Page 176 of 430
173 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Defrosting
Press the P button. The display shows P.
Maximum heated and automatically controlled amount
of air is directed to the defroster and windshield air
outlets.
Pressing the Pbutton again returns the system to
the previous setting.Windows fogged on the inside
Switch off the economy mode, if selected: Press
button AC
OFF
. The indicator lamp in the button will go
out.
Switch off air recirculation, if selected: Press
buttonO. The indicator lamp in the button will go
out.
Adjust left and right air outlets upwards.
Set blower to the maximum blower speed.
Increase temperature setting.
Open the side air outlets and direct them onto the side
windows.
Windshield fogged on the outside
Switch on the windshield wiper.
Press on both U buttons until they click in. The
h, j and k symbols will no longer be visible.
P83.40-2009-21
Page 180 of 430

177 Automatic climate control
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index The function switches off automatically:
•if the electronic key in starter switch is turned to
position 2,
•after approximately 30 minutes (if residual engine
heat utilization is selected on the optional rear air
conditioner: after approximately 15 minutes),
•if the battery voltage drops.
Note:
The battery symbol # will appear in the automatic
climate control display some time before the residual
engine heat utilization is switched off if the battery
voltage drops.Switching the automatic climate control on and off
To switch off:
Press buttonM. The display shows “0”.
The fresh air supply to the vehicle interior is shut off.
While driving, use this setting only temporarily,
otherwise the windshield could fog up.
To switch on:
•press buttonM or P,
•press one of the U buttons so that it pops out and
then click it back in,
•press one of the temperature selector buttons or the
air volume switch.
Page 217 of 430
214 Infrared reflecting windshield
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Infrared reflecting windshield
1Mounting location for electronic toll collection
devices (infrared transparent)
2Infrared transparent area (pass-through for
electronic signals)
a 31. 5 i n ( 8 0 c m )
b19.0in (48cm)
c 1.75 in (4.5 cm)Your vehicle is equipped with infrared reflecting glass
which reduces the amount of radiated heat entering the
interior through the windows.
The infrared reflecting glass also prevents the
transmission of signals through the glass by in-vehicle
electronic devices (e.g. electronic toll collection
devices).
To allow the use of these devices in the vehicle, two
infrared transparent areas (1 and 2) are placed in the
windshield.
1
12
P67.10-2068-26
ab
c
Page 258 of 430

255 Driving instructions
Te ch n i c a 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,
seepage404.
•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 345.
•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
ABS and 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.
Page 301 of 430

298 What you should know at the gas station
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Tire pressure
For tire pressure, refer to tire pressure label inside the
fuel filler flap. See page 356 for further details.
Air conditioner
R-134a refrigerant and special PAG lubricant, refer to
“Technical Data”.
Spark plugs
Approved spark plugs, refer to “Technical Data”.
Windshield cleaning
To prevent damage to the engine hood, the windshield
wipers must not be folded forward in parked position.
See page 388 for cleaning the windshield.Bulbs
High and low beams: H7 (55 W),
low beam: Xenon (optional)
fog lamps: H1 (55 W),
turn signal lamps,
front 2357 NA (28.5 / 8.3 W [Yellow]),
parking and standing lamps, front: W 5W (5 W)
side marker lamps, front: 5 W / 4 cp,
turn signal lamps, rear: 1156 NA bulb,
tail and parking lamp: P 21 / 4 W,
tail, parking and rear fog lamp, driver’s side: P 21 / 4 W,
tail, parking, standing and
side marker lamp: R 5 W / 4 cp,
backup lamps: 21 W / 32 cp,
license plate lamps: 5 W / 4 cp
Page 302 of 430
299 Check regularly and before a long trip
Te ch n i c a l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Check regularly and before a long trip 1Windshield washer and
headlamp cleaning system
For refilling reservoir see page 345.
2Coolant level,
see “Adding coolant” on page 344
3Engine oil level,
see “Engine oil level checking” on page 156 and 342
4Brake fluid,
see “Brake fluid” on page 404
Opening hood, see page 339.
Ve h i c l e l i g h t i n g : Check function and cleanliness. For
replacement of light bulbs, see “Exterior lamps” on
page 364.
Exterior lamp switch, see page 158.
Page 333 of 430
330 Malfunction and warning messages
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hints Car care Index
WA S H E R F L U I D
* C = Category, see page 309.
When this message appears while the engine is
running, the level of the reservoir has dropped to
approximately
1/3 of the total volume. The reservoir
should be refilled with the prescribed mixture of MB
Windshield washer concentrate and water or the
concentrate and commercially available premixed
windshield washer solvent / antifreeze, depending on
ambient temperature, at the next opportunity. The
reservoir for the windshield and headlamp washer
systems is located in the engine compartment.
See windshield and headlamp washer system on
page 345 for instructions on topping up the washer
fluid.
Line 1 Line 2 C*
WASHER FLUID CHECK LEVEL! 3
Page 338 of 430

335 Contents – Practical hints
Te ch n i c a l
data Instruments
and controlsOperation DrivingInstrument
cluster displayPractical hintsCar care Index
Practical hintsFirst aid kit .....................................336
Stowing things in the vehicle ......336
Fuses ................................................337
Hood .................................................339
Checking engine oil level .............342
Automatic transmission
fluid level ...................................343
Active body control (ABC)
fluid level ...................................343
Coolant level ...................................344
Adding coolant ...........................344
Windshield and headlamp
washer system ...........................345
Windshield and headlamp
washer fluid mixing ratio .........345Spare wheel, vehicle tools,
storage compartment ............... 346
Vehicle jack .................................... 347
Wheels ............................................ 348
Tire Replacement ....................... 348
Rotating wheels ......................... 349
Spare wheel .................................... 349
Changing wheels ........................... 351
Tire inflation pressure ................. 356
Battery ............................................. 357
Jump starting ................................. 359
Towing the vehicle ........................ 361
Exterior lamps ............................... 364
Headlamp assembly .................. 365
Taillamp assemblies .................. 368Changing batteries in
the electronic key ..................... 371
Synchronizing
remote control ............................373
Changing batteries in the
KEYLESS-GO-card ..................... 374
Emergency engine
shut-down .................................. 376
Fuel filler flap,
manual release .......................... 376
Emergency operation of
sliding/pop-up roof ...................377
Replacing wiper blades .................378
Roof rack .........................................380