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Originally Posted by Math
As I recall, there was still sufficient brake pad material left after the sensor had triggered the alarm, at least for a couple of 1000 kms normal driving. So I would never replace brake pads earlier, but ofcourse you should know better according to your own driving style.
All in all, I think the sensors are a good way to know when to replace brakepads.
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But you have 8 brake pads, and only two sensors. If a caliper gets slightly stuck, a pad could be down to the metal before the one with the sensor is triggered. I also noticed that a half worn pad will fade faster than a new one. I think the heat capacity is simply too low due to reduced mass and thickness. That is why I don't like to wear the pads 100 percent down.
Quote:
Originally Posted by Math
By the way, how often do you replace brake disks? Every second time you replace the pads? (Disks should always be replaced together with new pads!)
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I don't know yet for the F20, but on earlier cars I have had 2-3 sets of pads per disc.