487 Technical terms
ABS
(A
ntilock B
rake S
ystem)
Prevents the wheels from locking up
during braking so that the vehicle can
continue to be steered.
Accessory weight
(
page 355)
Air pressure
(page 355)
Alignment bolt
Metal pin with thread. The centering
pin is an aid used when changing a tire
to align the wheel with the wheel hub.
Aspect ratio
(page 355)
Bar
(page 355)
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 355)
Bi-Xenon headlamps*
Headlamps which use an electric arc as
the light source and produce a more in-
tense light than filament headlamps.
Bi-Xenon headlamps produce low
beam and high beam.
CAC
(Customer A
ssistance C
enter)
Mercedes-Benz customer service cen-
ter, which can help you with any ques-
tions about your vehicle and provide
assistance in the event of a break-
down.
CAN system
(C
ontroller A
rea N
etwork)
Data bus network serving to control ve-
hicle 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 355)
COMAND
(Cockpit M
anagement and D
ata Sys-
tem)
Information and operating center for
vehicle sound and communications
systems, including the radio and the
navigation system, as well as other op-
tional equipment (CD changer*, tele-
phone, etc.).
Control system
The control system is used to call up
vehicle information and to change
component settings. Information and
messages appear in the multifunction
display. The driver uses the buttons on
the multifunction steering wheel to
navigate through the system and to ad-
just settings.
488 Technical termsCruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.
Curb weight
(
page 355)
DOT
(Department O
f Transportation)
(
page 355)
Engine number
The number set by the manufacturer
and placed on the cylinder block to
uniquely identify each engine pro-
duced.
Engine oil viscosity
Measurement for the inner friction (vis-
cosity) of the oil at different tempera-
tures. The higher the temperature an
oil can tolerate without becoming thin,
or the lower the temperature it can tol-
erate without becoming viscous, the
better the viscosity.ESP
®(Electronic S
tability Pr
ogram)
Improves vehicle handling and direc-
tional stability.
ETD
(E
mergency T
ensioning D
evice)
Device which deploys in certain frontal
and rear collisions exceeding the sys-
tem's threshold to tighten the seat
belts.
->SRS
FSS (Canada vehicles)
(F
lexible S
ervice S
ystem)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. FSS evaluates en-
gine temperature, oil level, vehicle
speed, engine speed, distance driven
and the time elapsed since your last
maintenance service, and calls for the
next maintenance service accordingly.GAWR
(G
ross A
xle W
eight R
ating)
(
page 355)
Gear range
Number of gears which are available to
the automatic transmission for shifting.
The automatic gear shifting process
can be adapted to specific operating
conditions using the gear selector le-
ver.
GPS
(Global P
ositioning S
ystem)
Satellite-based system for relaying
geographic location information to and
from vehicles equipped with special re-
ceivers. Employs CD digital maps for
navigation.
GVW
(G
ross V
ehicle W
eight)
(
page 355)
GVWR
(Gross V
ehicle W
eight R
ating)
(
page 356)
489 Technical terms
Head-thorax air bag
Installed in the driver and the front pas-
senger seat, these air bags protect oc-
cupants during side impact collisions
exceeding a preset threshold. Unlike
normal side impact air bags,
head-thorax air bags are also designed
to provide protection for the head area.
Instrument cluster
The displays and indicator/warning
lamps in the driver’s field of vision, in-
cluding the tachometer, speedometer,
coolant temperature indicator and fuel
display.
KEYLESS-GO*
System for entering and operating the
vehicle without the use of a SmartKey.
Kickdown
Depressing the accelerator past the
point of resistance shifts the transmis-
sion down to the lowest possible gear.
This very quickly accelerates the vehi-
cle and should not be used for normal
acceleration needs.Kilopascal (kPa)
(
page 356)
Locking knob
Knob on the door which indicates
whether the door is locked or un-
locked. Pushing the locking knob down
on the driver’s or passenger door from
inside will lock that door.
Maintenance System (U.S. vehicles)
Maintenance service indicator in the
multifunction display that informs the
driver when the next vehicle mainte-
nance service is due. The Maintenance
System in your vehicle tracks distance
driven and the time elapsed since your
last maintenance service, and calls for
the next maintenance service
accordingly.
Maximum load rating
(page 356)
Maximum loaded vehicle weight
(page 356)Maximum tire inflation pressure
(
page 356)
Memory function*
Used to store three individual seat,
steering wheel and exterior mirror
positions.
Menu
The control system displays are ar-
ranged in menus. Each menu contains
a number of commands for particular
systems.
