Why are my Mondeo's rusty brake calipers not covered by the warranty?

I purchased a nearly-new 2012 Ford Mondeo 1.6 Ecoboost in June 2012 with 3500miles on the clock. The car is parked on my driveway at all times when not in use. Today’s mileage is 10,000. I recently noticed that the brake callipers and hubs to all four wheels are going rusty and have got progressively worse over the past three months, I referred the matter to my Ford dealer who, in turn, referred me to Ford, whose answer was that these items are not covered by the warranty. Your opinion would be appreciated. The cost to replace these items is £1523 plus VAT, a cost I feel I should not have to stand on a vehicle only 19 months old.

Asked on 28 December 2013 by BH, Dewsbury

Answered by Honest John
It's only surface corrosion and entirely normal. The components are bare metal, so they rust. The heat generated by the brakes stops that rust becoming a problem. You could clean them up and paint with Sperex VHT (Very High Temperature) paint for the sake of appearance, but it is not necessary for the function of the car.
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