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Home >> Audi >> 2021 >> A4 Quattro Premium Plus, 2.0L Eng VIN B >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> General Servicing >> Air Conditioning (Refrigerant R1234YF Servicing) (1 Of 2) >> 87 Air Conditioning >> Tools And Testing Equipment >> Commercially Available Tools And Materials

Commercially Available Tools And Materials

NOTE:

This list outlines the testers, tools and materials required for expert refrigerant circuit repair work.

Overview
Fin comb
Charging hoses, 5/8"-18 UNF thread
Charging hoses, M12 x 1.5-6G according to SAE J639 external thread (included in the A/C service station delivery package).
Connection piece for refrigerant cylinder and seal with quick-release coupling connection or threaded connection (included in the A/C service station delivery package).
Valve caps 5/8"-18 UNF
Pressure gauge set with pressure reducer for nitrogen
Quick-release coupling connection for the service connections (Included in the A/C service station delivery package).
The wrench size depends on the threaded connections on the refrigerant lines.
Connecting nipple for conical seal 5/8"-18 UNF
Compressed-air gun with rubber end piece
Hand shut-off valve 5/8"-18 UNF
Recycling bottles for contaminated refrigerant R1234yf (for the respective gas supplier)
Digital thermometer
Protective gloves
Protective Eyewear
Dry ice as pellets (from the respective gas supplier or Internet)