It is the OEM deflector for the Lamella roof. I found one at a local yard that was in pretty rough shape, but user Wallyo mentioned that he found two W163s with the Lamella roof in a self-serve yard in his area. He pulled this one and sent it to me. I put some elbow grease into cleaning up the brackets, caps, and weatherstrip. The deflector itself is in excellent condition for nearly 20 years old. It has a few mild scratches and scuffs, but nothing horrible.Looks good ! Have you had her up to speed to see if you get any buffeting or major wind noise ?
Is that a OEM deflector for the Lamella option ?
And you are right.......very rare and yours looks to be in like-new condition.