A/C System - Flush Procedure if A/C Compressor Seized
84VW1Applies To Rabbit, Jetta ( Diesel )
All years
Group
87
Subject
A/C Compressor
Part Identifier 8734
Key Points
Flush A/C system if A/C compressor has seized
C
Number
84-04
October 8, 1984
If A/C compressor has seized during operation, the refrigerant system must be flushed to remove contaminants before installing new compressor.
WARNING
Always wear safety goggles when charging or discharging system. Be sure work area is well ventilated. Refrigerant-12 is heavier than air and can accumulate in areas of poor air circulation.
Avoid inhaling fumes when using flame type leak detector. Refrigerant-12 becomes poisonous gas after coming into contact with open flame
CAUTION
Always discharge refrigerant from air conditioner system before loosening connections, hoses, etc.
Work sequence
- discharge A/C refrigerant system
- remove A/C compressor
- remove expansion valve and inspect for contamination
- flush refrigerant system with refrigerant R-11 using 5 times system charge capacity (approx. 165.0 oz)
Note
Refrigerant R-12 may be used for flushing if refrigerant R-11 is not available.
- replace expansion valve if contaminated
- replace receiver/drier
- install compressor
- evacuate and re-charge A/C refrigerant system