BMW installed both the M54 and N52 in the e60 and e61 chassis. N52 Kits will also include the little green o-ring for the sensor in the lower radiator hose (1743299 ) and BMW Part # 11517514942. 5 Series e39, e60.
BMW Cooling System O-Ring Kit E46 M3 S54 3.2 Radiator Coolant Hose Sensor Set
BMW Cooling System O-Ring Kit 328i 328xi E90 E91 E92 E93 N51 Set
BMW Cooling System Hose O-Ring Kit Set 335i iX Li F30 F31 F34 N55 2011-2018
BMW Cooling System O-Ring Kit Set 540i iX G30 LCI B58 2015-2023 Radiator Hose
BMW Cooling System O-Ring Kit Set 430i 430ix F32 F33 F36 B48 B46 2015-2019
BMW Cooling System O-Ring Kit X6 35iX E71 N54 N55 Radiator Coolant Hose 2007-
