Submitted by h2ev on Fri, 2020-02-14 04:51
My rear rotors are very rusty, even a bit on the driver's side front. I stood on the brakes couple of times at high speed in an attempt to get rid of the surface rust, but it only took off a bit. There are still rings of rust around the rear rotors. I think my rear brake calipers are a bit seized up, think it's been an issue for a while now, as even back in the summer it takes a long time to rid the surface rust from after a car wash. Not surprising since the car barely ever uses the brakes, and on top of that salty winter roads here. I've seen this issue on hybrid cars in which the rear calipers are completely seized up, it was so bad that I needed to use an impact wrench to remove one of the sliding pins from the caliper, with the inner brake pad looking like a wedge. From then on I thought to myself I should lube them up once a year.
Time to get dirty on the Tesla. Does anyone know the torque specs for the rear caliper bracket and sliding pins? I could not find it after much search. I have a dual motor non-P with the regular brakes, so the front calipers are fixed and I just tap out the pins to remove the pads vs the rear which is a floating caliper. On another car I worked on, I broke the head off the sliding pin from over torquing lol, from not having the proper torque spec. Took me a long time to drill the rest of that pin out of there. I don't want to do this without knowing the proper torque specs now.