Review on 🔧 Enhanced Coolant Expansion Tank Bleeder Screw Replacement for BMW E46 E92 E90 E36 E39 Mini Cooper 17111712788 by Michael Lara

Over time, this brass bleed screw will deform the bleed threads. The heat and vibration of the engine will take over and the result will be a leak. Replacing the upper radiator hose is the only solution. Ordered August 12, 2019 for my 2001 BMW 330Ci; replaced the upper radiator hose on October 24, 2021 due to a leaking drain plug. Obviously there's a reason the original bleeder screw is made of plastic that expands and contracts with the hose.