Thank you for the quick feedback.

Yes it is nat aspirated. know my way round the engine bay pretty much [except for the IAC issue].

Ah- so, the ETB takes over the function , OK. Prior to this the S60 had the usual limp home issue and we sorted by getting an exchange Xemodex from Canada, pre ...

Hi everybody, cant find the IAC valve on a naturally aspirated S60 2001. Feel like a jackass.
I have looked at the images on the net, etc and looked for pipework to a gadget from before and after the throttle body. Closest I get is a gadget labelled PIERBURG >PA6 GF30 <8. According to googling that ...