Page 492 of 514
491 Technical terms
Restraint systems
Seat belts, child restraints, lower an-
chors and tethers for children (LATCH).
As independent systems, their protec-
tive functions complement one anoth-
er.
Rim
(
page 356)
Roll bars
Occupant protection system which
consists of tubular steel, integrated in
the rear head restraints. The roll bars
are lowered into the car body during
normal driving conditions and raised
automatically in an accident or in a crit-
ical driving situation.RON
(R
esearch O
ctane N
umber)
The Research Octane Number for gaso-
line as determined by a standardized
method. It is an indication of a gaso-
line's ability to resist undesired detona-
tion (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.
RFI*
(R
un F
lat I
ndicator)
The Run Flat Indicator monitors the set
tire inflation pressures by evaluating
each wheel’s rotational speed. If a
wheel’s rotational speed changes due
to falling tire inflation pressure, a corre-
sponding warning message appears in
the multifunction display.Shift lock
When the vehicle is parked, this lock
prevents the gear selector lever from
being inadvertently moved out of
positionP without SmartKey turned
and brake pedal depressed.
Sidewall
(
page 356)
Soft top
Soft top roof that can be opened by
pulling and closed by pressing a switch
and stored in the soft top compartment
in the trunk area.
SRS
(Supplemental R
estraint S
ystem)
Air bags, air bag control unit (with
crash sensor), emergency tensioning
device. Though independent systems,
they are closely interfaced to provide
effective occupant protection.
Steering wheel gearshift control
(CLK 500*, CLK 55 AMG)
You can change the gears yourself with
the steering wheel gearshift buttons.
Page 503 of 514
502 Index
Fuel reserve 25, 379
High beam headlamp 25
Instrument cluster 374–380
Low beam headlamp 25
Maintenance service 361
Parktronic system*
warning indicators 271
Roll bar 379
Seat belt telltale 25, 71, 379
Seat belts 379
SRS 25, 63, 380
Turn signals 25
Language, Setting 151
LATCH-type child seat anchors see
Children in the vehicle
License plate lamps
Messages in display 405
Replacing bulbs 439, 443
Light alloy wheels, cleaning 370
Light sensor see Lamp sensor
Lighter see Cigarette lighter
Lighting, Exterior and interior 127
Limp Home Mode 180
Loading
Ski sack* (Canada only) 273
Loading see Vehicle loadingLoading the vehicle 333
Locator lighting 129, 157
Lock buttons
Door handle (KEYLESS-GO*) 60, 104
Trunk lid (KEYLESS-GO*) 106
Lock knob 489
Locking 60
Loss of keys 100, 106
Loss of Service and
Warranty Information Booklet 467
Low beam headlamps
Indicator lamp 25
Messages in display 406
Replacing bulbs (Bi-Xenon*) 438
Replacing bulbs (Halogen) 438, 440
Switching on 52
Lubricants 479
Luggage cover 262
Folding back 273
M
Maintenance 12, 361
Calling up service indicator 362
Clearing service indicator 362
FSS (Canada vehicles) 361
Maintenance System
(U.S. vehicles) 361Resetting service indicator 363
Service indicator 361
Service term exceeded 362
Maintenance system
(U.S. vehicles) 361, 489
Manual headlamp mode see Headlamps
Manual shift program 178
MAXCOOL maximum cooling 202
Maximum load rating, Tires 356
Maximum loaded vehicle weight,
Tire inflation pressure 356
Maximum tire inflation pressure 356
Mechanical key 419
Memory function see Seats, Power
Menus see Control system menus
Microphone, Hands-free 29
Minispare wheel see Spare wheel
Mirrors
Adjusting 43
Antiglare position 181
Auto-dimming 182
Exterior rear view mirrors 43
Parking position 126, 161, 183
Interior rear view mirror 43
MOE see MOExtended
MOE tires see MOExtended system*
Page 509 of 514
508 IndexStanding lamps 127
Replacing bulbs 438, 439, 441, 442
Standing water, Driving through 314
Starter switch 23, 34
Positions 34
Starting difficulties, Engine 50
Starting, Engine 48
Status line, Selecting display 152
Steering column 41
Steering gear oil
Message in display 410
Steering wheel 41
Buttons 26
Cleaning 371
Gearshift buttons 175, 176
Gearshift control 175, 176
One-touch gearshifting 174
Stolen Vehicle Recovery services 296
Storage compartments 278
Armrest, Front 281, 282
Armrest, Rear 283
Cup holder 283
Glove box 278
Parcel net 280
Storage bags 280
Storage box 279Storing
Tires 332
Submenus see
Control system submenus 141
Sun visors 184
Supplemental Restraint System see SRS
Switching off
Parktronic system* 272
Switching on
Parktronic system* 272
Symbols used in
this operator’s manual 15
T
Tachometer 25, 138
Overspeed range 138
Tail lamps
Cleaning lenses 369
Messages in display 407
Replacing bulbs 439, 443
Tar stains 365
Technical data
Air conditioning refrigerant 481
Brake fluid 481
Capacities fuels,
coolants, lubricants etc. 479, 480
Coolant 480, 484Electrical system 477
Engine 470
Engine oil 481
Engine oil additives 481
Fuel capacity 480
Fuel requirements 482
Gasoline additives 483
Lubricants 479
Premium unleaded gasoline 482
Rims and tires 471
Tires, Mixed size 475
Tires, Same size 473
Tires, Spare wheel sizes 476
Vehicle dimensions 478
Weights 478
Windshield washer and headlamp
cleaning* system 480, 486
Tele Aid 29, 289, 492
Call priority 294
Emergency calls 290
Hands-free microphone 29
Information 293
Initiating an
emergency call manually 291
Messages in display 409
Remote door unlock 295