Daughter driving, smelled and saw smoke, right front tire area. Two days later, same problem, right side brake drag. Towed to dealer. Told me not covered under warranty because some one put motor oil in the brake fluid. Went there. Tech put finger in reservoir, motor is in it, system is contaminated. The cost is 1,300 or more to replace everything. It doesn't look contaminated to me. I got samples, top, bottom of reservoir, front right bleeder, left rear bleeder. Other than the top sample from reservoir which was taken using a dirty battery tester, all other samples look good. Took sample from another car in service area with batter tester which had black specks coming out probably because brake fluid ate at rubber. After taking 3 or 4 tube full and throwing them away the black specks went away and got the sample. This sample was taken by the operation manager. Samples of front/right, rear/left, bottom of M/C where done by tech as I held bottle. All done in front of the manager. Said it was the M/C that was causing the brake to hold pressure. I ask how can it be only on one side" if the pressure is at M/C why aren't both wheels dragging or locking up" I took sample to tech at another dealer (not a Toyota dealer) he said there is nothing wrong with brake fluid and took test for contamination with fast strip testing. All were good. He also said that M/C not problem. This is a non ABS system and works pretty simple. Called Toyota customer experience 3 times to talk to Toyota rep, dealer and Toyota refused access to rep. The dealer gave me this choice... we will do you a favor and replace the M/C at no cost, however if any other problems it will be considered contaminated and you will have to pay. We already know the front right was heated beyond a safe heat temperature which will cause problems. This puts me in a no win situation with the dealer and Toyota! if anyone else has this problem please report

- St. Cloud, FL, USA