Page 4 of 481

Contents
Introduction.......................................... 9
Product information ................................ 9
Operator’s Manual ............................... 10
Service and warranty information .. 10
Important notice for California
retail buyers and lessees of
Mercedes-Benz automobiles .......... 11
Maintenance .................................. 12
Roadside Assistance ...................... 12
Change of address or ownership.... 12
Operating your vehicle outside
the USA or Canada......................... 13
Where to find it .................................... 14
Symbols ............................................... 15
Operating safety .................................. 16
Proper use of the vehicle ............... 16
Problems with your vehicle .................. 17
Reporting safety defects...................... 18
Reporting safety defects ................ 18
Vehicle data recording......................... 19
Information regarding electronic
recording devices........................... 19
At a glance.......................................... 21
Cockpit ................................................. 22
Instrument cluster ................................ 24
Multifunction steering wheel ................ 26
Center console ..................................... 28
Upper part ...................................... 28
Lower part ...................................... 29
Overhead control panel ........................ 30
Door control panel................................ 31
Getting started................................... 33
Unlocking ............................................. 34
Unlocking with the SmartKey ......... 34
Starter switch positions .................. 36
Adjusting .............................................. 38
Seats .............................................. 38
Steering wheel ................................ 42
Mirrors ............................................ 45
Driving .................................................. 47
Fastening the seat belts ................. 47
Starting the engine ......................... 50
Parking brake ................................. 52
Driving ............................................ 53
Switching on headlamps ................. 55
Turn signals .................................... 55
Windshield wipers ........................... 56
Problems while driving.................... 58
Parking and locking .............................. 59
Parking brake ................................. 59
Switching off headlamps................. 60
Turning off engine ........................... 61
Locking ........................................... 62
Page 24 of 481
23 At a glance
Cockpit
Item
Page
1
Automatic transmission*:
Steering wheel gearshift
control*
165
SLK 55 AMG:
Steering wheel gearshift
control
167
2
Multifunction steering
wheel
26,
124
3
Horn
4
Instrument cluster
24,
120
5
Overhead control panel
30,
117
6
Glove box
266
7
Center console
28, 29
8
Sun sensor for automatic
climate control*
9
Starter switch
36
Item
Page
a
Steering wheel adjustment
handle, manual
42
b
Steering wheel adjustment
lever, electrical*
43
Heated steering wheel*
(SLK 280, SLK 350, Canada
only)
288
c
Headlamp cleaning* switch
173
d
Hood lock release
307
e
Exterior lamp switch
55,
110
f
Combination switch
Turn signals
55
Windshield wipers
56
High beam headlamps
55
g
Power window switches
246
h
Door handle
97
j
Cruise control lever
260
Page 26 of 481

