Get Test equipment and tools Guide for Audi A2 SUV 1999-2005

Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A1 Sportback 2 ...

Air conditioner with refrigerant R134a - Edition 11.2018

11

Test equipment and tools

⇒ “11.1 List of testers, tools and materials”, page 377

⇒ “11.2 Tools and materials available from regional sales centre

or importer”, page 379

⇒ “11.3 Commercially available tools and materials”, page 382

⇒ “11.4 Improvised tools”, page 383

11.1

List of testers, tools and materials

Note

This list outlines the testers, tools and materials required for ex‐

pert refrigerant circuit repair work.

♦ Tools and materials available from regional sales centre or

importer ⇒ page 377 .

♦ Commercially available tools and materials ⇒ page 378 .

♦ Improvised tools ⇒ page 379 .

11.1.1

Tools and materials available from regional sales centre or importer

Overview

Page

Air conditioner service station with flushing kit for currently available air See Figure and ⇒ Electronic parts

conditioner service stations ⇒ Electronic parts catalogue (Tools; Work‐

shop equipment/tools; Air conditioning/heating)

catalogue

– With integrated program for flushing refrigerant circuit with refrigerant

R134a as well as the corresponding flushing kit

Refrigerant circuit flushing kit for currently available flushing kits ⇒ Elec‐

tronic parts catalogue (Tools; Workshop equipment/tools; Air condition‐

ing/heating)

⇒ Electronic parts catalogue

– For flushing the refrigerant circuit with refrigerant R134a; also for use

with older air conditioner service stations with a vessel for at least 10

kg of refrigerant R134a (flushing must be performed manually)

VW/Audi passenger vehicle adapter set - VAS 6338/1- ⇒ Electronic parts

catalogue (Tools; Workshop equipment/tools; Air conditioning/heating).

– For connecting air conditioner service station to refrigerant circuit and

for bridging certain removed components when flushing

Adapters -VAS 6338/40- and -VAS 6338/41- ⇒ Electronic parts catalogue

(Tools; Workshop equipment/tools; Air conditioning/heating)

– For vehicle with a high-voltage system, for flushing the air conditioner

compressor

⇒ Electronic parts catalogue

Shut-off valve -VAS 6338/42- ⇒ Electronic parts catalogue (Tools; Work‐

shop equipment/tools; Air conditioning/heating)

– For vehicles with a high-voltage system, for bypassing certain re‐

moved components when flushing the refrigerant circuit

Shut-off valve set -VAS 6338/47- ⇒ Electronic parts catalogue (Tools;

Workshop equipment/tools; Air conditioning/heating)

– For some vehicles with a high-voltage system (e.g. Audi Q7 e-tron);

for bypassing removed non-return valves when flushing the refrigerant

circuit

⇒ Electronic parts catalogue

Leak detector, currently available leak detectors⇒ Electronic parts cata‐ See Figure and ⇒ Electronic parts

logue (Tools; Workshop equipment/tools; Air conditioning/heating) catalogue

Detaching device for magnetic clutch (Zexel / Valeo air conditioner com‐ See Figure and ⇒ Electronic parts

pressor) V.A.G 1719 ⇒ Electronic parts catalogue (Tools; Workshop

equipment/tools; Air conditioning/heating)

catalogue

11. Test equipment and tools

377

Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A1 Sportback 2 ...

Air conditioner with refrigerant R134a - Edition 11.2018

Overview

Page

Adapter set for refrigerant circuit R134a V.A.G 1785/1-10 ⇒ Electronic See Figure and ⇒ Electronic parts

parts catalogue (Tools; Workshop equipment/tools; Air conditioning/heat‐

ing)

catalogue

– For connecting air conditioner service station to refrigerant circuit and

for bridging certain components on flushing and blowing out

Valve adapter V.A.G 1785/9 and V.A.G 1785/10 ⇒ Electronic parts cata‐ See Figure and ⇒ Electronic parts

logue (Tools; Workshop equipment/tools; Air conditioning/heating) catalogue

Adapter set with service connection V.A.G 1786 ⇒ Electronic parts cata‐ See Figure and ⇒ Electronic parts

logue (Tools; Workshop equipment/tools; Air conditioning/heating)

O-rings ⇒ Electronic parts catalogue

catalogue

See Figure and ⇒ Electronic parts

catalogue

Refrigerant oil ⇒ Electronic parts catalogue

See Figure and ⇒ Electronic parts

catalogue

The VAS 6201 leak detection system includes the following: ⇒ Electronic See Figure and ⇒ Electronic parts

parts catalogue (Tools; Workshop equipment/tools; Air conditioning/heat‐

catalogue

ing)

