I know about the pcd differences but the hub/spigot size was my question?

I have some mercedes wheels too hence the question...
there are 2 types of 5x112
Audi = 5x112 with 57.1mm centrebore (and 14x1.5 bolt holes)
and
Merc = 5x112 with *66.6mm* centrebore (and 12x1.5 bolt holes)
*please double check this, I am quite sure, but not 100%
so you are better off looking for the right adapters mate, you could buy the Audi ones, but you will need a 57.1>66.6 spigot rings, and the right bolts to fit to the adapter
I am sure it will be "safe", but is it as safe as the same car without the aftermarket adapters to fit wheels of incorrect PCD, shorter wheel bolts due to inability to screw them all the way in to the hub because of the adapters, hugely incorrect wheel offset/use of huge spacers and tyres that are too small for the rims, all sat on slammed suspension? My vote is a definite no, but this is not the place to discuss this.
Sorry Derek for taking it off topic. Out of interest, is this going to remain a daily driver, and will you be going down the remap, intake, intercooler, uprated FPR etc route?
The bolt going through the hub is dependant on the adapter size, when I ran 20mm adapters on my D90's, and I used normal sized bolts all the way through, so I will disagree with you there.
But I do agree with you on safety, I try and limit use of adapters, as I had a bad experience, due to the last owner threading the hole, but they were crap adapters, and I will be running adapters on my new wheels, but I have splashed out more, for studded adapters, and they have a lifetime warranty (from USA).
If you look, alot of people do certain mods to try and compromise their "big drops" by having stuff like engine spacers, this will not only stop you killing your sump, but will give back better wishbone angles.
Tbh that is your opinion, and you are entitled to it, like I don't see the point people putting all these power mods, straining their engine etc, but I don't voice my opinion on it

Everyone has their own taste, its what seperates us as humans
Sorry to go off topic Derek
