ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
– Pull off and remove refrigerant line -2-.
Installing
Install in reverse order of removal, observing the following:
– Install seals and captive fasteners free of oil.
– Carry out function “Open electrically actuated valves to
drain, evacuate or charge refrigerant circuit” using ⇒ Vehicle
diagnostic tester ⇒ Rep. gr. 00; Access to diagnoses.
– ⇒ Air conditioning systems with refrigerant R744 – General
notes; Rep. gr. 87; Working with air conditioner service sta‐
tion; Charging refrigerant circuit.
Tightening torques
♦ ⇒ Rep. gr. 87; Assembly overview – air intake unit of heater
and air conditioning unit
♦ ⇒ Rep. gr. 87; Assembly overview – refrigerant lines
3.29
Disconnecting/connecting refrigerant
lines from/to condenser/gas cooler,
R1234yf
3.29.1
Disconnecting/connecting refrigerant
lines from/to condenser
Special tools and workshop equipment required
♦ engine bung set -VAS 6122-
Disconnecting
Immediately seal any open lines and connections with clean
plugs from engine bung set -VAS 6122-.
– ⇒ Air conditioning systems with refrigerant R1234yf – Gener‐
al notes; Rep. gr. 87; Working with air conditioner service
station; Draining refrigerant circuit.
– Remove lock carrier ⇒ General body repairs, exterior; Rep.
gr. 50; Lock carrier; Removing and installing lock carrier.
– Remove front underbody cladding ⇒ General body repairs,
exterior; Rep. gr. 66; Underbody cladding; Removing and
installing front underbody cladding.
72
Rep. gr.87 - Air conditioning system
ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
CAUTION
Risk of frostbite from escaping pressurised refrigerant
Risk of frostbite on skin and other parts of the body
– Put on protective gloves.
– Put on safety goggles.
– Extract/drain refrigerant and then immediately open up re‐
frigerant circuit.
– Extract/drain refrigerant again if more than 10 minutes
have passed since initial extraction and refrigerant circuit
has not been opened up. Renewed evaporation has cre‐
ated pressure in the refrigerant circuit.
– Unscrew bolt -1-.
– Pull off refrigerant line -2-.
– Unscrew bolt -2-.
– Pull off refrigerant line -1-.
Connecting
Install in reverse order of removal, observing the following:
– ⇒ Air conditioning systems with refrigerant R1234yf – Gener‐
al notes; Rep. gr. 87; Working with air conditioner service
station; Charging refrigerant circuit.
Tightening torques
♦ ⇒ Rep. gr. 87; Assembly overview – condenser
♦ ⇒ Rep. gr. 87; Assembly overview – refrigerant lines
♦ ⇒ General body repairs, exterior; Rep. gr. 50; Lock carrier;
Assembly overview – lock carrier
3. Refrigerant circuit
73
ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
♦ ⇒ General body repairs, exterior; Rep. gr. 66; Underbody
cladding; Assembly overview – underbody cladding
3.30
Disconnecting/connecting refrigerant
lines from/to condenser/gas cooler,
R744
3.30.1
Disconnecting and connecting refriger‐
ant lines on gas cooler
Special tools and workshop equipment required
♦ engine bung set -VAS 6122-
Disconnecting
Immediately seal any open lines and connections with clean
plugs from engine bung set -VAS 6122-.
– Carry out function “Open electrically actuated valves to
drain, evacuate or charge refrigerant circuit” using ⇒ Vehicle
diagnostic tester ⇒ Rep. gr. 00; Access to diagnoses.
– ⇒ Air conditioning systems with refrigerant R744 – General
notes; Rep. gr. 87; Working with air conditioner service sta‐
tion; Draining refrigerant circuit.
– Remove lock carrier ⇒ General body repairs, exterior; Rep.
gr. 50; Lock carrier; Removing and installing lock carrier.
– Remove front underbody cladding ⇒ General body repairs,
exterior; Rep. gr. 66; Underbody cladding; Removing and
installing front underbody cladding.
CAUTION
Risk of frostbite from escaping pressurised refrigerant
Risk of frostbite on skin and other parts of the body
– Put on protective gloves.
– Put on safety goggles.
– Extract/drain refrigerant and then immediately open up re‐
frigerant circuit.
– Extract/drain refrigerant again if more than 10 minutes
have passed since initial extraction and refrigerant circuit
has not been opened up. Renewed evaporation has cre‐
ated pressure in the refrigerant circuit.
– Unscrew bolt -1-.
– Pull off refrigerant line -2-.
74
Rep. gr.87 - Air conditioning system
2024 VW ID.4 Owner's Manual
