2015-2022 Volkswagen Touran 4 Door Air conditioning system -> 1.5.7 Renewing receiver with no need to clean refrigerant circuit User Manual
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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)

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 cm3 refrigerant oil was poured out of the de‐  
♦
fective air conditioner compressor, and 140 cm3 oil 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 ).  
lk  
The air conditioner compressor to be installed must be filled  
in this instance with 70 cm3 of 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 .  
86  
Rep. gr.87 - Air conditioning system  
GETth  
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 cm3 refrigerant oil was poured out of the de‐  
♦
fective air conditioner compressor, and 100 cm3 oil 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 cm3 refrigerant 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  
lk  
– 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  
87  
GETth  

Related Topics

Air conditioning system
1 Refrigerant circuit 1.1 System overview - refrigerant circuit 1.1.1 System overview - refrigerant circuit with expansion valve and receiver 1.1.2 System overview - refrigerant circuit with restrictor and reservoir 1.1.3 System overview - refrigerant circuit with electrically driven air conditioner compressor 1.2 General description - components of refrigerant circuit 1.2.1 Layout and function of refrigerant circuit 1.2.2 Mechanical air conditioner compressor 1.2.3 Electrical air conditioner compressor for hybrid vehicles 1.2.4 Condenser 1.2.5 Evaporator 1.2.6 Reservoir 1.2.7 Heat exchanger for heat pump mode 1.2.8 Liquid receiver 1.2.9 Restrictor 1.2.10 Receiver 1.2.11 Expansion valve (with and without shut-off valve) 1.2.12 Refrigerant shut-off valves 1.2.13 Refrigerant line with internal heat exchanger 1.2.14 Quick release couplings of refrigerant lines 1.2.15 Seals 1.2.16 Pipes and hoses in refrigerant circuit 1.2.17 High-pressure safety valve 1.2.18 Non-return valves 1.2.19 Quick-release coupling connections in refrigerant circuit 1.2.20 Connections with valve for switches in refrigerant circuit 1.2.21 Pressure senders and switches in refrigerant circuit 1.2.22 Refrigerant pressure and temperature sender 1.2.23 Air conditioner compressor regulating valve N280 1.2.24 Refrigerant temperature sender 1.3 Possible complaints 1.3.1 Prerequisites for investigating a complaint 1.3.2 Possible complaints 1.3.3 Odours from heater and air conditioner unit 1.4 Investigating leaks 1.4.1 General information about investigating leaks in the refrigerant circuit 1.4.2 Searching for leaks in refrigerant circuits using an electronic leak detector 1.4.3 Searching for leaks with UV leak detection system 1.4.4 Detecting leaks in a vacuum test using air conditioner service station, or in a pressure test 1.4.5 Detecting leaks in a pressure test (with nitrogen or compressed air) 1.5 Renewing components 1.5.1 General information about renewing components 1.5.2 Renewing leaking or damaged components of empty refrigerant circuit 1.5.3 Renewing leaking or damaged components of charged refrigerant circuit 1.5.4 Renewing air conditioner compressor with no need to clean refrigerant circuit 1.5.5 Renewing air conditioner compressor due to leaks or internal damage 1.5.6 Renewing desiccant cartridge / receiver after cleaning refrigerant circuit 1.5.8 Renewing desiccant cartridge / desiccant bag with no need to clean refrigerant circuit 1.6 Cleaning refrigerant circuit 1.6.1 General information about cleaning refrigerant circuit 1.6.2 Preparations for cleaning refrigerant circuit (flushing with R1234yf refrigerant) 1.6.3 Refrigerant circuit cleaning procedure 1.6.4 Principle circuit diagrams for cleaning (flushing circuits) - refrigerant circuit with expansion valve and receiver 1.6.5 Principle circuit diagrams for cleaning (flushing circuits) - refrigerant circuit with restrictor and receiver 1.6.6 Principle circuit diagrams for cleaning (flushing circuits) - vehicles with high-voltage system (without auxiliary) 1.6.7 Principle circuit diagrams for cleaning (flushing circuits) - vehicles with high-voltage system (with auxiliary) 1.6.8 Adapters for setting up flushing circuits 1.6.9 General information about blowing through with compressed air or nitrogen 1.6.10 Blowing through refrigerant circuit with compressed air or nitrogen 1.7 Checking pressures with pressure gauge 1.7.1 Display on pressure gauges 1.7.2 Pressure gauges enable the following test and measurement work 2 Working with air conditioner service station 2.1 Working with air conditioner service station 2.2 Connecting air conditioner service station to refrigerant circuit 2.3 Performing gas analysis of refrigerant 2.4 Emptying refrigerant circuit 2.5 Evacuating refrigerant circuit 2.6 Charging refrigerant circuit 2.7 Bringing air conditioning system into service after charging 2.8 Switching off air conditioner service station and separating from refrigerant circuit 2.9 Charging refrigerant in reservoir 2.10 Emptying air conditioner service station 2.11 Cleaning electrical air conditioning compressor 2.12 Cleaning refrigerant circuit 2.13 Filling contaminated refrigerant in a recycling cylinder for analysis, processing or disposal 2.13.1 Filling contaminated refrigerant in a recycling cylinder using technical equipment 2.13.2 Filling undercooled contaminated refrigerant in a recycling cylinder 2.14 Checking pressures 2.14.1 General information on checking pressures in the refrigerant circuit 2.14.2 Pressures and temperatures in refrigerant circuit 2.14.3 Checking pressures in the refrigerant circuit with the ignition switched off 2.14.4 Checking pressures with air conditioning system switched on - vehicles with mechanical air conditioning compressor 2.14.5 Checking pressures with air conditioning system switched on - vehicles with electrical air conditioning compressor 3 Testing equipment and tools 3.1 Tools and materials available from distribution centre or importer 3.2 Tools and materials available commercially 3.3 Tools that can be locally manufactured

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