Refrigerant Lines, Disconnecting And Connecting At Condenser: Installing

WARNING: This page is about a different car, the 2021 Audi S4 and 2021 Audi A4 Quattro. However, it is still accessible from the selected car via links, so may be relevant.

The installation takes place in reverse order and is identical for both versions and at the same time note the following:

Coat the O-ring seals lightly with refrigerant oil before installing. Refer to REFRIGERANT CIRCUIT SEALS .
Install the refrigerant lines stress-free.

-- Clean the refrigerant line connections on the condenser and on the refrigerant lines and check for damage.

-- Check the alignment pin (installed in the condenser connection or the refrigerant line, not present in all connections) for damage and correct seating.

-- Check the routing of the refrigerant lines after attachment. They must be inserted in the provided brackets in a tension-free manner and must not come in contact with other components.

-- Evacuate and charge the refrigerant circuit. Refer to Refrigerant Circuit or Working with A/C Service Station (1 Of 2) / Working with A/C Service Station (2 Of 2) .

-- Start the A/C system after charging the refrigerant circuit. Refer to A/C SYSTEM, STARTING AFTER CHARGING REFRIGERANT CIRCUIT .