I'd do search but I though it might've been disconnected by whoever worked last on the car, therefore I didn't think search would yield anything or how to word the search.

I'd never though to be the breather tube for front diff as I'd expected it to be position much lover. But now it makes sense as the new valve covers were installed just before I bough it and it seems that they didn't put them back.

Thanks guys.

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2010 BMW M6 * Black Saphire Metallic * Full Black Merino Leather
2019 BMW X3 M40i * Alpine White * Mocha Leather