ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
1 - PTC heater element 3 -
Z132-
❑ ⇒ Rep. gr. 87; Remov‐
ing and installing PTC
heater element 3 Z132
2 - Bracket
3 - Bolt
❑ 3x
❑ 10 Nm
4 - Bolt
❑ 3x
❑ 20 Nm
5 - Nut
❑ 8 Nm
6 - Electrical connector
7 - Electrical connector
❑ High-voltage wire
8 - Bolt
❑ 3x
❑ 10 Nm
9 - Bracket
10 - Warning label
❑ ⇒ Motor; Rep. gr. 93;
Warning labels; Check‐
ing warning labels
9.3
Removing and installing PTC heater el‐
ement 3 [Z132], rear-wheel drive
9.3.1
Removing and installing PTC heater el‐
ement 3 [Z132]
Removing
DANGER
High voltage can cause fatal injury.
Danger of severe or fatal injuries from electric shock or elec‐
tric arcs.
– Have a high-voltage technician (HVT) or a high-voltage
expert (HVE) de-energise the high-voltage system.
– ⇒ Rep. gr. 93; De-energise high-voltage system.
– Remove air intake unit of heater and air conditioning unit
⇒ Rep. gr. 87; Removing and installing air intake unit of
heater and air conditioning unit.
9. Coolant circuit
169
ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
– ⇒ Rep. gr. 19; Cooling system/coolant; Draining coolant
– Detach clamps -3-, and pull off coolant hoses -2-.
– Unscrew nut -3-.
– Remove potential equalisation line -2-.
– Unclip cable retainers of electrical connectors -5-.
– Disconnect electrical connectors -4- and -6-.
– Detach electrical connector -2- from bracket -1-.
– Push aside coolant hoses -2- and -4-, and unscrew bolts -3-.
170
Rep. gr.87 - Air conditioning system
ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
– Remove heater element (PTC) 3 -Z132--1-.
Installing
Install in reverse order of removal, observing the following:
– Observe installation markings on heater element (PTC) 3
-Z132- and coolant hoses.
– Check screw connections of potential equalisation line, and
clean them if necessary ⇒ Electrical system; Rep. gr. 97;
Cleaning contact surfaces; Cleaning contact surfaces.
Important
•
Contact surfaces must be free of dirt, rust and grease.
– Connect potential equalisation line -2-, and tighten nut -3-.
– Connect electrical connectors -4- and -6-.
– ⇒ Rep. gr. 19; Cooling system/coolant; Filling cooling system
WARNING
High voltage can cause fatal injury.
Danger of severe or fatal injuries from electric shock or elec‐
tric arcs.
– Have a high-voltage technician (HVT) or a high-voltage
expert (HVE) re-energise the high-voltage system.
– ⇒ Rep. gr. 93; Re-energising high-voltage system.
Tightening torques
♦ ⇒ Rep. gr. 87; Assembly overview – high-voltage heater
(PTC)
9. Coolant circuit
171
ID.4 2021 ➤
Heating, air conditioning system - Edition 09.2021
9.4
Removing and installing PTC heater el‐
ement 3 [Z132], all-wheel drive
9.4.1
Removing and installing PTC heater el‐
ement 3 [Z132]
Removing
DANGER
High voltage can cause fatal injury.
Danger of severe or fatal injuries from electric shock or elec‐
tric arcs.
– Have a high-voltage technician (HVT) or a high-voltage
expert (HVE) de-energise the high-voltage system.
– ⇒ Rep. gr. 93; De-energise high-voltage system.
– Remove air intake unit of heater and air conditioning unit
⇒ Rep. gr. 87; Removing and installing air intake unit of
heater and air conditioning unit.
– ⇒ Rep. gr. 19; Cooling system/coolant; Draining coolant
– Detach clamps -3-, and pull off coolant hoses -2-.
– Unscrew nut -2-.
– Remove potential equalisation line -3-.
– Unclip cable retainers of electrical connectors -5-.
– Disconnect electrical connectors -1- and -4-.
– Detach electrical connector -2- from bracket -1-.
172
Rep. gr.87 - Air conditioning system
2024 VW ID.4 Owner's Manual
