dri-diddly-iver:
Had mine fitted from a MAN recall. Apparently there has been a problem with certain years/models regarding the mid lift brakes overheating. These bright yellow jobbies change to an obvious colour (don’t know which) when the problem occurs, then the callipers are replaced free of chargeTold to me by MAN mechanic when fitting mine.
You think they would find a cure for the problem rather than fit plastic wheel nut caps all the time.