540i leak from back of block

Bought for cheap since owner said valley pan was leaking.
Replaced valley pan, intake mani gaskets, front rear cover, water pipes, everything including knock sensors.... still leaked. Pulled it apart to confirm it wasn't the valley pan and nope... all was dry.
So put not back together and recorded this...
Has to be the coolant manifold on the back of the block inside the transmission housing ( not the rear water accumulator) so time to drop the transmission I guess...... FFFFFUUUUUUUuuuuu

Видео 540i leak from back of block канала Jose Jr