There's a hill you have to go up to get to toowoomba that's quite steep, and it takes a few mins to get up. Now without switching over, the temp gets up to 3/4 by the time I get to the top. By switching over, it almost hits 1/4 at the top. Now I know you're about to say that it could be a faulty temp sensor or thermostat, but given that the S5 solenoid in the Auto will detiorate quicker, and that the Ford air con compressors (turbines on the inside) aren't built to take higher added pressure due to the higher temp, I'm not willing to take that risk.
I've pulled apart 6 ford aircon compressors and the turbines have broken in exactly the same spot on the upper turbine.
The Turbine from the Holden one ( I can't think of the model) at the centre is a thicker wall, but you have to get the same upper and lower turbine thingys or the clutch won't spin freely once you've put it back together.
As for internal kits for compressors, there's no such thing resulting in extra cash you would have to fork out for a new one. You can buy new clutches and bearings but cost a fortune compared to the $6 (worth of spares from the local aircon guy), $60 regass and couple hours work, working out how piece it back together. But make sure that when you put it back together, that the O-ring is seated properly and you add some Sikaflex to make sure.
Learn from other people's mistakes. You won't live long enough to make them all.
If there's commotion coming from the passenger seat, and nothing but earth going round and round outside the windows,.......then everything is not as it seems!
The only time you have too much fuel, is when you're on fire!