MK6 R, Factory intake box, Is something missing here?

[aeronaticaa]

Found this empty plug under the intake filter location, is this just a water drain or is there something missing here?

 

[TimS]

It appears to be a drain, or maybe a vent to get hot air from the exhaust to help with cold start? My stock intake has it, too.

 

[BudgetPhoenix]

Idk about the Golf Rs but the 2.0T TSI engines have a drain tube for water that connects to the bottom of the factory intake box and routes into the bumper.
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