[r80rt]

I use a small C clamp, works great.

[singhg5]

If that's what it turns out to be, your wellcome to bring the caliper down, and we'll pop the pistons out with my compressor, if you don't have one, and replace the seals and pistons.

@GHG:
Thanks for your offer to use the compressor.  I am going to see what I can do and if I do not make a headway, I will give you a call. 

@Maturin:
Good insights on why and how pistons can get stuck in caliper and your experience with your Mercedes car.  Thanks for your input.

@Ducati and @r80rt:
Got a C-clamp and a flat metal plate so that I do not touch the piston edge directly.  Not riding daily due to cold / bad weather.  Thanks for your advice.

[Ducati Scotty]

Not riding daily due to cold / bad weather. 

Me either

[draggin]

has anyone resolved this? I get the same noise, and the wheel drags at the same time.

[barenekd]

You get the noise because the wheel is dragging. Push the pistons back into the calipers a bit. Get some brake cleaner and spray the groove around the pistons and clean the gap thoroughly. That should allow the piston to move and retract as desired. As mentioned clean and lightly grease the pins that the pad assemblies slide on
Bare

[Craig McClure]

DON'T TAKE FRONT DISC BRAKE PROBLEMS LIGHTLY. Unlike a Drum Brake, A Disc can totally lock up, & put you down-in possibly a face plant. I crashed & totaled my Kawasaki W650 last year, from a LOCKUP. Fortunately no face plant, but I tumbled over & under the bike quite a way. Only damaged my left rotator cuff(shoulder) Now healed. I will never again ignore a SLIGHTLY NOISEY OR GRABBY DISC.

[draggin]

I cleaned and lubed mine and they stopped dragging, but I did notice that the front brake disk has a slight wobble to it. I will take it to the dealer for that, but the noise and sticking are definitely gone once I disassembled and lubed the caliper! just a very slight oscillation since the rotor is out of true. 
Thanks Singh for posting the great front caliper video!