1998 AUDI A4 instrument panel

87-163

Remove heater/air conditioner assembly complete
with instrument panel Repair Manual, Body
Interior, Repair Group 70

Note:
The instrument panel must only be placed on a
clean, covered workbench to avoid damaging the
top cover.
- Remove footwell air outlet page 87
-134
.
- Disconnect all electrical connections between
instrument panel and heater/air conditioner
assembly.

Notes: - Remove all screws/bolts between instrument
panel mounting and heater/air conditioner
assembly.
- Separate Instrument cluster from heater/air
conditioner assembly.
- Install in reverse order of removal noting the
following.

Before removing screws/bolts, mark installation
position.
All cable ties removed in order to separate the
instrument panel from the heater/air
conditioner assembly must be re-attached at
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p://127.0.0.1:8080/audi/servlet/Dis
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87-164

Notes:

When re-installing instrument panel and
heater/air conditioner assembly, ensure the A/C
system vacuum supply hose with heater core
fixture, and low pressure switch electrical
connector and evaporator fixture are inserted
together through the plenum chamber
openings.
Ensure evaporator drain is correctly positioned
page 87
-169
.

Connect coolant hoses correctly:
Ensure boot -C- is correctly installed.Hose -A-: return flow to water pump (with vent hole).Hose -B-: supply from cylinder head.

Replace refrigerant line O-rings -A- and -B-.Evaporator refrigerant line fixture bolt tightening torque: 15 Nm (11 ft
lb). Ensure boot -D- and wiring to low pressure switch are correctly
located and secured when installing.
Pa
ge 15 of 24 Heatin
g and ventilation s
ystem, servicin
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11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
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e=re
pair&id=AUDI.B5.HA01.87.22

87-167


Remove glovebox Repair Manual, Body Interior, Repair Group 70

Remove driver side under-dash panel, center console and instrument
panel outer skin Repair Manual, Body Interior, Repair Group 70
- Plug evaporator openings using cap supplied with replacement
evaporator -C-.
- Remove bulkhead grommet -D-.

- Remove instrument panel support -A-.
- Loosen instrument panel support -B- (the upper mounting bolt to the
heater/air conditioning assembly can not be removed).
- Remove floor outlet page 87
-134
.
Pa
ge 20 of 24 Heatin
g and ventilation s
ystem, servicin
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11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.HA01.87.22

87-168


- Remove bolts -A-.
- Disconnect all electrical connections from instrument panel harness to
heater/air conditioner assembly.

Notes on installation: - Remove bolts -A-.
- Remove heater/air conditioner assembly towards passenger side.
- Install in reverse order of removal.
Replace all damaged heater/air conditioner assembly seals.Replace all removed cable tie wraps in the same location.Always replace evaporator inlet/outlet O-rings.Ensure refrigerant lines fit into evaporator without binding.Check evaporator line and heater core bulkhead grommets for correct
fit. Check evaporator drain and evaporator drain valve for correct fit (1996
page 87
-169
; 1997 page 87
-171
).
Pa
ge 21 of 24 Heatin
g and ventilation s
ystem, servicin
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11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.HA01.87.22