Thanks for all your help just got local retrimmers and they are going to charge £70 to repair.
Take the seat cover off and replace that panel, it was sold to me as half leather is actually vinyl, im such a sucker.
My car has done 70,000, do you know how much I should be selling this car for, ive got in the trader at £13,000 which I thought was reasonable but everyone who rings says its a bit steep are they just trying it on.
Its ML270CDI facelift 02 51 plate od black, interior good cond., a few scrathes on the bodywork but only noticable in direct sunlight, full MB history.
Any ideas would be appreciated.