Reviving this old thread. The Fairbourne Screen for the M3W was a popular choice some years ago but is no longer available from Fairbourne, although many are still in use. “Mapman” contacted me to ask if I knew where replacement screens could be obtained, as his had cracked at the lower outboard corner. I know of a number of places that have cut replacement screens from a template but not any off the shelf suppliers. Mapman contacted
https://www.plastics4performance.com based in Bolton and supplied a screen as a template. They now have a digital record of it and can cut screens on request using high quality 4.8mm thick Polycarbonate with a scratch resistant coating. They list them for £210 a pair. These are maybe not the cheapest but they are good, very clear and well finished, better than others I have seen. You can probably negotiate a discount if a few owners get together and do a bulk order, we did on two sets.
When replacing my cracked screen I have incorporated a couple of other improvements suggested by other owners. The cracks at the lower edge corner are common on the Fairbourne screens and seem to be caused by vibration. I have tried a modification suggested by Nigel Pitt, a small support bracket mounted under the rear view mirror arms, photo below. Some heat shrink sleeve over the metal to prevent it rubbing the screen. Nigel has had this fitted to his car for two years with no signs of cracking yet.
The other improvement is cosmetic, some 15mm gloss black pin striping vinyl tape, available on eBay. This hides the rather messy looking join between the screen and the car body and is waterproof. Thanks to “Big Steve” for this suggestion.
![[Linked Image]](https://www.tm-img.com/images/2026/07/26/IMG_4889.jpg)