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I almost never use the brakes, brake pads should last forever. My 217K mile Prius has the original pads and about 85% left.
I almost never use the brakes, brake pads should last forever. My 217K mile Prius has the original pads and about 85% left.
with being in New England on the salty winter roads.
Rotors warp on this car before pads ever wear.
You will not warp the rotors. You will get uneven pad deposits from bad braking habits and corrosion. If you haven't bothered to clear the brakes properly often enough, getting the rotors turned is a cheap option.
It's very very hard to physically "warp" the rotor. You can however eventually create hotspots that mess up the metallurgy on the rotor, which is harder (but not impossible) to recover from. The process is not in any manual. But I've had very good luck with it. It's more relevant for the Model S than most other cars. If the rotors are dirty, lets say surface rust after sitting in the rain, you should do some long and light braking to clear off the corrosion, without heating the rotors excessively until the rust is gone. Then you should have long and medium braking (short of ABS engagement) to evenly apply pad deposits and heat to the rotor, you should NOT come to a full stop during this process, the rotors should be allowed to cool evenly after braking. You are effectively rebedding the pads. You should never brake hard if the rotors are pulsing, because you're creating unven pad deposits and hotspots.Tell me more... mustn't have seen the clearing brake in the user manual. As a result I've never done it. (On any car I've owned).
What I have done is this..
When I noticed my brakes felt "pulsatingly grabby"... not what I'd call steering wheel inducing oscillations I associate more strongly with rotor warp... that "steering shake" feel is not dominant.
Well, what I have gone out and done is some hard long stopping cycles from high speed... enough to heat the rotors real well. Hoping to burn off any deposits or rusty patches on the discs. The discs don't look blotchy, they're uniformly shiny bright metal.
I haven't popped off the wheels yet and measured disc warp or visually inspected front and back sides of discs. I'll do that when I change over to summer tires. And I'll use brake cleaner and spray everything clean when I do that too.
Maybe that will help.