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Message: <blockquote data-quote="astroboy" data-source="post: 358304" data-attributes="member: 4527">Alo! That indicator on my OBC izzit pad or brake disc rotor? I am too behind time la. I thought pad change indicator is the sensor embedded into the pad while the one on OBC is our distance to rotor change estimates?All brake disc rotors have a minimal operating thickness, some are written on the disc while some are in the service guide. Again, BMW has taken this into its OBC calculation which monitors the acceleration and deceleration pattern of the car and count down the mileage accordingly to trigger the rotor change indicator. If not mistaken they start from 45k/55k km for front/rear.For older generation BMW like the E36, the rules of thumb is replace rotor after 2 sets of pad or lining. Well, I stretch to 3 sets.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite7" alt=":p" title="Stick Out Tongue    :p" loading="lazy" data-shortname=":p" /> Unlike Japanese car, the continentals are treating the brake rotor wear as part of routine wear&tear and it is actually a functions of pad wear to improve stopping force, and safer brake.80k km more to wear out the front rotor is definitely not right! and having a rear brake that's running a shorter life is also not right unless you handbrake corner a lot.. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite9" alt=":eek:" title="Eek!    :eek:" loading="lazy" data-shortname=":eek:" />Anyway, I have just collected my sweetie from IA.. :love:</blockquote>

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