2006 MERCEDES-BENZ CLS500 radio

332 OperationTires and wheelsTire and loading terminology
Accessory weight
The combined weight (in excess of those
standard items which may be replaced) of
automatic transmission, power steering,
power brakes, power windows, power
seats, radio, and heater, to the extent that
these items are available as
factory-installed equipment (whether
installed or not).
Air pressure
The amount of air inside the tire pressing
outward on each square inch of the tire.
Air pressure is expressed in pounds per
square inch (psi), or kilopascal (kPa) or
bars.
Aspect ratio
Dimensional relationship between tire
section height and section width
expressed in percentage.Bar
Another metric unit for air pressure. There
are 14.5038 pounds per square inch (psi)
to 1 bar; there are 100 kilopascals (kPa)
to 1 bar.
Bead
The tire bead contains steel wires wrapped
by steel cords that hold the tire onto the
rim.
Cold tire inflation pressure
Tire inflation pressure when your vehicle
has been sitting for at least 3 hours or driv-
en no more than 1 mile (1.6 km).
Curb weight
The weight of a motor vehicle with stan-
dard equipment including the maximum
capacity of fuel, oil, and coolant, and, if so
equipped, air conditioning and additional
optional equipment, but without passen-
gers and cargo.DOT (D
epartment o
f T
ransportation)
A tire branding symbol which denotes the
tire meets requirements of the
U.S. Department of Transportation.
GAWR (G
ross A
xle W
eight R
ating)
The GAWR is the maximum permissible
axle weight. The gross vehicle weight on
each axle must never exceed the GAWR for
the front and rear axle indicated on the
certification label located on the driver’s
door B-pillar.
GVW (G
ross V
ehicle W
eight)
The GVW comprises the weight of the
vehicle including fuel, tools, spare wheel,
installed accessories, passengers and
cargo and, if applicable, trailer tongue
load. The GWV must never exceed the
GWVR indicated on the certification label
located on the driver’s door B-pillar.

371 Practical hints
What to do if …
Display messages
Possible cause/consequence
Possible solution
Tire pressure

displayed only
after driving a
few minutes
The tire inflation pressure is being
checked.

Drive the vehicle for a few minutes.
Tire pres. monitor
currently unavailable
The Advanced TPMS* is unable to
monitor the tire pressure due to

a nearby radio interference
source.


excessive wheel sensor temper-
atures.

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 pres. monitor
inoperative
The Advanced TPMS* is
malfunctioning.

Have the Advanced TPMS* checked by an au-
thorized Mercedes-Benz Center.

386 Practical hintsWhat to do if …Display symbol
Display messages
Possible cause/consequence
Possible solution
F
Key
Check battery
The SmartKey with KEYLESS-GO* batter-
ies are discharged.

Change the batteries (
page 408).
Key
not recognized
The SmartKey with KEYLESS-GO* is not
recognized while the engine is running
because

the SmartKey with KEYLESS-GO* is
not in the vehicle


there is strong radio-frequency inter-
ference

Stop the vehicle as soon as it is safe
to do so.

Search for the SmartKey.
Otherwise the vehicle cannot be cen-
trally locked nor can the engine be
started again after the engine is
stopped.
Key
not recognized
The SmartKey with KEYLESS-GO* is mo-
mentarily not recognized.

Change the position of the SmartKey
in the vehicle.

Operate the vehicle with the
SmartKey in the starter switch if nec-
essary.

472 Technical termsBar
(
page 332)
BAS
(Brake A
ssist S
ystem)
System for potentially reducing braking
distances in emergency braking situa-
tions. The system is activated when it
senses an emergency based on how
fast the brake is applied.
Bead
(
page 332)
Bi-Xenon headlamps*
Headlamps which use an electric arc as
a light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.CAC
(C
ustomer A
ssistance C
enter)
Mercedes-Benz customer service
center which can help you with any
questions about your vehicle and pro-
vide assistance in the event of a break-
down.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control
vehicle functions such as door locking
or windshield wiping.
Cockpit
All instruments, switches, buttons and
indicator/warning lamps in the passen-
ger compartment needed for vehicle
operation and monitoring.Cold tire inflation pressure
(
page 332)
Collapsible tire
An especially compact spare tire that
must be inflated with a provided air
pump before using. It should only be
used to bring the vehicle to the nearest
service station.
COMAND
(Cockpit M
anagement and D
ata
System)
Information and operating center for
vehicle sound and communications
systems, including the radio and navi-
gation system, as well as other optional
equipment (CD changer, telephone,
etc.).

478 Technical termsTreadwear indicators
(
page 334)
Uniform Tire Quality Grading Standards
(page 334)
Vehicle capacity weight
(page 334)
Vehicle level control
The ground clearance of the vehicle is
automatically controlled according to a
selected setting and speed.The driver
can set the ground clearance manually
for example on very rough roads.Vehicle maximum load on the tire
(
page 334)
VIN
(Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Voice control system*
Voice control system for car phones,
portable cell phones and audio sys-
tems (radio, CD, etc.).

490 IndexParktronic* 475
Cleaning system sensors 347
Malfunctioning 245
Warning sounds 245
Parts service 444
Passenger compartment
Interior lighting 141
Interior rear view mirror 44
Main fuse box 442
Parcel net in the front passenger
footwell 254
Passenger safety see occupant safety 64
Pedals 279
Phone number*
Redialing 175
Plastic parts, cleaning 349
Poly-V-belt drive 475
Layout 447
Positions (Memory function*)
Recalling from memory 132
Storing into memory 132
Potential problems associated with
underinflated and overinflated
tires 321
Power assistance 280
Power outlet 259Power seat
Adjusting backrest tilt 40
Adjusting head restraint height 41
Adjusting head restraint tilt 41
Adjusting seat cushion tilt 40
Adjusting seat height 40
Memory function 131
Seat fore and aft adjustment 40
Power tilt/sliding sunroof 219
Messages in display 392
Opening/closing 219
Opening/closing in an
emergency 406
Stopping 220
Synchronizing 221
Power train 476
Power washer 343
Power windows 214
Automatic opening/automatic
closing 216
Cleaning 347
Operating 214
Rear door window, Blocking
operation 82
Side windows 214
Synchronizing 216Practical hints 352
Problems
While driving 56
With vehicle 17
Product information 9
Production options weight 333
Program mode selector switch 476
Automatic transmission 182
PSI 333
PULSE function (Massage function) 128
Push-start see Tow-start
R
Radio
Selecting satellite radio stations*
(USA only) 154
Selecting stations 153
Radio transmitters 287
Range (distance to empty) 172
Rear door window
Blocking operation 82
Rear fog lamp
Switching on 138
Rear lamp 412
Rear lamps see Tail lamps