alarm MERCEDES-BENZ R500 2006 W251 Owner's Guide

191 Controls in detail
Control system
Setting fold-in function for exterior rear
view mirrors*
Using this function, you can set the
exterior rear view mirrors to be automati-
cally folded in when you lock your vehicle.

Move the selection marker with
buttonæ orç to the Convenience
submenu.

Press buttonj ork repeatedly
until the message
Fold in mirrors
when locking
appears in the multi-
function display.
The selection marker is on the current
setting.

Press buttonæ orç to switch
the function
on or
off
.
Vehicle configuration
In the
Vehicle configuration
menu you
can determine whether the tow-away
alarm is to be enabled or disabled. With
this function set to
on, the tow-away alarm
is armed when you lock your vehicle. With
this function set tooff
, the tow-away
alarm is not armed automatically when you
lock your vehicle. You will then have to
switch on the tow-away alarm manually
(
page 107).

Press buttonè orÿ repeatedly
until the
Vehicle configuration
menu
appears in the multifunction display.

Press buttonæ orç to switch
the tow-away alarm
on or
off
.
iWith this function set to
on and the ex-
terior rear view mirrors folded in using
the button on the door control panel
(
page 211), the exterior rear view
mirrors will not fold out when you
switch on the ignition. You will then
have to fold out the exterior rear view
mirrors using the button on the door
control panel (
page 211).

320 Controls in detailUseful features
Garage door opener*
The integrated remote control is capable of
operating up to three separately controlled
devices. It provides a convenient way to
replace up to three hand-held remote
controls used to operate devices such as
garage door openers, gate openers, or
other devices compatible with HomeLink
®
or some other systems.
Before the integrated remote control can
be used, it must be programmed to the
garage door opener, gate operator or other
device you wish to operate. See the follow-
ing instructions for programming informa-
tion.
Interior rear view mirror with integrated
remote control1Indicator lamp
2 3 4Signal transmitter button
Needed for programming (not part of vehi-
cle equipment):
5Hand-held remote control of ga-
rage door opener, gate operator
or other device
6Hand-held remote control but-
ton
iWhen the anti-theft alarm or the
tow-away alarm stays on for more than
30 seconds, a call is initiated automat-
ically to the Response Center. See
anti-theft alarm system (
page 104)
and tow-away alarm (
page 106).

459 Practical hints
Unlocking / locking in an emergency
Unlocking / locking in an emergency
Unlocking the vehicle
If you cannot unlock the vehicle with the
SmartKey or KEYLESS-GO*, open the driv-
er’s door using the mechanical key.
Removing the mechanical key
SmartKey1Mechanical key locking tab
2Mechanical key
SmartKey with KEYLESS-GO*1Mechanical key locking tab
2Mechanical key
Move locking tab1 in direction of
arrow.

Slide mechanical key2 out of the
housing.
iUnlocking the driver’s door with the
mechanical key will trigger the
anti-theft alarm system.
To cancel the alarm:

Press buttonŒ or‹on the
SmartKey.


Insert the SmartKey in the starter
switch.
Vehicles with KEYLESS-GO*:

Grasp an outside door handle.
The SmartKey with KEYLESS-GO
must be within 3 ft (1 m) of the ve-
hicle.


Press the KEYLESS-GO start / stop
button (
page 40).
The SmartKey with KEYLESS-GO
must be inside the vehicle.

499 Practical hints
Towing the vehicle
Towing the vehicle
Mercedes-Benz recommends that the
vehicle be transported with all wheels off
the ground using flatbed or appropriate
wheel lift/dolly equipment. This method is
preferable to other types of towing.When circumstances do not permit the
recommended towing methods, the
vehicle may be towed with all wheels on
the ground only so far as necessary to have
the vehicle moved to a safe location where
the recommended towing methods can be
employed.
!Use flatbed or wheel lift/dolly equip-
ment, with the SmartKey in starter
switch turned to position0.
Do not tow with sling-type equipment.
Towing with sling-type equipment over
bumpy roads will damage radiator and
supports.
To prevent damage during transport,
do not tie down vehicle by its chassis or
suspension parts. Use the towing eyes.
Switch off the ESP
® (page 101),
tow-away alarm (
page 107) and the
automatic central locking
(
page 130).
Do not tow-start the vehicle.
!Do not tow with one axle raised. Doing
so could damage the transfer case,
which is not covered by the
Mercedes-Benz Limited Warranty.
All wheels must be on or off the ground.
Observe instructions for towing the ve-
hicles with all wheels on the ground.
!When towing the vehicle with all wheels
on the ground, the automatic transmis-
sion must be in positionN and the
SmartKey must be in starter switch
position2.
When towing the vehicle with all wheels
on the ground, the vehicle may be
towed only for distances up to 30 miles
(50 km) and at a speed not to exceed
30 mph (50 km / h).
If the vehicle is towed with the front
axle raised (observe instructions re-
garding flexible drive shaft), the engine
must be shut off (SmartKey in starter
switch position1). Otherwise, the
4-ETS may become engaged which may
cause loss of towing control.

