I have not driven my e420 in at least 3 months or so. Anyway, this week I decided to drive it. I stop at a friends house and applied the parking brakes. About a hour or so later I release the parking brakes to leave and they would not release. The brakes were stuck. I got up under the car and checked the parking brake cable to see if it was broken but everything was okay. I unscrewed the adjustment cable to allow the cable to have slack and still no change. The parking brakes would not release. I stuck a screw driver into the lug nut hole and tried to adjust the lever that push the brake shoes to the rotor and still the same results, no change.

After dealing with all of that I decided to remove the brake disc rotor, but I was unsuccessful. Can anybody tell me what is up with the parking brakes and if I am missing something on getting these rear rotors off the car.

If the parking brakes are applied the brake rotors will not come off.

Have you tried going back & forth into D then R? like a rocking movement?

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MB DOC, thanks for your post. After researching the problem I realize that the dust cover was rubbing against the inside of my oem rims. While at my buddy house I took my 18" Chrome wheels off the car and put my factory rims back on the car. It was not the parking brakes as I suspected, the problem was the dust cover that got bent somehow and begin to rub a ring in the inside of my factory wheel. It was late in the evening and I did not notice the ring around the wheel until the next day.