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      05-18-2020, 07:38 AM   #4
kavatski
First Lieutenant
Canada
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Drives: 2023 X3 30iX
Join Date: Jul 2019
Location: Nova Scotia

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I've had PPF on every new car going back to 2003 and wouldn't even consider going without it, even on a lease. It works extremely well and cars are so easily damaged by road debris. You didn't say where your X1 has the film, and you didn't say where you've noticed dirty edges, what they look like, or how large they are, so it's hard to determine how serious it is or what the cause and remedy would be.

Generally, the film edges can get dirty in two ways: you can get a buildup of wax or a similar product at the edges of the film; or, in places where the film hasn't adhered properly (often at sharp corners or in curved areas where the installer has tried to bend it too much), it can lift and create a spot where dirt and water can get underneath and cause it to look grubby.

If it's the former issue, you can fairly easily remove the excess wax to clean things up; if the latter, having the odd one of those spots isn't abnormal after an install, and the installer can address them, which usually involves cleanly cutting them out since they're typically small. However, if there are large areas where the film has lifted, that indicates a sloppy install and it really should be replaced. If that's what's happened to yours, I'd be going back to the dealer to discuss.
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