
Symbols
Trademarks:
R Bluetooth ®
 is a registered trademark of
Bluetooth SIG Inc.
R ESP ®
 
is a registered trademark of Daimler.
R HomeLink ®
 is a registered trademark of
Prince, a Johnson Controls Company.
R iPod ®
 and iTunes ®
 are registered
trademarks of Apple Inc., registered in the
U.S.A. and other countries.
R Logic 7 ®
 is a registered trademark of
Harman International Industries,
Incorporated.
R Microsoft ®
 is a registered trademark of
Microsoft Corporation in the U.S.A. and
other countries.
R SIRIUS and related marks are trademarks
of SIRIUS XM Radio Inc.
R Windows media ®
 is a registered trademark
of Microsoft Corporation in the U.S.A. and
other countries.
The following symbols are found in this
Operator’s Manual: G
Warning!
Warning notices draw your attention to
hazards 
 that may endanger your health or life,
or the health or life of others.
!  Highlights hazards that may result in
damage to your vehicle.
i Helpful hints or further information you
may find useful.
X This symbol points to instructions
for you to follow.
X A number of these symbols
appearing in succession indicates
a multiple-step procedure.
Y page This symbol tells you where to look
for further information on a topic. YY
This continuation symbol marks a
warning or procedure which is
continued on the next page.
Display Text in displays, such as the control
system, are printed in the type
shown here.
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Clear button .......................................
116
Climate control see Climate control system 
                    
Climate control system  ....................162
Air conditioning  ............................. 165
Air conditioning refrigerant ............ 303
Air distribution ............................... 168
Air recirculation mode ................... 169
Air vents ........................................ 166
Air volume ..................................... 168
Automatic mode ............................ 166
Deactivating system  ......................165
Front defroster  .............................. 168
Maximum cooling MAX COOL  ........169
Residual heat and ventilation ......... 169
Temperature  .................................. 166
Clock  ...................................... 26, 93, 105
Cockpit  ................................................. 25
Cold tire inflation pressure  ..............217
Collapsible tire (spare wheel)  ..........300
Collapsible wheel chock  ...................234
COMAND system see separate COMAND system
operating instructions                              
Combination switch  ............................73
Control system .................................... 93
Multifunction display  .......................95
Multifunction steering wheel ............ 94
Resetting to factory settings .......... 102
Control system menus ........................ 96
AMG ................................................. 97
Audio/DVD  .................................... 100
Navigation ..................................... 101
Settings ......................................... 102
Standard display  .............................. 96
Telephone  ...................................... 110
Trip computer ................................ 109
Vehicle status message memory  ...101
Control system submenus 
Convenience .................................. 108
Instrument cluster  .........................103
Lighting .......................................... 105
Time/Date ..................................... 105
Vehicle  ........................................... 108
Convenience submenu  
Easy-entry/exit feature .................. 108 Coolant
 
Anticorrosion/antifreeze  ...............305
Capacities ...................................... 301
Checking level  ............................... 196
Messages in the multifunction
display  ........................................... 247
Corner-illuminating front fog
lamps  .................................................... 75
Cruise control  .................................... 159
Activating ....................................... 160
Canceling  ....................................... 160
Changing the set speed  .................161
Last stored speed .......................... 161
Lever .............................................. 160
Messages in the multifunction
display  ........................................... 241
Resume function ............................ 161
Setting current speed .................... 160
Cup holders ........................................ 176
Curb weight  ....................................... 217
Customer Assistance Center (CAC)  ...21
Customer Relations Department  .......21 D
Dashboard see Instrument cluster 
                            
