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Funny question on 451 Panoramic roof sparkling

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  • Funny question on 451 Panoramic roof sparkling

    Its been winter time since I owned my latest Passion Fortwo, and today it was the first really sunny day of driving (OK, its Scotland, so sunny days are very rare ).

    Anyway the plastic roof is very clear as you know, but just when the car moved round with the sun, time: midday, the roof began to sparkle, like loads of little bright sparkles, I though the thing had shattered or something, gave me a real fright. Then with the car back at another angle to the sun, it returned to normal, ie, clear.

    I really looked hard at the roof from inside and its totally clear, no cracks or anything.

    Now can you put my mind at rest, and tell me you also get this phenomena?

    Also what causes this sparkle at a certain angle to the sun?
    Last edited by ColSmart; 04-03-14, 03:56 PM.

  • #2
    Re: Funny question on 451 Panoramic roof sparkling

    Micro cracks in the plastic.

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    • #3
      Re: Funny question on 451 Panoramic roof sparkling

      Is that quite normal right away from new, or is it fatigue after a few years driving ?

      I assume all 451 Panoramic roofs have this eventually?

      (Sorry for loads of questions, but this is my first Fortwo with clear roof, my last was a PURE so had solid roof).
      Last edited by ColSmart; 04-03-14, 04:02 PM.

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      • #4
        Re: Funny question on 451 Panoramic roof sparkling

        Our 2008 Ltd 2 is exactly like that,

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        • #5
          Re: Funny question on 451 Panoramic roof sparkling

          The polycarbonate they used didn't have sufficient UV protection so they get micro fractures.
          It's a standard "feature" and it'll be a long time before the roof leaks.

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          • #6
            Re: Funny question on 451 Panoramic roof sparkling

            Thanks guys (sigh of relief is heard)

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