ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
Tightening torques
♦ ⇒ Rep. gr. 87; Assembly overview - refrigerant lines
♦ ⇒ Rep. gr. 87; Assembly overview – heater and air condition‐
ing unit
♦ ⇒ Rep. gr. 87; Assembly overview – evaporator housing
♦ ⇒ General body repairs, interior; Rep. gr. 70; Central tube for
dash panel; Assembly overview – central tube for dash panel
7.7
Removing and installing evaporator,
R1234yf
7.7.1
Removing and installing evaporator
Special tools and workshop equipment required
♦ engine bung set -VAS 6122-
Removing
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 heater and air conditioning unit ⇒ Rep. gr. 87; Re‐
moving and installing heater and air conditioning unit.
– Unscrew bolts -2-.
– Remove evaporator housing cover -1-.
– Pull evaporator -1- out of evaporator housing.
– Remove expansion valve -3- ⇒ Rep. gr. 87; Removing and
installing expansion valve.
7. Front heater and air conditioning unit
141
ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
– Detach foam spacer -2-.
– Remove seal -4-.
Installing
Install in reverse order of removal, observing the following:
– Before inserting, clean evaporator housing and evaporator.
– Before inserting evaporator, check and clean condensation
drain ⇒ Rep. gr. 87; Checking condensation drain.
– Check tongue-and-groove joint between upper and lower
sections of evaporator housing for damage and proper seat‐
ing.
– If evaporator was renewed, refrigerant circuit must be top‐
ped up with 10 ml of refrigerant oil.
Tightening torques
♦ ⇒ Rep. gr. 87; Assembly overview – refrigerant lines
♦ ⇒ Rep. gr. 87; Assembly overview – heater and air condition‐
ing unit
7.8
Removing and installing evaporator,
R744
7.8.1
Removing and installing evaporator
– Evaporator -3- is currently not available separately ⇒ Elec‐
tronic parts catalogue (ETKA).
7.9
Dismantling and assembling heater
and air conditioning unit, R1234yf
7.9.1
Dismantling and assembling heater
and air conditioning unit
Individual disassembly and reassembly of heater and air con‐
ditioning unit is currently not intended ⇒ Electronic parts cata‐
logue.
142
Rep. gr.87 - Air conditioning system
2024 VW ID.4 Owner's Manual
