[steveww48]

Just finished this DIY. Ordered the part from Crown BMW and got great service-- ordered online in the morning and the part shipped the same day. Thanks, JD!

Like some people, I was having trouble getting the gray clip to release (this clip keeps the plug locked into the switch). Others have described the process as "rotating the clip" but I couldn't get the clip to rotate at all until I saw that the top of the plug has a slightly ridged area on the top, and the clip is in front of those ridges: press the ridges to release the clip, then rotate the clip. As you rotate the clip the plug will start to come out of the switch socket. I thought I had rotated the clip as far as it would go but the plug did not come out completely until I pushed on the clip with a bit of extra force-- there was a bit of a snap and the plug was out.

Everything went back together smoothly and the new switch works great. Thanks to the original poster and to everyone else who posted their suggestions and tips.