Jonny Retrofit Posted January 7 Posted January 7 If possible, have the system pressure tested with nitrogen at 150- 250 PSI. This will immediately show any leaks due to bad hose crimps or torn o-rings. Fill the system with 600g of R134A refrigerant. Do this with the system OFF. Do not fill with 'cans' - use a proper A/C filling machine or take the car to an A/C centre. Do not add any oil. Oil is already in the compressor.
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