Figured this will help some others. My drivers door started clicking so the door strap check needed replacing. This is a simple 15min job. You will need to remove the lower speaker cover (just pops out) and remove the speaker.

Replacement part number is 2197200016 and cost was $52 (July 2021) through MercedesBenzStarParts.com

Tools: 10mm and E10 socket. T30 torx bit socket.