ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
Stage Bolts
Tightening torque/angle specification
1.
2.
-1- to -24- 50 Nm +90°
-25- to -28- 40 Nm +180°
4.3
Visual inspection of high-voltage bat‐
tery 1 [AX2]
CAUTION
The high-voltage battery can become extremely hot. This can
cause injuries.
Take care not to burn your hands.
– Put on protective gloves.
Note
Inform the high-voltage expert if any problems arise or entries in
the event memory appear.
Inspect the high-voltage battery 1 -AX2- for the following:
– Cracks in upper or lower parts of battery housing
– Deformation of upper or lower parts of battery housing
– Colour changes due to temperature impact and tarnishing of
battery housing
– Escaping electrolyte
– Damage to high-voltage contacts
– Legible and available information and warning stickers
– Fitted potential equalisation line
– Corrosion damage
– ⇒ Rep. gr. 93; Diagnosis of high-voltage battery 1 [AX2].
4.4
Diagnosis of high-voltage battery 1
[AX2]
Important
•
The high-voltage battery 1 remains installed in the vehicle
during the diagnosis.
– Carry out diagnosis of high-voltage battery using ⇒ Vehicle
diagnostic tester⇒ Rep. gr. 00; Access to diagnoses.
4.5
Searching for leaks from high-voltage
battery
Note
Only search for leaks from high-voltage battery 1 -AX2- if the
leakage test failed.
Note
Leaks are indicated by bubbles.
– Build up pressure. ⇒ Rep. gr. 93; Leakage test of high-volt‐
age battery 1 [AX2].
4. High-voltage battery unit
119
ID.4 2021 ➤, ID.3 2020 ➤
Electric rear-wheel drive EIP220 and all-wheel drive EIA200, EIP220 - Edition 11.2021
– Spray leak detection spray ⇒ Electronic parts catalogue (ET‐
KA) all around the contact surfaces of the upper and lower
parts of the battery housing.
4.6
Leakage test of high-voltage battery 1
[AX2]
Special tools and workshop equipment required
♦ Directional valve -VAS 691 005/1-
♦ Pressure and vacuum pump -VAS 671 005-
♦ Pressure sensor -V.A.G 1397B-
♦ Sealing plug -T10607-
Important
•
A leakage test must always be carried out before opening
and after sealing the high-voltage battery 1 -AX2-.
•
•
High-voltage battery 1 -AX2- is acclimatised.
The leakage test and acclimatisation must be carried out at
constant ambient temperature.
– Check that gasket -arrows- is correctly seated.
– Check connector strip for moisture, and carefully wipe it dry
with a lint-free cloth.
– Leakage test is performed using ⇒ Vehicle diagnostic test‐
er⇒ Rep. gr. 00; Access to diagnoses.
4.7
Removing and installing high-voltage
battery 1 [AX2], 48, 55, 62 kWh
4.7.1
Removing and installing high-voltage
battery 1 [AX2]
Special tools and workshop equipment required
♦ Hexagon socket bit,16 mm -VAS 262 017-
♦ drip tray -VAS 6208-
♦ engine bung set -VAS 6122-
♦ insulating mat -VAS 6762/44-
♦ scissor-type assembly platform -VAS 6131B-
120
Rep. gr.93 - Electric drive systems
2024 VW ID.4 Owner's Manual
