Mercedes-Benz 380 SL Owner's Manual page 25

The automatic climate control is
designed to maintain the desired
temperature in the vehicle interior.
Heating, cooling and air distribution
(top, center, bottom) are controlled
automatically. The blower speeds
will be varied automatically
depending on the push button set­
ting, operating and temperature
conditions.
The automatic climate control is
operational only if the engine is
running.
For adaptation to the weather con­
ditions various functions can be
selected with the pushbuttons. Air
outlets 8 - 9 must then be adjusted
as required. Buttons 2 - 6 can be
pressed only individually. The indi­
cator lamps in the individual but­
tons come on if the buttons are
pressed and the vehicle lamps are
switched on.
1 Temperature selector wheel
The desired temperature in the
vehicle interior can be set with
the selector wheel.
Normally only one adjustment is
necessary for the entire year. If
required to be altered, only
slight adjustments should be
made to this temperature setting.
2 "OFF" button:
Switching off the automatic
climate control.
Simultaneously the fresh air
supply to the vehicle interior is
cut off. This position can be
briefly selected in the case of
odorous or dust annoyances or
when passing through an auto­
matic car wash.
3 "AUTO-LO" button:
Normal vehicle operation.
This setting will provide heating
or cooling of the vehicle's inte­
rior depending on the selector
wheel setting and the outside
temperature. If heating is re­
quired, the fresh air supply and
the blower will remain in the off
position until the engine cooling
water is slightly warmed up.
Automatic Climate Control
Only then will warm air enter the
interior of the vehicle and be
distributed mainly to the footwell
outlets. A small amount of air is
directed to the windshield to
ensure defogging under normal
weather conditions. For the
defogging of the side windows,
air can be diverted from the
side outlets 9 depending on the
position of levers 10. The center
outlets 8 remain closed during
heating operation.
If cooling of the interior is re­
quired, the blower will start
immediately regardless of
engine temperature. The air is
routed via center outlets 8 into
the vehicle's interior and addi­
tionally via the side outlets 9
depending on the position of
lever 10. No air is allowed to
flow to the windshield and to
the footwell. The blower speed
will be automatically reduced in
several steps in the heating or
cooling cycle as the interior
temperature approaches the
preselected temperature on the
temperature wheel 1.