Dslwnfrd,

The referenced '80 300SD is used mostly for long trips across the country. I also downshift going down hills instead of dragging the brakes. I don't know the exact mileage on the pads because they were on the car when I bought it. I did replace the rear pads because shortly after I got the car because they went metal to metal. I think they were the original set. The car has 235K miles now.

Why not leave the sensors alarm? Isn't that what they are for? I believe in the slogan: "If it ain't broke or worn out, don't fix it" Worn pads work as good as new ones until they go metal to metal. I like to have about 1/2 millimeter of the pads left when I replace them.

P E H