460 MERCEDES-BENZ S-Class 2012 W221 Owner's Manual

Climate controlAutomatic climate control .............291
COMAND ....................................... 265
Controlling automatically ...............293
Controlling centrally (COMAND) ....267
Cooling with air dehumidification ..293
Cooling with air dehumidification
(COMAND) ..................................... 267
Defrosting the windows .................296
Defrosting the windshield ..............296
Important safety notes ..................290
Indicator lamp ................................ 293
Main menu ..................................... 266
Maximum cooling .......................... 296
Overview of systems ......................290
Problems with cooling with air
dehumidification ............................ 293
Problem with the rear window
defroster ........................................ 297
Rear compartment (COMAND) ......268
Rear control panel .........................291
Refrigerant ..................................... 528
Setting the air distribution .............295
Setting the airflow .........................295
Setting the airflow (COMAND) .......268
Setting the air vents ......................298
Setting the footwell temperature
(COMAND) ..................................... 268
Setting the temperature ................294
Switching air-recirculation mode
on/off ............................................ 297
Switching on/off ........................... 292
Switching residual heat on/off ......298
Switching the rear window
heating on/off ............................... 297
Coat hooks ......................................... 434
Cockpit Overview .......................................... 34
see Instrument cluster
Color, setting (TV, video) .................. 240
COMAND At a glance (overview) .................... 118
Back button ................................... 119
Basic functions .............................. 133
Components .................................. 118
Display ........................................... 121
Example of operation .....................128
Function buttons ........................... 119Menu overview .............................. 121
Remote control .............................. 125
Switching on/off ........................... 133
System settings ............................. 143
COMAND controller ........................... 118
COMAND display Cleaning instructions .....................125
Folding in and swiveling .................124
Setting ........................................... 143
COMAND operating system .............. 118
Combination switch .......................... 279
Compass function ............................. 188
Conference connection ..................... 201
Consumption statistics (on-board
computer) .......................................... 376
Contrast, setting (TV, video) ............ 240
Convenience closing feature .............. 94
Convenience opening feature ............ 93
Convenience telephone Importing contacts ........................204
Convenience telephony .................... 193
Introduction ................................... 193
Coolant (engine)
Checking the level .........................460
Display message ............................ 404
Notes ............................................. 529
Temperature (on-board computer) . 379
Temperature gauge ........................ 372
Cooling
see Climate control
Copy protection (CD/DVD) ............... 229
Cornering light function Display message ............................ 401
Function/notes ............................. 280
Cruise control
Cruise control lever .......................331
Deactivating ................................... 332
Display message ............................ 415
Driving system ............................... 330
Function/notes ............................. 330
Important safety notes ..................330
LIM indicator lamp .........................331
Setting a speed .............................. 332
Storing and maintaining current
speed ............................................. 3318Index

ProblemPossible causes/consequences and M SolutionsVehicles with a
gasoline engine:
The engine is not
running smoothly and
is misfiring.There is a malfunction in the engine electronics or a mechanical
component of the engine management system.XOnly depress the accelerator pedal slightly.XHave the cause rectified immediately at a qualified specialist
workshop, e.g. an authorized Mercedes-Benz Center.
Otherwise, non-combusted fuel may get into the catalytic
converter and damage it.The coolant
temperature gauge
shows a value above
248 ‡ (120 †).The coolant level is too low. The coolant is too hot and the engine
is no longer being cooled sufficiently.XStop as soon as possible and allow the engine and the coolant
to cool down.XCheck the coolant level ( Y page 460). Observe the warning
notes as you do so and add coolant if necessary.Automatic transmission
Important safety notes
GWARNING
It is dangerous to shift the automatic
transmission out of parking position P or
neutral position N if the engine speed is
higher than idle speed. If your foot is not firmly
on the brake pedal, the vehicle could
accelerate quickly forward or in reverse. You
could lose control of the vehicle and hit
someone or something. Only shift into gear
when the engine is idling normally and when
your right foot is firmly on the brake pedal.
GWARNING
Keep in mind that turning off the engine alone
only will shift the automatic transmission into
neutral position N automatically.
Always shift the automatic transmission into
park position P before turning off the engine.
Otherwise the vehicle could roll away which
could result in an accident and/or serious
personal injury.
GWARNING
HYBRID vehicles: It is imperative that you read
the HYBRID Supplemental Operating
Instructions included in your vehicle literature
portfolio. You may otherwise not receive all
necessary safety information and warning for
the operation of your vehicle.
DIRECT SELECT lever
Overview of transmission positions
The DIRECT SELECT lever is on the right of the
steering column.
PPark position with parking lockRReverse gear310Automatic transmissionDriving and parking

