This is a very intermittant problem. Occasionally, when just finally coming to a full stop, the brake pedal will go a couple of inches further down and I hear (and feel) a crunching sound. I always am completely stopped when it happens so there seems to be no danger, but it is unusual. Anybody with similar situations or any advice?

__________________
'76 240D-Sold
'78 240D-Sold
'85 300 SD, 165K-Sold
'88 300 TE, 165K-Sold
'64 Porsche 356C Cabriolet- under restoration
'86 560SL 124K Miles-Sold
'94 320E Wagon, 74K Miles-128K Miles JUNKED
'06 E350 Wagon, 84K Miles
07 SL550, 14K Miles