[Northern Chris]

Took the 914 for a spirited spin into town the other day. Went into a store came back 10 minutes later and had trouble getting the car to move, the brakes were stuck partially on. Petal was really stiff. Got about half a block and then had to park and call a tow truck. After waiting about 45 min for the tow found the brakes had released and drove the car home.

I'm brave so next day drove cautiously with no problems, the following day while driving the brakes slowly came on and had to park after 3 miles, this time all four brakes were tight and petal was solid - brakes weren't to hot as still could touch with fingers. Waited an hour then could drive again, half a mile later brakes tightened up again (much hotter this time could smell), was tired of waiting so bled down one front brake cylinder and was able to move the car again and get it home. I had a new master cylinder installed this summer could that be the culprit?

Any suggestions where to start looking?