Volkswagen Golf 1999 Service Manual page 3986

General information for A/C system
- It is recommended to have an eye-flushing bottle
available.
- If liquid refrigerant has come in contact with your skin
and eyes, immediately flush with cool water for 15
minutes. Afterwards instill eye drops and consult a
doctor immediately, even when the eyes are not
hurting.
- The doctor must be informed that the injury was
caused by refrigerant R134a. Should refrigerant come
into contact with other parts of the body despite
compliance with safety regulations, these must
likewise be rinsed immediately for at least 15 minutes
with cold water.
- Work on refrigerant system should only be performed
in ventilated areas (workshops). Switch on existing
ventilation systems.
- Refrigerant must not be stored in low-level areas (e.g.
cellars) and corresponding exits or light wells.
- Do not attempt repair on filled air conditioning systems by
soldering, brazing or welding. This applies also for welding
and soldering work on the vehicle, in the event that parts of
the A/C system may heat up. When performing paintwork
repairs, the temperature in the drying booth or preheating
zone must not exceed 80
Reason:
Exposure to heat gives rise to considerable pressure in the
system, which could cause the pressure relief valve to
open.
Corrective action:
- Discharge refrigerant circuit using service station.
Note:
- Always replace damaged and/or leaking A/C system
components. Do not attempt repair by soldering, brazing or
welding.
Refrigerant vessels (e.g. charging cylinders of service
station) must never be subjected to excessive heat or
exposed to direct sunlight.
Corrective action:
- Vessels must never be completely filled with liquid
refrigerant. Without sufficient room for expansion (gas
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13/2/2005