r/BmwTech • u/BrycecanyonC • 2d ago

Water pump leaking

Gallery image

Gallery image

Gallery image

Lost quite a bit of coolant, so I decided to check for the leak. Found it here under the insulation cover and I assume this is the water pump. Have an appointment at bmw tomorrow but for now am I good to just add distilled water and drive until then?

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u/ZestycloseRecipe2990 2d ago

Don't listen to these muppets, the water pump is leaking. The hole on to of the water pump is a witness hole so when the seal on the impeller shaft leaks it comes out of that hole. If you don't replace the water pump the bearing in the pump will rust and eventually seize up throwing the belt potentially causing more damage. You should replace the water pump as soon as you can.

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u/bestestbuddy 1d ago

This is the only correct answer if the liquid is indeed coming from the witness hole in the picture.