ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
15 - Valve core
❑ 2 Nm
16 - Seal
❑ Renew after removing
17 - Refrigerant pressure and temperature sender -G395-
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant pressure and temperature sender G395
❑ 10 Nm
18 - Valve cap (low pressure)
❑ 1 Nm
19 - Evacuating and charging valve (low-pressure side)
❑ ⇒ Rep. gr. 87; Removing and installing evacuating and charging valve (low-pressure and high-pres‐
sure sides)
❑ 1.5 Nm
20 - Refrigerant line
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line from heat exchanger for high-voltage battery to
low-pressure line
21 - Bolt
❑ 2x
❑ 20 Nm
22 - Air conditioner compressor -VX81-
❑ ⇒ Rep. gr. 87; Exploded view - air conditioner compressor
❑ ⇒ Rep. gr. 87; Removing and installing air conditioner compressor VX81
23 - Refrigerant line
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line from condenser to air conditioner compressor
VX81
24 - Condenser
❑ ⇒ Rep. gr. 87; Exploded view - condenser
❑ ⇒ Rep. gr. 87; Removing and installing condenser
25 - High-voltage battery heat exchanger
❑ ⇒ Rep. gr. 87; Exploded view - heat exchanger for high-voltage battery
❑ ⇒ Rep. gr. 87; Removing and installing heat exchanger for high-voltage battery
3.4
Assembly overview – refrigerant lines,
R744
3.4.1
Exploded view - refrigerant lines
3. Refrigerant circuit
21
ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
1 - Bolt
❑ Applies for all connec‐
tions in illustration
❑ Renew after removing
❑ 13 Nm
2 - Seal
❑ Applies for all connec‐
tions in illustration
❑ Renew after removing
3 - Retaining element
❑ Applies for all connec‐
tions in illustration
❑ Renew after removing
4 - Seal
❑ Applies for all refriger‐
ant pressure and tem‐
perature senders in il‐
lustration
❑ Renew after removing
5 - Dust ring
❑ Applies for all refriger‐
ant pressure and tem‐
perature senders in il‐
lustration
❑ Renew after removing
6 - Refrigerant pressure and
temperature sender 2 -G826-
❑ ⇒ Rep. gr. 87; Remov‐
ing and installing re‐
frigerant pressure and
temperature sender 2
G826
❑ 40 Nm
7 - Heat pump valve unit
❑ ⇒ Rep. gr. 87; Exploded view - heat pump valve unit
❑ ⇒ Rep. gr. 87; Removing and installing heat pump valve unit
8 - Pressure limiting valve
❑ Left-hand thread
❑ Renew after removing
❑ ⇒ a3.22.1 nd installing pressure limiting valve”, page 45
❑ 14 Nm
9 - Evacuating and charging valve
❑ ⇒ Rep. gr. 87; Removing and installing evacuating and charging valve (low-pressure and high-pres‐
sure sides)
❑ 2 Nm
10 - Valve cap
11 - Refrigerant line
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line between refrigerant shut-off valve 3 N641 and
heat condenser
12 - Refrigerant line
22
Rep. gr.87 - Air conditioning system
ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line between expansion valve N638/N637 and
evaporator
13 - Refrigerant pressure and temperature sender 4 -G828-
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant pressure and temperature sender 4 G828
❑ 40 Nm
14 - Refrigerant line
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line between heat pump valve unit and evaporator
15 - Refrigerant line
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line between expansion valve N636/N696 and heat
condenser
16 - Refrigerant pressure and temperature sender -G395-
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant pressure and temperature sender G395
❑ 40 Nm
17 - Refrigerant line
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line between air conditioner compressor VX81 and
valve block N641/N640
18 - Air conditioner compressor -VX81-
❑ ⇒ Rep. gr. 87; Exploded view - air conditioner compressor
❑ ⇒ Rep. gr. 87; Removing and installing air conditioner compressor VX81
19 - Refrigerant line
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line between gas cooler and refrigerant shut-off
valve 2 N640
20 - Refrigerant pressure and temperature sender 3 -G827-
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant pressure and temperature sender 3 G827
❑ 40 Nm
21 - Gas cooler
❑ ⇒ Rep. gr. 87; Removing and installing gas cooler
22 - Refrigerant line
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line between dryer and gas cooler
23 - Refrigerant line
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant line between air conditioner compressor VX81 and
dryer
24 - Refrigerant pressure and temperature sender 5 -G829-
❑ ⇒ Rep. gr. 87; Removing and installing refrigerant pressure and temperature sender 5 G829
❑ 40 Nm
3.5
Assembly overview – heat exchanger
for high-voltage battery, R1234yf
3.5.1
Assembly overview - heat exchanger for high-voltage battery
3. Refrigerant circuit
23
2024 VW ID.4 Owner's Manual
