Volkswagen Passat 1995 Official Factory Repair Manual page 4204

A/C refrigerant system, troubleshooting
Test 1
Temperature from
1)
center air vent
Normal
Too high
Too high
Normal
Normal
Too high
Normal
1)
Normal air outlet temperature approx. 6 C (43 F). For higher ambient temperatures and/or higher
humidity, specified air temperature from center instrument panel vent can be slightly higher.
2)
For normal system temperatures and pressures
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Test 2 Test 3
High Low
2)
pressure pressure
Normal Normal
Normal Normal
Too low Normal
Too low Normal
Normal Too high or
too low
Normal Too high or
too low
Too high or Too high or
too low too low
Possible causes of
incorrect readings
2)
None
Temperature flap
position incorrect
Compressor
Compressor
Expansion valve or
compressor
Page 87-93 .
Page 7 of 10
Corrective measures
---
Adjust temperature flap
cable
Replace compressor
Replace compressor
Clean/replace expansion
valve or replace
compressor
12/7/2004
87-110