I am on my original, only problem I encountered was the plug pins went green with oxidation and brought the code up. Had usually given itself away idling at 1100 sporadically. Since I made a waterproof boot for it out of a rear numberplate plug boot its never returned. It gets dripped on when you open the bonnet by the watertrapped in the bonnet badge honeycomb.
Night Blue VW Golf 7 GTD : Bianca 306 Rallye : Mini Cooper D (The Mrs')
HDi Owner for 200k/9 years
HDi Owner for 200k/9 years