Audi A3 1997 Manual page 12

Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
- WSC XXXXX:
Notes:
◆ Depending on the coding, the displayed vehicle type is A3 or A4 (up to index "E"). A4 is always displayed
for newly installed operating and display units that have not yet been encoded =>Page
◆ For vehicles with map-controlled cooling (for 1.6 l engine to be gradually introduced as from model year
1999):
- The codes for the operating and display unit -E87 are different to those for vehicles without map-controlled
cooling.
- A centre vent temperature sender -G191 is also installed (in air duct for "centre" dash panel vent).
- The -E87 must be adjusted to the other set-up for the engine cooling via a different code (the refrigerant
temperature is controlled by the engine control unit according to the engine load and is higher when the
engine is running at part throttle in comparison to full throttle).
◆
8L0 820 043 H A3
cond. DXX
Code XXXXX WSC ZZZZZ
-> Only an operating and display unit -E87 with part number 8L0 820 043 as of index "H" can be installed
in vehicles with map-controlled cooling, as the map-controlled cooling coding is only recognised as of this
index. As indices "H", "J", "K" and "L" are already allocated to a modified version of -E87 (use in series
production as of model years 2001), operating and display units with part number 8L0 820 043 and indexes
"M" (or "N" for Japan) will be installed until production has been reorganised.
◆ The codes for the operating and control unit -E87 vary from the versions with part number 8L0 820 043 up
to index "E", indices "M" and "N", indices "H", "J", "K" and "L" and as of index "O".
◆ As of model year 2000, the assignment of the ignition key is conveyed by the dash panel insert (data tele-
gram) together with the refrigerant temperature (when ignition is switched on). This information can only be
processed by operating and display unit -E87 with part number 8L0 820 043 as of index "H". As the indices
"H", "J", "K" and "L" are already allocated to a modified version of -E87 (use in series production for model
years 2001), operating and display units with part number 8L0 820 043 and indices "M" (or "N" for Japan)
will be installed until production has been reorganised.
=> Electrical System; Repair group 01
=> Parts List
◆ Control unit identification 8L0 820 043 X A3 or A4 Fully automatic air conditioner (depending on the code,
assignment=> Parts List).
=> Parts List
◆ Coding XXXXX =>Page
◆ WSC ZZZZZ is the workshop code for V.A.G 1551 that was used to perform the previous encoding.
◆ DXX designates the software version of operating and display unit -E87 and has no relevance for customer
service.
List of functions
01 - Interrogate control unit version
02 - Interrogate fault memory
03 - Final control diagnosis
04 - Basic setting
05 - Erase fault memory
06 - End output
07 - Encoding control unit
08 - Reading measured value block
Only the functions listed above can be used for the self-diagnosis of the electronic climate/heating control.
6
01 - Self-diagnosis, Electrical check
Workshop Code for the V.A.G
1551 which was used to per-
form the last encoding
Fully aut. air
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with respect to the correctness of information in this document. Copyright by AUDI AG.
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