Get Air conditioning system -> 1.5.7 Renewing receiver with no need to clean refrigerant circuit Guide for Volkswagen Touran 4 Door Second Generation (2015-2022)

Arteon 2018 ➤ , Atlas 2017 ➤ , CC 2012 ➤ , Caddy 2016 ➤ , Crafter 201 ...

Air conditioning systems with refrigerant R1234yf - General information - Edition 07.2017

– Only fill the replacement air conditioner compressor with fresh

refrigerant oil equivalent to volume of oil that was flushed out

(from the defective air conditioner compressor).

Note

If for instance 70 cm³refrigerant oil was poured out of the de‐

♦

fective air conditioner compressor, and 140 cm³oil was pour‐

ed out of the replacement air conditioner compressor (a small

quantity of refrigerant oil remains in the air conditioner com‐

pressor and potentially in the air conditioner service station ).

The air conditioner compressor to be installed must be filled

in this instance with 70 cm³of refrigerant oil (the refrigerant oil

flushed out of the replacement air conditioner compressor

must not be used as it may have been contaminated in the air

conditioner service station ).

♦ Different refrigerant oils and volumes for different air condi‐

tioner compressors ⇒ Heating, air conditioning; Rep. gr. 00 ;

Technical data .

♦ If quite a large amount of refrigerant oil was flushed out of the

defective air conditioner compressor (more than approx.

40 cm ³), the remaining refrigerant oil can also be poured in

the evaporator, a refrigerant line or the reservoir/receiver/inner

heat exchanger ⇒ Heating, air conditioning; Rep. gr. 87 ; Re‐

frigerant circuit; System overview - refrigerant circuit , ⇒

Heating, air conditioning; Rep. gr. 00 ; Technical data .

Mechanical air conditioner compressor

– Remove oil drain plug from air conditioner compressor ⇒

Heating, air conditioning; Rep. gr. 87 ; Refrigerant circuit;

System overview - refrigerant circuit .

Note

Different versions of oil drain plug and corresponding seal (either

a seal or an O-ring may be installed, renew)

⇒ “1.5.2 Renewing leaking or damaged components of empty re‐

frigerant circuit (apart from air conditioner compressor and re‐

ceiver)”, page 81 and ⇒ Electronic parts catalogue .

– To speed up draining of the refrigerant oil, rotate the shaft of

the air conditioner compressor using e.g. the magnetic clutch

pulley.

– Pour out old refrigerant oil from the air conditioner compressor

and dispose ⇒ VW / Audi-ServiceNet (observe local regula‐

tions).

– Remove oil drain screw from replacement air conditioner com‐

pressor, pour out refrigerant oil and replace it with only the

quantity of fresh refrigerant oil equal to the amount of refrig‐

erant oil poured out of the defective air conditioner compressor

⇒ “1.5.2 Renewing leaking or damaged components of empty

refrigerant circuit (apart from air conditioner compressor and

receiver)”, page 81 .

Rep. gr.87 - Air conditioning system

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Arteon 2018 ➤ , Atlas 2017 ➤ , CC 2012 ➤ , Caddy 2016 ➤ , Crafter 201 ...

Air conditioning systems with refrigerant R1234yf - General information - Edition 07.2017

Note

If for instance 50 cm³refrigerant oil was poured out of the de‐

♦

fective air conditioner compressor, and 100 cm³oil was pour‐

ed out of the replacement air conditioner compressor (a small

quantity of refrigerant oil remains in the air conditioner com‐

pressor), pour 50 cm³refrigerant oil into the replacement air

conditioner compressor (the refrigerant oil previously poured

from the air conditioner compressor spare part may be used).

♦ Different refrigerant oils and volumes for different air condi‐

tioner compressors ⇒ Heating, air conditioning; Rep. gr. 00 ;

Technical data .

♦ If quite a large amount of refrigerant oil was poured out of the

defective air conditioner compressor (more than approx. 50

cm ³), the remaining refrigerant oil can also be poured in the

evaporator or reservoir/receiver/inner heat exchanger ⇒ Heat‐

ing, air conditioning; Rep. gr. 87 ; Refrigerant circuit; System

overview - refrigerant circuit .

All

– Renew restrictor (only if installed in this refrigerant circuit).

– Assemble the refrigerant circuit, evacuate and charge

⇒ page 129 .

1.5.5

Renewing air conditioner compressor

due to leaks or internal damage

♦ Observe the general information about renewing components

⇒ “1.5.1 General information about renewing components”,

page 79

Vehicles with high-voltage system (hybrid vehicles)

– Observe the risk category of the high-voltage system ⇒ Rep.

gr. 00 ; Risk category of the high-voltage system .

– Observe safety precautions when working on the high-voltage

system

⇒ “1.5 Safety measures for working on vehicles with high-volt‐

age system”, page 3 .

– Observe safety precautions when working in the vicinity of

high-voltage components

⇒ “1.6 Safety precautions when working in the vicinity of high-

voltage components”, page 4 .

All vehicles

Renew air conditioner compressor e.g. owing to noise from the

air conditioner compressor or lack of performance.

– Drain refrigerant circuit ⇒ page 129 .

– Remove air conditioner compressor ⇒ Heating, air condition‐

ing; Rep. gr. 87 ; Air conditioner compressor .

– Clean refrigerant circuit (flush with R1234yf refrigerant)

⇒ “1.6 Cleaning refrigerant circuit”, page 92 .

1. Refrigerant circuit

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Air conditioning system -> 1.5.7 Renewing receiver with no need to clean refrigerant circuit for Your Volkswagen Touran 4 Door Second Generation (2015-2022)

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