BMW X1 SOS Call system failure - Battery replacement

Investigating a fixing the SOS call system failure on this 2018 BMW X1, Fault codes B7F341 & B7F343 emergency battery faults stored in ECALL Module. Fault message is down to a failed Battery. Step by step guide on how to replace the battery.

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Tools / equipment used :

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Torx socket set - https://diydaly.co.uk/products/10pc-3...
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Useful links:
Car Analytics - Vehicle information checker - https://tidd.ly/3B2PEbx

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