421

230 Starter switch — KEYLESS-GO
Te ch n ica l
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and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
•Do not forget, the engine can be started by anyone if
a KEYLESS-GO-card is left inside the vehicle.
•To be able to operate the vehicle in the case of a
malfunction in the KEYLESS-GO-system (e.g. strong
radio frequency disturbance), we recommend that
you carry the electronic key plus mechanical key
with you and keep them in a safe place so that they
are always handy. Never leave the electronic key in
the vehicle.
•To avoid radio transmission interference, never store
the KEYLESS-GO-card together with other electronic
items (e.g. cellular telephones, other KEYLESS-GO-
cards) or metallic objects (e.g. coins, metal foil).Notes:
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.