Mercedes-Benz 2001 E-Class - Manual (Page 135)

132 Automatic climate control
Technical
data
Instruments
and controls
Operation Driving
Instrument
cluster display
Practical hints Car care Index
Activated charcoal filter
An activated charcoal filter markedly reduces bad odors
and removes pollutants from the air entering the
passenger compartment.
To select, press e button.
To cancel, press e button again.
The blower speed is slightly increased to supply a
constant volume of air.
The system switches automatically to the air
recirculation mode, if the carbon monoxide (CO) or
nitric oxide (NO
X
) of the outside air increases beyond a
predetermined level.
When pressing button P or S, the filter is also
switched off.
Notes:
The automatic air recirculation does not function when
selecting the Economy mode
S, or the outside
temperature is below 45
°
F (7
°
C).
The activated charcoal filter should be switched off
when windows fog up on the inside, or if the passenger
compartment needs to be quickly heated or cooled
down.
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. Close air outlet in rear passenger
compartment.
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 approximately 30 minutes,
• if the battery voltage drops.