Quote:
Originally Posted by Graham B
I have now had an answer from the dealer regarding the wear. They tell me the brake pads when new are 12mm thick. After 2635 miles, mine measured 11mm at the front and 10mm at the rear. These were calculated on the computer as being 17% and 25.5% worn and printed on the Visual Health Check Sheet. They are clearly wrong.
I still think 2mm wear at the rear, after 2635 miles in 2 months from new, seems high, but I wonder if they were correctly measured.
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What I'd now do is simply see how the wear develops over time. You may find it doesn't wear at the same rate as is initially indicated. I'm not too sure the garage are correct on the pad thickness. Not checked the X3 figures, but typically we have thicker pads on the front than rear, across most models. So in reality you may have different ratios of rear wear than indicated.
My own car indicated wear was rapid on the rear brakes, but had to be recalibrated/reset on the CBS, as clearly there was much more pad left than the CBS was predicting. CBS had got down to 7,000 miles for the rear pads, but assessing pad thickness (9mm) vs. mileage driven (25,000), garage reset to 36,000 miles.
It is not uncommon for the rear brakes to wear faster than the front, DSC and evidence of at least an initial rear bias, contributes to this wear pattern. My own car wears this way, light braking makes it worse, as most of the braking on my F11 is on the rear at light loads. Heavier braking changes the bias to the front.
HighlandPete