
Direction of rotation (tires)
 ..............209
Displays  
Digital speedometer  ........................97
Maintenance service indicator  .......225
Messages in the multifunction
display
 ........................................... 236
Multifunction display  .......................95
Outside temperature  ...............97, 104
Symbol messages .......................... 243
Text messages ............................... 237
Trip computer ................................ 109
Vehicle status message memory  ...101
Vehicle system settings ................. 102
Door control panel  .............................. 30
Doors  
Locking/unlocking (SmartKey) ........ 56
Messages in the multifunction
display  ........................................... 245
Opening from inside ......................... 58
Remote door unlock (Tele Aid) ....... 182
Unlocking (Mechanical key) ........... 264
DOT (Department of
Transportation)  .................................. 217
Drinking and driving  .........................221
Driving  
Abroad ........................................... 224
Hydroplaning  ................................. 224
Instructions  ............................. 80, 221
In winter  ........................................ 220
Problems  ......................................... 82
Safety systems ................................ 47
Systems ......................................... 159
Through standing water  .................224
Driving and parking 
Safety notes ..................................... 79
Driving off  .................................... 81, 224
Driving safety systems ....................... 47
ABS .................................................. 48
BAS .................................................. 49
ESP ®
 ................................................ 49
ETS  .................................................. 50
Driving systems  
Cruise control ................................ 159
Driving tips, automatic
transmission ........................................ 87 E
Easy-entry/exit feature .............. 67, 108
Electrical system  
Improper work on or
modifications ................................... 20
Power outlet  .................................. 177
Electrical system (Technical data)
see Vehicle specification 
                        
Electronic Stability Program
see ESP ®
                                                  
Emergency, in case of  
First aid kit ..................................... 234
Flat tire .......................................... 273
Hazard warning flasher  ....................74
Roadside Assistance ................ 19, 180
Towing the vehicle  .........................285
Emergency calls  
Tele Aid  .......................................... 179
Telephone  ...................................... 152
Emergency operations  
Remote door unlock (Tele Aid) ....... 182
Retractable hardtop  .......................266
Trunk lid, emergency release  ...........60
Emergency Tensioning Device
see ETD                                                    
Emission control  ............................... 225
Information label ............................ 293
System warranties ........................... 18
Engine  
Break-in recommendations  ............190
Cleaning ......................................... 228
Compartment  ................................ 192
Malfunction indicator
lamp  ........................................ 26, 262
Messages in the multifunction
display  ........................................... 247
Number .......................................... 293
Starting ............................................ 80
Turning off ....................................... 84
Engine (Technical data)
see Vehicle specification                         
Engine coolant
see Coolant                                              
Engine oil  
Adding ........................................... 195
Additives ........................................ 303
Checking level  ............................... 193 Index
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Unlocking/locking manually ..........
264
Valet locking .................................... 61
Key, SmartKey 
Battery check lamp .......................... 57
Checking batteries ........................... 57
Factory setting
 ................................. 57
Global locking (SmartKey) ................ 57
Global unlocking
(SmartKey) ....................................... 57
Locking/unlocking ........................... 56
Loss of ............................................. 58
Messages in the multifunction
display  ........................................... 246
Remote control  ................................ 56
Replacing ......................................... 58
Replacing batteries ........................ 266
Restoring to factory setting ............. 57
Selective setting .............................. 57
Starter switch positions ................... 61
Kickdown  ............................................. 87
Kickdown (manual shift program) ..... 92
Kilopascal (air pressure unit)  ...........218
Knee bags  ............................................ 36L
Labels  
Certification ................................... 292
Emission control information
 ......... 293
Tire and Loading Information
placard ........................................... 205
Tire inflation pressure  ....................200
Lamps, exterior  
Exterior lamp switch ........................ 71
Front .............................................. 269
Messages in the multifunction
display  ........................................... 252
Switching on/off .............................. 71
Lamps, indicator and warning  
ABS .......................................... 26, 257
Brakes ..................................... 27, 257
Engine malfunction .................. 26, 262
ESP ®
 ........................................ 26, 260
Fog lamps  ........................................ 73
Fuel tank reserve ..................... 26, 261
High-beam headlamps  ...............26, 74
Instrument cluster  ...................26, 256 Low tire pressure/TPMS
malfunction telltale ..................
