ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Unscrew bolts -2-.
– Remove battery regulation control unit -J840- -1-.
Installing
Install in reverse order of removal, observing the following:
Tightening torques
♦ ⇒ Rep. gr. 93; Assembly overview – switching unit for high-
voltage battery, 48, 55, 62 kWh
4.18
Charging and discharging battery mod‐
ules
Special tools and workshop equipment required
♦ module balancer -VAS 6910-
DANGER
Danger to life from high voltage.
Electric shocks or arcs may lead to serious injuries or death.
– Suitable personal protective equipment (PPE) must be
worn for the subsequent work steps.
– The subsequent work steps must be supervised by an
additional specialist with appropriate qualification.
– Outside the hazard area, the additional authorised special‐
ist can support the HVE as required within the scope of his
or her qualification.
Put on the required protective equipment for the subsequent
work steps:
♦ Arc flash resistant clothing (at least APC 2, at least 318 kJ)
♦ Helmet with arc flash resistant visor (at least APC 2, at least
318 kJ)
♦ Arc flash resistant gloves with nitrile glove liners (at least
APC 2, at least 318 kJ), insulating up to at least 500 V
♦ Safety shoes with ESD protection
– ⇒ Rep. gr. 93; Opening high-voltage battery 1 [AX2].
– ⇒ Rep. gr. 93; Opening electrical circuit, 48, 55 kWh.
Important
•
If a new battery module is installed, it is essential to adapt
the charge level using the module balancer -VAS 6910-.
4. High-voltage battery unit
159
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Remove battery module ⇒ Rep. gr. 93; Overview of fitting
locations – battery modules, 48, 55 kWh.
– Start autonomous software.
Note
The autonomous software will guide the user through the re‐
maining work steps regarding the charging/ discharging proce‐
dure with the module balancer -VAS 6910-.
4.19
Renewing lower part of battery housing
Removing
– ⇒ Rep. gr. 93; Visual inspection of high-voltage battery 1
[AX2].
– ⇒ Rep. gr. 93; Diagnosis of high-voltage battery 1 [AX2].
– Remove high-voltage battery 1 -AX2- ⇒ Rep. gr. 93; Re‐
moving and installing high-voltage battery 1 [AX2], 48, 55,
62 kWh.
– ⇒ Rep. gr. 93; Leakage test of high-voltage battery 1 [AX2].
– ⇒ Rep. gr. 93; Opening high-voltage battery 1 [AX2].
– ⇒ Rep. gr. 93; Voltage and insulation measurement.
– ⇒ Rep. gr. 93; Opening electrical circuit, 48, 55 kWh.
– Remove connecting element ⇒ Rep. gr. 93; Removing and
installing connecting element, 48, 55 kWh.
– Remove battery regulation control unit -J840- ⇒ Rep.
gr. 93; Removing and installing battery regulation control unit
[J840].
– Remove switching unit for high-voltage battery, negative ter‐
minal -SX7- ⇒ Rep. gr. 93; Removing and installing switch‐
ing unit for high-voltage battery, negative terminal [SX7], 48,
55, 65 kWh.
– Remove switching unit for high-voltage battery, positive ter‐
minal -SX8- ⇒ Rep. gr. 93; Removing and installing switch‐
ing unit for high-voltage battery, positive terminal [SX8], 48,
55, 62 kWh.
– Remove battery modules control unit ⇒ Rep. gr. 93; Remov‐
ing and installing battery modules control unit.
– Remove battery modules alternately ⇒ Rep. gr. 93; Remov‐
ing battery module.
– Remove potential equalisation lines on high-voltage bat‐
tery 1 -AX2- ⇒ Rep. gr. 93; Overview of fitting locations –
potential equalisation lines, all-wheel drive.
Installing
– Renew lower part of battery housing.
– Install potential equalisation lines to high-voltage battery 1
-AX2- ⇒ Rep. gr. 93; Overview of fitting locations – potential
equalisation lines, all-wheel drive.
Important
•
When installing the battery modules, always install one bat‐
tery module completely, and then proceed with the next one.
– ⇒ Rep. gr. 93; Installing battery module.
– Install battery modules control unit ⇒ Rep. gr. 93; Removing
and installing battery modules control unit.
160
Rep. gr.93 - Electric drive systems
2024 VW ID.4 Owner's Manual
