Air Recirculation; Residual Engine Heat Utilization - Mercedes-Benz CLK 320 Operator's Manual

Air recirculation

This mode can be selected to temporarily reduce the
entry of annoying odors or dust into the vehicle's
interior.
Outside air is not supplied to the vehicle's interior.
To select, press O button.
To cancel, press O button again.
The system will automatically switch from recirculated
air to fresh air
• after approx. 5 minutes at outside temperatures
below approx. 40 ° F (5 ° C),
• after approx. 30 minutes at outside temperatures
above approx. 40 ° F (5 ° C),
• after approx. 5 minutes, if button S is pressed.
If the windows should fog up from the inside, switch
from recirculated air back to fresh air.
At high outside temperatures, the system automatically
engages the recirculated air mode thereby increasing
the cooling capacity performance, switching to partially
fresh air within 30 minutes.
Automatic climate control
Instruments
Operation
and controls
Instrument
Driving
cluster display

Residual engine heat utilization

With the engine switched off, it is possible to continue
heating the interior for a short while.
Air volume and distribution are controlled
automatically.
To select:
Turn electronic key in steering lock to position 1 or 0 or
remove key.
Press T button
This function selection will not activate if the battery
charge level is insufficient.
To cancel:
Press T button.
The system will automatically shut off
• if you turn electronic key in steering lock to
position 2,
• after approx. 30 minutes,
• if the battery voltage drops.
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