2006 MERCEDES-BENZ R350 brake sensor

274 Controls in detailDriving systemsParktronic* (Parking assist)
The Parktronic system is an electronic aid
designed to assist the driver during
parking maneuvers. It visually and audibly
indicates the relative distance between the
vehicle and an obstacle.
The Parktronic system is automatically
activated when you switch on the ignition,
release the parking brake, and set the
automatic transmission to positionD,R,
orN.
The Parktronic system deactivates at
vehicle speeds exceeding approximately
11 mph (18 km/h). At lower vehicle
speeds, the Parktronic system turns on
again.The Parktronic system also deactivates
when you set the automatic transmission
to positionP or depress the parking brake
pedal.
The Parktronic system monitors the sur-
roundings of your vehicle with six sensors
in the front bumper and four sensors in the
rear bumper.
1Sensors in the front bumperWarning!
G
Parktronic is a supplemental system. It is
not intended to, nor does it replace, the
need for extreme care. The responsibility
during parking and other critical maneuvers
always rests with the driver.
Special attention must be paid to objects
with smooth surfaces or low silhouettes
(e.g. trailer couplings, painted posts, or road
curbs). Such objects may not be detected by
the system and can damage the vehicle.
The operational function of the Parktronic
system can be affected by dirty sensors,
especially at times of snow and ice. See
“Cleaning the Parktronic system sensors”
(page 399).
Interference caused by other ultrasonic
signals (e.g. working jackhammers, car
wash, or the air brakes of trucks) can cause
the system to send erratic indications, and
should be taken into consideration.
Warning!
G
Make sure no persons or animals are in the
area in which you are maneuvering. Other-
wise you run the risk of causing injury.

275 Controls in detail
Driving systems
Range of the sensors
To function properly, the sensors must be
free of dirt, ice, snow and slush. Clean the
sensors regularly, being careful not to
scratch or damaging the sensors, see
“Cleaning the Parktronic* system sensors”
(page 399).
Front sensors
Rear sensors
Center
approx. 40 in (100 cm)
Corners
approx. 24 in (60 cm)
Center
approx. 48 in (120 cm)
Corners
approx. 32 in (80 cm)
!During parking maneuvers, pay special
attention to objects located above or
below the height of the sensors
(e.g. planters or trailer hitches).
The Parktronic system will not detect
such objects at close range and dam-
age to your vehicle or the object may
result.
Ultrasonic signals from outside
sources (e.g. working jackhammers,
car wash or the air brakes of trucks)
may impair the operation of the
Parktronic system.

278 Controls in detailDriving systemsParktronic system malfunction
If only the red distance segments illumi-
nate and an acoustic warning sounds,
there is a malfunction in the Parktronic
system. The Parktronic system will auto-
matically switch off after 20 seconds and
the indicator lamp in the Parktronic switch
comes on.
Have the Parktronic system checked
by an authorized Mercedes-Benz Light
Truck Center as soon as possible.
If only the red distance segments illumi-
nate and no acoustic warning sounds, the
Parktronic system sensors are dirty (e.g.
slush, snow or ice) or there is an interfer-
ence from other radio or ultrasonic signals
(e.g. working jackhammers, car wash or
the air brakes of trucks). The Parktronic
system will automatically switch off after
20 seconds and the indicator lamp in the
Parktronic switch comes on.

Switch off the ignition (
page 38).

Clean the Parktronic system sensors
(page 399).

Switch on the ignition (
page 38).
or

Check the Parktronic system operation
at another location to rule out interfer-
ence from outside radio or ultrasonic
signals.

369 Operation
Tires and wheels
The TPMS only functions on wheels that
are equipped with the proper electronic
sensors. It monitors the tire inflation pres-
sure, as selected by the driver, in all four
tires. A warning is issued to alert you to a
decrease in pressure in one or more of the
tires.Warning!
G
The TPMS does not indicate a warning for
wrongly selected inflation pressures. Always
adjust tire inflation pressure according to
the placard on the driver’s door B-pillar or, if
available, the supplemental tire pressure in-
formation on the inside of the fuel filler flap.
The TPMS is not able to issue a warning due
to a sudden dramatic loss of pressure (e.g.
tire blowout caused by a foreign object). In
this case bring the vehicle to a halt by care-
fully applying the brakes and avoiding
abrupt steering maneuvers.
Warning!
G
Each tire, including the spare (if provided),
should be checked monthly when cold and
inflated to the inflation pressure recom-
mended by the vehicle manufacturer on the
vehicle placard or the tire inflation pressure
label. (If your vehicle has tires of a different
size than the size indicated on the vehicle
placard or the tire inflation pressure label,
you should determine the proper tire infla-
tion pressure for those tires).
As an added safety feature, your vehicle has
been equipped with a tire pressure monitor-
ing system (TPMS) that illuminates a low tire
pressure telltale when one or more of your
tires is significantly underinflated. Accord-
ingly, when the low tire pressure telltale illu-
minates, you should stop and check your
tires as soon as possible, and inflate them to
the proper pressure. Driving on a significant-
ly underinflated tire causes the tire to over-
heat and can lead to tire failure.
Underinflation also reduces fuel efficiency
and tire tread life, and may affect the vehi-
cle’s handling and stopping ability. Please
note that the TPMS is not a substitute for
proper tire maintenance, and it is the
driver’s responsibility to maintain correct
tire pressure, even if underinflation has not
reached the level to trigger illumination of
the TPMS low tire pressure telltale.
Your vehicle has also been equipped with a
TPMS malfunction indicator to indicate
when the system is not operating properly.
The TPMS malfunction indicator is com-
bined with the low tire pressure telltale.
When the system detects a malfunction, the
telltale will flash for approximately 1 minute
and then remain continuously illuminated.
This sequence will continue upon subse-
quent vehicle start-ups as long as the mal-
function exists. When the malfunction
indicator is illuminated, the system may not
be able to detect or signal low tire pressure
as intended.


