E46 1999 2006 thanks for your replies guys.
Bmw e46 coolant drain plug location.
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I take a close look at the radiator drain plug system on my 1 series bmw.
Thus if you intend to keep your bmw long term annual coolant flushes are advised.
There is one blue plug under the radiator but even by opening that plug and also radiator s cap and bleeding screw all of the coolant would not drain completly.
Place an empty three gallon bucket under the right side of your engine near the suspension sway bar.
Working at right side of engine block near engine mount bracket remove the engine block drain plug.
Allow the coolant to drain into the bucket.
I think there should be another plug or another trick b please help me if you have any idea or experince.
Remove a couple drain plugs to let the old coolant drain out put the plugs back in and refill the coolant.
Does anyone know how to drain all coolant from bmw e46 318i m43.
In fact that is the case on pre 96 vehicles.
See links to purchase parts and tools below the bmw blogs are wrong.
Normally a coolant flush is a straightforward process.