the mechanic puts the quick-release fastener in blue on the valve from the air conditioning system in the car, filling with the r1

134a air auto automobile blue car charging compressed compressor condition conditioner conditioning cool coolant cooling coupler device engine equipment fastener filling garage gas hand hose liquefied liquid machine maintenance mechanic motor pipe pressure pump puts quick quickrelease r1 r134a recharge refill refilling refrigerant refrigeration repair service station system tube valve work workshop