Page 371 of 481

370 Practical hintsWhat to do if …Text messagesDisplay message
Possible cause/consequence
Possible solution
ABS
malfunction
Visit workshop
The ABS has detected a malfunction
and has switched off. The ESP
® and
the BAS are also deactivated.
The brake system is still functioning
normally but without the ABS avail-
able.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases
the risk of an accident.
Display malfunction
Visit workshop
The ABS or the ABS display is mal-
functioning.
Continue driving with added caution.
Wheels may lock during hard braking,
reducing steering capability.
Have the system checked at an authorized
Mercedes-Benz Center as soon as possible.
Failure to follow these instructions increases
the risk of an accident.
Cruise
control
Cruise control
Drive to workshop
Cruise control is malfunctioning.
Have cruise control checked by an
authorized Mercedes-Benz Center.
Page 374 of 481

373 Practical hints
What to do if …
Display messages
Possible cause/consequence
Possible solution
Run Flat Indicator
inactive
The Run Flat Indicator* is malfunc-
tioning.
Have the Run Flat Indicator* checked by an
authorized Mercedes-Benz Center.
Tire pressure
Check tires
The pressure is too low in one or
more tires.
Carefully bring the vehicle to a halt, avoiding
abrupt steering and braking maneuvers. Observe
the traffic situation around you.
Check and adjust the tire inflation pressure as
required (
page 329).
If necessary, change the wheel (
page 408).
Reactivate the Run Flat Indicator* after adjusting
the tire inflation pressure values (
page 304).
Check tires
Then reactivate
Run Flat Indicator
There was a warning message about
a loss in tire inflation pressure and
the Run Flat Indicator* has not been
reactivated yet.
Make sure that the correct tire inflation pressure
is set for each tire.
Then reactivate the Run Flat Indicator*.
Run Flat Indicator
unavailable
The Run Flat Indicator* has been
switched off due to an error.
Have the Run Flat Indicator* checked by an
authorized Mercedes-Benz 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.
Page 459 of 481

458 Technical termsCAN 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 344)
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*
(Co
ckpit Man
agement and
D
ata System)
Information and operating center for
vehicle sound and communications
systems, including the radio,
CD changer and navigation system, as
well as other optional equipment (e.g.
telephone).
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.
Cruise control
Driving convenience system for auto-
matically maintaining the vehicle speed
set by the driver.Curb weight
(
page 344)
DOT
(Department o
f Transportation)
(
page 344)
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.
Page 461 of 481

460 Technical termsLine of fall
The direct line an object moves down-
hill when influenced by the force of
gravity alone.
Locking knob
Button on the door which indicates
whether the door is locked or un-
locked. Pushing the locking knob down
on an individual door from inside locks
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 accord-
ingly.Maximum loaded vehicle weight
(
page 345)
Maximum load rating
(page 345)
Maximum tire inflation pressure
(page 345)
Memory function*
Used to store three individual seat,
steering wheel and mirror positions.
MON
(Motor O
ctane N
umber)
The Motor Octane Number for gasoline
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.Multifunction display
Two display fields in the instrument
cluster 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 345)
Overspeed range
Engine speeds within the red marking
of the tachometer dial. Avoid this
engine speed range, as it may result in
serious 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.
Page 462 of 481

461 Technical terms
Power train
Collective term designating all compo-
nents used to generate and transmit
motive power to the drive axles, includ-
ing
Engine
Clutch/torque converter
Transmission
Transfer case
Drive shaft
Differential
Axle shafts/axles
Production options weight
(
page 345)Program mode selector switch*
Used to switch the automatic transmis-
sion between standard operation (S)
and comfort operation (C).
Vehicles with steering wheel gearshift
control and manual shift program: in
addition toS andC (for regularS
or comfortC operation, see above),
you can useM for manual shift pro-
gram.
PSI
(P
ounds per s
quare i
nch)
(
page 345)
Recommended tire inflation pressure
(page 345)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.
Restraint systems
Seat belts, belt tensioners, air bags
and child restraint systems. As inde-
pendent systems, their protective func-
tions complement one another.
Rim
(
page 345)
Retractable hardtop
Hardtop that can be opened and closed
at the push of a button and stored in
the trunk.
Page 468 of 481

