In this video I show you how to replace a very common and often forgotten coolant fitting on your N series BMW engine. This procedure would be similar on all N5X series 6 cylinder engines and N2X 4 cylinder engines.
This would most certainly leave you on the side of the road if it fails. The factory pieces is made out of plastic and the upgraded piece I install is made out of aluminum and will not fail in the future.
You can purchase the fitting here (affiliate):
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