The second set of brake pads on the right front of my 240 with 94,000 miles are completely worn but those on the left still have about 70% of friction material still remaining. There doesn't appear to be any problems with the pins which would prevent the pads from sliding. Should I just figure there is problably a problem with the caliper and replace both or is it concevable that debris in the fluid may be causing this to happen?
When I installed the pads, I simply used a screw driver prying against the friction side of the old pads to reset the pistons. Could this have damaged the caliper?
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