Hi DRH, as mine was such a pain to get to I just wrapped it in tape by feel. I'm afraid I don't know how it disconnects but I'd guess that it is a sealed unit and you would need to trace the wires back into loom. Hi Jonathan, I couldn't find that old post either. My car is a 2016 160. I'm pretty sure that other post with the beeper behind the speedometer was from a different recent model. Thanks for tidying up my photo, photo editing on my phone is not great. Paul.