[St Evelyn]

I would say that it's not normal to smell the DPF regen - I've certainly never smelt it in almost 40K miles with my V90 D4.

I've got a very vague recollection of someone else reporting getting fumes in the cabin during the region cycle - this must have been 18-24 months ago I'd guess. Can't remember the detail but pretty sure it took a few return trips before they diagnosed the fault. Again, can't be sure but pretty sure there was an issue with a seal (on the bulkhead perhaps..?) that had to be fixed. Might be worth doing a few forum searches to see if you can find anything that helps.