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 58 of 506

57 Getting started
Parking and locking
Press the seat belt release button 
(page 45).
Allow the retractor to completely re-
wind the seat belt by guiding the latch 
plate.
After exiting the vehicle, press the lock 
button‹ on the SmartKey 
(page 32).
With the hood, trunk and both doors 
closed, all turn signal lamps flash three 
times. The locking knobs in the doors 
move down. The anti-theft alarm sys-
tem is armed.For more information, see “Locking and 
unlocking” (
page 94).
Turning off the engine with 
KEYLESS-GO* 
Place the gear selector lever inP.
Press the KEYLESS-GO start/stop but-
ton to shut off the engine.
With the driver's door closed, the start-
er switch is now in position1. With the 
driver’s door opened, the starter switch 
is set to position0, same as SmartKey 
removed from starter switch 
(page 34).
Press the seat belt release button 
(page 45).
Allow the retractor to completely re-
wind the seat belt by guiding the latch 
plate.
iWith the SmartKey removed and the 
driver’s door open, a warning sounds if 
the vehicle’s exterior lamps are not 
switched off.Warning!
G
To prevent possible personal injury, always 
keep hands and fingers away from the door 
openings when closing the doors. Be espe-
cially careful when small children are 
around.
Before closing doors, make sure there is no 
possibility of someone getting caught in a 
door during closing.
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.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 306 of 506

305 Operation
Engine compartment
Engine compartment
Hood
Opening
The hood lock release lever is located to 
the left of the steering wheel under the 
dashboard.
1Hood lock release lever
Pull lever 1 downwards.
The hood is unlocked.
2Lever for opening the hood
Push lever 2 on the hood upwards.
Pull up on the hood and then release it.
The hood will be automatically held 
open at shoulder height by gas-filled 
struts.
Warning!
G
Do not pull the release lever while the vehi-
cle is in motion. Otherwise the hood could 
be forced open by passing air flow. 
!To avoid damage to the windshield wip-
ers or hood, never open the hood if the 
wiper arms are folded forward away 
from the windshield.
Warning!
G
To help prevent personal injury, stay clear of 
moving parts when the hood is open and the 
engine is running. Make sure the hood is 
properly closed before driving. When closing 
the hood, use extreme caution not to catch 
hands or fingers.
The radiator fan may continue to run for 
approximately 30 seconds or even restart 
after the engine has been turned off. Stay 
clear of fan blades.
 
     
        
        Page 422 of 506

421 Practical hints
Replacing wiper blades
Replacing wiper blades
Removing wiper blades
Remove SmartKey from starter switch 
(vehicles with KEYLESS-GO*: make 
sure the vehicle's on board electronics 
have status 0).
Fold the wiper arm forward.1Unlock
2Lock
Pull the tab in direction of arrow1 and 
remove windshield wiper.
Installing wiper blades
Slide the wiper blade into the cutout on 
the wiper arm (see arrows).
Slide the tab back in the direction of 
arrow2 until it audibly engages.
Fold the wiper arm backward to rest on 
the windshield. Make sure you hold on 
to the wiper when folding the wiper arm 
back.
Warning!
G
For safety reasons, switch off wipers and 
remove SmartKey from starter switch 
(vehicles with KEYLESS-GO*: make sure the 
vehicle's on-board electronics have 
status
0) before replacing a wiper blade. 
Otherwise, the wiper motor could suddenly 
turn on and cause injury.
!Never open the hood when the wiper 
arms are folded forward.
Hold on to the wiper when folding the 
wiper arm back. If released, the force 
of the impact from the tensioning 
spring could crack the windshield.
Do not allow the wiper arms to contact 
the windshield glass without a wiper 
blade inserted.
Make certain that the wiper blades are 
properly installed. Improperly installed 
wiper blades may cause windshield 
damage.
For your convenience, we recommend 
that you have this work carried out by 
an authorized Mercedes-Benz Center.