Piano Black door trims on S-line

Does anyone know if the Piano Black trims on the exterior of the doors are replaceable?
I have noticed today on mine that on one side (which has been in the direct sun most of the day, if that should make any difference?!) has cracked all along the surface, which is similar to a broken mirror-look.:yikes:
Needless to say, I'm not keen to leave it that way so can anyone shed any light on my options please?

Thanks.

You can buy the trims from the dealer or you could swap to a different trim.

I think the fitting will probaby cost as much as the trim!:o