[ssanjeev]

I have had my MC Mondeo for just over three years, and have replaced the wiper inserts for all arms about 3 times, once every year just before heading into winter. 2 x 19inch and 1 x 26 inch. Works like a charm, and yes you can actually buy the Motorcraft refills, they work well, with no streaking or marks. Key is to ensure that that the blades are seated correctly. Lubricating the blades with soap helps slide them in relatively easily, and also prevents binding.

If the arm shows any signs of damage such as play at the hinge or any other mechanical aberration, then of course you would need to replace the entire blade or even the arm if need be.