Stacking posts because I have been at it again. Tried to do rear pads and rotors this morning but my E430 has 1 pin pads. I bought 2 pin. That's a fail. I'm looking into 2 pin caliper swap. I noticed at the junkyard that 1 pin pads wear unevenly in the direction of rotation while 2 pin pads wear evenly. I'm thinking 2 pin has better control of the pad. Looking for an easy victory, I completed front seat swap. Cleaned out decades of muck and found a handful of change. Fore/aft adjustment was jammed but luckily, all four bolts were accessible. I was prepared to cut the seat out. My cleaning efforts released old food smell which is slowly dissipating. I might take the seats out and do a proper cleaning if the smell does not go away.