26, 262
Passenger front air bag
off ...................................... 29, 37, 263
Seat belt telltale  ................26, 42, 259
SRS ....................................
26, 32, 260
Turn signals  ..................................... 26
Language, selecting  ..........................104
License plate lamps  
Messages in the multifunction
display  ........................................... 253
Replacing bulbs ............................. 269
Light alloy wheels, cleaning  .............230
Lighter see Cigarette lighter                                
Lighting  ................................................ 70
Daytime running lamp mode  ............72
Exterior ............................................ 71
Interior  ............................................. 75
Limp-home mode ................................. 92
Load index (tires)  ......................213, 218
Locator lighting  ................................. 106
Locking the vehicle  
Manually  ........................................ 265
SmartKey ......................................... 56
Loss of  
Key  .................................................. 58
Service and Warranty Information
booklet .......................................... 292
Low-beam headlamps ......................... 71
Exterior lamp switch ........................ 71
Switching on  .................................... 71
Lubricants .......................................... 300
Luggage cover  ................................... 173
Lumbar support  ................................... 64 M
Maintenance  ........................................ 19
Maintenance System  Service indicator display
 ................226
Service indicator message ............. 225
Service term exceeded  ..................226
Manual headlamp mode (Low-
beam headlamps)  ................................ 71
Manual shift program  .........................90
Manual transmission .......................... 84
Gearshift lever  ................................. 8410
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Occupant safety 
Air bags ........................................... 33
Children and air bags
 .......................33
Children in the vehicle  .....................45
Fastening the seat belts ................... 42
Infant and child restraint systems .... 45
Introduction ..................................... 32
OCS (Occupant Classification
System) ........................................... 37
Passenger front air bag off
indicator lamp .......................... 37, 263
Seat belts .................................. 34, 40
OCS (Occupant Classification
System) ................................................ 37
Self-test ........................................... 39
Odometer ............................................. 95
Oil, oil level see Engine oil                                           
On-board computer
see Control system                                  
One-touch gearshifting  .......................89
Operating safety  .................................. 20
Ornamental moldings, cleaning  .......229
Outside temperature see Displays                                             
Overhead control panel  ......................30 P
Paintwork, cleaning  ..........................228
Paintwork code  ................................. 293
Panic alarm .......................................... 47
Parcel nets  ......................................... 174
Parking ................................................. 83
Parking and standing lamp  
Replacing bulbs
 ............................. 269
Parking brake ...................................... 83
Messages in the multifunction
display  ........................................... 244
Parking position  
Exterior rear view mirrors ................ 69
Transmission position ...................... 87
Parts service ...................................... 292
PASS AIR BAG OFF indicator lamp see Passenger front air bag off
indicator lamp                                           Passenger front air bag ......................
35
Messages in the multifunction
display
 ........................................... 239
Passenger front air bag off
indicator lamp  ....................... 29, 37, 263
Passenger safety see Occupant safety                                
Pedals ................................................. 221
Phone see Telephone                                          
Plastic parts, cleaning ...................... 230
Power assistance  .............................. 222
Power outlet  ...................................... 177
Power seats see Seats                                                 
Power washer  .................................... 228
Power windows  ................................... 78
Cleaning ......................................... 229
Door windows .................................. 78
Operation ......................................... 78
Rear side windows ........................... 79
Synchronizing .................................. 79
Practical hints ................................... 234
Problems  While driving .................................... 82
With vehicle ..................................... 21
With wipers  ...................................... 77
Product information  ............................18
Production options weight  ...............218
Program mode selector switch  
Automatic shift program  ..................88
Manual shift program ....................... 90
Proximity key
see Key, SmartKey                                   
PSI (air pressure unit) ....................... 218 R
RACETIMER  .......................................... 98
Radio .................................................. 121
Satellite radio
 ................................ 125
Selecting stations .......................... 100
Radio transmitters  ............................224
Rain sensor see Intermittent wiping                            
Rear axle oil  ....................................... 301
Rear fog lamp see Fog lamps                                           12
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Rear lamps
see Tail lamps                                           
Rear window defroster ..................... 170
Recommended tire inflation
pressure ..................................... 198, 218
Refrigerant, air conditioning ............ 303
Refueling  ............................................ 190
Regular checks  .................................. 191
Reminder, Seat belt see Seat belts, Telltale                             
Remote control
see Key, SmartKey                                   
Remote door unlock (Tele Aid)  .........182
Replacing  
Key  .................................................. 58
Replacing bulbs  ................................. 267
Reporting safety defects .................... 21
Research Octane Number see RON                                                   
Reserve fuel  
Messages in the multifunction
display  ........................................... 251
Warning lamp ........................... 26, 261
Reset button .................................. 27, 92
Restraint systems see Occupant safety                                
Retractable hardtop  ..........................170
Locking  .......................................... 172
Luggage cover  ............................... 173
Messages in the multifunction
display  ........................................... 246
Operating manually ........................ 266
Wind screen ................................... 173
Rims ........................................... 218, 297
Roadside Assistance  ...................19, 180
RON (Research Octane Number) ..... 303
Roof see Retractable hardtop                          
Rubber parts, cleaning ...................... 230 S
Safety  Driving safety systems ..................... 47
Occupant safety ...............................
