How to Replace the Battery in a BMW Blade Key?

1 Answers
DeElijah
07/29/25 9:33pm
To replace the battery in a BMW blade key, follow these steps: First, pull out the mechanical key. Then, you will see a groove. Use the mechanical key to pry open this groove, which will allow you to remove the outer casing and replace the battery. Taking the BMW 5 Series 2021 525Li M Sport Package as an example: It is a mid-to-large-sized sedan under BMW Brilliance, powered by gasoline, equipped with a 2.0T turbocharged engine, and paired with an 8-speed automatic transmission. The front suspension of the BMW 5 Series 2021 525Li M Sport Package is a double-wishbone independent suspension, and the rear suspension is a multi-link independent suspension.
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