[Karadjas]

I'm concerned with optimising a/c use in my Seat TDi...

In the Audi, I can access the fuel consumption attributable to the climate control from the driver info system, and it never exceeds 1L/hr.

I have no idea how the Seat's a/c works though. It's a 1997, so definitely not as efficient. Does anyone know if moving the dial from 4(max) to 2 actually saves anything? Or does the excess air/pressure just vent?

It's a van, and I just got a net to put between the cargo area and the seats and I thought about maybe attaching some clear sheet on it to separate the two areas. I don't think the spare tyre and random stuff I haul need the a/c.