Page 121
3,Rermove the cover belaw the switches
on the steering calumn.
4, Remove lhe lower section of Lhe panel.
Remove the locking screw for the upper
joint of the intermediate shaft in the
steering assembly.
&.Unhook the brake and clutch pedal
return springs.
7.Unplug the connecters for the inskru-
mont panel.
B.Remove the speaker/defroster grilles
and Unde the serews in the upper sec-
tion of the panel.
853—3
Page 122
9.Disconnect the speedometer calle fram
the speedometer.
10.Disconnect the lead from the right-
hand door switeh and pull the lead into
the passenger compartment.
ll. Remove the panel member retaining
bolts.
les 12.Disconnect the vacuum hose connec
lions to the heater housing. located
beneath the heater system air filter in
the engine compartment. Lift the en
tire panel unit out of the car.
Refit in the reverse order.
853—4
Page 123
st
aa me
>
Tightening torque
Panel member retaining bolts
40-54 Nim (4.0-5.4 kpm)
Switch panel
Removal and installation
Disconnect Lhe positive battery lead. Re-
move the steering wheel. Remove Lhe four
panel screws. Tilt the panel back and dis-
connect the electrical connections, and the
hose connections at the Vacuum = cistri-
bulor. Lift out the panel.
Install] in the reverse order.
Note
lhe lengths of the four switch pane! |
rekaining screws are differents For
easy identification, the screws have
, grooves in them, as shown below,
WS
DAS) SESY
ii
I S 7584
4
od
wie. 3
Switch panel:serews
Length of screws
. TFGmm (he ind}
205mm. (8.07 tn)
210mm. (8.27 tn)
&, 1B9 mm (7.44 in)
wWio—-
> gee ee aco)
Removing the vacuum distributor
853-5
Page 124
Upper section of instrument panel
Removal and installation
Discannect the positive battery lead, Re-
move the switeh punel, Remove the two
speaker/defroster grilles, Unda the retain-
ing serews at the windshield. Unda Lhe
serews under the glove campartment, Lift
out the panel.
Install in the reverse order.
853-6
Page 125
Heating and ventilation system,
air conditioning
General
Air is drawn in through the air inteke on
the right of the hood by the heater fan or
ram effect caused by the motion of the
car. The air passes through a powerful
filter which separates out particles of dust
anc dirt. Tt then passes through the fan
casing and heat exchanger, after which it
is directed through various ducts to diffe.
tent outlets in the instrurnent panel and
floor area. Air from the pagsenger coam-
partment is evacuated through special evac
cuation boxes in the luggage compartment.
TS
Air flow, heating and ventilation systen)
854-1
Page 126
Functional description
The heating system operates as follows.
1.Vacuum-controlled valve operation
directs air through the system.
2. Thermostatically controlled, manually
operated water valve, regulating flow
of water through heater unit.
3. Switch for regulation of fan speed.
The fan switch has three positions to select
three fani speeds. The switch has no "off"
position and current will always be fed to
the fan unless the air distributian control is
set to "0", when the circuit to the fan will
be broken, regardless of the position of the
fan switch.
These functions are controlled by micra-
switches, actuated by the vacuum distribu-
tor.
Functional description
1. Air intake
2. Filter
3. Fan moter
4. Heat exchanger
5. Water valve
6. Vacuum distributor (Air distribution
control)
7. Vacuum serva, single-stage
8. Vacuum servo, two-stage
9, VYacuum-controlled air shutters
854-2
Positions <> and <> on the distri-
bution contro) (vacuum distributer) are in-
tended for the air conditioning unit, which
ean be incorporated in the ordinary heating
and ventilation system. In cars not equip-
ped with air conditioning, these positions
are used when the admission of fresh air
only is required.
As fram 1984 model cars with air condi-
tioning, a manually controlled air recircu-
lation facility is provided. The sir recircu-
lation system will operate automaticly
when the air suppiy control is in position
"0,07 <Soo>
Note
The air recirculation system should
not be used in cold weather as this
may cause ice or mist to form on the
windshield and windows,
Page 127
Apart from air to the central panel outlet,
all air passes through the heat exchanger,
The panel outlets can be closed and opened
individually, and, consequently, if the cen-
tral panel outlet is shut, all air entering
the car can be heated. In cars with air
conditioning, the temperature control is
used to regulate the temperature of the
incoming cooled air. The outer defroster
nozzles for the side windows cannot be
closed,
l. Fan switch
2. Temperature control
3, Airsupplycontrol(vacuumdistributor)
4. Air recirculation switch
5. ON/OFF switch, air conditioning
6. Central panel vents
7. Shutter control
8. Side window defroster
9. Shutter control, outer panel vent
10. Outer panel vent.
The flow of air through the system: fune-
tions operative at different settings of the
air distribution control
Position (0)
No current to fan motor, All air valves
closed, although leakage of air will occur
through defroster and outer pane! vents.
As from 1984 models, all vents closed in
cars with air conditioning,
Only defroster servo activated.
All air valves closed,
854-3
Page 128
Position <at> Fresh air (AC max)
Current to fan motor, high speed.
No regulation of fan speed possible.
Air valves to floor and outer and central
(panel vents, open. — a”
Vacuum servos 1, 5 and 7 opetative (7: first
stage). Cars with air conditioning: vacuum
servo 7 not operating.
Defroster vent closed but leakage of air
through vent. Cars with air conditioning:
compressor running. 1979 and 1980 models:
Floor vents closed,
Vents 2 and 6 open and 8 and 9 partially
open,
Cars with air conditioning: vents 8 and 9
closed,
Position <=>
Fresh air (AC fresh)
Current to fan motor. Regulation of fan
speed possible.
Valves for outer and central panel vents
open.
Valves for floor area partially open.
Vacuum servos 1, 5 and 7 operative (7: first
stage). Cars with air conditioning: vacuum
servo 7 not operating.
854-4
Defroster vent closed but leakage of air
through vent. Cars with air conditioning:
compressor running. 1979 and 1980 models:
Floor vents closed. Air recirculation.
Vents 2, 6, 8 and 9 open (8 and 9 partially
open). Cars with air conditioning: vents 8
and 9 closed.
Page 129
Position y Ventilation Defroster and outer panel vents closed but
Current to fan motor. Regulation of fan leakage past valves,
speed possible.
Air valves to floor and central panel vents
open.
Vacuum servos 5 and 7 operative Air valves 6, 8 and 9 open
7 in the first stage 9 (8 and 9 partially open)
Position VY Floor Defroster, outer and central panel vents
Current to fan motor. Requlation of fan closed, leakage of air past defroster and
speed possible. outer panel vent valves.
Air valves to floor open.
Air valves 8 and 9 wide open
Vacuum servo 7 operative
(second stage)
Page 130
Position ws Comfort Defroster valves open, Floor, outer and
Current to fan motor. Regulation of fan central panel vents closed, but air leakage
speed possible. past outer panel vent valves
Vacuum servos 3 and 7 operative Air valves 4, 8 and 9 open
(7 second stage) (8 and 9 wide open)
Position wy Defroster Defroster valves open. Floor, outer and
Current to fan motor. Regulation of fan central panel vents closed, but leakage
speed possible. past outer panel vent valves.
F Cars with air conditioning model 1979-80:
Compressor running.
Vacuum servo 3 operative ae Air valves 4 open
854—6