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August 29, 2025 Service bulletin

The electric actuator for the third row (3SR) seat changed design and part number, and is used in...

BMW technical service bulletin B521025 for 2025 BMW X7.

Bulletin number
B521025
Component
Seats
Summary
The electric actuator for the third row (3SR) seat changed design and part number, and is used in productionvehicles as of March 28, 2025. There are two such actuators at this seat row, one for the left seating position; and one for the right

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