My name is Jon and I am an appliance expert here with JustAnswer and I can help you today.
If the glass surface has worn away to the point where the metal and inner layers of the glass are showing there is nothing that can be done but to replace the glass.
But with these schott ceran glass cook tops the glass is really very expensive. Should cost about $500 to replace.
But this will be cheaper then replacing the whole hob.
So my advice to you if selling the home is to just replace the cooktop glass surface. that is your cheapest option. otherwise, you will have to give the buyer a concession or money to replace the hob altogether.
and again, that will usually cost way more then a new cooktop.
please get back to me here with the full model number and I will see if I can get you part info. Otherwise, you will have to call Neff for replacement or go to your nearest applaince parts store like www.espares.com and see if they carry and stock parts for your mdoel machine.
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