Ok, so I called the parts dept in my local dealer to enquire about this part. I can get it special ordered in from Germany for about £45 + VAT, so it is available. The puzzling thing is that this is only fitted to the 2.4 and 3.2 petrol models! I can understand that EGT's are higher on petrol generally, but the temps reached on a diesel during a regen must be considerable higher and yet no heat shield is fitted. If, like Victor said, the regens are limited to 500 mile intervals, then maybe that would be ok, but many have reported much shorter intervals. Perhaps thermal degradation of the oil is to blame? Have there been any reports of the petrol models destroying their transfer boxes?
2013 Antara 2.2CDTI 163PS SE Nav S/S Manual AWD in Smoke Grey