For Sale: Genuine BMW Z4 Leather Mesh Wind Deflector for BMW Z4/Z4M E85 Part Number B54.70.0.150.671 This item was an optional extra from BMW, it is obvious that it has rarely, if ever been used, as it is in like new condition. Comes complete with 2x clips and bag for storage. Very rare to find this item in this condition and not missing any clips.