brake sensor MERCEDES-BENZ G500 2008 W463 Owner's Manual

200 Controls in detail
Driving systems
Rear Parking AssistThe Rear Parking Assist system is an
electronic aid designed to assist the driver
during parking maneuvers. It visually and
audibly indicates the relative distance
between the rear of the vehicle and an
obstacle.
The Rear Parking Assist system is
automatically activated when you

switch on the ignition
and

move the gear selector lever to reverse
gearR
Warning!G
Rear Parking Assist (rear 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 remains
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 Rear Parking
Assist can be affected by dirty sensors,
especially at times of snow and ice. See
“Cleaning the Rear Parking Assist sensors”
(
page 318).
Interference caused by other ultrasonic
signals (e.g. workin g jackhammers, car
wash, or the air brakes of trucks) can cause
the system to send erra tic indications, and
should be taken into consideration.
Warning!G
Make sure no persons or animals are in the
area in which you are maneuvering. You
could otherwise injure them.
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201
Controls in detail
Driving systems
The Rear Parking Assist system monitors
the rear surrounding of your vehicle with
four sensors in the rear bumper.
1 Sensors 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 damage the sensors, see
“Cleaning the Rear Parking Assist sensors”
(
page 318).
!During parking maneuvers, pay special
attention to objects located above or below the
height of the sensors (e.g. planters or trailer
hitches). The Rear Parking Assist system will not
detect such objects at close range and damage
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
Rear Parking Assist system.
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290 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.
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 39).
Press buttonj ork until the
current inflation pressures for each tire
appear in the multifunction display.
Example illustration
iPossible differences between the readings
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 control system are more precise.
iWhen the vehicle has been parked for longer
than 20 minutes, the message
Tire pressure
displayed only after driving for a few
minutes
appears in the multifunction display.
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 mounted, the system
may still indicate the tire inflation pressure of the
removed road wheel for some minutes. If this
happens, keep in mind that the indicated value
where the spare wheel is mounted does not
reflect the actual spare tire inflation pressure.
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318 Operation
Vehicle care
Headlamps, brake lamps, tail lamps,
side markers, turn signal lenses
Use a mild car wash detergent, such as
Mercedes-Benz approved Car
Shampoo, with plenty of water.Cleaning the Rear Parking Assist
sensors
1 Sensors
Use a mild car wash detergent, such as
Mercedes-Benz approved Car
Shampoo, with plenty of water and a
soft, non-scratching cloth to clean
sensors 1 on the bumper.
!Only use window cleaning solutions that are
suitable for plastic lamp lenses. Window clean-
ing solutions which are not suitable may damage
the plastic lamp lenses of the headlamps. There-
fore, do not use abrasives, solvents or cleaners
that contain solvents.
Never apply strong force and only use a soft,
non-scratching cloth when cleaning the lenses.
Do not attempt to wipe dirty lenses with a dry
cloth or sponge.
Otherwise you may scratch or damage the lens
surface.
!Do not apply strong pr essure to the sensor
covers. Applying strong pressure may damage
the sensor covers.
Follow the instructions provided by the power
washer manufacturer on maintaining a distance
between the vehicle and the nozzle of the power
washer.
!To prevent scratches, never apply strong
force and only use a soft, non-scratching cloth
when cleaning the sensors. Do not attempt to
wipe dirty sensors with a dry cloth or sponge.
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340 Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
Tire pressure
displayed
only after
driving for
a few minutesThe tire inflation pressure is being checked.Drive the vehicle for a few minutes.
Tire pressure
monitor
currently
unavailableThe Advanced TPMS is unable to monitor the tire
pressure due to a nearby radio interference source.As soon as the causes for the malfunction are
no longer present, the Advanced TPMS auto-
matically becomes active again after a few
minutes driving.
Tire pressure
monitor
inoperativeThe Advanced TPMS is malfunctioning.Have the Advanced TPMS checked at an
authorized Mercedes-Benz Light Truck Center.
