[Solved] Where's the key code hidden on my BMW 4Series 428i Convertible for key programming?

1670 views - Last reply: May 05, 2025
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Need the factory key code to program a key for my BMW 4Series 428i Convertible

Hello! We've developed a VIN-based tool to help you get your key code for the BMW 4Series 428i Convertible. Check it out here: VIN Key Code Generator.

Replies (3)

Trying to reprogram a new key for my BMW 4Series 428i Convertible—need the code first.

This just might solve my BMW 4Series 428i Convertible's ignition issue.

Trying to figure this out for my BMW 4Series 428i Convertible too!

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