I have a 2005 300 limited with a 3.5L . I have a engine code PO 153. its Bank 2 sensor 1 oxygen sensor. I have had 2 different people tell me 2 diff sides of motor to replace. Last service center said it was the passenger side front and had to take apart intake manifold to get at. Can someone clarify the location please? thanks

 

Bank two is usually the passenger side of vehicle.
Bank one is on the side of the engine where cylinder number one is located, which is normally the drivers side.