32
Reporting defects ............................ 21
Safety belts
see Seat belts                                           Satellite radio ....................................
125
Seat belt force limiter ......................... 43
Seat belts ............................................. 40
Children in the vehicle  .....................45
Cleaning .........................................
231
Fastening  ......................................... 42
Proper use of  ................................... 41
Safety guidelines  ............................. 34
Safety notes ..................................... 40
Telltale ..................................... 26, 259
Seat heating ......................................... 65
Seating capacity ................................ 206
Seats ..................................................... 62 Adjustment  ...................................... 62
Easy-entry/exit feature  ....................67
Heating ............................................ 65
Memory function .............................. 70
Selective setting
see Key, SmartKey                                   
Selector lever
see Gear selector lever                            
Self-test 
OCS (Occupant Classification
System) ........................................... 39
Tele Aid  .......................................... 178
Service
see Maintenance                                      
Service, parts  .................................... 292
Service and warranty information  .....18
Service intervals see Maintenance System, Service
indicator message                                    
Service life (tires)  .............................. 210
Settings  Factory setting (SmartKey)  ..............57
Memory function .............................. 70
Menu ............................................. 102
Selective setting (SmartKey)  ............57
Shelf behind roll bars  ........................ 175
Side marker lamps  
Cleaning lenses ............................. 229
Messages in the multifunction
display  ........................................... 252
Sidewall (tires)  .................................. 219
Side windows see Power windows                                   Index
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SmartKey
see Key, SmartKey                                    
Snow chains  ...................................... 220
Snow tires see Winter tires                                        
Spare wheel  ....................................... 297
Mounting ....................................... 277
Storage location ............................ 235
Speed settings 
Cruise control ................................ 160
Resume function ............................ 161
SRS (Supplemental Restraint System)  
Indicator lamp ................... 26, 32, 260
Messages in the multifunction
display  ........................................... 245
Standing water, driving through  ......224
Starter switch positions  SmartKey ......................................... 61
Starting difficulties (engine)  ..............80
Starting the engine ............................. 80
Steering column see Multifunction steering wheel,
Adjustment                                               
Steering wheel
see Multifunction steering wheel             
Steering wheel gearshift control  .......89
Stolen Vehicle Recovery Services  ...183
Storage compartments  .....................174
Storing tires ....................................... 210
Sun visors .......................................... 176T
Tachometer  .......................................... 93
Overspeed range  ............................. 93
Tail lamps  
Cleaning lenses
 ............................. 229
Messages in the multifunction
display  ........................................... 254
Tar stains  ........................................... 228
Technical data  Air conditioning refrigerant ............ 303
Brake fluid  ..................................... 303
Capacities fuels, coolants,
lubricants etc.  ................................ 300
Coolant .......................................... 304
Engine oil additives  ........................303
Engine oils ..................................... 302Fuel requirements .......................... 303
Gasoline additives
 .......................... 304
Identification labels  .......................292
Premium unleaded gasoline  ...........303
Rims and tires  ................................ 297
Spare wheel ................................... 300
Vehicle specification SLK 300  .......294
Vehicle specification SLK 350  .......295
Vehicle specification SLK 55 AMG . 296
Washer and headlamp cleaning
system ................................... 302, 306
Technical data (dimensions)
see Vehicle specification                         
Technical data (electrical system)
see Vehicle specification                         
Technical data (engine)
see Vehicle specification                         
Technical data (weights)
see Vehicle specification                         
Tele Aid  ............................................... 178
Emergency calls ............................. 179
Information button  .........................181
Initiating an emergency call
manually  ........................................ 180
Messages in the multifunction
display  ........................................... 245
Remote door unlock ...................... 182
Roadside Assistance button .......... 180
Search & Send  ............................... 182
SOS button .................................... 180
Stolen Vehicle Recovery Services .. 183
System self-test ............................. 178
Telephone  .................................... 27, 146
Answering/ending a call ................ 110
Call lists  ......................................... 156
Emergency calls “911” .................. 152
Hands-free microphone  ...................30
Making calls ................................... 156
Menu ............................................. 110
Operation ....................................... 110
Phone book ........................... 111, 153
Redialing  ........................................ 111
Temperature  
Interior temperature  ......................166
Outside  .................................... 97, 104
Tightening torque 
Wheels  ........................................... 281
Time setting ....................................... 10514
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TIN (Tire Identification Number) ......
