VW ID.4 Service & Owner's Manuals
Table of Contents > Cooling > Cooling system/coolant > Connection diagram – coolant hoses, refrigerant R744

VW ID.4 Electric rear-wheel and all-wheel drive ➜ Connection diagram – coolant hoses, refrigerant R744

ID.4 2021 ➤, ID.3 2020 ➤  
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021  
2
Cooling system/coolant  
2.1  
Connection diagram – coolant hoses,  
refrigerant R744  
2.1.1  
Connection diagram - coolant hoses, rear-wheel drive  
1 - Charging unit 1 for high-  
voltage battery -AX4-  
❑ With control unit for  
high-voltage battery  
charging unit -J1050-  
2 - Three-phase current drive  
-VX54-  
❑ With power and control  
electronics for electric  
drive -JX1-  
3 - High-voltage battery 1 -  
AX2-  
4 - Coolant pump for low-tem‐  
perature circuit -V468-  
5 - Mixing valve for high-  
voltage battery pre-heating -  
V683-  
6 - Mixing valve 2 for high-  
voltage battery pre-heating -  
V696-  
7 - Coolant pump for high-  
voltage battery -V590-  
8 - Voltage converter -A19-  
9 - PTC heater element 3 -  
Z132-  
10 - Radiator  
11 - Heat exchanger for high-  
voltage battery  
12 - Thermostat  
13 - Coolant expansion tank  
2.1.2  
Connection diagram - coolant hoses, four-wheel drive  
2. Cooling system/coolant  
47  
ID.4 2021 ➤, ID.3 2020 ➤  
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021  
1 - Voltage converter -A19-  
2 - Charging unit 1 for high-  
voltage battery -AX4-  
❑ With control unit for  
high-voltage battery  
charging unit -J1050-  
3 - Three-phase current drive  
-VX54-  
❑ With power and control  
electronics for electric  
drive -JX1-  
4 - Coolant hose  
❑ Equipment version de‐  
pending on vehicle ver‐  
sion  
5 - High-voltage battery 1 -  
AX2-  
6 - Mixing valve 2 for high-  
voltage battery pre-heating -  
V696-  
7 - Mixing valve for high-  
voltage battery pre-heating -  
V683-  
8 - Coolant pump for low-tem‐  
perature circuit -V468-  
9 - Power and control elec‐  
tronics 2 for electric drive -  
JX4-  
10 - PTC heater element 3 -  
Z132-  
11 - Radiator  
12 - Heat exchanger for high-  
voltage battery  
13 - Thermostat  
14 - Coolant expansion tank  
15 - Coolant pump for high-voltage battery -V590-  
2.2  
Connection diagram – coolant hoses,  
refrigerant R1234yf  
2.2.1  
Connection diagram - coolant hoses, rear-wheel drive  
48  
Rep. gr.19 - Cooling  

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