I presume you mean for the turbo.
If you look through the cut out in the drivers side inner wing you will see it. Small black thing with 3 small (6-8mm) pipes going to it
I'm going down to a friend of mine in Devon next week, i'm pretty sure he still has one. He did last summer.
I will post back next weekend when i'm back
fuel burning heater - auxiliary coolant heater
Thers a temp sensor in the front grill area. When the ambient temp drops below 5 degrees'ish it turns on and heats the cooling system up quicker