Data recording ..................................... 21
Date, Setting ...................................... 105
Daytime running lamp mode  ..............72
Switching on or off ......................... 106
Deep water
see Standing water                                  
Defogging (windshield)  .....................169
Defroster  Front (Climate control system)  ......168
Rear window  .................................. 170
Delayed shut-off 
Exterior lamps ................................ 107
Interior lighting  .............................. 107
Department of Transportation
see DOT                                                    
Difficulties  
While driving .................................... 82
With starting  .................................... 80
Digital speedometer  ............................ 97
Dimensions (vehicle) see Vehicle specification                          6
Index 171_AKB; 3; 60, en-US
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Consumption .................................
193
Messages in the multifunction
display
 ........................................... 250
Oil dipstick ..................................... 193
Recommended engine oils and oil
filter ............................................... 302
ESP ®
 (Electronic Stability
Program)  .............................................. 49
ETS  .................................................. 50
Messages in the multifunction
display  ........................................... 237
Warning lamp ................................. 260
ETD (Emergency Tensioning
Device)  ................................................. 43
Safety guidelines  ............................. 34
ETS (Electronic Traction System)  ....... 50
Express operation  Power windows ................................ 78
Exterior lamp switch ........................... 71
Exterior rear view mirrors  ..................68
Parking position ............................... 69
Exterior view of vehicle  ......................24 F
Fastening the seat belts  .....................42
First aid kit  .........................................
234
Flat tire ............................................... 273
Lowering the vehicle  ......................281
Mounting the spare wheel ............. 277
Preparing the vehicle  .....................273
Spare wheel ........................... 273, 300
TIREFIT (tire repair kit) ................... 273
Floormats ........................................... 187
Fluids  
Automatic transmission fluid ......... 301
Brake fluid  ..................................... 301
Capacities ...................................... 300
Engine coolant ............................... 301
Engine oil ....................................... 301
Hydraulic fluid ................................ 302
Manual transmission oil ................. 301
Power steering fluid ....................... 301
Washer and headlamp cleaning
system ........................................... 302
Fog lamps ............................................. 73
Messages in the multifunction
display  ................................... 252, 254Front air bags
see Air bags 
                                             
Front lamps
see Headlamps                                        
Front seat head restraints
see Head restraints                                  
Fuel  ..................................................... 190
Additives ........................................ 304
Capacity, fuel tank ......................... 301
Drive sensibly–safe fuel  .................221
Fuel consumption statistics  ...........109
Fuel filler flap and cap ................... 191
Fuel tank reserve warning
lamp  ........................................ 26, 261
Premium unleaded gasoline  ...........303
Refueling ........................................ 190
Requirements  ................................ 303
Fuel filler flap  ..................................... 191
Fuels, coolants, lubricants etc.  ........300
Fuel tank  Capacity ........................................ 301
Fuel filler flap and cap ................... 191
Refueling ........................................ 190
Fuses  .................................................. 288 G
Garage door opener .................... 30, 183
Gasoline see Fuel 
                                                   
GAWR (Gross Axle Weight Rating)  ...218
Gear range ........................................... 88
Indicator .......................................... 88
Limiting ............................................ 89
Shifting into optimal  ........................90
Gear selector lever  .............................. 86
Cleaning ......................................... 231
Gearshift pattern ............................. 86
Lock  ........................................... 80, 86
Shifting procedure ........................... 86
Transmission position indicator ....... 87
Transmission positions .................... 87
Gearshift lever ..................................... 84
Gearshift pattern ............................. 84
Generator
see Alternator                                          
Global locking/unlocking
see Key, SmartKey                                    8
Index 171_AKB; 3; 60, en-US
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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
13 171_AKB; 3; 60, en-US
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Indicator lamps ................................
26
Messages in the multifunction
display
 ........................................... 255U
Uniform Tire Quality Grading
Standards  .................................. 210, 219
Units  Selecting speedometer display
mode ............................................. 104
Unleaded gasoline, premium ........... 303
Unlocking the vehicle  
Manually
 ........................................ 264
SmartKey ......................................... 56
Upholstery, cleaning  .........................231
USB devices (media interface)  .........139
Useful features .................................. 176V
Valet locking  ........................................ 61
Vehicle  
Battery ........................................... 282
Care  ............................................... 227
Control system ................................ 93
Identification Number (VIN) ........... 292
Locking/unlocking
 ........................... 56
Lowering (wheel change)  ...............281
Modifications and alterations,
Operating safety  .............................. 20
Towing  ........................................... 285
Unlocking/locking manually .......... 264
Vehicle dimensions
see Vehicle specification                         
Vehicle Identification Number
(VIN) ................................................... 292
Vehicle jack see Jack                                                    
Vehicle lighting  .................................... 70
Vehicle loading  
Load limit  ....................................... 206
Terminology  ................................... 217
Vehicle maximum load on the tire ... 219
Vehicle specification   
SLK 300 ......................................... 294
SLK 350 ......................................... 295
SLK 55 AMG  .................................. 296Vehicle status message memory ....
101
Vehicle tool kit  .................................. 234
Vehicle washing see Vehicle care 
                                      
