heat off the brakes affecting handbrake shoes???? (just a thought as know nothing about the E87) cause if your driving sensibly and using brake lightly not alot of heat is generated, where as if driving it with a bit more speed, more heat is generated on braking (metal expands when heated and shrinks back to normal when cooled) this could cause a bit of friction when applying handbrake when hot but feel normal when cool just a thought???? could be totaly wrong so wait to see what the others say .sam.