It is hard to put a number of what you "should" be getting as there are too many variables including, pad quality and driving habits.
However, 4mm in 10,000 miles points more towards the quality of the pad as you indicate more than an issue.
Especially if you put ceramic pads on as they are soft and wear quickly. However, they are quiet and have very little brake dust.
If it were me, I would keep an eye on it and when they are low, replace them with a different set and retest to see if they wear just as quickly. I would go with a semi metallic and see what happens.
Tuesday, May 11th, 2021 AT 2:26 PM