So, I managed to source the correct size protectors and finally fitted them.
This proved challenging as I wanted to retain the stock/matte finish and this could only be attained with a plastic protector. I bought the Brotect screen protector from Amazon, it took a few days as it came from Germany.
[The forum isn't allowing me to post a direct link to the protector. Paste the part number into the Amazon search: B0756YQTJR]
I had the issue of identifying the correct size of protector as for some reason nobody describes it in the known convention as "MMI Navigation Plus" or give its dimensions. Instead, it is labelled as "A4 F4 2015 MIB-HS". I'm guessing the MIB-H is the standard size display.
I taped off the bezel to be safe as I tried some IPA to no effect.
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In the end, I used the same wipe which caused the damage to remove the rest of the coating. This took a while and needed a steady pressure to get all of it off.
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After removing the coating I made sure to get as much dust off the screen as possible and then sat still in the car for a few minutes for any floating dust to settle. I applied the screen protector by peeling off the backing, lining up the top edges and allowing it to adhere by itself. I didn't force it.
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I got a relatively good adhesion with only one air bubble (thanks phone shop
). I used a cloth around my finger and pushed the bubble to the edge by applying steady pressure.
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All in all, I got a good finish. I'm pleased with the quality of the protector and it is quite forgiving if you don't get every speck of dust off the display.
I could have peeled it back and used a piece of sticky tape to get every last speck off but I was content with the finish and they're barely noticeable.
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