467 Index
Control system 123, 458
AUDIO menu 129
Convenience* submenu 147
Coolant temperature 128
Instrument cluster submenu 137
Lighting submenu 143
Maintenance service indicator 350
Menus 124
Messages in display 368
Multifunction display 123
Multifunction steering wheel 124
NAV* menu 132
Overview (Menus) 126
Overview (Settings submenus) 136
Resetting 134
Settings menu 134
Standard display 128
TEL* menu 151
Time/date submenu 139
Trip computer menu 149
Vehicle status message memory
menu 132
Vehicle submenu 147
Controller Area Network see CAN systemConvenience closing*
Power windows 249
Retractable hardtop 257
Coolant 313
Adding water 306
Anticorrosion/antifreeze 454
Fuels, coolants, lubricants, etc. 453
Technical data 449
Temperature 303
Temperature, checking (Control
system) 128
Corner-illuminating front fog lamps*
(Lighting) 115
Cruise control 260, 458
Display message 370
Cup holder 268
Curb weight 344
Customer Assistance Center see CACD
Date (Control system) 141, 142
Daytime running lamp mode 112
Control system 143
Deep water see Standing water
Defrosting
Rear window 177
Windshield (Automatic climate
control*) 197
Windshield (Climate control) 184
Department of Transportation see DOT
Difficulties with starting 52
Direction of rotation (Tires) 320
Display text see Messages in display
Doors
Control panel, overview 31
Entry lamps 119
Locking/unlocking from outside 95
Opening from inside 97
Unlocking with Tele Aid 280
DOT 344
Drink holder see Cup holder
Drinking and driving 293
Driver’s air bag see Air bags
Page 471 of 481

470 IndexH
Hard plastic trim items, cleaning 359
Hazard warning flasher 117
Head restraint height (Seats) 41
Headlamps
Bi-Xenon* 401, 457
Cleaning system* 173, 315, 456
Night security illumination (Control
system) 145
Switching off 60
Switching on 55
Headliner, cleaning 360
Head-thorax air bag 71, 459
Heating
Seats* 104
Steering wheel* 288
High beam
Flasher 115
Headlamps 55, 115
Headlamps, bulbs 401
High mounted brake lamp 401
High-performance brake system
(SLK 55 AMG) 295
Hood 307
Horn 23
Hydroplaning 297I
Identification labels see Labels
Ignition (Position in starter switch) 36
Immobilizer see Anti-theft systems
Infant and child restraint systems 75
Instrument cluster 25, 120, 459
Clock 122
Lamps, indicator and warning 362
Overview 24
Instruments and controls see Cockpit
Interior rear view mirror see Mirrors
Intermittent/interval wiping see Wind-
shield wipers
J
Jack (Vehicle tool kit) 388
Lifting vehicle 413
Lowering vehicle 419
Jump starting 424K
Key 209
Kickdown (Automatic
transmission*) 162, 459
Kilopascal 345
Kneebag see Air bags
Page 473 of 481

472 IndexM
Main dimensions 447
Maintenance service indicator (Control
system) 350
Maintenance System (U.S. vehicles) 460
Service indicator, calling up 351
Manual seat see Seats
Manual shift program SLK 55 AMG 169
Manual transmission 155
Driving 53
Gearshift pattern 51
Starting with SmartKey 51
Maximum inflation pressure 345
Maximum load rating 345
Maximum loaded vehicle weight 345
Mechanical key see SmartKey
Memory function* 107, 460
Menus
AUDIO 129
Convenience* submenu 147
Instrument cluster submenu 137
Lighting submenu 143
NAV* 132
Overview (Control system) 126, 127,
136Settings 134
Settings submenus 135
Standard display 128
TEL* 151
Time/Date submenu 139
Trip computer 149
Vehicle status message memory 132
Vehicle submenu 147
Messages in display 368
Cruise control 370
ESP
®
371
Maintenance service indicator 350
SRS 372
Symbols 374
Transmission 372
Vehicle status message memory 132
Mirror lamp* see Sun visors
Mirrors 173
Additional turn signals 401
Adjusting 45
Antiglare position 173
Auto-dimming* 174
Exterior rear view mirrors 45
Interior rear view mirror 45
Parking position* 108, 148, 175MOExtended system* 333
MON 304, 460
Motor Octane Number see MON
MP3 220
Multifunction display 123, 460
Engine oil messages 309
Messages 132
Messages with symbols 374
Messages with text 368
Operation see Control system
Multifunction steering wheel 26, 124,
460
Heating* 288