MON
(Motor O
ctane N
umber)
The Motor Octane Number for gasoline
as determined by a standardized meth-
od. It is an indication of a gasoline's
ability to resist undesired detonation
(knocking). The average of both the
MON (Motor Octane Number) and
->RON (Research Octane Number) is
posted at the pump, also known as
ANTI-KNOCK INDEX.
490 Technical termsMOE
(M
ercedes-Benz O
riginal E
xtended
equipment tires)
Tires with limited run-flat characteris-
tics. The MOExtended system allows
you to continue driving your vehicle
even if there is a total loss of pressure
in one or more tires.
Multifunction display
Display field in the speedometer used
to present information provided by the
control system.
Multifunction steering wheel
Steering wheel with buttons for operat-
ing the control system.
Normal occupant weight
(
page 356)
OCS
(Occupant C
lassification S
ystem)
The system automatically turns the
front passenger front air bag on or off
based on the classified occupant size
category determined by weight sensor
readings from the seat.Overspeed range
Engine speeds within the red marking
on the tachometer dial. Avoid this en-
gine speed range, as it may result in se-
rious engine damage that is not
covered by the Mercedes-Benz Limited
Warranty.
Poly-V-belt drive
Drives engine-components (alternator,
AC compressor, etc.) from the engine.
Power train
Collective term designating all
components used to generate and
transmit motive power to the drive
axles, including
engine
clutch/torque converter
transmission
transfer case
drive shaft
differential
axle shafts/axlesProduction options weight
(
page 356)
Program mode selector switch
Used to switch the automatic transmis-
sion between regular operationS and
comfort operationC.
CLK 55 AMG with steering wheel gear-
shift control and manual shift program:
In addition toS andC (for regularS or
comfortC operation, see above) you
can use theM for manual shift
program.
PSI
(Pounds per S
quare I
nch)
(
page 356)
Recommended tire inflation pressure
(page 356)
REST*
(Residual engine heat utilization)
Feature that uses the engine heat
stored in the coolant to heat the vehi-
cle interior for a short time after the en-
gine has been turned off.
492 Technical termsTele Aid System
(T
elematic A
larm I
dentification on D
e-
mand)
The Tele Aid system consists of three
types of response: automatic and man-
ual emergency, roadside assistance
and information. Tele Aid is initially ac-
tivated by completing a subscriber
agreement and placing an acquain-
tance call.
The Tele Aid system is operational pro-
vided that the vehicle’s battery is
charged, properly connected, not dam-
aged and cellular and GPS coverage is
available.
Telematics*
A combination of the terms “telecom-
munications” and “informatics”.
Tightening torque
Force times lever arm (e.g. a lug
wrench) with which threaded fasteners
such as wheel bolts are tightened.TIN
(T
ire I
dentification N
umber)
(
page 357)
Tire load rating
(page 357)
Tire ply composition and material used
(page 357)
Tire speed rating
(page 357)
Traction
(page 357)
Tread
(page 357)
Treadwear indicators
(page 357)
Uniform Tire Quality Grading Standards
(page 357)Vehicle capacity weight
(
page 357)
Vehicle maximum load on the tire
(page 357)
VIN
(Vehicle I
dentification N
umber)
The number set by the manufacturer
and placed on the body to uniquely
identify each vehicle produced.
Wind screen
Screen for deflecting wind from the ve-
hicle interior when the soft top is
lowered.
