UKPassats

I've just bought a spare set of alloys to fit my winter tyres to in order to be able to swap them over myself at the beginning and end of the winter. The new wheels don't have the TPMS valves, so when I fit them to the car, will I get an error light on the dash, or a "check tyre pressure" message? Or will the tyre pressure screen in the DIS just show zero bar?

Does anyone have any experience of this?