Have the wheel sensors installed by an autho-
rized Mercedes-Benz Light Truck Center.
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
Warning!G
Follow recommend tire inflation pressures.
Do not underinflate tires. Underinflated tires
wear excessively and/or unevenly, adverse-
ly affect handling and fuel economy, and are
more likely to fail from being overheated.
Do not overinflate tires. Overinflated tires
can adversely affect handling and ride com-
fort, wear unevenly, in crease stopping dis-
tance, and result in sudden deflation
(blowout) because they are more likely to
become punctured or damaged by road de-
bris, potholes etc.
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341
Practical hints
What to do if …
Display messagePossible cause/consequencePossible solution
Tire pressure
monitor
inoperative
No wheel
sensorsThere are wheels without appropriate wheel sensors
mounted (e.g. winter tires).Have the Advanced TPMS checked at an
authorized Mercedes-Ben
z Light Truck Center.
Have the wheel sensors installed at an
authorized Mercedes-Benz Light Truck Center.
Wheel sensor
missingOne or more sensors malfunction (e.g. battery is
empty).
The respective tire is indicated by - - - instead of the
tire inflation pressure in the multifunction display.Have the Advanced TPMS checked at an
authorized Mercedes-Benz Light Truck Center.
Have the appropriate wheel sensors installed at
an authorized Mercedes-Benz Light Truck Cen-
ter.
One or more wheels without appropriate wheel sen-
sors mounted (e.g. spare tire).
The respective tire is indicated by - - - instead of the
tire inflation pressure in the multifunction display.Have the Advanced TPMS checked at an
authorized Mercedes-Benz Light Truck Center.
Have the appropriate wheel sensors installed at
an authorized Mercedes-Benz Light Truck Cen-
ter.
Warning!G
Do not drive with a flat tire. A flat tire affects
the ability to steer or brake the vehicle.
You may lose control of the vehicle. Contin-
ued driving with a flat tire will cause exces-
sive heat build-up and possibly a fire.
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352 Practical hints
What to do if …
Display symbolDisplay messagePossible cause/consequencePossible solution
.3rd brake
lampThe high mounted brake lamp is malfunc-
tioning. This message will only appear if a
critical number of LEDs have stopped
working.Contact an authorized Mercedes-Benz
Light Truck Center as soon as
possible.
AUTO-Light
inoperativeThe light sensor is malfunctioning.
The headlamps switch on automatically.Contact an authoriz ed Mercedes-Benz
Light Truck Center as soon as
possible.
To switch off the headlamps
(U.S. vehicles only):
In the control system, set lamp
operation to manual mode
(
page 151).
Switch off the headlamps using the
exterior lamp switch (
page 117).
Brake lamp
leftThe left brake lamp is malfunctioning.Replace the bulb as soon as possible
(
page 383).
Brake lamp
rightThe right brake lamp is malfunctioning.Replace the bulb as soon as possible
(
page 383).
