Mercedes-Benz 2009 CLK-Class Operator's Manual page 184

Controls in detail
Climate control system
Function
Q Increasing air volume
5
Á Temperature control, passenger side, raising
6
1 Rear window defroster
7
Air distribution, passenger side
8
e Charcoal filter
9
2 AC cooling on/off (USA only)
a
9 AC cooling on/off (Canada only)
9 Residual heat/ventilation (Canada only)
 Temperature control, passenger side, lowering
b
ß Decreasing air volume
c
 Temperature control, driver's side, lowering
d
, Air recirculation
e
182
Recommendation/Notes
i Set the temperature to 72‡ (22†).
i At very low temperatures, rear window defroster
operation is delayed until the vehicle interior has
warmed up.
i Switches on the air conditioning. The indicator lamp
in button 2 comes on.
i With the engine turned off, it is possible to continue
to heat or ventilate the interior.
i Set the temperature to 72‡ (22†).
i Set the temperature to 72‡ (22†).
i Only use this function for a short time, e.g. in a
tunnel. Otherwise, the windows can fog up due to lack
of fresh air.
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