Page 121 of 329
118 Headlamp cleaning system
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Headlamp cleaning system
(optional on model CLK 430,
standard on model CLK 55 AMG)The switch is located in the center console.
The headlamp washer can be activated with the
electronic key in steering lock position 2.
Briefly press symbol side of switch.
P82.15-2007-26
Page 122 of 329
119 Combination switch
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Combination switch
1Low beam (exterior lamp switch position B)
2High beam (exterior lamp switch position B)3High beam flasher (high beam available
independent of exterior lamp switch position)
4Turn signals, right
5Turn signals, left
To signal minor directional changes, such as changing
lanes on a highway, move combination switch to the
point of resistance only and hold it there.
To operate the turn signals continuously, move the
combination switch past the point of resistance (up or
down). The switch is automatically canceled when the
steering wheel is turned to a large enough degree.
Turn signal failure
If one of the turn signals fails, the turn signal indicator
system f lashes and sounds at a faster than normal rate.
P54.25-2034-26
2
3
4
4
5
5
1
Page 123 of 329

120 Combination switch
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
6Control for windshield wiper/washer system:
Push briefly for single wipe without adding washer
fluid (use only when windshield is wet).
Push past detent and hold to activate wiper and
washer.
Notes:
The windshield washer reservoir, hoses and nozzles are
automatically heated.
See page 256 for re fill ing windshield wa sh er / h ead lamp
cleaning system.7Windshield wiper
0Wiper off
I Intermittent wiping
(vehicles with rain sensor: One initial wipe,
pauses between wipes are automatically
controlled by a rain sensor monitoring the
wetness of the windshield.)
Notes:
With switch in this position, one wipe occurs
when turning the electronic main key in steering
lock from position 0.
Vehicles with rain sensor:
Do not leave in inte rmittent se tting when vehicle
is taken to an automatic car wash or during
windshield cleaning. Wiper will operate in
presence of water spray at windshield, and wiper
may be damaged as a result.
II Normal wiper speed
III Fast wiper speed
P54.25-2033-26
6
7
Page 124 of 329

121 Hazard warning flasher
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Windshield wiper smears
If the windshield wiper smears the windshield, even
during rain, activate the washer system as often as
necessary. The f luid in the washer reservoir should be
mixed in the correct ratio, see page 256.
Blocked windshield wiper
If the windshield wiper becomes blocked (for example,
due to snow), switch off the wiper.
For safety reasons before removing ice or snow, remove
electronic key from steering lock. Remove blockage.
Activate combination switch again (electronic key in
steering lock position 1).Hazard warning flasher switch
The hazard warning f lasher can be activated with the
switch located in the dashboard.
To activate hazard warning flasher, press switch once.
To deactivate, press switch again.
Note:
With the hazard warning flasher activated, the
combination switch in position for either left or right
turn, and the electronic main key in steering lock
position 2, only the respective left or right side turn
signals will operate.
Page 125 of 329
122 Automatic climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Automatic climate control
P83.40-2156-29
1
3
36
2
4
*
*
Mercedes-Benz
D
O
L
B
Y
-S
T
E
R
E
O
5
Page 126 of 329

123 Automatic climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index 1Air volume control for center air outlets, turn wheel
up to open.
2Air volume control for side air outlet.
To open air outlets: Turn wheel to position i.
3Center air outlet, adjustable
4Side air outlet, adjustable
5Display and controls
The system is always at operational readiness, except
when manually switched off.
The automatic climate control only operates with the
engine running.The temperature selector should be left at the desired
temperature setting. The temperature selected is
reached as quickly as possible.
The system will not h eat or cool a ny quicker by setting a
higher or lower temperature.
The automatic climate control removes considerable
moisture from the air during operation in the cooling
mode. It is normal for water to drip on the ground
through ducts in the underbody.
The desired interior temperature can be selected
separately for the left and right side of the passenger
compartment.
Page 127 of 329
124 Automatic climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index
Display and controls
Press the desired button to activate, indicator lamp is on
while activated.
UAutomatic mode
fRaise temperature
gLower temperaturePDefrost
OAir recirculation
FRear window defroster
bAir distribution, manual
SEconomy mode
ïAir volume, manual
TResidual engine heat utilization
Basic setting - automatic mode
Press left and right U button for automatic mode.
Simultaneously press both f and g buttons for
temperature setting of 72°F.
QAir volume and distribution are controlled
automatically.
This setting can be used all year around.
0
MAX
Page 128 of 329

125 Automatic climate control
Te ch n ica l
data Instruments
and controlsOperationDrivingInstrument
cluster displayPractical hints Car care Index Economy
The function of this setting corresponds to the
automatic mode. However, because the air conditioning
compressor will not engage (fuel savings), it is not
possible to air condition in this setting.
Press S button to activate.
Press S button once again to return to previous
setting.
Special settings (use only for short duration)
Defogging windows
Switch off O button.
Press left and right U buttons.
Press button b repeatedly until air is directed
upward.
UTurn wheels (2) to position i to open left and right
side air outlets (4). Adjust side air outlets upward.Defrosting
Turn wheels (2) to position i to open left and right
side air outlets (4). Adjust side air outlets upward.
Press P button. Maximum heated and automatically
controlled amount of air is directed to the windshield
and side windows.
PPress P button once again to return to previous
setting.