Refrigerant Circuit, Charging With Service Station

WARNING: This page does not describe the selected car, but rather 18 other vehicles, including the 2016 Audi S4, 2016 Audi A4 Quattro, 2016 Audi A4, 2015 Audi S4, and 2015 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

The entire refrigerant charge can be added to either the high or low pressure side. Refer to REFRIGERANT R134A CAPACITIES, REFRIGERANT OIL AND APPROVED REFRIGERANT OILS .

The work procedure is always to be performed as described in the operating instructions for the A/C service station.
Before pouring in refrigerant, correct the quantity of refrigerant oil. Refer to REFRIGERANT R134A CAPACITIES, REFRIGERANT OIL AND APPROVED REFRIGERANT OILS .
Make sure the A/C Service Station is standing at the same level as the vehicle (maximum difference: 50 cm) when charging the refrigerant circuit. If a difference in height is large enough, a difference between the amount of refrigerant displayed on the service station and amount actually filled in the circuit will result (depending on the version of the A/C Service Station). The ability of the A/C Service Station to perform an exact filling can change.

-- Turn off the ignition.

-- Evacuate the refrigerant circuit using the service station. Refer to REFRIGERANT CIRCUIT, DISCHARGING WITH SERVICE STATION .

-- Screw out handwheel at quick-release coupling adapter (to close it).

-- Allow an amount of refrigerant to flow into charging hose.

-- Check the charging cylinder.

-- Screw in hand wheel at the quick-release coupling adapter (to open it) and charge with the specified quantity of refrigerant.

-- Turn off the service station.