I think what StephenVA was saying was that there is the small screen inset missing, which allows the cap to vent properly. But a pin hole will do the same thing.

Lord (and BMW) only knows why some markets get a screen but no vent and others are the other way around.

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Wayne
2005 BMW X5 3.0d (b 02/05)
2001 BMW F650GS Dakar (b 06/01)