Mercedes-Benz E-class 1997 Special Settings - Manual (Page 2)

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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 button.
To cancel, press 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
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 20 minutes.
Dust Filter
Nearly all dust particles and pollen are
filtered out before outside air enters the
passenger compartment through the air
distribution system.
Note:
Do not obstruct the air flow by keeping
the air intake grille in front of
windshield free of snow and debris.
Also keep the air intake grille in front of
windshield free of snow and debris.
Activated Charcoal Filter
To select, press button.
To cancel, press button again.
An activated charcoal filter markedly
reduces bad odors and re moves
pollutants from the air entering the
passenger compartment.
The blower speed is slightly increased
to supply a contant volume of air.
The system switches automatically to
the air recirculation mode, if the carbon
monoxide (CO) or nitric oxide (NO of
the outside air increases.
When pressing button or ‚
the filter is also switched oft.
Notes:
The automatic air recirculation does not
function when selecting the Economy
mode ‚ or the outside temperature
is below
45°F (7°C).
The activated charcoal filter should be
switched oft when windows fog up on
the inside, or if the passenger
compartment needs to be quickly heated
or cooled down.