This is the required line when changing from an LF-20 to an LF-30 power steering pump.
BMW Part Number: 32416764725
NOTE: BMW changed back and forth between the LF-20 and LF-30 model pumps several times across the non-M E46 range. Please verify you have the appropriate LF-30 pump before ordering. The easiest way to distinguish the two is that the LF-20 has a cast aluminum mounting bracket, while the LF-30’s is stamped steel.