Service Station, Connecting With A/C Adapter Set - Adapter: VAG1785 To Refrigerant Circuit

Fig 1: Connecting With Air Conditioning Adapter Set VAG 1785/10

Courtesy of AUDI OF AMERICA, LLC

-- Remove the cap from the connection with valve -A- (at A/C compressor).

-- Attach the O-ring -B- to the connection (8.9 mm; 1.8 mm).

-- Screw the Adapter :VAG1785/10 -C- onto the connection -B-.

-- Install the valve opener -D- with the appropriate seal in the charging hose connection.

NOTE:

The type of valve opener -D- and seals required depends on charging hose used (specific to manufacturer).

The quick-release coupling adapter is not required for connection on the low-pressure side of Audi vehicles.

Screw the charging hose -E- (to the service station) onto the A/C Adapter Set - Adapter 10 :VAG1785/10 .

NOTE:

To minimize the amount of air and moisture penetrating into the charging hoses and thus into the refrigerant circuit, the charging hoses should be connected together as illustrated.

Fig 2: Identifying Charging Hoses Should Be Connected Together

Courtesy of AUDI OF AMERICA, LLC

A - Charging hose to service station

B - Hand shut-off valve

C - Charging hose (short version) with valve opener for connection to adapter -D-

D - A/C Adapter Set - Adapter 10 : VAG1785/10

E - Charging hose (short version) with quick-release coupling adapter (for vehicles with quick-release coupling adapter on low-pressure side).

-- Perform the planned tests and measurements.