I see! I'd forgotten for a moment you had changed to a 4.6 from a 4.4.

I'm pretty much decided on this and ordering the thermostat now. I see they were pretty much at an all time price high recently but some places are discounting heavily and I think now would be a good time to buy.

Wish I'd known about this sooner, would have tried this instead of getting a standard MAP thermostat when I started getting thermostat codes last year.

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04 X5 3.0i auto
03 X5 4.6is