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Home >> Volkswagen >> 1996 >> Passat GLS, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 6 (A/C-Heater System - Manual) >> Testing >> A/C System Performance
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A/C System Performance

WARNING: This page is about a different car, the 1997 Volkswagen Passat. However, it is still accessible from the selected car via links, so may be relevant.
  1. Park vehicle out of direct sunlight. Start and operate engine at 1500 RPM. Set A/C controls to outside air, panel (vent) mode, full cold, and maximum A/C.
  2. Set blower/fan on high speed, and open windows. Operate system for 6-7 minutes to allow system to stabilize. Insert thermometer in center vent, and measure temperature. Temperature at center vent must be 19-40°F (-7 to 4°C), with high side and low side pressures within specification. See A/C SYSTEM SPECIFICATIONS  at beginning of article.
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