Checking Air Conditioner Refrigeration Capacity - Audi A3 1997 Manual

Audi A3 1997 ➤
Heating, Air Conditioner - Edition 06.2000
- -> Remove bolt -A-.
- Detach connector -C-.
- Turn positioning motor downward in direction of arrow and remove from the shaft for fresh-air/recirculated-
air flap -B-.
Installation notes:
◆ New positioning motors are delivered in the "recirculated air" position. For ease of installation, prior to in‐
stallation connect the positioning motor to the vehicle electrical system and shift the operating lever in centre
position (at the same time, switch on the ignition and change the position of the positioning motor by actuating
the "recirculated air" button on the operating and display unit). In centre position the fresh/recirculated air
flap is not in the end stop position, and the positioning motor can be installed more easily.
◆ -> First insert positioning motor in the shaft of the fresh/recirculation air flap -B-, then rotate in direction of
arrow, ensuring that tab -D- sits correctly in slot -C-.
◆ Always perform self-diagnosis of air conditioner following installation (=>Page
◆ Fit the wiring harness so that it cannot come into contact with moving parts (e.g. the positioning motor lever).

7 - Checking air conditioner refrigeration capacity

7.1 - Checking air conditioner refrigeration capacity
Test requirements
◆ Radiator and condenser are both clean (clean if necessary).
◆ The ribbed belt is OK and properly tensioned.
◆ All air ducts, covers and seals are OK and correctly fitted.
◆ Air flow through dust and pollen filter is not impeded by dirt.
◆ The air conditioner is free of leaks (no secondary air drawn in at high fresh air blower speeds - air escapes
through vents only).
◆ Vehicle is not exposed to sunlight.
186
87 - Air conditioning
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