Looks like one of the rear brakes had been binding on and over heated, I hadn't really used the car for about a week (apart from getting a loaf of bread from the garage last night) and I think being sat still after an off roading trek in the snow the week before in Hampshire, mud and a ford may well had something to do with it.
It's not being helped that the ML is in dry dock due to a steering sensor issue and the Fronty was press ganged into full fledged work mode at the last minute, thrashed within an inch of it's life this morning.
Any who the Merc is back tomorrow so 1 more 8 mile trip pumping the brakes to death and I can get it sorted, nearly had to use a Suzuki alto as a braking device this evening it all adds to the rich fabric of life

I would prefer a full bottle in front of me than a full frontal lobotomy.
Seek not excess, God hates he who roams !