Manual:AUDI A3 Premium, 4D Sedan 2015Page:49982 / 92758



Adapter For Assembling Flushing Circuit: Notes — 2015 Audi A3 Premium, 4D Sedan Service Manual

Adapter For Assembling Flushing Circuit: Notes

  • The following table lists the different adapters necessary to connect the A/C Service Station to the refrigerant circuit, to flush and to bypass the removed receiver/dryer or reservoir and expansion valve (depending on the vehicle).
  • The adapter from the VW/Audi - Passenger Vehicle Adapter Set have 5/8" -18 UNF threads, so that the filling hose from the R1234y-A/C Service Station can be connected (M12 x 1.5-6G external thread according to SAE J639) an additional adapter from the set may be used (for example the Refrigerant Circuits - Adapter 48:VAS6338/48  ).
  • Connect the two adapters that were installed when reservoir or receiver/dryer was removed (included in VW/Audi - Passenger Vehicle Adapter Set) with a fill hose with connections 5/8 -18 UNF (short version for example Filler Hose).
  • If a flushed refrigerant circuit is not reassembled immediately after flushing, adapters remain at connections and seal the connections at the adapters using Refrigerant Circuits Adapter Set 1 - Adapter 30:VAS6338/30  (from VW/Audi - Passenger Vehicle Adapter Set).
  • Depending on the A/C compressor version and the date of manufacture, different connection and sealing techniques can be found on the refrigerant circuit. Refer to REFRIGERANT CIRCUIT / REFRIGERANT CIRCUIT (R1234yf) (vehicle-specific repair information).

Block Or Screw Connections 

GWWA87-10132Courtesy of AUDI OF AMERICA, LLC

-- Threaded connection -A-

-- Block connection -B-

Block Connections With Different Types Of Seals 

-- Block connection with radially sealed connection -A- (with plastic or metal guide -B-)

GWWA87-10133Courtesy of AUDI OF AMERICA, LLC

-- Block connection with axial sealing connection -C-

Assembling The Flushing Circuit  
Audi A1 AUDI A1 
Audi Q2, Audi A3, Audi Q3 and Audi TT AUDI Q2, AUDI A3, AUDI Q3 AND AUDI TT 
Audi A3 e-tron AUDI A3 e-TRON 
Audi A4 AUDI A4 
Audi A5 Coupe and Sportback, Audi Q5, Audi A5 Cabriolet AUDI A5 COUPE AND SPORTBACK, AUDI Q5, AUDI A5 CABRIOLET 
Audi A6 (4G_ or 4X_ for China), Audi A7 (4G_ or 4X_ for China) AUDI A6 (4G_ OR 4X_ FOR CHINA), AUDI A7 (4G_ OR 4X_ FOR CHINA) 
Audi A7 (4K) AUDI A7 (4K) 
Audi A8 (4H) AUDI A8 (4H) 
Audi A8 (4N) AUDI A8 (4N) 
Audi Q7, Audi Q7 e-tron AUDI Q7, AUDI Q7 e-TRON 
Audi R8 AUDI R8