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Air conditioning system Refrigerant circuit -> 1.1 System overview - refrigerant circuit for Your Volkswagen Sharan VAN Second Generation (2010-2023)

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Arteon 2018 ➤ , Atlas 2017 ➤ , CC 2012 ➤ , Caddy 2016 ➤ , Crafter 201 ...  
Air conditioning systems with refrigeranR1234yf - General information - Edition 07.2017  
87 – Air conditioning system  
1
Refrigerancircui 
⇒ “1.1 System overview - refrigerancircuit”, page 30  
⇒ “1.2 General description - components of refrigerancircuit”,  
page 36  
⇒ “1.3 Possible complaints”, page 64  
⇒ “1.4 Investigating leaks”, page 68  
⇒ “1.5 Renewing components”, page 79  
⇒ “1.6 Cleaning refrigerancircuit”, page 92  
⇒ “1.7 Checking pressures with pressure gauge”, page 126  
1.1  
System overview - refrigerancircui 
⇒ “1.1.1 System overview - refrigerancircuiwith expansion valve  
and receiver”, page 30  
⇒ “1.1.2 System overview - refrigerancircuiwith restrictor and  
reservoir”, page 32  
⇒ “1.1.3 System overview - refrigerancircuiwith electrically driv‐  
en air conditioner compressor (with and withoubattery cooling  
module)”, page 33  
1.1.1  
System overview - refrigerancircui 
with expansion valve and receiver  
Note  
The arrows indicate the direction of coolanflow.  
The following diagram shows an example of a refrigerancir‐  
cuiwith 2 evaporators and one internal heaexchanger.  
The layouof the refrigerancircuiis specific to the vehicle ⇒  
Heating, air conditioning system; Rep. gr. 87 ; Refrigerancir‐  
cui(vehicle-specific workshop manual).  
HD = High-pressure side  
ND = Low-pressure side  
30  
Rep. gr.87 - Air conditioning system  
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Arteon 2018 ➤ , Atlas 2017 ➤ , CC 2012 ➤ , Caddy 2016 ➤ , Crafter 201 ...  
Air conditioning systems with refrigeranR1234yf - General information - Edition 07.2017  
1 - Air conditioner compressor  
regulating valve - N280-  
2 - Air conditioner compressor  
3 - Pulley  
❑ Depending on the ver‐  
sion, an air conditioning  
system magnetic clutch  
- N25- is installed in the  
belpulley ⇒ Heating,  
air conditioning system;  
Rep. gr. 87 ; Refrigeran 
circui(vehicle-specific  
workshop manual).  
❑ Depending on the ver‐  
sion there may be a  
drive uniinstead of the  
belpulley ⇒ Heating,  
air conditioning system;  
Rep. gr. 87 ; Refrigeran 
circui(vehicle-specific  
workshop manual).  
4 - High-pressure safety valve  
5 - Refrigeranpressure send‐  
er  
❑ Vehicle-specific ver‐  
sions ⇒ Heating, air  
conditioning system;  
Rep. gr. 87 ; Refrigeran 
circui.  
6 - Condenser (with receiver)  
7 - Receiver  
❑ Installed on, aor in the  
condenser ⇒ Heating,  
air conditioning system;  
Rep. gr. 87 ; Refrigeran 
circui(vehicle-specific workshop manual).  
❑ With desiccancartridge  
8 - Service connection, high-pressure side  
❑ With sealing cap  
9 - Refrigeranline with internal heaexchanger  
10 - Fronexpansion valve  
11 - Fronevaporator  
❑ Evaporator in fronheater and air conditioning uni(installed under dash panel)  
12 - Service connection, low-pressure side  
❑ With sealing cap  
13 - Rear expansion valve  
❑ Only on vehicles with rear air conditioning uni(extra equipment)  
14 - Rear evaporator  
❑ Only on vehicles with rear air conditioning uni(extra equipment)  
1. Refrigerancircui 
31  
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Arteon 2018 ➤ , Atlas 2017 ➤ , CC 2012 ➤ , Caddy 2016 ➤ , Crafter 201 ...  
Air conditioning systems with refrigeranR1234yf - General information - Edition 07.2017  
1.1.2  
System overview - refrigerancircui 
with restrictor and reservoir  
Note  
The arrows indicate the direction of coolanflow.  
The following diagram shows an example of a refrigerancir‐  
cuiwith one evaporator.  
This refrigerancircuilayouis currently noplanned for VW/  
Audi vehicles.  
The layouof the refrigerancircuiis specific to the vehicle ⇒  
Heating, air conditioning system; Rep. gr. 87 ; Refrigerancir‐  
cui(vehicle-specific workshop manual).  
