Tools and Materials Available from Regional Sales Center or Importer

WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2009 Audi S4, 2009 Audi A4, 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Designation	Example
A/C service station with flushing equipment VAS 6336 or A/C service station with flushing equipment VAS 6337 (currently available A/C service stations V.A.G workshop equipment catalog ) With program installed for flushing the refrigerant circuit using refrigerant R134a, and corresponding flushing equipment	Refer to illustration and V.A.G workshop equipment catalog
Flushing equipment for refrigerant circuits VAS 6336/1 or Flushing equipment for refrigerant circuits VAS 6337/1 (currently available flushing equipments) V.A.G workshop equipment catalog For flushing the refrigerant circuit using refrigerant R134a, also to be used for older A/C service stations with a reservoir capacity of at least 10 kg refrigerant R134a (flushing must be performed manually).	V.A.G workshop equipment catalog
Adapter case for VW/Audi passenger cars VAS 6338/1 For connecting A/C service station to refrigerant circuit and for bridging certain removed components while flushing	V.A.G workshop equipment catalog
Leak detector V.A.G 1796	Refer to illustration
Puller for A/C clutch (Zexel compressor) V.A.G 1719	Refer to illustration
Adapter set refrig cir R 134a V.A.G 1785/1-10 For connecting A/C service station to refrigerant circuit and for bridging certain removed components while flushing and blowing through	Refer to illustration
Valve adapters V.A.G /9 and V.A.G /10	Refer to illustration
Air conditioning adapter set with service connection V.A.G 1786	Refer to illustration
Combined fine filter unit for compressed-air system (oil, dirt and water separator as used for painting facilities) Workshop equipment catalog	Refer to illustration
O-rings Electronic Parts Catalog ETKA	Refer to illustration
Refrigerant oil Electronic Parts Catalog ETKA	Refer to illustration
Leak detection system VAS 6201 comprising: Hand pump with low-pressure service hose, service coupling and non-return valve VAS 6201/1 Cartridge VAS 6201/2 Cleaning agent VAS 6201/3 UV leak detection lamp VAS 6201/4 Spare bulb for leak detection lamp VAS 6201/5 Safety goggles VAS 6201/6 Sticker VAS 6201/7 Protective gloves VAS 6201/9 Tube VAS 6201/8 System case VAS 6201/10	Refer to illustration

Fig 1: Identifying V.A.G. 1885

Courtesy of VOLKSWAGEN UNITED STATES, INC.

A/C service station (this illustration shows e.g. A/C service station V.A.G 1885 , currently available A/C service stations → V.A.G workshop equipment catalog ).

The operations "testing, extraction (recycling), evacuation, flushing and charging" are to be performed in line with the relevant operating instructions.

The filters and dryers installed are to be replaced at the latest at the end of the period of use specified in the operating instructions and whenever the station has been drained (keep replacement filter to hand; available from equipment manufacturer, refer to operating instructions).

Use can also be made of A/C service stations not described here → V.A.G workshop equipment catalog.

Currently available A/C service stations are equipped with a program for flushing the refrigerant circuit; the flushing equipment required for flushing is also included in delivery → V.A.G workshop equipment catalog

NOTE:

This A/C service station comprises the following standard components: Charging cylinder, pressure gauge set, vacuum pump, shutoff valves and charging hoses.
One quick-release coupling each (for service connections on high and low-pressure side) is included in the scope of delivery of this A/C service station.
Depending on version, a current vacuum display (LED) may appear after pressing the "Evacuate" button again.

Fig 2: Checking For A/C Refrigerant System Leaks

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Leak detector V.A.G 1796

Fig 3: Leak Detection System VAS 6201

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Leak detection system VAS 6201

Fig 4: A/C Clutch Set V.A.G 1719 (For "Zexel" A/C Compressors)

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Puller for A/C clutch V.A.G 1719 (for "Zexel" compressor)

Fig 5: Adapter Set V.A.G 1785/1-10

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Adapter set refrig cir R 134a V.A.G 1785/1-10

Adapter for cleaning refrigerant circuit (flush with refrigerant R134a → Refrigerant Circuit, Flushing with Refrigerant R134a or blow through with compressed air and nitrogen → Refrigerant Circuit, Flushing with Compressed Air and Nitrogen )

A - 5/8"-18 UNF thread for conical seal

B - Union nut (for connection with O-ring) with thread

M 18x1.5 V.A.G /1

M 20x1.5 V.A.G /2

M 24x1.5 V.A.G /3

M 28x1.5 V.A.G /4

Fig 6: M 28x1.5 V.A.G 1785/8

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Adapter

A - 5/8"-18 UNF thread for conical seal

B - Threaded connection for O-ring

M 18x1.5 V.A.G /5

M 20x1.5 V.A.G /6

M 24x1.5 V.A.G /7

M 28x1.5 V.A.G /8

Fig 7: Valve Adapter

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Valve adapter

A - 5/8"-18 UNF thread for conical seal

B - Internal thread with valve opener

M 10x1.25 V.A.G /9 (for connections with valve on high-pressure side)

M 12x1.5 V.A.G /10 (for connections on low-pressure side)

NOTE:

A Schrader valve is screwed into connection - A -.
A valve opener must be installed in the charging hose connection.
Various adapters from adapter set are also part of the adapter case for VW/Audi passenger cars VAS 6338/1

Fig 8: Air Conditioning Adapter Set V.A.G 1786

Courtesy of VOLKSWAGEN UNITED STATES, INC.

Air conditioning adapter set V.A.G 1786

A - Adapter with union nut V.A.G /1 (only for connections with small valve insert on low-pressure side)

B - Charging hose with union nut 5/8"-18 UNF (short version)

C - Adapter with service connection V.A.G /2

NOTE:

For connections with large valve insert (standard on "Zexel" compressors, gradual change to small valve insert as of 10.94), use is to be made of adapter V.A.G /10 (remove valve from adapter V.A.G /10 or install valve opener in charging hose - B - ).