Tesla service pointed out I should get the brake pads replaced ($1100). I figured I should check them myself... Left-rear wheel outer pad = 3.5mm Right-rear wheel outer pad = 3.5mm Left-front wheel outer pad = 2.5mm Right-front wheel outer pad = 6.5mm So yes, time for replacement, but the right-front wear has me worried. Tesla didn't say anything about a problem, just that it was time for new pads. No driver-visible symptom, not pulling to one side when braking. What should I be checking?