219
Tire and Loading Information
placard  ............................................... 205
Tire and loading terminology  ...........217
TIREFIT ............................................... 273
Tire Identification Number see TIN 
                                                    
Tire inflation pressure 
Checking ........................................ 201
Important notes on ........................ 199
Label on the inside of fuel filler
flap  ................................................ 200
Placard on driver’s door B-pillar ..... 205
Tire labeling  ....................................... 212
Tire load rating  .................................. 218
Tire ply composition and material
used .................................................... 219
Tire repair kit see TIREFIT                                               
Tires ........................................... 197, 297
Advanced Tire Pressure
Monitoring System (Advanced
TPMS) ............................................ 201
Air pressure ................................... 198
Care and maintenance ................... 209
Cleaning ......................................... 210
Direction of rotation, spinning  .......209
Important notes on tire inflation
pressure  ........................................ 199
Inflation pressure .................. 200, 201
Information placard ....................... 205
Inspection  ...................................... 209
Labeling  ......................................... 212
Load index ............................. 213, 218
Load rating .................................... 218
Messages in the multifunction
display  ................................... 241, 255
Ply composition and material
used ............................................... 219
Problems under-/overinflation ...... 200
Retreads  ........................................ 197
Rims and tires (technical data) ...... 297
Rotation ......................................... 212
Service life ..................................... 210
Sizes .............................................. 297
Snow chains .................................. 220
Speed rating .......................... 214, 219
Storing  ........................................... 210Temperature 
.......................... 199, 211
Terminology  ................................... 217
TIREFIT (tire repair kit) ................... 273
Tire Identification Number ............. 219
TPMS low tire pressure/
malfunction telltale .................. 26, 262
Traction ................................. 211, 219
Tread  ............................................. 219
Tread depth  ........................... 210, 219
Treadwear
 ...................................... 211
Treadwear indicators ............. 210, 219
Vehicle maximum load on  ..............219
Wear pattern .................................. 212
Winter tires  ............................ 219, 297
Tire speed rating  .......................214, 219
Total load limit ................................... 219
Tow-away alarm  .................................. 52
Towing  
Towing eye bolt .............................. 286
Vehicle  ........................................... 285
Towing eye bolt  ................................. 286
Traction ...................................... 211, 219
Transmission see Automatic transmission or
Manual transmission                                
Transmission fluid level  .................... 195
Transmission gear selector lever see Gear selector lever                            
Transmission positions  ....................... 87
Traveling abroad  ............................... 224
Tread (tires)  ....................................... 219
Tread depth (tires)  ....................210, 219
Treadwear  .......................................... 211
Treadwear indicators (tires) .... 210, 219
Trip computer menu  .........................109
Trip odometer, resetting  ..................... 93
Trunk  
Closing  ............................................. 60
Messages in the multifunction
display  ........................................... 245
Opening ........................................... 60
Trunk lid emergency release ............ 60
Unlocking manually  .......................265
Valet locking .................................... 61
Turning off the engine  ........................84
Turn signals ......................................... 73
Cleaning lenses ............................. 229 Index
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R
independently of the front air bags
R independently of the ETDs
The passenger head-thorax air bag  : will
only deploy if the OCS senses that the
passenger seat is occupied and the impact
exceeds a preset deployment threshold.
Head-thorax air bags  : are not deployed in
side impacts which do not exceed the
system’s deployment threshold. G
Warning!