501 Practical hints
Towing the vehicle
Installing towing eye bolts
The front towing eye is located behind a
cover on the passenger side below the
front bumper.
1Towing eye cover
iThe vehicle cannot be started via
tow-start.iIf the battery is disconnected or dis-
charged, the automatic transmission
will remain locked in positionP and the
SmartKey will not turn in the starter
switch. For more information, see “Bat-
tery” (
page 487) and “Jump starting”
(
page 496).
!When towing the vehicle with all wheels
on the ground, note the following:
With the automatic central locking
activated and the ignition in position2
(page 38), the vehicle doors lock if
the left front wheel is turning at a speed
of approx. 9 mph (15 km / h) or above.
To prevent the vehicle doors from
locking, deactivate the automatic
central locking (
page 130).
Switch off the tow-away alarm
(
page 107).
Towing of the vehicle should only be
done using the towing eye. Never
attach tow cable, tow rope or tow rod
to vehicle chassis, frame or suspension
parts.

535 Index
A
ABS 97, 529
ABS control 97
Malfunction indicator lamp 404
Messages in display 418
Warning lamp 404
Accelerator position, automatic
transmission 203
Accessory weight 385, 529
Accident
In case of 63
Activating
Air circulation mode 242
Air conditioning (cooling) 226
Air recirculation mode 225, 239
Anti-theft alarm system 105
Central locking (control system) 188
Defrosting 223
Easy-entry/exit feature* 189
Electric air pump 483
ESP
®
102
Exterior headlamps 58
Hazard warning flasher 154
Headlamps 58
High beams 151
Ignition 38Immobilizer 66, 104
Rear window defroster 215
Rear window wiper 62
Residual heat 243
Residual heat* 228
Seat heating* 142
Tow-away alarm 107
Warning indicators (Parktronic*) 276
Windshield wipers 59
Adding
Coolant 351
Engine oil 349
Additional turn signal lamps
Replacing bulbs 466
Adjusting 42
Air distribution 222, 236
Air volume 222, 237
Backrest tilt 44
Exterior rear view mirror 48
Head restraint height 44
Head restraint tilt 45
Instrument cluster illumination 158
Interior rear view mirror 48
Mirrors 47
Multicontour seat* 136
Seat cushion depth 136Seat cushion tilt 44
Seat fore and aft adjustment 43
Seat height 44
Seats 42
Steering column height 47
Steering wheel 45
Adjusting steering column in or out 47
Adjusting steering column up or down 47
Air bags 71
Children 72
Front 75
Passenger 75
Safety guidelines 74
Side impact 76
Window curtain 76
Air conditioning
Turning off 226
Turning on 226
Air conditioning refrigerant 523
Air distribution
Adjusting 222, 236
Air pressure 385, 529
Air pressure see Tire inflation pressure
Air pump, electric
Turning on 483

536 IndexAir recirculation mode 224, 239
Activating 225, 239
Deactivating 226, 240
Air volume
Adjusting 222, 237
AIRMATIC* 269
Alarm
Audible 95, 106
Canceling 106
Visual 104
Alarm system
Anti-theft 104
Alignment bolt (vehicle tool kit) 481, 529
Anticorrosion/antifreeze 527
Antiglare
Automatic 209
Antilock brake system (ABS) 529
Anti-theft alarm system
Arming 105
Canceling alarm 106
Disarming 106
Anti-theft systems
Anti-theft alarm system 104
Immobilizer 104
Tow-away alarm 106Aquaplaning see Hydroplaning
Armrest
Storage compartment in front of 296
Storage compartments 296
Ashtray
Front center console 303
Aspect ratio 385, 529
ATF (automatic transmission fluid) 350
AUDIO menu 170
Selecting radio station 170
Selecting satellite radio* station 171
Audio system
CD mode 171
Automatic antiglare for rear view
mirror 209
Automatic central locking
Activating/deactivating (control
system) 188
Automatic climate control*
Front defroster 238
Residual ventilation 243Automatic climate control* (3-zone) 230
Adjusting air distribution 236
Adjusting air volume 237
Air recirculation mode 239
Rear passenger compartment 244
Residual heat utilization 243
Setting the temperature 236
Automatic headlamp mode 148
Automatic lighting control
Activating 155
Deactivating 155
Automatic locking when driving 130
Automatic shift program
Automatic transmission* 204
Automatic transmission
Accelerator position 203
Emergency operation (Limp Home
Mode) 207
Gear ranges 202
Gear selector lever position 199, 200
Gear shifting malfunctions 207
Kickdown 203
Transmission fluid 350
Automatic transmission*
Automatic shift program 204

