After installing a new coolant regulator and burping a system sudden high temperature occures. Following picture show 95 degree at 92 degree of oil temperature but coolant temperature can reach even 120 degree

Sudden rising occure mostly only ones when engine has resently been warmed-up. After the first pick temperature become steady for the rest of the driving. I add even a youtube link from one of my rides: https://youtu.be/vtE0mGhGznE

  • The temperature increase is likely to be the thermostat opening and letting hot coolant through - and as the coolant system is pressurised the temperature will be above 100 deg c... – Solar Mike Feb 3 '18 at 22:11
  • Welcome to Motor Vehicle Maintenance & Repair! Can you please tell us what the year/make/model/engine of the vehicle in question is (if it's evident in the image or video, I can't see it here at work)? Knowing this info will help us to know if this is a common issue on the vehicle or if there might be some other known issue involved. – Pᴀᴜʟsᴛᴇʀ2 Feb 3 '18 at 22:14
  • @Pᴀᴜʟsᴛᴇʀ2 2014/octavia/2.0 tdi – Jack Strong Feb 4 '18 at 8:46
  • Get only Fault code 100103 and lukewarm coolant in expansion tank. – Jack Strong Feb 4 '18 at 15:44

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