Mercedes-Benz 2000 SL-Class - Manual (Page 100)

96 Automatic climate control
Technical
data
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
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 car’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.
Notes:
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 20 minutes.
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 electronic 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.