Teardown: The BMW / Harman IDC23H Infotainment Unit (B423)

Another day, another teardown - and the first blog post of 2026! Today we’ll be looking at the BMW IDC23H infotainment unit, manufactured by Harman Becker. The IDC23H is one of the newest infotainment units from BMW, as of January 2026. The design is based on the previous-generation MGU22/MGU22H, and is used in a wide variety of BMW models - this unit in particular was found in one of BMW’s newest…