Audi A3 1997 Manual page 107

=> Parts List
- For vehicles up to and including model year 2000.
- For vehicles as of model year 2001 (with switch for heated rear window).
- For vehicles without or with map-controlled engine cooling.
◆ The illumination of the rotary control is with a bulb in the type which was installed up to and including model
year 2000 (at start of production). Later, the lighting was changed to LEDs. These can no longer be replaced.
◆ -> To ensure misted windows are demisted as quickly as possible, recirculated air mode is not possible with
"air distribution to windscreen". The control unit switches off the air recirculation mode approx. 15° before
the rotary switch for air distribution -C- reaches its final position (air to windscreen) and the switch-on telltale
in switch -B- goes out. If the rotary switch is turned back again, the heating remains in fresh air mode (this
applies to all heater control designs).
◆ The rotary switches and switches on the heater control are illuminated via terminals 58s and 58d.
=> Current Flow Diagrams, Electrical Fault-Finding and Fitting Locations
Notes on the type which are installed into vehicles as of model year 2001:
◆ -> In vehicles as of model year 2001 a heater control is installed in which the switch for the heated rear
window -A- is installed.
Note the following:
- In these vehicles, the heated rear window is switched on via a relay which is controlled by the control
unit installed in the heater control.
=> Current Flow Diagrams, Electrical Fault-Finding and Fitting Locations
Heating, Air Conditioner - Edition 06.2000
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permitted unless authorised by AUDI AG. AUDI AG does not guarantee or accept any liability
with respect to the correctness of information in this document. Copyright by AUDI AG.
Audi A3 1997 ➤
1.10 - Removing and installing heater control
101