Rotor and pads and bearings. Oh my!
Left rear brake disc (yes, rear disc) overheated last trip out to the point the brake fluid boiled and disc was smoking. Whether it was a sticking piston or internal kink in the final section of brak...
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Doubtful that the bearings got overheated as they are probably oil bath. As for the caliper and rotor? Replace everything. Rotor is probably warped, the pads are shot and the caliper is probably already got serious issues. Would not hurt to replace the hose too. Then your entire brake system needs to be flushed and refilled with clean proper grade fluid.
