2005 MERCEDES-BENZ G55AMG brakes

271 Operation
Tires and wheels
Tire 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 three hours or
driven no more than one 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.
GTW (G
ross T
railer W
eight)
The GTW is the weight of the trailer plus
the weight of all cargo, equipment, luggage
etc. loaded on the trailer.

272 OperationTires and wheelsGVW (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.
GVWR (G
ross V
ehicle W
eight R
ating)
This is the maximum permissible vehicle
weight of the fully loaded vehicle (weight of
the vehicle including all options, passen-
gers, fuel, and cargo and, if applicable,
trailer tongue load). It is indicated on
Certification label located on the driver’s
door B-pillar.
Kilopascal (kPa)
The metric unit for air pressure. There are
6.9 kPa to one psi; another metric unit for
air pressure is bars. There are
100 kilopascals (kPa) to one bar.Maximum load rating
The maximum load in kilograms and
pounds that can be carried by the tire.
Maximum loaded vehicle weight
The sum of curb weight, accessory weight,
vehicle capacity weight and production
options weight.
Maximum tire inflation pressure
This number is the greatest amount of air
pressure that should ever be put in the tire
under normal driving conditions.
Normal occupant weight
The number of occupants the vehicle is
designed to seat, multiplied by
68 kilograms (150 lbs).
Occupant distribution
The distribution of occupants in a vehicle
at their designated seating positions.Production options weight
The combined weight of those installed
regular production options weighing over
5 lbs (2.3 kilograms) in excess of those
standard items which they replace, not
previously considered in curb weight or
accessory weight, including heavy duty
brakes, ride levelers, heavy duty battery,
and special trim.
PSI (P
ounds per s
quare i
nch)
A standard unit of measure for air pressure
-> bar, kilopascal (kPa).
Recommended tire inflation pressure
Recommended tire inflation pressure
listed on placard located on driver’s door
B-pillar for normal driving conditions.
Provides best handling, tread life and
riding comfort.

389 Index
Bead 271
Block heater (Canada only) 276
Blocking rear door window operation 78
B-pillar 366
Brake assist system (BAS) 381
Brake fluid 237, 376
Brake lamp bulbs, left and right 334
Brake lamp, high mounted 334
Brake pads
Message in display 303
Brakes 217
Warning lamp 290, 291
Break-in period 214
Brush guard* 329
Lowering 330
Raising and securing 330
Bulbs, replacing
Additional turn signals 334
Backup lamps 334, 342
Brake lamps 334, 341
Front fog lamps 334, 338
Front lamps 333, 334
Front turn signal lamps 334, 339
High and low beam 336High beam lamps 334
High mounted brake lamp 334
License plate lamps 334, 342
Low beam lamps 334
Parking lamps 334, 336
Rear fog lamp 334, 342
Rear turn signal lamps 334
Side marker lamps 334, 340
Standing lamps 334, 336
Tail lamp unit 334, 341C
CAC (Customer Assistance Center) 381
Calling up
Maintenance service indicator 278
Range (distance to empty) 145
CAN system 381
Capacities
Fuels, coolants, lubricants, etc. 374
Cargo area see Cargo compartment
Cargo compartment
Tailgate 97, 98
Tie-down rings 189
Cargo compartment cover 182
Installing 183
Removing 183
Cargo tie-down rings 189
Catalytic converter 232
CD changer 322
CD player
Operating 130
Center console 28
AIRBAG OFF indicator lamp 295
Lower part 29
Upper part 28

398 IndexL
Labels, identification 366
Lamp bulbs, exterior 333
Lamps, exterior
Front 334
Light sensor 314
Messages in display 312, 314
Rear 334
Replacing bulbs for rear 341
Lamps, indicator and warning
ABS 288, 289
Battery (SmartKey) 94
Brakes 290, 291
CHECK ENGINE 292
Engine diagnostics 292
ESP 293
Fuel reserve 294
Instrument cluster 294
Maintenance service indicator 277
Seat belts 294
SRS 63
Turn signals 25
Language
Multifunction display 136
Setting 136LATCH child seat anchors 77
Layout of poly-V-belt drive 367
Leather upholstery
Cleaning 285
License plate lamps
Messages in display 314
Replacing bulbs 334, 342
Light alloy wheels
Cleaning 284
Technical data 370, 371
Light sensor 314
Lighter see Cigarette lighter
Lighting 110
Automatic headlamp mode 111
Combination switch 114
Daytime running lamp mode 112
Exterior lamp switch 110
Front fog lamps 113
High beam flasher 114
High beams 114
Instrument cluster illumination 120
Interior 116
Locator lighting 113
Low beams 110
Manual headlamp mode 111Night security illumination 113
Parking lamps 110
Rear fog lamp 114
Settings (control system) 137
Limiting the gear range 150
Limp Home Mode 153
Line of fall 383
Loading 182
Cargo compartment cover 182
Cargo tie-down rings 189
Instructions 187
Partition net* 185
Roof rack 182
Split rear bench seat 183
Loading terminology 271
Loading the vehicle 251
Locator lighting 113
Setting 138
Lock button 383
Locking 57, 92
Fuel filler flap 235
Global, SmartKey 94
Vehicle in an emergency 326
Loss of keys 96