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with respect to the correctness of information in this document. Copyright by AUDI AG.
◆ The resistance of potentiometer -G267 is approx. 1000 ohms between contacts 3 and 5 and between 100
and 900 ohms between contacts 4 and 3 / 5 (depending on rotary switch setting).
◆ -> The rotary switch setting is transmitted to the engine control unit via potentiometer -G267 (contacts 3, 4
and 5). This setting affects the characteristic curve in the engine control unit for actuation of the thermostat
-F265 for map-controlled cooling (e.g. if the engine is running at part throttle, the refrigerant temperature is
controlled such that the temperature of the air emanating from the vents when the heater is in operation
(rotary temperature switch set to heat) does not exceed that in vehicles without map-controlled cooling).
- A refrigerant thermostat is installed in vehicles with map-controlled cooling; an additional electrical actuator
is integrated in this thermostat. This actuator (thermostat -F265 for map-controlled engine cooling) is actu‐
ated by the engine control unit according to the current engine load and the rotary temperature switch setting.
=> Relevant Workshop Manual Injection and Ignition system
=> Relevant Workshop Manual Automatic Gearbox, Repair group 13
- Actuation of thermostat -F265 alters the refrigerant temperature (the refrigerant thermostat opens at a higher
temperature when the engine is running at part throttle in comparison to full engine throttle).
Removing
- Remove radio.
=> Electrical System; Repair group 91; Repairing radio; Removing and installing radio Repairing radio Remov‐
ing and installing radio
- Remove panel for dash panel centre section -A-.
=> General Body Repairs Interior; Repair group 68; Shelves and trays/covers; Removing and installing front
part of centre console Shelves and trays/covers Removing and installing front part of centre console
- -> Remove screws -B-.
- Removing centre section of dash panel:
Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
1.10 - Removing and installing heater control 103
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