Removing and installing operating unit (air conditioning system control unit J301) - manually controlled air conditioner — AUDI

Removing and installing operating unit (
air conditioning system control unit
J301
) - manually controlled air conditioner
Note
The text on the button for switching the air conditioner on and off on the operating unit (
air conditioning system control unit
J301
) varies. Depending on the production period, the text on the button will read
AC
or
A/C
Chapter
and
Electronic parts catalogue
.
There are different versions of the operating unit
J301
(with different part numbers). Components with part number
“8X0 820 045”
are installed e.g. in vehicles with type codes
“8XA”
and
“8X1”
in the vehicle identification number. Components with part number
“8XA 820 045”
are installed e.g. in vehicles with type codes
“8XF”
and
“8XK”
in the vehicle identification number
Electronic parts catalogue
.
Removing
Observe general notes
Chapter
.
Remove dash panel trim (driver side)
General body repairs, interior
Rep. gr.
68
Shelves / trim panels; Removing and installing dash panel trim (driver side)
.
If fitted, detach insulation
1
.
Remove glove box
General body repairs, interior
Rep. gr.
68
Shelves / trim panels; Removing and installing glove box
.
If fitted, unfasten cover
1
from velcro strip.
Remove mounting for switch unit (bottom)
Electrical system
Rep. gr.
96
Controls; Removing and installing switches in dash panel
.
Detach trim
1
for operating unit (
air conditioning system control unit
J301
)
arrows
.
Remove bolts
2 and 3
.
Set rotary temperature control to
“cold”
stop.
Press retaining tab
arrow
and detach flexible shaft
2
from gear mechanism for temperature flap
1
.
Set rotary control for direction of air flow to
“windscreen/footwell”
position.
Press retaining tab
arrow
and detach flexible shaft
1
from gear mechanism for air distribution
2
.
Carefully release fasteners
arrows
and pull heater controls
2
out of frame
1
.
Press retainer
3
arrow A
and detach flexible shaft
4
from controls
5
arrow B
.
Unplug electrical connectors
1, 2
.
Detach operating unit (
air conditioning system control unit
J301
).
Installing
Install in reverse order of removal; note the following:
It is important to observe the correct version and assignment
Electronic parts catalogue
.
Tighten bolts
2 and 3
to 1.5 Nm.
Install flexible shafts
Chapter
.
Check operation of temperature flap.
The temperature flap must move audibly from one stop to the other.
Rotary control must move from
“cold”
to
“warm”
position.
If rotary control cannot be moved from
“cold”
to
“warm”
position, detach flexible shaft, turn rotary control and re-attach flexible shaft.
Check operation of air distribution flaps.
The air distribution flaps must be set to the same positions as the rotary control on heater/air conditioner.
Check corresponding vents by hand.
If flap positions do not correspond to rotary control for heater/air conditioner, detach flexible shaft, turn rotary control and re-attach flexible shaft.