493 Index
A
ABS 25, 87, 487
Malfunction indicator lamp 374
Messages in display 385
Accelerator position,
automatic transmission 170
Accessory weight 355
Accident 56
Active head restraints 73
Resetting 434
Air bags 63
Children 64
Front passenger
front air bag off indicator lamp 81
Front, Driver 67
Front, Passenger 67
Head-thorax 68
Occupant Classification System
(OCS) 78
Rear side-impact 68
Safety guidlines 66
Air conditioning refrigerant 481
Air conditioning system see
Climate control systemAir conditioning, Cooling 194, 206
Air distribution 190, 200
Air pressure see Tires, Inflation pressure
Air recirculation mode 192, 203
Air vents 195, 208
Air volume 190, 201
Alarm system see Anti-theft systems
Alignment bolt
(vehicle tool kit) 413, 449, 487
Anticorrosion/antifreeze 484, 485
Antiglare, Rear view mirror 181, 182
Antilock Brake System see ABS
Anti-theft systems 92
Anti-theft alarm system 92
Immobilizer 92
Tow-away alarm 94
Aquaplaning see Hydroplaning
Armrest 281, 282, 283
Storage box 279
Ashtrays 284
Aspect ratio 355
ATF 326
AUDIO menu 145Audio system 209
Button and soft key operation 212
CD changer* 229
CD operation 227
Emergency calls "911" 247
Operating and display elements 210
Operating audio system 209
Operating safety 209
Radio operation 217
Sound system* 209, 214
Switching on/off 212
Telephone* operation 209, 233
Auto-dimming, Rear view mirror 182
Automatic central locking,
Control system 117, 159
Automatic climate control see
Climate control system
Automatic headlamp mode see Headlamps
Automatic lighting control,
Interior lighting 134
Automatic locking when driving 117
Automatic shift program 172
496 IndexControl system submenus 141, 143, 150
Convenience 160
Instrument cluster 151
Lighting 156
Time/Date 153
Vehicle 159
Controller Area Network see CAN system
Coolant 327, 484
Adding 327
Anticorrosion/antifreeze
mixing ratio and quantity 484
Capacities 479
Checking coolant level 327
Messages in display 397–399
Temperature 317
Temperature indicator 137
Warning lamp 377
Coolants 484
Corner-illuminating front fog lamps* 132
Replacing bulbs 438, 439
Cruise control 265, 488
Canceling 267
Cruise control lever 265
Current speed 266
Fine adjustment 268
Higher speed 268Last stored speed
(“Resume” function) 268
Slower speed 268
Cup holder 283
Curb weight 355
Customer Assistance Center see CAC
D
Date 153
Date, Setting 154, 155
Daytime running lamp mode 129
Setting 156
Deep water see Standing water
Defogging
Windshield 192, 202
Defrosting, Front 191, 201
Defrosting, Rear 185
Delayed shut-off
Exterior lamps 158
Interior lighting 159
Department of Transportation see DOT
Difficulties
With starting 50
Digital speedometer 144
Dimensions, Vehicle 478
Direction of rotation (tires) 333Displays
Digital speedometer 144
Maintenance service indicator 361
Messages in display 383
Multifunction display 140
Outside temperature 138
Symbol messages 395–412
Text messages 385–393
Vehicle status message memory 147
Vehicle status messages see
Multifunction display messages
Distance to empty (Range),
Trip computer 161
Door
Control panel 30
Entry lamps 135
Handle 30, 107
Locking/unlocking,
KEYLESS-GO* 33, 60, 103
Locking/unlocking,
SmartKey 32, 60, 98
Messages in display 400
Opening from inside/outside 107
Remote door unlock (Tele Aid) 295
Unlocking, Mechanical key 419
DOT 355
499 Index
Fuel consumption statistics
After start 161
Resetting 162
Since last reset 162
Fuel filler flap 318
Locking/unlocking 318
Opening in an emergency 421
Fuel reserve warning lamp 25
Fuel tank
Capacity 480
Filler flap 318
Message in display 403
Fuel, Premium
unleaded gasoline 319, 482
Fuels, coolants, lubricants etc.
Capacities 479
Fuses 462
Aids for changing fuses 462
Fuse box (main)
in passenger compartment 463
Fuse box in engine compartment 463
Fuse box in trunk 464
Fuse chart 462
Fuse extractor 462
Replacing 462
Spare fuses 462G
Garage door opener 29, 296
Gasoline see Fuel
GAWR 355
Gear range 171, 488
Automatic transmission 171
Limiting 171
Shifting into optimal 173
Gear selector lever 28, 48, 166
Cleaning 371
Lock 49
Message in display 393
One-touch gearshifting 173
Position 166, 168
Position indicator 25, 140, 167
Unlocking in an emergency 422
Global locking/unlocking see
Key, SmartKey or KEYLESS-GO* 98
Global Positioning System see GPS
Glove box 23, 278
Gloves 413
Good visibility 181
GPS 488
Gross Axle Weight Rating see GAWR
Gross Vehicle Weight Rating see GVWR
Gross Vehicle Weight see GVWGVW 355
GVWR 356
H
Halogen headlamp see Headlamps
Hands-free microphone 29
Hard plastic trim items, cleaning 371
Hazard warning flasher 133
Head restraints 38, 119
Active head restraints 73
Front seat 119
Power seat, Adjusting 38
Rear seat 119
Rear seat, Lowering 120
Rear seat, Raising 120
Headlamp
cleaning system* 181, 329, 486
Headlamp delayed shut-off see
Delayed shut-off, Exterior lamps
Headlamps
Automatic headlamp mode 128
Bi-Xenon* 441, 487
Cleaning lenses 369
Daytime running lamp mode 129
Halogen 440
High beam see High beam flasher
High beam see High beam headlamps