Page 4 of 506

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 ..................................... 27
Upper part ...................................... 27
Lower part ...................................... 28
Overhead control panel ........................ 29
Door control panel................................ 30
Getting started...................................  31
Unlocking .............................................  32
Unlocking with the SmartKey .........  32
Unlocking with KEYLESS-GO*.........  33
Starter switch positions ..................  34
Adjusting ..............................................  37
Seats ..............................................  37
Steering wheel ................................  40
Mirrors ............................................  41
Driving ..................................................  43
Fastening the seat belts .................  43
Starting the engine .........................  46
Switching on headlamps .................  50
Turn signals ....................................  51
Windshield wipers ...........................  52
Problems while driving....................  54
Parking and locking ..............................  55
Parking brake .................................  55
Switching off headlamps.................  56
Turning off the engine .....................  56 
     
        
        Page 22 of 506
21 At a glance
Cockpit
Instrument cluster
Multifunction steering wheel
Center console
Overhead control panel
Door control panel 
     
        
        Page 24 of 506
23 At a glance
Cockpit
Item
Page
1
Steering wheel gearshift 
buttons 
(CLK 500, CLK 55 AMG)
171
2
Combination switch
Turn signals
Windshield wipers
High beam
51
52
51
3
Cruise control lever
255
4
Multifunction steering 
wheel
26,
134
5
Instrument cluster
24,
130
6
Starter switch
34
7
Front Parktronic* warning 
indicators
262
8
Overhead control panel
29
Item
Page
9
Glove box
269
a
Cup holder
271
b
Center console
27, 28
c
Hood lock release
305
d
Horn
e
Steering wheel adjustment 
stalk
40
f
Parking brake pedal
49
g
Door control panel
30
h
Parking brake release
49
j
Exterior lamp switch
50,
122
k
Exterior rear view mirror 
adjustment
41
l
Headlamp washer switch*
176 
     
        
        Page 65 of 506

64 Safety and SecurityOccupant safety
Safety guidelines for the seat belt, 
emergency tensioning device and 
air bag We caution you not to rely on the pres-
ence of the air bags in order to avoid 
wearing your seat belt.
It is important to your safety and that of 
your passengers that you replace de-
ployed air bags and repair any malfunc-
tioning air bags to make sure that the 
vehicle will continue to provide supple-
mental crash protection for occupants.Warning!
G
Damaged seat belts or belts that were 
highly stressed in an accident must be 
replaced and their anchoring points 
must also be checked. Only use belts in-
stalled or supplied by an authorized 
Mercedes-Benz Center.
Air bags and emergency tensioning de-
vices (ETDs) are designed to function on 
a one-time-only basis. An air bag or ETD 
that is deployed must be replaced.
Do not pass belts over sharp edges. 
They could tear.
Do not make any modification that could 
change the effectiveness of the belts.
Do not bleach or dye seat belts as this 
may severely weaken them. In a crash 
they may not be able to provide ade-
quate protection. 
No modifications of any kind may be 
made to any components or wiring of 
the SRS. This includes changing or re-
moving any component or part of the 
SRS, the installation of additional trim 
material, seat covers, badges, etc. over 
the steering wheel hub, passenger front 
air bag cover, front seat backrests or 
rear side trim panels, and installation of 
additional electrical/electronic equip-
ment on or near SRS components and 
wiring. Keep area between air bags and 
occupants free from objects (e.g. pack-
ages, purses, umbrellas, etc.).
Air bag system components will be hot 
after an air bag has inflated. Do not 
touch.
Never place your feet on the instrument 
panel, dashboard, or on the seat. Always 
keep both feet on the floor in front of the 
seat. 
     
        
        Page 71 of 506

70 Safety and SecurityOccupant safety
Emergency tensioning device (ETD), 
seat belt force limiter
The seat belts are equipped with emergen-
cy tensioning devices and belt force 
limiters.
The ETD is designed to activate in the 
following cases:
in frontal or rear-end impacts 
exceeding a preset severity level
if the restraint systems are operational 
and functioning correctly, see 
1indicator lamp (
page 60)In an impact, emergency tensioning 
devices remove slack from the belts. Belt 
force limiters reduce the force exerted by 
the seat belts on occupants during a crash.
Automatic comfort-fit feature seat belt
An automatic comfort-fit feature for front 
seats reduces the retracting force of the 
seat belts when they are in normal use.
Belts should not be worn twisted. In a 
crash, you wouldn’t have the full width 
of the belt to distribute impact forces. 
The twisted belt against your body could 
cause injuries.
Pregnant women should also use a 
lap-shoulder belt. The lap belt portion 
should be positioned as low as possible 
on the hips to avoid any possible pres-
sure on the abdomen.
Never place your feet on the instrument 
panel, dashboard, or on the seat. Always 
keep both feet on the floor in front of the 
seat.
When using a seat belt to secure infant 
or toddler restraints or children in 
booster seats, always follow the child 
seat manufacturer’s instructions. 
!The ETDs for the front seats will only 
activate if the front seat belts are fas-
tened (latch plate properly inserted 
into buckle).
The ETDs for the rear seats will activate 
with or without the respective seat 
belts fastened.
Warning!
G
An emergency tensioning device (ETD) that 
was activated must be replaced.
When disposing of the emergency tension-
ing device, our safety instructions must be 
followed. These are available at your 
authorized Mercedes-Benz Center.
 
     
        
        Page 123 of 506

122 Controls in detailLightingFor information on how to switch on the 
headlamps and use the turn signals, see 
“Switching on headlamps” (
page 50) 
and “Turn signals” (
page 51).
Exterior lamp switch
The exterior lamp switch is located on the 
dashboard to the left of the steering wheel.Exterior lamp switch
MOff
Daytime running lamp mode 
(
page 152)
UAutomatic headlamp mode
Daytime running lamp mode 
(page 152)
CParking lamps (also tail lamps, 
license plate lamps, side marker 
lamps, instrument panel lamps)
BLow beam headlamps (or high 
beam headlamps when the combi-
nation switch is pushed forward) 
and parking lamps
ˆStanding lamps, right (turn left one 
stop)
‚Standing lamps, left (turn left two 
stops)
‡Indicator lamp for front fog lamps
†Indicator lamp for rear fog lamp
iIf you drive in countries where vehicles 
drive on the other side of the road than 
the country in which the vehicle is reg-
istered, you must have the headlamps 
modified for symmetrical low beams. 
Relevant information can be obtained 
at an authorized Mercedes-Benz 
Center.