Mercedes-Benz 240 D 1979 Owner's Manual page 27

H eating and V e n tilatio n
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1 Air volum e control knob
S w itch on by turning clock­
wise. The air volum e is then in­
creased up to the stop. The
3-speed blow er cuts in as of
scale mark "I".
In case o f dust and fum e annoy­
ance from outside, the air
supply to the vehicle can be cut
o ff (by turning knob counter­
clockw ise to the stop).
To heat and ventilate the
parked vehicle, or if an in­
26
sufficient volume o f air is avail­
able during the ride, move air
volum e control knob at least
to blow er speed I. For fast
touring w e recommend you to
engage blow er speed I, fo r
city tra ffic speed II.
2 Heater knob, left vehicle side
3 Heater knob, right vehicle side
S w itch on heater by turning to
the right. Heating pow er is then
increased up to the stop.
C ontrol air volum e w ith knob 1.
4 A ir distribution lever
Lever to the left = air to w in d ­
shield
Lever in center position = air
to windshield and to fro n t and
rear footw ells
Lever to the right = air to
fro n t and rear fo otw e lls and a
m inor volume o f air to the
windshield
5 Lever fo r nonheated fresh air
Lever to the left = open
Lever to the right = closed
8820
6 Sw ivelling outlets fo r non­
heated fresh air
7 Swivelling outlets fo r side ve nti­
lation
Turn right = open
Turn left = closed
Fresh air enters the vehicle through
the openings in fro n t o f the w in d ­
shield (keep free o f snow) and is
em itted through the ventilation
openings below the rear w ind ow
if the side w indow s are closed.
Do not cover up ventilation
openings w ith clothes etc.