Display messagesPossible causes/consequences and M Solutionsb
Please Switch Off
LightsThe lights are still switched on when you leave the vehicle. A
warning tone also sounds.XTurn the light switch to $ or c .
or
XIf the rear fog lamp is switched on: press the light switch in to
the stop.Adaptive High-beam
Assist inoperativeAdaptive Highbeam Assist is defective.XVisit a qualified specialist workshop.
Engine
Display messagesPossible causes/consequences and M Solutions+
Check Coolant
Level See Oper.
ManualThe coolant level is too low.XAdd coolant, observing the warning notes when doing so
( Y page 460).XIf coolant needs to be added more often than usual, have the
engine coolant system checked at a qualified specialist
workshop.GWARNING
Do not spill antifreeze on hot engine parts. Antifreeze contains ethylene glycol which may burn
if it comes into contact with hot engine parts. You could be seriously burned.
! The coolant level is too low. Avoid making long journeys with too little coolant in the cooling
system. The engine will otherwise be damaged.
The display messages and the corresponding symbol that indicate that the coolant level is
too low must not be ignored.
404Display messagesOn-board computer and displays

XTurn cap : counterclockwise and remove
it.XAdd engine oil.
Vehicles with oil level measurement
function in the on-board computer: observe
the information in the on-board computer
when doing so. Vehicles with oil dipstick: if
the oil level is at or below the MIN mark on
the oil dipstick,
add 0.55 to 1.1 US qt (0.5 to 1.0 l) engine
oil.XReplace cap : on the filler neck and turn
clockwise.
Ensure that the cap locks into place
securely.XCheck the oil level again with the oil
dipstick ( Y page 458) or the on-board
computer ( Y page 458).
Further information on engine oil
( Y page 527).
Checking and adding other service
products
Checking the coolant level
Only check the coolant level when the vehicle
is on a level surface and the engine has cooled
down.
XTurn the SmartKey to position
2 (Y page 303) in the ignition lock.
On vehicles with KEYLESS-GO, press the
Start/Stop button twice ( Y page 303).XCheck the coolant temperature display in
the instrument cluster.
The coolant temperature must be below
158 ‡ (70 †).GWARNING
In order to avoid any potentially serious burns:
R use extreme caution when opening the
hood if there are any signs of steam or
coolant leaking from the cooling system, or
if the coolant temperature display indicates
that the coolant is overheated.
R do not remove the pressure cap on the
coolant reservoir if the coolant temperature
is above 158 ‡ (70 †). Allow the engine to
cool down before removing the cap. The
coolant reservoir contains hot fluid and is
under pressure.
R using a rag, slowly turn the cap
approximately 1
/ 2 turn to relieve excess
pressure. If opened immediately, scalding
hot fluid and steam will be blown out under
pressure.
R do not spill antifreeze on hot engine parts.
Antifreeze contains ethylene glycol which
may burn if it comes into contact with hot
engine parts.XSlowly turn cap : half a turn counter-
clockwise and allow excess pressure to
escape.XTurn cap : further counter-clockwise and
remove it.
If the coolant is at the level of marker bar
= in the filler neck when cold, there is
enough coolant in coolant expansion
tank ;.
If the coolant is approximately 0.6 in
(1.5 cm) above marker bar = in the filler
neck when warm, there is enough coolant
in coolant expansion tank ;.460Engine compartmentMaintenance and care