Table of Contents > Electric drive systems > High-voltage battery unit > Leakage test of high-voltage battery 1 [AX2]

VW ID.4 Electric rear-wheel and all-wheel drive ➜ Leakage test of high-voltage battery 1 [AX2]

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  

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