W211 e320cdi data log recording…..

[Cj1874]

Hi all, im trying to get my ECU data logged/ recordered and so far ive just had my time wasted ! Saw a post recently regarding an innovate logger/ recorder thats £60 inc p&p bit ive also been advised that the e320cdi is very conplicated to log with or w/o a dyno ??? Any help on this PLEASE,

thanks