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2019+ BMW 3 AND 4-SERIES FORUMS (G2x Generation) Local Forums UK Scratched passenger rear door window & B pillar

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      01-28-2025, 11:18 AM   #1
ha03274
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Scratched passenger rear door window & B pillar

Went out yesterday morning to my M340i and noticed a bird had done the biggest shit I've ever seen on the rear passenger window and B pillar which had hardened overnight. Have no access to a jet spray at home so decided to soak it with a copius amount quick detailer and used a microfibre to try and wipe it off, which in hindsight was a mistake as there must've been grit/stones within the bird shit and I've been left with a scratched B pillar (why do they make them piano black plastic ) and also passenger rear door window.

I can either get the B pillar attacked with a rotary machine and compound I guess or just buy a new one from BMW like the one below so not too devastated. However, I'm unsure what to do about the rear door window...it's left a couple of fairly big scratches I can feel when I run my finger over it but I can't work out if it's because the glass is tinted and perhaps this is what has been damaged or the glass itself is scratched. Is the OEM glass with privacy glass a film tint or is coloured glass (sorry if this is a stupid question!).

https://www.sytnerstevenagebmwparts....437465139.html

Anyone know whether factor tinted glass is just a film? Also if it isn't how much would a new window be? Going to call BMW tomorrow to find out and how much labour will be but interested if anyone has had similar happen to them.
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      01-28-2025, 12:13 PM   #2
Bianchi Dave
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I've had good results with the CarPro Ceriglass kit, even doing it by hand.

It's hard work but probably better results with a DA polisher.
Would obviously also depend how deep the scratches in the glass are.

Fairly certain the factory glass is tinted during production and not a film.
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      01-29-2025, 06:49 AM   #3
a.summers86
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Quote:
Originally Posted by ha03274 View Post
Went out yesterday morning to my M340i and noticed a bird had done the biggest shit I've ever seen on the rear passenger window and B pillar which had hardened overnight. Have no access to a jet spray at home so decided to soak it with a copius amount quick detailer and used a microfibre to try and wipe it off, which in hindsight was a mistake as there must've been grit/stones within the bird shit and I've been left with a scratched B pillar (why do they make them piano black plastic ) and also passenger rear door window.

I can either get the B pillar attacked with a rotary machine and compound I guess or just buy a new one from BMW like the one below so not too devastated. However, I'm unsure what to do about the rear door window...it's left a couple of fairly big scratches I can feel when I run my finger over it but I can't work out if it's because the glass is tinted and perhaps this is what has been damaged or the glass itself is scratched. Is the OEM glass with privacy glass a film tint or is coloured glass (sorry if this is a stupid question!).

https://www.sytnerstevenagebmwparts....437465139.html

Anyone know whether factor tinted glass is just a film? Also if it isn't how much would a new window be? Going to call BMW tomorrow to find out and how much labour will be but interested if anyone has had similar happen to them.
Glass is tinted as oppose to film.

That is why factory tinted glass looks far better than aftermarket film tints as the glass itself is tinted which avoids the unsightly lines/ slight bubbling around heater elements and the window logo in the bottom corner.
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      03-16-2025, 12:25 PM   #4
The_Tok'Ra
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Quote:
Originally Posted by Bianchi Dave View Post
I've had good results with the CarPro Ceriglass kit, even doing it by hand.

It's hard work but probably better results with a DA polisher.
Would obviously also depend how deep the scratches in the glass are.

Fairly certain the factory glass is tinted during production and not a film.
Just curious.... Did you apply by hand just using the little orange block that comes in the kit?

I have scratches on my windscreen from tiny little stones that were blown off a roof in high winds onto the windscreen, and then as I didn't know the stones were there, the wipers blades dragged the stones over the arc of the wiper blades.

The scratches don't look to be that bad, hopefully I can buff them out.

Would prefer to use a dual action polisher, but it's not a tool I own.

Thanks!
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      03-16-2025, 01:00 PM   #5
Bianchi Dave
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Quote:
Originally Posted by The_Tok'Ra View Post
Just curious.... Did you apply by hand just using the little orange block that comes in the kit?

I have scratches on my windscreen from tiny little stones that were blown off a roof in high winds onto the windscreen, and then as I didn't know the stones were there, the wipers blades dragged the stones over the arc of the wiper blades.

The scratches don't look to be that bad, hopefully I can buff them out.

Would prefer to use a dual action polisher, but it's not a tool I own.

Thanks!
Yes, just used the block that comes with the kit. It's bloody hard work, but should suffice as your scratches sound similar to what I had. Prepare for sore arms 💪
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      03-16-2025, 03:13 PM   #6
The_Tok'Ra
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Quote:
Originally Posted by Bianchi Dave View Post
Yes, just used the block that comes with the kit. It's bloody hard work, but should suffice as your scratches sound similar to what I had. Prepare for sore arms 💪
Excellent! Thank you! ☺
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