Vehicle weights
see Vehicle specification                          W
Warning sounds  Driver’s or passenger’s seat belt
 .....42
Parking brake ................................ 244
Seat belt telltale  ............................ 259
Warranty coverage  ............................ 292
Washer and headlamp cleaning
system ................................................ 306
Washer fluid  
Messages in the multifunction
display  ........................................... 247
Mixing ratio .................................... 306
Refilling .......................................... 196
Washing the vehicle  .......................... 227
Wear pattern (tires)  ..........................212
Weights (vehicle) see Vehicle specification                         
Wheel  
Changing  ....................................... 273
Removing ....................................... 278
Spare ............................................. 273
Tightening torque ........................... 281
Wheels, sizes  ..................................... 297
Wheels, Tires and .............................. 197
Windows see Power windows                                  
Windows, cleaning  ............................229
Wind screen  ....................................... 173
Windshield  Cleaning wiper blades .................... 229
Defogging ...................................... 169
Washer fluid  ................................... 306
Wipers  ............................................. 76
Windshield wipers  
Replacing wiper blades .................. 271
Winter driving 
Instructions .................................... 220
Snow chains .................................. 220
Tires ............................................... 219
Winter tires ................................ 219, 297 16
Index 171_AKB; 3; 60, en-US
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Exterior view
i
This Operator’s Manual describes all features, standard or optional, potentially available
for your vehicle at the time of purchase. Please be aware that your vehicle might not be
equipped with all features described in this manual. Function Page
:
Trunk:
Locking and unlocking 56
Opening and closing 59
Valet locking 61
;
Rear window defroster 170
=
Fuel filler flap 190
?
Doors:
Locking and unlocking 56,
264 A
Exterior rear view mirrors 68
B
Retractable hardtop 170
C
Windshield:
Wiping with washer fluid 77 Function Page
Cleaning 229
D
Wipers 76
Wiper blades, replacing 271
Wiper blades, cleaning 229
E
Hood 192
F
Front lamps 267
G
Front towing eye 286
H
Headlamp cleaning system 74
I
Tires and wheels 197
Rims and tires 297
J
Rear lamps 267
K
Rear towing eye 28624
Exterior viewAt a glance
171_AKB; 3; 60, en-US
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Function Page
E
Seat heating switch,
driver‘s side
65
F
AIRSCARF switch, driver‘s
side
65
G
Passenger front air bag off
indicator lamp    37,
263 H
Climate control system 162
Rear window defroster
switch
170
I
Cigarette lighter 177
J
Ashtray 177 Lower part
Function Page
:
Gearshift lever (manual
transmission)
84
Gear selector lever
(automatic transmission)
85
;
Retractable hardtop switch 170
=
Tow-away alarm switch 52
?
Parking brake lever 83
A
Storage compartment 175
B
Passenger-side exterior
rear view mirror button
68
C
Driver’s side exterior rear
view mirror button
68
D
Exterior rear view mirror
adjustment button
68
E
Program mode selector
switch (automatic
transmission)
88Center console
29At a glance
171_AKB; 3; 60, en-US
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