ID.4 2021 ➤
Electrical system - Edition 02.2021
2.2
Removing and installing battery A
WARNING
Risk of highly caustic battery acid.
– Keep suitable counteragent ready, e.g. soapy water.
WARNING
Leaking battery acid.
Risk of burns to the body and corrosion of the vehicle.
– Wear protective gloves, protective clothing and safety gog‐
gles.
– Battery must not be tilted.
– Neutralise sulphuric acid as soon as possible.
WARNING
Escaping oxyhydrogen gas when charging and due to subse‐
quent degassing.
Danger of explosion
– Avoid sparking.
– Avoid short circuits.
– No open flames.
– No smoking.
– No open light.
– Dissipate any static charge by briefly touching door striker
pin.
– Only work on batteries in well ventilated rooms.
– Make sure that the bleeder hole is on the correct side.
WARNING
Danger of explosion when checking and charging battery or
when using it for jump starting.
– Do not test or charge batteries whose “ALI (Acid Level In‐
dicator)” is colourless/light yellow. Do not slave/jump start
the vehicle.
The fuse holder A -SA- will henceforth be referred to as “fuse
holder A”.
The battery -A- will henceforth be referred to as “battery”.
Removing
– Remove anti-vibration brace ⇒ General body repairs, exteri‐
or; Rep. gr. 50; Lock carrier; Removing and installing anti-vi‐
bration brace.
– Disconnect battery ⇒ Rep. gr. 27; Disconnecting and con‐
necting battery.
– Release locking lug -3-.
2. Battery
3
ID.4 2021 ➤
Electrical system - Edition 02.2021
– Remove cover for high-voltage connection on vehicle front
end -2-.
– Remove cover for high-voltage connection on vehicle front
end -1- from guide.
– Release retaining lugs -arrows-.
– Remove cover -1-.
– Unscrew nut -2-.
– Detach electrical wire -1-.
– Release retaining tabs on bracket for fuse holder A -1- in
direction of -arrow-.
4
Rep. gr.27 - Starter, current supply, CCS
ID.4 2021 ➤
Electrical system - Edition 02.2021
– Remove bracket for fuse holder A -1- and lay it aside with
electrical wires connected.
– Open cover for battery clamp for positive battery terminal
-1-.
– Loosen nut -2- several turns, and pull of battery clamp for
positive battery terminal -1-.
– Unscrew bolt -3-.
– Detach securing bracket -2-.
– Pull out battery -1- in direction of travel from battery tray and
remove upwards from engine compartment.
If the battery is renewed:
– Pull impact shield -2- in direction of -arrow- off battery -1-.
2. Battery
5
ID.4 2021 ➤
Electrical system - Edition 02.2021
All vehicles (continued)
Installing
Install in reverse order of removal, observing the following:
– Insert battery in battery tray -1- in such a way that bat‐
tery base strip makes contact at bottom and side of stop
-arrows-.
•
It should no longer be possible to move battery towards rear
or sides.
– Fit securing bracket -2-.
•
Make sure that the locking element on the securing bracket
engages in the recess in the battery base strip.
– Tighten bolt -3-.
– Check battery -1- is seated securely.
– Fit battery clamp for positive battery terminal -1-.
6
Rep. gr.27 - Starter, current supply, CCS
ID.4 2021 ➤
Electrical system - Edition 02.2021
– Tighten nut -2-.
– Connect battery ⇒ Rep. gr. 27; Disconnecting and connect‐
ing battery.
– ⇒ Rep. gr. 27; Adapting battery monitor control unit [J367]
Tightening torques
♦ ⇒ Rep. gr. 27; Assembly overview – battery
♦ ⇒ a2.4 nd installing fuse holder A [SA]”, page 152
2.3
Disconnecting and connecting battery
WARNING
Risk of highly caustic battery acid.
– Keep suitable counteragent ready, e.g. soapy water.
WARNING
Leaking battery acid.
Risk of burns to the body and corrosion of the vehicle.
– Wear protective gloves, protective clothing and safety gog‐
gles.
– Battery must not be tilted.
– Neutralise sulphuric acid as soon as possible.
WARNING
Escaping oxyhydrogen gas when charging and due to subse‐
quent degassing.
Danger of explosion
– Avoid sparking.
– Avoid short circuits.
– No open flames.
– No smoking.
– No open light.
– Dissipate any static charge by briefly touching door striker
pin.
– Only work on batteries in well ventilated rooms.
– Make sure that the bleeder hole is on the correct side.
The battery monitor control unit -J367- will henceforth be refer‐
red to as “battery monitor control unit”.
The battery -A- will henceforth be referred to as “battery”.
2. Battery
7
2024 VW ID.4 Owner's Manual
