Removing and installing heater controls with heater control unit J65 — AUDI

Removing and installing heater controls with
heater control unit
J65
Note
Different versions depending on production period and vehicle identification number (differences in pin assignment and functions of
J65
)
Electronic parts catalogue
J65
is available without a self-diagnosis option (part number
“8X0 045 045”
) for vehicles with type codes
“8XA”
and
“8X1”
in the vehicle identification number.
J65
is available with a self-diagnosis option (part number
“8XA 045 045”
) for vehicles with type codes
“8XF”
and
“8XK”
in the vehicle identification number
Vehicle diagnostic tester
,
Electronic parts catalogue
and
Current flow diagrams, Electrical fault finding and Fitting locations
.
Removing
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 heater controls
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
.
Note
Flexible shaft rotates twice if rotary heater control is turned once.
Unplug electrical connectors
1, 2
.
Detach heater controls.
Installing
Install in reverse order of removal; note the following:
For correct part number and assignment refer to
Chapter
and
Electronic parts catalogue
.
Tighten bolts
2 and 3
to 1.5 Nm.
Install flexible shafts: temperature flap
Chapter
, air distribution
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.