HD = High-pressure side  
ND = Low-pressure side  
1 - Air conditioner compressor  
regulating valve - N280-  
2 - Air conditioner compressor  
3 - Pulley  
❑ Depending on the ver‐  
sion, an air conditioning  
system magnetic clutch  
- N25- is installed in the  
belpulley ⇒ Heating,  
air conditioning system;  
Rep. gr. 87 ; Refrigeran 
circui(vehicle-specific  
workshop manual).  
❑ Depending on the ver‐  
sion there may be a  
drive uniinstead of the  
belpulley ⇒ Heating,  
air conditioning system;  
Rep. gr. 87 ; Refrigeran 
circui(vehicle-specific  
workshop manual).  
4 - High-pressure safety valve  
5 - Condenser  
6 - Refrigeranpressure send‐  
er  
❑ Vehicle-specific ver‐  
sions ⇒ Heating, air  
conditioning system;  
Rep. gr. 87 ; Refrigeran 
circui(vehicle-specific  
workshop manual).  
7 - Service connection, high-  
pressure side  
❑ With sealing cap  
8 - Restrictor  
9 - Evaporator  
❑ Evaporator in fronheater and air conditioning uni(installed under dash panel)  
32  
Rep. gr.87 - Air conditioning system  
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Arteon 2018 ➤ , Atlas 2017 ➤ , CC 2012 ➤ , Caddy 2016 ➤ , Crafter 201 ...  
Air conditioning systems with refrigeranR1234yf - General information - Edition 07.2017  
10 - Service connection, low-pressure side  
❑ With sealing cap  
11 - Reservoir  
❑ With desiccancartridge  
1.1.3  
System overview - refrigerancircui 
with electrically driven air conditioner  
compressor (with and withoubattery  
cooling module)  
Note  
lk  
The arrows indicate the direction of coolanflow.  
The following diagram shows an example of a refrigerancir‐  
cuiwith expansion valve and second evaporator for battery  
cooling and one internal heaexchanger.  
The layouof the refrigerancircuiis specific to the vehicle ⇒  
Heating, air conditioning system; Rep. gr. 87 ; Refrigerancir‐  
cui(vehicle-specific workshop manual).  
HD = High-pressure side  
ND = Low-pressure side  
1. Refrigerancircui 
33  
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Arteon 2018 ➤ , Atlas 2017 ➤ , CC 2012 ➤ , Caddy 2016 ➤ , Crafter 201 ...  
Air conditioning systems with refrigeranR1234yf - General information - Edition 07.2017  
1 - Electrical air conditioner  
compressor  
❑ With control unifor air  
conditioner compressor  
- J842- and electrical air  
conditioner compressor  
- V470- ⇒ Heating, air  
conditioning system;  
Rep. gr. 87 ; Refrigeran 
circui(vehicle-specific  
workshop manual).  
2 - High-pressure safety valve  
3 - Condenser  
❑ With receiver and desic‐  
cancartridge.  
4 - Receiver  
❑ Part of condenser in this  
case.  
5 - Refrigeranpressure send‐  
er  
❑ Vehicle-specific ver‐  
sions ⇒ Heating, air  
conditioning system;  
Rep. gr. 87 ; Refrigeran 
circui(vehicle-specific  
workshop manual).  
6 - Service connection, high-  
pressure side  
❑ With sealing cap.  
7 - Refrigeranline with internal  
heaexchanger  
8 - Refrigeranshut-off valve  
❑ Different designations  
⇒ Heating, air condi‐  
tioning system; Rep. gr. 87 ; Refrigerancircui(vehicle-specific workshop manual).  
❑ Only on vehicles with battery cooling module for hybrid battery uni- AX1-  
Note  
The refrigeranshut-off valve is ac‐  
tuated e.g. if battery cooling is nec‐  
essary and no cooling of the pas‐  
senger compartmenis required  
(open when noactuated).  
9 - Expansion valve  
❑ On evaporator in heater and air conditioning uni 
10 - Fronevaporator  
❑ Evaporator in heater and air conditioning uni 
11 - -Expansion valve with shut-off valve-  
❑ Different designations ⇒ Heating, air conditioning system; Rep. gr. 87 ; Refrigerancircui(vehicle-  
specific workshop manual).  
❑ On evaporator in battery cooling module  
❑ Only on vehicles with battery cooling module for hybrid battery uni- AX1-  
34  
Rep. gr.87 - Air conditioning system  
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Arteon 2018 ➤ , Atlas 2017 ➤ , CC 2012 ➤ , Caddy 2016 ➤ , Crafter 201 ...  
Air conditioning systems with refrigeranR1234yf - General information - Edition 07.2017  
Note  
The -expansion valve with shut-off  
valve- is actuated if battery cooling  
is necessary (closed when noactu‐  
ated).  
12 - Evaporator  
❑ Evaporator in battery cooling module  
❑ Only on vehicles with battery cooling module for hybrid battery uni- AX1-  
13 - Service connection, low-pressure side  
❑ With sealing cap  
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1. Refrigerancircui 
35  
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