Volkswagen Golf 1999 Service Manual page 3852

A/C refrigerant system
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Next&type=repair&id=...
CAUTION!
- Before working on electrical system,
obtain radio security code and
disconnect battery Ground (GND) strap
- After reconnecting battery:
1) Always reactivate and check operation
of vehicle equipment such as radio,
clock, and power windows according to
Repair Manual and/or Owner's Manual
2) Activate Readiness Code
Manual, OBD II Fuel Injection & Ignition,
Repair Group 01
- R-12 and R-134a refrigerant are NOT
compatible. Never add R-12 refrigerant to
an R-134a system or R-134a refrigerant to
an R-12 system. If the refrigerants are
mixed, total system contamination will
occur and compressor failure may result
- Refrigerant oils used for the R-134a
system and R-12 system are NOT
compatible. Use only the specified
synthetic oil (Polyalkylene Glycol/PAG)
for the R-134a refrigerant system. DO
NOT use R-12 system oil in an R-134a
system or R-134a system oil in an R-12
system. If the refrigerant oils are mixed,
system contamination will occur and
compressor failure may result
- R-134a refrigerant system oil (PAG oil)
absorbs moisture very rapidly. Moisture
combines with the refrigerant to form
acids which will damage the system. Use
only the specified oil from a sealed
container and ALWAYS reseal oil
container immediately after use. DO NOT
use oil if it has become contaminated
with moisture
Página 4 de 21
87-72
Repair
13/2/2005