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About McTyke

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    New Club Member
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  • Lexus Model
    LS460 SE L Caspian Sky
  • Year of Lexus
  • UK/Ireland Location
  1. Up-date - its better but still feel a wee bit of vibration. Can get pistons and seals kit for around £40 so will just go ahead and do other side. If that doesn't cure it I'll just scrap it LOL!
  2. Hi sorry Pete - here is update. So ordered a cheap version of Techstream from E-bay seller in Bulgaria (£27 for disc and cable) My local garage didn't have software. Once programme loaded on laptop it can connect to car ECU's. This allows you to disable EBC and so bleed front front brakes in usual way. Removed old caliper and go to mount refurbished caliper to find mounting holes don't line up (about 5mm out) Everything else on the caliper is identical. However, there is a 2 digit code stamped in to caliper (mine was N18) and the one from USA was K7. Clearly this made a difference. Damn! Plan B. Removed pistons and seals from re-con unit and fitted them in to my old caliper. Old pistons are plastic (Phenolic) - replacement are metal. Apparently Phenolic pistons are used as they don't transfer as much heat from pad to brake fluid. However, internet search has reports of these plastic pistons absorbing water from old brake fluid which causes them to become oval shaped and so stick. So maybe this was cause of my problem as the piston bore was smooth despite split seal and the plastic can't corrode. Soo - all back together, bleed brakes (even with ignition off there was sound of a motor/pump from engine bay when brake pedal pressed) The Techstream software explained that once ignition switched back on, the EBC was enabled. Went for test drive, no warning lights and brakes feeling much better. Am planning to source seals and pistons for when passenger side starts playing up. So - bleeding fronts is easy with the Techstream. Rears are a different matter though. Any questions, I'll try and help. cheers
  3. Up-date: Piston still sticking and causing vibration so ordered refurbished caliper from company in USA at very reasonable price. Now just hope as its only front to bleed my local garage can do it and clear any error codes with their diagnostic equipment.
  4. All went pretty easy. Only thing noticed rubber seal round one of pistons was split. The piston went back in OK but I am guessing the piston is corroded and so not getting equal force on the disc as I am starting to feel vibration again. This may have been cause of vibration all along as old discs did not look too old. Easy enough to remove caliper and get it rebuilt but have read that bleeding this system is specialist job. Any thoughts?
  5. Thanks folks. Will be fitting over Xmas so let you know.
  6. Hi all First post here - new to Lexus - all good so far. Need to replace discs and pads - recommended by my local independent to cure vibration. I've done this quite a few times over years on various cars but anything I need to watch out for/tips? All help gratefully received Jeff