540 IndexD
Daytime running lamp mode 149
Setting 182
Deactivating
Air conditioning 227
Air conditioning (cooling) 242
Air recirculation mode 226, 240
Alarm 106
Anti-theft alarm system 106
Automatic climate control*
(3-zone) 234
Central locking (control system) 188
Climate control system 220
Cruise control 266
Defrost 223, 238
Engine 66
ESP
®
101
Hazard warning flasher 154
Headlamps 65
Immobilizer 104
Interior lighting delayed
switch-off 185Rear passenger compartment ventila-
tion and climate control 245
Rear window defroster 215
Rear window wiper 62
Residual heat 228, 243
Seat heating* 143
Tow-away alarm 107
Deep water see Standing water
Defogging
Windshield 224, 238
Delayed switch-off
Interior lighting 185
Department of Transportation see DOT
Dialing
A number (telephone*) 195
Difficulties
While driving see Problems while driv-
ing
Digital speedometer 168
Direction of rotation (tires) 356Discharged battery
Jump starting 496
Disconnecting
Vehicle battery 489
Display
Selecting 179
Displays
Digital speedometer 169
Maintenance service indicator 392
Messages 347
Selecting 179
Showing malfunctions 173
Distance to empty (range)
Calling up 192
Door control panel 34
Door entry lamps 157
Door handle 34
Door unlock
With Tele Aid* 319
Door windows 248
Automatic closing 250
Automatic opening 250

548 Index
Panorama sliding/pop-up roof 260
Power tilt/sliding sunroof* 462
Tailgate 122
Tilt/sliding sunroof* 255
Tilt/Sliding sunroof* in an
emergency 462
Windows 248
Opening the tailgate from the inside 122,
123, 124
Opening the tailgate from the inside
electrically* 123
Opening the tailgate from the
outside 122
Operating
CD player 171
Radio 170
Radio transmitters 339
Telephone* 194
Vehicle outside the USA or
Canada 13
Operating safety 17
Operator’s Manual 10
Ornamental moldings 399
Outside temperature indicator 159
Overhead control panel 31
Overspeed range 532P
Paintwork 397
Panic alarm 95
Panic button on remote control 95
Panorama roof with power tilt/sliding
panel* 259
Panorama roof with tilt/sliding panel
Cleaning 401
Parcel nets 298
Parking 334
Parking and locking 64
Parking brake 56, 65
Engaging 65
Message in display 431
Releasing 56
Parking lamps
Replacing bulbs 466
Parking position
Exterior rear view mirrors 146
Parktronic* 274, 532
Cleaning system sensor 399
Range of the sensors 275
Sensor cover 399
Warning indicators 276Partition net* 290
Engaging 291
Removing 292, 293
Tightening 291
Parts service 508
Passenger compartment 338
Fuse box 505
Interior lighting 154
Passenger safety see Occupant safety
Pedals 331
Phone book*
Loading 195
Quick search 195
Phone number*
Dialing 195
Redialing 196
Plastic and rubber parts
Cleaning 402
Plastic parts, cleaning 401
Poly-V-belt drive 532
Layout 512
Positions (Memory function*)
Recalling from memory 145
Storing in memory 145

555 Index
Tire inflation pressure
Checking 344, 363, 365
Tire inflation pressure see the placard on
the fuel filler flap
Tire inspection 354
Tire load rating 387, 534
Tire ply composition and material
used 388
Tire speed rating 336, 378, 388, 534
Tire terminology 385
Tire traction 335
Tires 353, 514
Direction of rotation 356
Driving instructions 334
Low tire pressure telltale 412
Retreads 353
Rims and tires 514
Rotating 388
Run Flat Indicator 366
Service life 354
Temperature 364, 384
TPMS malfunction telltale 412
Tread depth 355, 390
Wear pattern 389
Winter 390
Tools 454Tow-away alarm 106
Arming 106
Disarming 106
Disarming for transport 106
Towing eye
Front 501
Rear 502
Towing the vehicle
Stranded vehicle 502
TPMS malfunction telltale* 25
Traction 205, 388, 534
Transfer case 534
Tread 388, 534
Tread depth 355
Tread depth (tires) 390
Treadwear indicators 388, 534
Trip computer 192
Trip odometer
Resetting 159
Turn signal lamps
Cleaning lenses 399
Replacing bulbs 466
Turn signals 58
Turning off the engine 66
TWR (Tongue Weight Rating) 534U
Uniform Tire Quality Grading
Standards 388, 534
Units
Setting speedometer units 178
Unlocking 36, 110
Centrally from inside 131
Driver’s door in an emergency 459
Fuel filler flap 342
Global 112
Global (SmartKey with
KEYLESS-GO*) 118
In an emergency 459
Selective settings 112, 118
Tailgate with SmartKey 114
Vehicle in an emergency 319
With the SmartKey 36
With the SmartKey with
KEYLESS-GO* 114
Unlocking and opening
Tailgate with KEYLESS-GO* 120
Unlocking with KEYLESS-GO* 37
Uphill driving
Cruise control 265