I too own a 87 560SEL. If all you are going to have to do is replace the pads (inspect the disc to make sure), replacing the rear brakes is a very simple process. If it's just a pads problem, send me an email at jardrewer@aol.com and I'll send you a step by step walk through. If you only have to replace the pads, it should only take about 1/2 hour to change both sides. It takes longer to jack up the car and take off the wheel than it does to change the pads.