25 At a glance
Instrument cluster
Item
Page
1
Multifunction display
with:Main odometer
128
Trip odometer
122
Automatic transmission*:
Gear range indicator
51,
158
Automatic transmission*:
Program mode
163,
169
Outside temperature
indicator (or actual speed
when selected)
138
2
Tachometer with:?
Engine malfunction
indicator lamp,
USA only
364
±
Engine malfunction
indicator lamp,
Canada only
364
Item
Page
<
Seat belt telltale
71,
366
A
High beam
headlamp indicator
lamp
55,
114
3
Fuel gauge with:4
Fuel reserve warning
lamp
365
The arrow indicates that the
fuel filler flap is on the rear
right-hand side.
304
4
Clock
122
5
Speedometer with:1
Supplemental
Restraint System
(SRS) indicator lamp
64,
366
-
Antilock Brake
System (ABS)
indicator lamp
82,
362
Item
Page
L
Left turn signal
indicator lamp
K
Right turn signal
indicator lamp
55
v
Electronic Stability
Program (ESP
®)
warning lamp
84,
365
;
Brake warning lamp,
USA only
59,
363
3
Brake warning lamp,
Canada only
363
6
Reset button
120
7
Knobs for instrument
cluster illumination
120
Page 35 of 481
34 Getting startedThe “Getting started” section provides an
overview of the vehicle’s most basic func-
tions. First-time Mercedes-Benz owners
should pay special attention to the infor-
mation given here.
If you are already familiar with the basic
functions described here, the “Controls in
detail” section (
page 91) will provide you
with further information. The correspond-
ing page references are located at the end
of each segment.
Unlocking
Unlocking with the SmartKeySmartKey with remote control1‹Lock button
2ŠUnlock button for trunk lid
3ŒUnlock button
4ÂPanic button (
page 80)
Press unlock buttonŒ on the
SmartKey.
All turn signal lamps flash once. The
locking knobs in the doors move up.
The anti-theft alarm system is dis-
armed.
Get in the vehicle and insert the
SmartKey in the starter switch.
Page 36 of 481
35 Getting started
Unlocking
For more information, see “Locking and
unlocking” (
page 92).
iOpening a door causes the windows on
that side of the car to open slightly.
They will return to the up position when
the door is closed.
!The side windows will not open or close
if the battery is discharged or the win-
dows are covered with ice. As a result,
you may no longer be able to properly
close the door. Do not attempt to force
the door shut. Doing so may damage
the door or the side window. Correct
the condition that prevents the
windows from operating before
attempting to close the door.
iWithout the antenna on the left rear
side of the vehicle installed, the
SmartKey signaling range is consider-
ably reduced. Hold the SmartKey in
close proximity towards the antenna
base when locking or unlocking the
vehicle.
Page 37 of 481

36 Getting startedUnlockingStarter switch positions SmartKey
Starter switch0For removing the SmartKey
The steering is locked when the
SmartKey is removed from the starter
switch.
1Power supply for some electrical con-
sumers, such as seat adjustment.2Ignition (power supply for all electrical
consumers) and driving position.
All lamps (except high beam headlamp
indicator lamp and turn signal indicator
lamps unless activated) in the instru-
ment cluster come on. 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 re-
mains on after starting the engine or
comes on while driving, refer to see
“Lamps in instrument cluster”
(
page 362).
3Starting position.
Warning!
G
When leaving the vehicle, always remove the
SmartKey from the starter switch, take it
with you, and lock the vehicle. Do not leave
children unattended in the vehicle, or with
access to an unlocked vehicle. Unsuper-
vised use of vehicle equipment may cause
an accident and/or serious personal injury.
Page 38 of 481

37 Getting started
Unlocking
For information on starting the engine, see
(page 50).
iWhen you switch on ignition, the indi-
cator and warning lamps (except high
beam headlamp indicator lamp and
turn signal indicator lamps unless acti-
vated) in the instrument cluster come
on. The indicator and warning lamps
(except high beam headlamp indicator
lamp and turn signal indicator lamps if
activated) will go out when the engine
is running. This indicates that the re-
spective systems are operational.iVehicles with automatic transmission*:
The SmartKey can only be removed
from the starter switch with the gear
selector lever in positionP.
!If the SmartKey cannot be turned in the
starter switch, the vehicle battery may
not be sufficiently charged.
Check the vehicle battery and
charge it if necessary (
page 421).
Get a jump start (
page 424).
To prevent accelerated vehicle battery
discharge or a completely discharged
vehicle battery, always remove the
SmartKey from the starter switch when
the engine is not in operation.
Page 56 of 481
55 Getting started
Driving
Switching on headlamps
Low beam headlamps
The exterior lamp switch is located on the
dashboard to the left of the steering wheel.Exterior lamp switch1Off
2Low beam headlamps on
Turn exterior lamp switch to
positionB.High beam
The combination switch is located on the
left of the steering column.
Combination switch1High beam
2High beam flasher
Push combination switch in direction of
arrow1.
The high beam headlamp indicator
lampA in the instrument cluster
comes on (
page 24).
For more information on headlamps, see
“Lighting” (
page 110).
Turn signals
The combination switch is located on the
left of the steering column.Combination switch1Turn signals, right
2Turn signals, left