Should Ford reimburse me for a third tyre valve failure on my Focus?

I have now had three failures of tyre valves on my Ford Focus due to corrosion between the rim and valve. The first two were reluctantly fixed under warranty but Ford are refusing to reimburse for the third as it was diagnosed and fixed by a non Ford garage. The car is under three years old
Are these TPMS valves? If so, quite a common problem. But you can't expect Ford to reimburse you for work done by a non Ford garage that Ford has no control over.
Answered by Honest John on

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