On my W123, lately the rear brakes have been locking on good amount of pressure, I'd say the amount of pressure is slightly before slaming them on. The did it with the 195/65/r15s more than with the 235/45/17s now. The rear hoses have a crack on them where it attaches to the caliper. I got new rear hoses, and I ordered new front ones so I could do it all at the same time. Do you think this is causing the problem? Maybe do the calipers need to be rebuilt?

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Current Stable:
1994 S500 v140, 210k miles, white with grey.

Former Mercedes in the Stable:
1983 300CD Turbo diesel 515k mi sold (rumor has it, that it has 750k miles on it now)
1984 300CD Turbo Diesel 150 k mi sold
1982 300D Turbo Diesel 225 sold
1987 300D Turbo Diesel 255k mi sold
1988 300 CE AMG Hammer 15k mi sold
1986 "300E" Amg Hammer 88k mi sold (it was really a 200, not even an E (124.020)
1992 500E 156k mi sold
etc.