When I said 'a few minutes', it was a vast understatement. I sanded the pi$$ out of it. These lights had been done a few years ago by the PO and he said he was nervous he'd sand right through the lens. I'll do it again in the spring once the road shite is cleared away.

According to the Mothers bumf, the polish has protection built in. That said, a clear UV film can't hurt. The lamps on my E60 are still perfect and have never been polished.

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'04 X5 3.0 5AT with 300,000+km - Black
'08 535xi 6AT with 290,000+km - Titanium Silver