Safety Precautions - Audi 100 1991 Repair Manual

Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A2 2001 ➤ , A ...
Refrigerant R134a Servicing - Edition 01.2011
Note
Refrigerant oil, because of its chemical properties, must not
♦
be disposed of with engine oils or transmission oils. Disposing
of refrigerant oil of unknown origin, refer to Audi ServiceNet,
HSO Environment (or Volkswagen ServiceNet, Handbooks,
Service Handbook; Protecting the Environment, Emissions
Protection).
Only the oil approved for the A/C compressor may be used in
♦
refrigerant circuits with refrigerant R134a. Refer to the Elec‐
tronic Parts Catalog (ETKA) and
⇒ "3.3 Refrigerant Oils", page 117
1.1.7

Safety Precautions

WARNING
♦ It is recommended to have an eye-flushing bottle availa‐
ble.
♦ 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 immedi‐
ately, 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 ventila‐
tion systems.
♦ Refrigerant must not be stored in low-lying areas such as
cellars or in their entry ways or windowsills.
• Do not attempt repair on filled air conditioning systems by sol‐
dering, brazing or welding. This pertains also for welding and
soldering work on the vehicle, in the event that parts of the
climate control system may heat up When performing paint
work repairs, the temperature in the drying booth or preheating
zone must not exceed 80° C.
Reason
Exposure to heat increases the 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 or leaking A/C system components. Do
not attempt to repair them by soldering, brazing or welding.
Refrigerant vessels (e.g. charging cylinders of A/C service sta‐
tion) must never be subjected to excessive heat or exposed to
direct sunlight.
8
Rep. Gr.00 - General, Technical Data
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