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Will a cracked windscreen fail the NCT?

I booked my car in for its NCT recently and now a crack has appeared in my windscreen. Does this mean it will fail the test if it is not replaced?

Filed under NCT - Asked by Patrick Mcnally (Mayo) - Fri, 17 Mar 2017 13:57


Hi Patrick,

It depends where on the window the crack is and how big it is. Click here to view the official NCT testing manual - go to page 26 and it clearly shows how cracks in the windscreen are assessed.

Best of luck

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