BMW N63B44 Oil Leak ,Turbocharger Return Oil Cover Gasket - DIY

BMW N63B44 Engine
BMW models : 750, 650, 550, X5, X6
DIY Job completed : Oil return cover replacement.
One of the known issue in the N63 V8 engines. Temperature under the turbos get too high and the oil return cover gasket fails under the heat shields. In some cases the heat also causes oil to "boil" inside the return lines clogging them. Often misdiagnosed to be leaking rear main seal or upper oil pan gasket. The problem is well known and appears on all bmw`s with N63B44 ENGINE - (F10)550, (F12) 650, (F1) 750, E70 X5 50i, X6 50I
⚠️Symptoms: Oil leaking under the car between engine and transmission. There is a drain hole above the rear main seal, letting leaked oil drip down from the V-valley.
📃Spare Parts list :
11427599233 Oil feed pipe
11427577010 Oil Return line bank1
11427577011 Oil Return line bank2
11657577016 OIL RETURN COVER (with gasket)
11428624158 Gasket Oil Return line (2 needed)
07119963072 Gasket Oil feed line (4 needed)
07119963201 Gasket ring Turbo coolant line (8 needed)
11627614095 Gasket Exhaust Maniford (2 needed)
11627576991 Gasket between manifold and Turbo (2 needed)
18307553601 Gasket between Turbo and Catalysator (2 needed)
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