My car came from America and the first question I had was how to repair it. I applied to several service stations and found more or less suitable specialists. Everything went well until it came to solving problems with the battery squib. As it turned out on all more or less modern BMWs, including i4, which cut power in case of an accident. Finding information on this issue is basically quite difficult. And this was the first time that no useful information was found on Wikipedia. I found something more or less digestible only in this article
https://hodovik.com/novosti/piropatron-akb-ili-avarijnyj-razmykatel-tsepi-akb.html.
Searching for this disconnector took a lot of time, as finding it is basically not an easy task. And after I learned about the cost of the original, then the task had to be reformatted and I started looking for cheaper analogs. It should be borne in mind that even replacing the squib may not solve the problem and the panel will issue a check. The first squib did not work at all, I ordered the second one on the same site as the article
https://hodovik.com/katalog/23778-piropatron-akb.html At the moment I am at the stage of installation and testing.
My question is as follows. Does anyone know why the BMW i4 does not come to life after replacing the battery squib and how to solve this?