♦ Hand pump with low-pressure service hose, service coupling and non-

return valve VAS 6201/1

♦ Cartridge VAS 6201/2

♦ Cleaning solution VAS 6201/3

♦ UV leak detection lamp VAS 6201/4

♦ Replacement bulb for leak detection lamp VAS 6201/5

♦ Eye protection VAS 6201/6

♦ Sticker VAS 6201/7

♦ Protective gloves VAS 6201/9

♦ Filler tube VAS 6201/8

♦ System case VAS 6201/10

Adapter set for service connections ⇒ Electronic parts catalogue (Tools; See Figure and ⇒ Electronic parts

Workshop equipment/tools; Air conditioning/heating)

catalogue

Refrigerant line release tool -T40149/- ⇒ Electronic parts catalogue

⇒ Electronic parts catalogue

(Tools; Special tools)

Dismantling tool for the refrigerant line quick release couplings -T40232-

⇒ Electronic parts catalogue (Tools; Special tools)

⇒ Electronic parts catalogue

11.1.2

Commercially available tools and materials

Overview

Page

Fin comb

Refer to illustration

Filler hoses 5/8" - 18 UNF with valve opener

Connection piece for refrigerant cylinder and seal with quick-release coupling

Refer to illustration

connection or threaded connection 5/8" - 18 UNF

Valve caps 5/8"-18 UNF

Pressure gauge set with pressure reducer for nitrogen

Refer to illustration

Quick-release coupling adapter for service connections (2x included in scope

of delivery of air conditioner service station)

Open-ring spanner, size according to bolted joints at refrigerant lines

Valve opener for filler hoses

Connecting nipples for conical seal 5/8"-18 UNF

Compressed air gun with rubber end piece

Not illustrated

378

Rep. gr.87 - Air conditioning system

Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A1 Sportback 2 ...

Air conditioner with refrigerant R134a - Edition 11.2018

Overview

Page

Combination fine filter unit for compressed air system, oil, dirt and water sep‐

Not illustrated

arator as standard for painting facilities

Valve opener for Schrader valve

Manual shut-off valve 5/8"-18 UNF

Recycling cylinder for refrigerant R134a

Digital thermometer

Protective gloves

Safety goggles

Not illustrated

Refrigerant R134a with cylinder (capacity as required)

11.1.3

Improvised tools

Overview

Filler hose with connection to compressed-air system for workshop

Page

Not illustrated

11.2

Tools and materials available from re‐

gional sales centre or importer

Service station / air conditioner service station (this illustration

shows V.A.S 6007A, for example), for currently available air con‐

ditioner service stations ⇒ Electronic parts catalogue (Tools;

Workshop equipment/tools; Air conditioning/heating).

♦ The operations "testing, extraction (recycling), evacuation,

flushing and charging" must be performed according to the

relevant operating instructions.

♦ The filters and dryers fitted must be renewed by no later than

the end of the period of use specified in the operating instruc‐

tions and each time the station is drained (have replacement

filter to hand). Available from equipment manufacturer; refer

to the operating instructions for the air conditioner service sta‐

tion.

♦ Air conditioner service stations that are not displayed here

may also be used ⇒ Electronic parts catalogue (Tools; Work‐

shop equipment/tools; Air conditioning/heating).

♦ Currently available air conditioner service stations are provi‐

ded with a refrigerant circuit flushing program. The scope of

delivery of these air conditioner service stations also includes

the necessary flushing kit ⇒ Electronic parts catalogue (Tools;

Workshop equipment/tools; Air conditioning/heating).

Note

♦ This air conditioner service station comprises the following

standard components: Charging cylinder, pressure gauge set,

vacuum pump, shut-off valves and filler hoses.

♦ One quick-release coupling each (for service connections on

high and low-pressure side) is included in the scope of delivery

of this air conditioner service station.

♦ Depending on the version, a current vacuum display (LED)

may appear after pressing the “Evacuation” button again.

11. Test equipment and tools

379

Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A1 Sportback 2 ...

