ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
11.2
Overview of fitting locations – potential
equalisation lines, rear-wheel drive
11.2.1
Overview of fitting locations - potential equalisation lines
1 - Potential equalisation for
three-phase current drive -
VX54-
❑ ⇒ Rep. gr. 93; Assem‐
bly overview – electric
drive motor
2 - Potential equalisation for
charging unit 1 for high-volt‐
age battery -AX4-
❑ ⇒ Rep. gr. 93; Assem‐
bly overview – charg‐
ing unit for high-volt‐
age battery, rear-wheel
drive
3 - Potential equalisation for
high-voltage battery 1 -AX2-
❑ ⇒ Rep. gr. 93; Assem‐
bly overview – high-
voltage battery, instal‐
led, 48, 55, 62 kWh
4 - Potential equalisation for
high-voltage heater (PTC) -
ZX17-
❑ ⇒ Heating, air condi‐
tioning; Rep. gr. 87;
Front heater and air
conditioning unit; Re‐
moving and installing
high-voltage heater
(PTC) ZX17
5 - Potential equalisation for
voltage converter -A19-
❑ ⇒ Rep. gr. 93; Assem‐
bly overview – voltage
converter, rear-wheel
drive
6 - Potential equalisation for PTC heater element 3 -Z132-
❑ ⇒ Heating, air conditioning; Rep. gr. 87; Coolant circuit; Removing and installing PTC heater element 3
Z132 - vehicles with rear-wheel drive
7 - Potential equalisation for air conditioner compressor -VX81-
❑ ⇒ Heating, air conditioning; Rep. gr. 87; Air conditioner compressor; Exploded view - air conditioner
compressor
11. Potential equalisation lines
249
2024 VW ID.4 Owner's Manual
