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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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
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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
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Cockpit
Function Page
:
Steering wheel gearshift
control (automatic
transmission)
89
;
Multifunction steering
wheel 27,
94 =
Horn
?
Instrument cluster 26,
92 A
Lever for Voice Control
System, see separate
operating instructions
B
Overhead control panel 30
C
Sun sensor (automatic
climate control)
D
Glove box 174
E
Center console 28
F
Starter switch
61 Function Page
G
Steering wheel adjustment,
manual
66
H
Steering wheel adjustment,
electrical
66
Heated steering wheel 67
I
On-board diagnostics
(OBD) socket
J
Hood lock release 192
K
Exterior lamp switch 71
L
Combination switch:
Turn signals 73
Wipers 76
High beam 74
M
Door control panel 30
N
Cruise control lever 159Cockpit
25At a glance
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Vehicle equipment ..............................
56
Locking and unlocking .......................56
Starter switch positions ..................... 61
Seats .................................................... 62
Multifunction steering wheel .............66
Mirrors ................................................. 68
Memory function ................................. 70
Lighting ................................................ 70
Wipers .................................................. 76
Power windows ................................... 78
Driving and parking ............................ 79
Manual transmission .......................... 84
Automatic transmission ..................... 85
Instrument cluster ..............................92
Control system .................................... 93
Audio system .................................... 112
Driving systems ................................ 159
Climate control system ....................162
Rear window defroster ..................... 170
Retractable hardtop .........................170
Loading and storing ..........................174
Useful features ................................. 176 55Controls in detail
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Illumination of the emergency release button:
R
The button flashes for 30 minutes after
opening the trunk.
R The button flashes for 60 minutes after
closing the trunk.
The emergency release button does not
unlock the trunk, if the vehicle battery is
discharged or disconnected.
If the vehicle has previously been locked
centrally with the SmartKey, opening the
trunk from the inside using the emergency
release button will trigger the anti-theft alarm
system.
To cancel the alarm, see ( Y page 53).Valet locking
You can lock the trunk separately with the
mechanical key. This denies unauthorized
access to the trunk, e.g. when you valet park
the vehicle.
X Leave only the SmartKey less its
mechanical key with the vehicle. X
Valet locking: Close the trunk.
X Remove the mechanical key from the
SmartKey (Y page 264).
X Insert the mechanical key in the trunk lid
lock.
X Turn the mechanical key clockwise to
position 2 and remove the mechanical
key in that position to lock the trunk.
The trunk remains locked even when the
vehicle is centrally unlocked. You can then only open the trunk with the
mechanical key.
X
Canceling: Insert the mechanical key in
the trunk lid lock.
X Turn the mechanical key counterclockwise
to neutral position 1 and remove the
mechanical key in that position to unlock
the trunk.
You can now open the trunk. Starter switch positions
SmartKey
G
Observe Safety notes, see page 45. Starter switch
g
For removing SmartKey
Vehicles with automatic transmission:
Gear selector lever must be in park
position P.
1 Power supply for some electrical
consumers, e.g. wipers
2 Ignition (power supply for all electrical
consumers) and driving position
3 Starting position
When you switch on the ignition, all lamps in
the instrument cluster come on. The high-
beam headlamp indicator lamp and turn
signal indicator lamps will only come on if
activated. If a lamp in the instrument cluster
fails to come on when the ignition is switched
on, have it checked and replaced if necessary.
If a lamp in the instrument cluster remains on
after starting the engine or comes on while Starter switch positions
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To signal minor directional changes:
X
Press the combination switch only to the
point of resistance in direction of
arrow ; or ? and release.
The corresponding turn signal lamps will
flash three times.
High beam X
Turn the exterior lamp switch to position
L (Y page 71).
X Switching on: Push the combination
switch in direction of arrow :.
The high-beam headlamp indicator lamp
K in the instrument cluster comes on.
X Switching off: Pull the combination switch
in direction of arrow = to its original
position.
i Also note the information on high-beam
headlamps with activated automatic
headlamp mode (Y page 71) or the daytime
running lamp mode ( Y page 72).
High-beam flasher X
Switching on: Pull the combination switch
briefly in direction of arrow =.Hazard warning flasher
The hazard warning flasher can be switched
on at all times, even with the SmartKey
removed from the starter switch.
The hazard warning flasher comes on
automatically when an air bag deploys. X
Switching on: Press hazard warning
flasher switch :.
All turn signal lamps are flashing.
i With the hazard warning flasher activated
and the combination switch set for either
left or right turn, only the respective left or
right turn signals will operate when the
ignition is switched on.
X Switching off: Press hazard warning
flasher switch : again.
i If the hazard warning flasher has been
activated automatically, press hazard
warning flasher switch : to switch it off. Headlamp cleaning system
The headlamps will be cleaned with a high-
pressure water jet automatically when the
engine is running and you have
R switched on the headlamps
and
R the windshield wipers have wiped the
windshield with washer fluid five times
The counter resets when you switch off the
headlamps.
For information on filling up the washer
reservoir, see “Washer system and headlamp
cleaning system” ( Y page 196).74
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Shut-off must be switched on
(Y page 107))
R open a door
The interior lighting goes out after a short
time.
i If a door remains open, the interior lamps
go out automatically after approximately
5 minutes when the SmartKey is removed
or in starter switch position 0.
X Deactivating: Press switch q.
Manual control !
An interior lamp switched on manually
does not go out automatically.
Leaving an interior lamp switched on for an
extended period of time with the engine
turned off could result in a discharged
battery.
X Switching interior lighting on/off: Press
switch c.
i The footwell lighting is switched on and
off simultaneously with the manual control.
The standard reading lamps are located to the
left and right of the overhead control panel.
Reading lamps as part of the interior lighting
package are located on the lower edge of the
interior rear view mirror.
X Switching reading lamps on/off: Press
respective switch p.
Emergency lighting The interior lighting comes on automatically
if the vehicle is involved in an accident.
Switching off:
X
Press switch q.
or
X Press hazard warning flasher switch
(Y page 74). Wipers
Notes
! Do not operate the wipers when the
windshield is dry. Dust that accumulates on
a windshield might scratch the glass and/
or damage the wiper blades when wiping
occurs on a dry windshield. If it is necessary
to operate the wipers in dry weather
conditions, always operate the wipers with
washer fluid. Windshield wipers
X Observe notes on page (Y page 76).
Switching on/off Combination switch
1
0 Windshield wipers off
2 I Intermittent wiping
3 II Normal wiper speed
4 III Fast wiper speed
A í Single wipe/ î Wiping with
washer fluid
X Switch on the ignition.
X Turn the combination switch to the desired
position, depending on the intensity of the
rain.
Intermittent wiping Only switch on intermittent wiping under wet
weather conditions or in the presence of
precipitation.76
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