Page 100 of 302

96 Automatic climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Air recirculation
This mode can be selected to temporarily reduce the
entry of annoying odors or dust into the vehicle’s
interior.
Outside air is not supplied to the car’s interior.
To select, press O button.
To cancel, press O button again.
The system will automatically switch from recirculated
air to fresh air:
• after approx. 5 minutes at outside temperatures
below approx. 40°F (5°C),
• after approx. 30 minutes, at outside temperatures
above approx. 40°F (5°C),
• after approx. 5 minutes, if button S is pressed.
Notes:
If the windows should fog up from the inside, switch
from recirculated air back to fresh air.
At high outside temperatures, the system automatically
engages the recirculated air mode thereby increasing
the cooling capacity performance, switching to partially
fresh air within 20 minutes.Residual engine heat utilization
With the engine switched off, it is possible to continue
heating the interior for a short while.
Air volume and distribution are controlled
automatically.
To select:
Turn electronic key in steering lock to position 1 or 0 or
remove electronic key.
Press T button.
This function selection will not activate if the battery
charge level is insufficient.
To c a n c e l :
Press T button.
The system will automatically shut off:
• If you turn electronic key in steering lock to
position 2,
•after approx. 30minutes,
• if the battery voltage drops.
Page 187 of 302

183 Driving instructions
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Winter driving
Have your vehicle winterized at your authorized
Mercedes-Benz Center before the onset of winter.
• Change the engine oil if the engine contains an oil
which is not approved for winter operation. For
viscosity (SAE/CCMC class) and filling quantity,
see page 277.
• Check engine coolant anticorrosion/antifreeze
concentration.
• Additive for the windshield washer and headlamp
cleaning system: Add MB Concentrate “S” to a
premixed windshield washer solvent/antifreeze
which is formulated for below freezing
temperatures, see page 88.
• Test battery: Battery capacity drops with decreasing
ambient temperature. A well charged battery helps
to ensure that the engine can be started, even at low
ambient temperatures.
• Tires: We recommend M+S rated radial-ply tires on
all four wheels for the winter season. Observe
permissible maximum speed for M+S rated
radial-ply tires and the legal speed limit.Note:
In winter operation, the maximum effectiveness of the
antilock brake system (ABS) or electronic stability
program (ESP) can only be achieved with M+S rated
radial-ply tires and/or snow chains recommended by
Mercedes-Benz. Snow chains maximize performance.
Block heater (for Canada only)
The engine is equipped with a block heater.
The electrical cable may be installed at your authorized
Mercedes-Benz Center.
Traveling abroad
Abroad, there is a widely-spread Mercedes-Benz service
network at your disposal. If you plan to travel into areas
which are not listed in the index of your Center
directory, you should request pertinent information
from your authorized Mercedes-Benz Center.
Page 290 of 302

286 Index
Te ch n ica l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car careIndex
BBabySmart
TM airbag deactivation system ..................... 58
Self-test ......................................................................... 58
Backrest ............................................................................. 48
BAS (Brake assist system) ............................................ 188
Malfunction indicator lamp .....................................207
Battery .............................................................................237
Charge indicator lamp .............................................. 211
Recycling ....................................................................238
Brake assist system (BAS) ............................................ 188
Brake fluid ......................................................................279
Capacity ......................................................................277
Brake pad wear indicator lamp ....................................205
Brake warning lamp ......................................................205
CCatalytic converter ........................................................ 163
Central locking system ................................................... 29
Automatic central locking ......................................... 37
Central locking switch ............................................... 36
General notes ............................................................... 33
Locking and unlocking
with remote control ............................................... 30
Remote control ..................................................... 28, 29Remote control – changing batteries .................... 252
Vehicle keys .................................................................28
Changing wheels ............................................................231
Charge indicator lamp ................................................... 211
Check engine
malfunction indicator lamp .................................... 204
Check regularly and before a long trip ...................... 202
Checking engine oil level ............................................ 222
Checking engine oil level indicator .............................. 82
Cleaning and care of the vehicle ................................ 262
Clock .................................................................................. 79
Combination switch .........................................................86
Console storage compartments ....................................127
Consumer information ................................................. 283
Control and operation of
radio transmitters ..................................................... 154
Coolant
Adding coolant .......................................................... 225
Anticorrosion/antifreeze quantity ........................ 282
Checking level .......................................................... 224
Coolants ......................................................................281
Low engine coolant level
warning lamp ....................................................... 209
Temperature gauge .....................................................78
Cruise control ................................................................. 184
Cup holder .............................................................. 128, 265