light AUDI A4 2000 B5 / 1.G Climate Control Components In Passenger Compartment Workshop Manual

87-121

Notes:

If both display fields do not light up with ignition
switched on, check coding of -E87- and conduct
electrical tests if necessary page 01
-135
.

For m.y. 1997, the illumination of the display
field and the operating button is via light
emitting diode (LED), and can not be replaced.
Always refer to parts information for correct
control head versions.
Control heads with part number 8D0 820 043
should only be installed in vehicles through m.y.
1996.
Control heads with part number 8L0 820 043
should only be installed in vehicles beginning
m.y. 1997.
A/C control head -E87- with Part No. 8D0 820
043 can only be installed in vehicles up to and
including m.y. 1996.
8L0 820 043B A4-
A/C fully automatic DXX
Codin
g XXXXX
WSC ZZZZZ

M.y. 1997 vehicles can only have A/C control head -E87- with the Part
No. 8L0 820 043 up to and including Part No. index letter "C." For m.y. 1998 the harness connector to A/C control head -E87- has
Pa
ge 3 of 34 Climate control com
ponents in
passen
ger com
partment, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.HA01.87.21

87-122

Notes:

If both display fields of A/C control head -E87-
(Part No. 8L0 820 043 beginning with Part No.
index letter "D") are not illuminated when the
ignition is switched on, check the voltage supply
from terminal 58d (dimmer) to A/C control head
-E87- page 01
-115
(Electrical test).

If the buttons for A/C control head -E87- (Part
No. 8L0 820 043 beginning at Part No. index
letter "D") do not light up when the light is
switched on, check the voltage supply from
terminal 58s (illumination) to A/C control head -
E87- page 01
-115
(Electrical test).

If an A/C control head -E87- with the Part No.
8L0 820 043 beginning with Part No. index
letter "D"is installed in a 1997 m.y. vehicle, the
brightness in the switch cannot be changed
page 01
-115
(Electrical test).

If an A/C control head -E87- with Part No. 8L0
820 043 including Part No. index letter "C" is
installed in a 1998 m.y. vehicle, the brightness
in the switch cannot be changed page 01
-
115
(Electrical test).
Pa
ge 5 of 34 Climate control com
ponents in
passen
ger com
partment, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.HA01.87.21

87-129

Fresh air blower (V2), removing and
installing (1996)

Remove glovebox, glovebox mounting and
mounting for passenger airbag
Repair Manual, Body Interior, Repair Group
70


Notes: - Remove 4 screws -A- and remove fresh air blower from heater/air
conditioner assembly.
- Install in reverse order of removal.
The fresh air blower must be turned slightly to allow removal from
heater/air conditioner assembly. Testing V2, output Diagnostic Test Mode (DTM) page 01
-42
.
Electrical test page 01
-115
.
Pa
ge 13 of 34 Climate control com
ponents in
passen
ger com
partment, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.HA01.87.21

87-144

Sunlight photo sensor -G107-, removing
and installing


Note:
Testing -G107- page 01
-63
. - Carefully pry off cover -A-.
- Remove screw -B-.
- Remove sensor.
- Separate electrical connection.
- Install in reverse order of removal.
Pa
ge 28 of 34 Climate control com
ponents in
passen
ger com
partment, servicin
g
11/21/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.HA01.87.21