372 OperationTires and wheelsThe TPMS only functions on wheels that
are equipped with the proper electronic
sensors. It monitors the tire inflation pres-
sure, as selected by the driver, in all four
tires. A warning is issued to alert you to a
decrease in pressure in one or more of the
tires.
Tire pressure inquiries are made using the
multifunction display. The present inflation
pressures are displayed only after a few
minutes’ travel time.
Switch on the ignition (
page 38).

Press thej or kbutton until
the current inflation pressures for each
tire appear in the multifunction display.iPossible differences between the read-
ings of a tire pressure gauge of an air
hose, e.g. gas station equipment, and
the vehicle’s control system can occur.
Usually the readings issued by the con-
trol system are more precise.
iWhen the message
Tire pressure
displayed only after driving a few
minutes
appears in the multifunction
display, the individual inflation pres-
sure values are matched with the tires.
The individual values are displayed af-
ter a few minutes driving.
Warning!
G
It is the driver’s responsibility to calibrate
the TPMS on the recommended cold infla-
tion pressure. Underinflated tires affect the
ability to steer or brake the vehicle. You
might lose control over the vehicle.
iWith a spare wheel without wheel sen-
sor mounted, the system may still indi-
cate the tire inflation pressure of the
removed wheel for some minutes. If
this happens, keep in mind that the in-
dicated value where the spare wheel is
mounted does not reflect the actual
spare tire inflation pressure.Warning!
G
The TPMS does not indicate a warning for
wrongly selected inflation pressures. Always
adjust tire inflation pressure according to
the placard on the driver’s door B-pillar or, if
available, the supplemental tire pressure in-
formation on the inside of the fuel filler flap.
The TPMS is not able to issue a warning due
to a sudden dramatic loss of pressure (e.g.
tire blowout caused by a foreign object). In
this case bring the vehicle to a halt by care-
fully applying the brakes and avoiding
abrupt steering maneuvers.

545 Index
L
Labels, identification 510
Lamp bulbs, exterior 465
Lamps, exterior
Front 466
Light sensor 444
Messages in display 442, 444
Rear 466
Lamps, indicator and warning
ABS 404
Air bag Off 76
Battery (SmartKey with
KEYLESS-GO*) 118
Battery (SmartKey) 112
Brakes 405
CHECK ENGINE 407, 408
CHECK Engine malfunction indicator
lamp 408
Engine diagnostics 407, 408
ESP
®
409
Front fog lamps 147
Fuel reserve 409
Rear fog lamp 147
Seat belts 410
SRS 411Language
Multifunction display 178
Setting 178
LATCH child seat anchors 92
LATCH child seat mounts 92
Layout of poly-V-belt drive 512
Lever
For cruise control 264
License plate lamps
Messages in display 444
Replacing bulbs 466, 474
Light alloy wheels
Cleaning 401
Light sensor 444
Lighter see cigarette lighter*
Lighting 147
Automatic headlamp mode 148
Cargo compartment lamp 157
Daytime running lamp mode 149
Door entry lamps 157
Front fog lamps* 151
High beams 151
Instrument cluster illumination 158
Interior 154
Locator lighting 150
Low beam 147Night security illumination 150
Parking lamps 147
Rear fog lamp 151
Settings (control system) 182
Standing lamps 147
Limiting the gear range 202
Limp Home Mode 207
Line of fall 531
Loading 279
Cargo compartment cover
blind* 288
Cargo tie-down rings 281
Hooks 282
Instructions 280
Parcel nets 298
Partition net* 290
Roof rack 279
Loading terminology 385
Loading the vehicle 356
Locator lighting 150
Setting 183
Lock button 531
Lock buttons
Door handle (KEYLESS-GO*) 68

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

556 IndexUseful features 294
Ashtrays* 302
Cup holders 299
Power outlets 306
Storage compartments 294
Tele Aid* 311
Telephone* 310
V
Vehicle
Data recording 20
Individual settings 174, 177
Locking in an emergency 460
Lowering 485
Proper use of 17
Unlocking in an emergency 459
Vehicle capacity weight 388, 534
Vehicle care
Engine cleaning 397
Light alloy wheels 401
Ornamental moldings 399
Paintwork 397
Parktronic* system sensor 399
Plastic and rubber parts 402Power washer 396
Steering wheel 402
Tar stains 396
Vehicle washing 397
Vehicle identification number (VIN) 511
Vehicle jack 456
Vehicle lighting
Checking 344
Vehicle loading terminology 385
Vehicle maximum load on the tire 388
Vehicle tool kit 454
Collapsible wheel chock 455, 457
Vehicle washing 397
VIN (Vehicle Identification Number) 511,
534W
Warning indicators
Parktronic* 276
Warning sounds
Drivers seat belts 77
Parking brake 57
Warranty coverage 509
Washer fluid see Windshield washer fluid
Washing the vehicle 395
Wear pattern (tires) 389
Weights 520
Wheel change
Tightening torque 485
Wheels
Tires and wheels 353
Window curtain air bags 76
Windows, cleaning 400
Windshield
Cleaning wiper blades 400
Defogging 224, 238