Mercedes-Benz 560 SL 1986 Owner's Manual page 24

@ Economy setting - Ventilation
0 Normal setting - Cooling
@ Economy setting - Heating
^ Normal setting - Heating
^ EC (ECONOMY) = Economical setting; the air
conditioning compressor remains off.
In any other setting, the air conditioning compressor
comes on with ambient temperatures above +2° C
(+36° F).
As a fuel saving measure, we recommend this setting
be used with cool outside temperatures, so that the
air conditioning compressor remains off.
In the ventilation mode, air is emitted from outlets (5)
and (7).
In the heating mode, warm air is primarily supplied to
the foot area. In addition, warm air is also supplied to
the ducts in the doors. Only enough warm air is sup­
plied to the windshield and air outlets (7), to keep the
glass defogged in normal weather conditions. In the
heating mode, air will be emitted periodically from
outlets (5), depending on the interior temperature.
With low outside temperatures, fan operation is can­
celled until the engine coolant starts to warm up.
@ Normal Setting
We recommend this setting with humid and warm
outside conditions.
The setting ^ corresponds with setting @ but, in
addition, the air can also be cooled as necessary.