HELPING THE OTHERS REALIZE THE ADVANTAGES OF MERCEDES EIS REPAIR

I've a 2010 c300 4matic And that i went to my moms property another working day Once i went to lock the car Using the key it wouldn’t work whatsoever! When I went to go away the vehicle wouldn’t start, none of the buttons on The real key will work no more and After i switch to key to fireside the car up nothing tra