Very easy. Take pins from the back off that hold caliper to rotor. The fronts use a star shaped socket and the rears used a standard socket. Take off pads. Unplug front senors from pad.Open calipers fully, put in new pads, etc. The only thing I found was that on the rear pads there is a very slight difference in rights side and left side. I didn t notice at first and could not get caliper back on with pads in wrong place. Before you move the truck while in park pump the brakes until calipers close. E mail me if I can answer any questions for you.
98 E430(sport), 99 ML 320 (sold) , 05 C 230(sport) Mark