Only use seat covers which have been tested
and approved by Mercedes-Benz for your
vehicle model. Using other seat covers may
interfere with or prevent the deployment of
the head-thorax air bags. Contact an
authorized Mercedes-Benz Center for
availability. Occupant Classification System
The Occupant Classification System (OCS)
activates or deactivates the passenger front
air bag and passenger-side knee bag
automatically. 
The respective status is based
on the classified occupant weight category
determined by weight sensor readings from
the passenger seat.
The system does not deactivate the
passenger head-thorax air bag and the
Emergency Tensioning Devices (ETDs).
To be classified correctly, the passenger must
sit
R with the seat belt properly fastened
R in a position that is as upright as possible
with the back against the seat backrest
R with the feet on the floor
If the occupant’s weight is transferred to
another object in the vehicle (e.g. by leaning
on armrests), the OCS may not be able to
properly approximate the occupant’s weight
category.
If your seat, including the trim cover and
cushion, needs to be serviced in any way, take the vehicle to an authorized Mercedes-Benz
Center.
Only seat accessories approved by
Mercedes-Benz may be used.
Both the driver and the passenger should
always use the 
04 indicator
lamp as an indication of whether or not the
passenger is properly positioned. G
Warning!
If the  04 indicator lamp
illuminates when an adult or someone larger
than a small individual is in the passenger
seat, have the passenger reposition himself
or herself in the seat until the
04 indicator lamp goes out.
In the event of a collision, the air bag control
unit will not allow passenger front air bag
deployment when the OCS has classified the
passenger seat occupant as weighting as
much as or less than a typical 12-month-old
child in a standard child restraint or if the
passenger seat is classified as being empty.
When 
the OCS senses that the passenger seat
occupant is classified as being up to or less
than the weight of a typical 12-month-old
child in a standard child restraint, the
04 indicator lamp will illuminate
when the engine is started and remain
illuminated, indicating that the passenger
front air bag is deactivated.
When the OCS senses that the passenger seat
is classified as being empty, the
04 indicator lamp will illuminate
when the engine is started and remain
illuminated, indicating that the passenger
front air bag is deactivated.
When the OCS senses that the passenger seat
occupant is classified as being heavier than
the weight of a typical 12-month-old child
seated in a standard child restraint or as being
a small individual (such as a young teenager
or a small adult), the  04
indicator lamp will illuminate for
approximately 6 seconds when the engine is
started and then, depending on occupant Occupant safety
37
Safety and security
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X
Arming: Lock the vehicle with the
SmartKey.
The turn signal lamps flash three times and
an acoustic warning sounds three times to
indicate that the vehicle is locked. Indicator
lamp  : flashes to indicate that the alarm
system is armed.
i If the turn signal lamps do not flash three
times and the acoustic warning does not
sound three times, a door or the trunk may
not be properly closed.
Close the respective element.
X Disarming: Unlock the vehicle with the
SmartKey.
The turn signal lamps flash once and an
acoustic warning sounds once to indicate
that the alarm system is disarmed.
i Unless you open a door or the trunk within
approximately 40 seconds after unlocking
the vehicle:
R The vehicle will be locked again.
R The anti-theft alarm system will be
rearmed. Tow-away alarm
Once the tow-away alarm is armed, a visual
and audible alarm will be triggered when
someone attempts to raise the vehicle.
To cancel the alarm after it has been
triggered, see “Canceling the alarm”
(Y page 53). i
If the alarm stays on for more than
30 seconds, a call to the Customer
Assistance Center is initiated automatically
by the Tele Aid system provided that you
have subscribed to the Tele Aid service and
that it has been activated properly, and that
the necessary mobile phone, power supply
and GPS coverage are available.
X Arming: Lock the vehicle with the
SmartKey.
The tow-away alarm is armed after about
30 seconds automatically.
X Disarming: Unlock the vehicle with the
SmartKey.
The tow-away alarm remains disarmed until
you lock the vehicle again.
Disabling tow-away alarm To prevent triggering the tow-away alarm,
disable the tow-away alarm feature before
towing the vehicle, or when parking on a
surface subject to movement, such as a ferry
or auto train.
X
Remove the SmartKey from the starter
switch.
X Press tow-away alarm switch  ;.
Indicator lamp : comes on briefly.
X Exit and lock the vehicle.
The tow-away alarm remains disabled until
you lock the vehicle again. 52
Anti-theft systemsSafety and security
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