brakes locked ?

What is your question?

2013 Mercedes C300 4matic: Tried to rotate the tires and now the there is a dragging sound and a burning smell when I drive. Figured front brakes are locked up. Emergency brake not indicated on the dash as being activated, but wheels and rotors only rotate back and forth a little, like something else is locked. Next step ? Thanks.

What makes this problem better or worse?

driving

How long has your 2013 Mercedes-Benz C300 had this problem?

week