if you've removed the tinting film you'll have buggered it. only solution really will be to get the window re-done, you can patch a bit in but it will be noticeable unless you hide the join along the heater lines.

I had one of those 'vehicle register' stickers on the inside of the windows, just over the glass sekurit logo. Peeled off the white bit, but left a very hard residue, dunno if it was film or the glue.

I did try white spirit, but didn't shift it.

Managed to get it off by using servisol label remover and a scraper. All clean now with zero trace. Think the servisol is citrus based as it had an orange smell to it. Bought from Maplin for £4.99.

heat the offending area and use alcohol based wipes /sterets. they work a treat. smell nice too or alcohol gel used for cleaning hands or for drinking by alchy holci patients in hospital Tisha x