ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Install charging unit.
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-energise high-voltage system.
Tightening torques
♦ ⇒ Rep. gr. 93; Assembly overview – charging unit for high-
voltage battery, rear-wheel drive
13.4
Removing and installing charging
unit 1 for high-voltage battery [AX4],
all-wheel drive
13.4.1
Removing and installing charging
unit 1 for high-voltage battery [AX4]
Special tools and workshop equipment required
♦ drip tray -VAS 6208-
The charging unit 1 for high-voltage battery -AX4- will hence‐
forth be referred to as “charging unit”.
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-energising high-voltage system.
– Disconnect battery ⇒ Electrical system; Rep. gr. 27; Battery;
Disconnecting and connecting battery.
– ⇒ Rep. gr. 19; Draining coolant.
– Remove rear underbody cladding ⇒ General body repairs,
exterior; Rep. gr. 66; Underbody cladding; Removing and
installing rear underbody cladding.
– Remove rear centre underbody cladding ⇒ General body re‐
pairs, exterior; Rep. gr. 66; Underbody cladding; Removing
and installing rear centre underbody cladding.
– Remove skid plate ⇒ General body repairs, exterior; Rep.
gr. 66; Underbody cladding; Removing and installing skid
plate.
– Loosen anti-roll bar ⇒ Running gear, axles, steering; Rep.
gr. 42; Anti-roll bar; Removing and installing anti-roll bar.
– Place drip tray -VAS 6208- under rear section of vehicle.
262
Rep. gr.93 - Electric drive systems
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Open clamps -3-, and pull coolant hoses -4- off battery
charger -1- and coolant hose -6- off rear motor.
– Unscrew nut -5-.
– Unscrew nut -11-.
– Unscrew bolts -9-.
– Disconnect electrical connector -7-.
– Disconnect electrical connector -1-, -2- and -4-.
– Unscrew potential equalisation line.
– Protect connector receiver and coolant connections to pre‐
vent the ingress of dirt.
– Unscrew bolts -arrows-.
13. Charging unit for high-voltage battery
263
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Remove charging unit -1- with bracket downwards.
– Place charging unit -1- on a clean surface.
– Unscrew bolts -1-.
– Detach bracket -2- with voltage converter -A19-.
– Unscrew bolts -arrows-.
– Remove bracket -4- from charging unit -1-.
– Unscrew bolts -arrows-.
– Remove bracket -2- from charging unit -1-.
Installing
Install in reverse order of removal, observing the following:
– Position battery charger -1- on a clean surface with coolant
connections facing upwards.
264
Rep. gr.93 - Electric drive systems
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Do not remove transportation caps.
– Seal connector mounting -2- and -3- on charging unit -1-
with wax.
– Remove major soiling between housing and connector
mounting -2- using compressed air and a lint-free cleaning
cloth.
NOTICE
Risk of damage to the charging unit.
– Only the indicated surface may be sealed with wax. Other
areas must be protected from wax.
– Seal surface between housing and connector mounting -2-
all around using applicator nozzle and wax ⇒ Electronic
parts catalogue (ETKA).
13. Charging unit for high-voltage battery
265
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Check application of wax for breaks in wax film along sur‐
face between housing and connector receiver.
– If there are breaks in the wax film, seal surface between
housing and connector mounting -2- again using applicator
nozzle and wax ⇒ Electronic parts catalogue (ETKA).
NOTICE
Adhesion of wax impaired.
– Wax must be given at least 10 minutes to dry until installa‐
tion is continued.
– Install charging unit.
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-energise high-voltage system.
Tightening torques
♦ ⇒ Rep. gr. 93; Assembly overview – charging unit for high-
voltage battery, rear-wheel drive
266
Rep. gr.93 - Electric drive systems
2024 VW ID.4 Owner's Manual
