If anyone is interested - I replaced both crankcase vent hoses as they were totally destroyed and installed a new cam shaft position sensor and all of the fault codes have now gone - whoop whoop

114/8 - P0345 - cam shaft position sensor 'A' circuit bank 2
28/255 - P1158 - fuel trim adaptation additive low bank 1
29/255 - P1158 - fuel trim adaptation additive low bank 2
26/66 - P0171 - system too rich bank 1
40/1 - P0420 - catylist system efficiency below threshold bank 1
160/36 - ????? - O2 sensor bank 2 sensor 2

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E61 525i 2004 M54 Auto
E46 320i 2002 M54 Auto
E46 330i 2003 M54 Sedan Manual