If you plan to just change the pads, and the rotors are fine, then this job is cake. First, suction some fluid out of the Master Cylinder so when you compress the caliper pistons you don't overflow the reservoir. Jack the car, & remove a front wheel. Once the wheel's off, all you'll need to do is to un-do one of the bolts at the rear of the caliper that holds the caliper to the carrier (you'll need to hold the "pin" that the bolt goes into-it is the part that the small rubber bellows attaches to). Once one is undone, simply pivot the caliper away from the rotor-compress the piston into its bore with a large C clamp, then install the new pads (make sure you have clipped the wear sensor to one of the pads). Pivot the caliper back into place, re-install the bolt you removed (either replace with a new bolt or apply strong thread lock compound), and connect the wear sensor. Repeat for opposite side.

When you're done, pump the brakes in place (never exceed 75% of the range of motion of the pedal-do NOT push all the way to the floor) until the pedal is firm. Fire it up, and take it for a nice easy ride & bed the pads properly.

Good luck!

__________________
"If God had meant for us to walk, why did he give us feet that fit car pedals?" Sir Sterling Moss

Michael
2014 E63S Estate
2006 SLK55
1995 E500
1986 Porsche 944 turbo