Remove air intake pipe 3.
Bmw washer fluid reservoir leaking.
This would be due to a crack in your windshield washer fluid reservoir on your 2011 bmw 328 xdrive.
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Wrap it around with piece of rubber.
Remove air filter box 2.
Well the hole that fluid comes out as far as i can tell is for air to circulate into the pumping valve.
If its working properly air would be sucked in but then immediately seal itself to prevent a fluid leak in the reverse after time this valve just gets wore out and begins to fail.
If you have constant low washer fluid warning regardless of fluid level it s most likely the level sensor inside the tank.
Once the basin is loose pull it up carefully and tilt it backwards a bit so that the remaining washer fluid will not spill out of the hole when you remove the damaged pump see second image.
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Mine cracked and fell off which allows the fluid to drain out quickly.
You can unplug the pump unit and go to a hardware store find a small seal or gasket in the plumbing dept that fits snuggly around that end of the pump.
It is commonly suspected and misdia.
I would recommend searching around for a windshield washer fluid reservoir that is brand new.
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Check if it leaks 5.
In this video i ll show you my quick 5 bmw fluid leak diy fix.
It is likely a very small crack if it took a whole day to leak out.
Most of the time this happens the fluid leaks out within a few minutes.
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Apply some sealant and press it in to the hole.
A used one will likely have the same issue later on down the road.
These cars get hot under the hood and the constant change of temperature makes all plastic components very brittle.
