Dirty Headlight Projector Lens

[Bubbles]

Decided to crack open my headlights for refurb and the lens were coated with this film. Anyone know what causes this?

[Pheonix]

What material did you use? Most likely resulted of the material outgasing and leave a film of residue on the lense.

[Bubbles]

Originally Posted by Pheonix

What material did you use? Most likely resulted of the material outgasing and leave a film of residue on the lense.

The headlight was stock, I want to avoid what a caused it. The film was thick enough to impact brightness.

I bet a number of cars have this given the average car age on the road.

[smyles]

Originally Posted by Bubbles

...Anyone know what causes this?

Most likely reflector coating. Check them for burned spots (and replace accordingly).

[Bubbles]

Originally Posted by smyles

Most likely reflector coating. Check them for burned spots (and replace accordingly).

No burn spots but I’d like to buy new ones. Who sells the reflector?

I have been tuning with a clear zkw lens and the cutoff and intensity has improved.

[smyles]

Originally Posted by Bubbles

No burn spots but I’d like to buy new ones. Who sells the reflector?

I have been tuning with a clear zkw lens and the cutoff and intensity has improved.

It's been a while since I explored the subject, but back then the only reasonable option was to source Bosch AL reflectors from vendors in Europe. DO NOT get cheap Chinese plastic ones.

Also, while a sharp cutoff looks cool, there's a theory that it's not very good for human eye and a smother dark/bright transition is better for our vision.

[Bubbles]

Originally Posted by smyles

It's been a while since I explored the subject, but back then the only reasonable option was to source Bosch AL reflectors from vendors in Europe. DO NOT get cheap Chinese plastic ones.

Also, while a sharp cutoff looks cool, there's a theory that it's not very good for human eye and a smother dark/bright transition is better for our vision.

I’ll check out the eu forums. I agree that diffused light is easier to see at night. I’ve always wanted to see what all the hype was about on cutoffs.