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439
Index
Lamps in instrument cluster 324
Lamps, exterior
Front 376
Messages in display 352–357
Rear 376
Replacing bulbs for front 378
Replacing bulbs for rear 383
Lamps, indicator and warning ABS 324–325, 327
Battery (SmartKey) 102
Brakes 326–327
check engine 328–329
Engine diagnostics 328–329
ESP
®330–331
Fuel reserve 331
Instrument cluster 324–332
SRS 69, 332
Turn signals 27
Language Setting 149
LATCH child seat anchors 82
Layout of poly-V-belt drive 412
Leather upholstery Cleaning 322 License plate lamps
Messages in display 354
Replacing bulbs 376, 385
Lifting Vehicle 389
Light alloy wheels Cleaning 320
Technical data 415, 416
Light sensor Message in display 352
Lighter see Cigarette lighter
Lighting 117 Automatic headlamp mode 118
Combination switch 122
Daytime running lamp mode 119
Exterior lamp switch 117
Front fog lamps 121
High beam flasher 122
High beams 122
Instrument cluster illumination 130
Interior, front 125
Interior, rear 126
Locator lighting 120
Low beams 117
Manual headlamp mode 118
Night security illumination 120 Parking lamps 117
Rear fog lamp 121
Settings (control system) 151
Limiting gear range 168
Limp Home Mode 169
Loading 206 Cargo compartment cover blind 214
Cargo tie-down rings 209
Instructions 208
Partition net* 210
Roof rack 206
Loading terminology 304
Loading the vehicle 280
Locator lighting 120 Setting 152
Locator lighting lamps Replacing bulbs 376
Locking 62, 100 Fuel filler flap 264
Global, SmartKey 102
Vehicle in an emergency 369
Loss of keys 103
Loss of Service and Warranty Information Booklet 409
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441
Index
Mirrors
Activating exterior rear view mirror parking position (Canada only) 178
Adjusting 46
Auto-dimming for rear view mirror 177
Exterior rear view mirrors 46
Interior rear view mirror 46
Storing exterior rear view mirror park- ing position (Canada only) 116
Mobile phone see Telephone*
MON 265
Monitoring reach Rear Parking Assist 201
Mph or km/h in speedometer setting 149
Multicontour seat* 109
Multifunction display 133 Selecting language 149
Multifunction display messages ABS 338
Advanced TPMS 340–341, 359–360
Backup lamp 355
Battery 342–343
Brake fluid 344
Brake lamps 352 Brake pads 345
Coolant 345–348
Cruise control 348
Doors 348
Electronic systems 363
Engine oil 349–350
ESP
®339
Front fog lamps 353
Fuel 363
Fuel filler cap 351
Fuel reserve tank 351
High beam headlamps 353
High mounted brake lamp 352
Hood 351
Key 351
Lamps, exterior 352–357
License plate lamps 354
Light sensor 352
Low beam headlamps 354
Parking brake 345
Parking lamps 354
Rear fog lamp 355
Side marker lamps 353
SRS 358
Tail lamps 355
Tailgate 362 Tele Aid 362
Telephone* 362
Tires 340–341, 359–360
Transfer case 361
Turn signal lamps 356–357
Washer fluid 363
Multifunction steering wheel 28, 134 Buttons 134
N
Navigation system Operating 144
See separate COMAND operating in-structions
Night security illumination 120 Setting 153
Normal occupant weight 305
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444 Index
R
RadioSatellite (USA only) 142
Selecting stations 141
Radio transmitters, control and operation 261
Range (distance to empty) Calling up 158
Range of sensors Rear Parking Assist 201
Reading lamp 32
Rear axle differential lock Switching on 176
Rear door window Blocking operation 85
Rear fog lamp Messages in display 355
Replacing bulbs 384
Rear interior lamps 126
Rear lamps Replacing bulbs 376
Rear lamps see Tail lamps Rear Parking Assist 200
Cleaning sensors 318, 319
Malfunction 203
Monitoring reach 201
Warning indicators 202
Rear seat bench Split 206
Rear seat head restraints Installing 111
Removing 111
Rear towing eye 402
Rear view camera 203
Rear view mirror auto-dimming 177
Rear view mirrors see Mirrors
Rear window defroster 181 Activating 181
Deactivating 181
Rear window wiper Intermittent wipe 60
Rear window wiper/washer 60
Recommended tire inflation pressure 306
Reconnecting Vehicle battery 396
Recovery services, Stolen vehicle (Tele Aid) 236 Refrigerant
Air conditioning 423
Refueling 264
Regular checks 265
Reinstalling Vehicle battery 396
Remote control SmartKey 100
Remote door unlock, Tele Aid* 235
Removing Cargo compartment cover blind 214
Vehicle battery 396
Wheel 391
Wiper blades 386
Removing mechanical key 368
Replacing Brake lamp bulbs 376
Bulbs 375
Front lamp bulbs 378
Rear lamp bulbs 383
SmartKey batteries 374
Wiper blades 386
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