Mercedes-Benz 300TD 1980 Owner's Manual page 31

123 t
Table of Contents

Advertisement

4 " AUTO-HI" button:
Fast heating or cooling of
vehicle interior.
Air conditioning, air distribution
and blower control are the
same as in position " 3"
" AUTO-LO" . The blower, how­
ever, operates at a higher
speed.
5 " BI-LEVEL" button:
For fogged-up windows.
During heating and cooling
operations air is channelled to
the windshield and to the foot-
well. During the cooling opera­
tion air also enters via the
center swivelling outlets 8.
The vehicle interior is cooled
practically free of draft with
more air being blown into the
footwell. The blower then
operates at a higher speed
than " AUTO-LO" .
We recommend this position
at low ambient temperatures.
6 " DEF" button:
For iced-up windows.
Independent of the position of
the temperature selector
wheel air heated to maximum
temperature is channelled to
the windshield.
For the side windows, open
swivelling outlets 9.
7
Refrigerant compressor switch:
Switching the air conditioning
compressor on and off.
The compressor can be
switched off completely in the
positions " AUTO-LO" and
" AUTO-HI" , e.g. if no cooling
is required because of low
ambient temperatures (fuel
economy).
Fresh air is supplied to the foot-
well if the refrigerant compressor
is switched off while the system
is working in the cooling mode.
Autom atic Climate Control
Fresh air enters the vehicle through
the openings in front of the wind­
shield (keep free of snow) and is
emitted through the ventilation open­
ings in the cargo space if the windows
are closed.
Important!
In order to keep the air condition­
ing section of the climate control
system in good working condition
at all times, it is necessary to
operate the A/C compressor
briefly at least once a month even
during the seasons it is normally not
required. Switch compressor
switch to " ON" and depress
" AUTO-LO" or " AUTO-HI"
button. Make sure that the ambient
temperature is above 2° C / 36° F
since the A/C compressor will not
operate below this temperature.

Advertisement

Table of Contents
loading

Table of Contents