Page 647 of 761

646 Practical hints
What to do if …?
During severe operating conditions,
e.g. stop-and-go traffic, the coolant tem-
perature may rise close to 248°F (120°C).
Display Possible cause/consequencePossible solution
Coolant level
Stop vehicle!
Switch engine offThe coolant is too hot. Stop the vehicle in a safe location or as soon
as it is safe to do so and immediately turn off
the engine.
Engage the electronic parking brake
(
page 395).
Only start the engine again after the message
disappears. You could otherwise damage the
engine.
Observe the coolant temperature gauge in
the instrument cluster (
page 28).
Warning!G
Driving when your engine is overheated
can cause some fluids which may have
leaked into the engine compartment to
catch fire. You could be seriously
burned.
Steam from an overheated engine can
cause serious burns which can occur
just by opening the engine hood. Stay
away from the engine if you see or hear
steam coming from it.
Stop the vehicle in a safe location away from
other traffic. Turn off the engine, get out of
the vehicle and do not stand near the vehicle
until the engine has cooled down.!The engine should not be operated with the
coolant temperature above 248°F (120°C). Do-
ing so may cause serious engine damage which
is not covered by the Mercedes-Benz Limited
Warranty.
Page 737 of 761

736 Index
Ashtrays 503
Aspect ratio 576
Audio (COMAND) 112
CD mode 120
DVD mode 120
MP3 mode 120
Audio (Control system
instrument cluster) 271
CD changer 272
CD/DVD changer 272
DVD changer 272
Audio DVD
Fast forward/rewind (COMAND) 122
Menu overview (COMAND) 119
Pause function (COMAND) 121
Stop function (COMAND) 121
Auto-dimming, Rear view mirrors 363
Automatic climate control 469
Adjusting air distribution
(COMAND) 253
Adjusting air flow from air vents
(COMAND) 256
Adjusting air volume (COMAND) 253
Adjusting the footwell temperature
(COMAND) 255
Air recirculation mode 474Central climate control menu
(COMAND) 254
Central menu for rear climate control*
(COMAND) 257
Defrosting 472
Operating the rear climate control*
from the front 257
Operating via COMAND 251
Rear window defroster 473
Selecting Mono mode
(COMAND) 255
Setting temperature (COMAND) 252
Setting the temperature 472
Setting the temperature in the rear
passenger compartment 478
Switching cooling on or off
(COMAND) 254
Automatic headlamp mode 282, 372
Automatic lighting control, Interior
lighting 378
Automatic locking when driving 342
Automatic shift program 409Automatic transmission
Accelerator position 406
Automatic shift program 409
Emergency operation
(limp-home mode) 416
Fluid 724
Fluid level 546
Gear ranges 408
Gear selector lever 399
Gear shifting malfunctions 416
Hill start assist system 407
Kickdown 406
Kickdown, manual shift program
(AMG vehicles) 415
Manual shift program mode
(AMG vehicles) 413
Program mode selector switch 409
Shifting procedure 402
Starting the engine 389
Steering wheel gearshift control 411
Transmission fluid 546
Transmission positions 403
Page 750 of 761

749 Index
OCS 47
Self-test 51
Odometer 268
Oil
Filler neck 546
Oil level see Engine oil
One-touch gearshifting 411
Operating safety 19
Voice Control* 284
Ornamental moldings, Cleaning 588
Outside temperature indicator 29, 418
Overdue maintenance service 583
Overhead control panel 33
Override switch 63P
Paintwork, Cleaning 586
Panic alarm
Audible alarm and flashing exterior
lamps 65
Panic button 65
Panorama roof with power tilt/sliding
panel* 489
Opening/closing 490
Opening/closing in an
emergency 674
Synchronizing 492
Panorama roof with tilt/sliding panel*
Cleaning 593
Parcel net in front passenger
footwell 496
Park Assist* 448
Cleaning system sensors 590
Messages in display 622
System sensors 590
Warning indicators 29, 451
Parking 394, 530
Parking and standing lamps
Replacing bulbs 679Parking lamps
Messages in display 656
Parking position
Exterior rear view mirrors 364
Parktronic system* 444
Parktronic*
Cleaning system sensors 589
Malfunctioning 448
System sensors 589
Warning indicators 29, 446
Parts service 710
PASS AIR BAG OFF indicator lamp see
Front passenger front air bag off indica-
tor lamp
Passenger compartment 535
Passenger safety see Occupant safety
PCMCIA card
Ejecting (COMAND) 118
Loading (COMAND) 117
Pedals 527
Plastic parts, cleaning 593
POIs 196
Poly-V-belt drive 714
Layout 714
Potential problems associated with under-
inflated and overinflated tires 567