Air conditioner with refrigerant R134a - Edition 11.2018

Leak detector (e.g. V.A.G 1796), currently available leak detec‐

tors⇒ Electronic parts catalogue (Tools; Workshop equipment/

tools; Air conditioning/heating)

Leak detector (e.g. VAS 6201), currently available leak detector

systems ⇒ Electronic parts catalogue (Tools; Workshop equip‐

ment/tools; Air conditioning/heating)

Puller for magnetic clutch V.A.G 1719 (for “Zexel / Valeo” air con‐

ditioner compressor)

Adapter set for refrigerant circuit R134a V.A.G 1785/1-10

Adapter for cleaning refrigerant circuit (flush with refrigerant

R134a) ⇒ page 100 or blow out with compressed air and nitrogen

⇒ page 95 .

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 1785/1

♦ M 20x1.5 V.A.G 1785/2

♦ M 24x1.5 V.A.G 1785/3

♦ M 28x1.5 V.A.G 1785/4

380

Rep. gr.87 - Air conditioning system

Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A1 Sportback 2 ...

Air conditioner with refrigerant R134a - Edition 11.2018

Adapter

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

B - Threaded connection for O-ring

♦ M 18 x 1.5 V.A.G 1785/5

♦ M 20 x 1.5 V.A.G 1785/6

♦ M 24 x 1.5 V.A.G 1785/7

♦ M 28 x 1.5 V.A.G 1785/8

Valve adapter

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

B - Internal thread with valve opener

♦ M 10 x 1.25 V.A.G 1785/9 (for connections with valve on high-

pressure end)

♦ M 12 x 1.5 V.A.G 1785/10 (for connections on low-pressure

end)

Note

♦ A Schrader valve is screwed into connection -A-.

♦ A valve opener must be installed in the filler hose connection.

♦ Various adapters from this adapter set are also included in the

VW/Audi passenger vehicle adapter set - VAS 6338/1- .

Adapter set for service connection V.A.G 1786

A - Adapter with union nut - V.A.G 1786/1- (only for connections

with small valve core at low-pressure side)

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

C - Adapter with service connection - V.A.G 1786/2-

Note

♦ For connections with large valve core (standard on “Zexel/Va‐

leo” compressors, gradual change to small valve core from

10.94 onwards), adapter V.A.G 1785/10 should be used (re‐

move valve from adapter V.A.G 1785/10 or install valve open‐

er in filler hose -B-).

♦ The logo of the compressor manufacturer “Zexel” attached to

the air conditioner compressor was modified from “Zexel” to

“Valeo” from year of production 2006 onwards (change in

manufacturer's name).

11. Test equipment and tools

381

Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A1 Sportback 2 ...

Air conditioner with refrigerant R134a - Edition 11.2018

Socket - T10364-

Note

For removing and installing service connections and valve cores

with refrigerant circuit discharged.

11.3

Commercially available tools and mate‐

rials

Fin comb

Filler hoses

5/8"-18 UNF thread

Note

♦ Use differently coloured filler hoses (1800 mm long).

♦ Have valve opener and spare seals to hand.

♦ A short filler hose is also included in the adapter set for refrig‐

erant circuits - VAS 6338/1- .

Connection piece for refrigerant cylinder with seal, quick-release

coupling connection or threaded connection 5/8" - 18 UNF

382

Rep. gr.87 - Air conditioning system

Audi 100 1991 ➤ , Audi 80 1992 ➤ , Audi A1 2011 ➤ , Audi A1 Sportback 2 ...

Air conditioner with refrigerant R134a - Edition 11.2018

Valve caps with spare seals (for 5/8"-18 UNF thread)

Seals can also be used for filler hoses.

Note

Valve caps with replacement seals are also included in the adapt‐

er set for refrigerant circuits - VAS 6338/1- .

Pressure gauge set with nitrogen pressure reducer (max. reduc‐

ing pressure: 15 bar).

1 - Pressure gauge set

2 - Pressure hose (ID 5 mm, length 2 m)

3 - Nitrogen

4 - Hose fitting

Note

For connection to adapter V.A.G 1785 with 5/8"-18 UNF thread

Quick-release coupling adapter for service connections

♦ High-pressure side with nominal diameter of 16 mm

♦ Low-pressure side with nominal diameter of 13 mm

♦ Sharan, 2 releasing tools

Note

This quick-release coupling is included in the scope of delivery of

the air conditioner service station.

11.4

Improvised tools

Filler hose with connection to compressed-air system for work‐

shop

A - Filler hose 5/8" - 18 UNF** (version with large internal diam‐

eter)

B - Connection for workshop compressed air system** (always

use filter)

11. Test equipment and tools

383

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Test equipment and tools for Your Audi A2 SUV 1999-2005

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