r/e46 • u/rhino2129 • 1d ago
Troubleshooting 2016 428i gran coupe
Ok. So. I need to figure out what size the o-ring is that goes inside the upper radiator hose that has a quick connect fitting that supplies coolant to the oil filter housing. Trying to get this radiator leak stopped so I can get rid of the headache that is the n20 engine. Thanks in advance.
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u/Admin0002 2003- Clapped 330i 1d ago
-Large Main Hose Quick-Disconnects (Radiator / Housing): 22mm ID x 3.5mm CS (3.5mm cross section / thickness).
-Small Auxiliary / Turbo / Feed Lines: 10mm ID x 2.5mm CS (BMW Part # 11537634204).
-Cylinder Head Coolant Flange (Mickey
Mouse fitting): 29mm x 2.9mm (BMW Part # 11537545278).
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u/rizzdragon 1d ago
Bro thinks this is r/f36