DAIGNOSIS: it will run indefinitely at an idle but once under load and driving I can get sometimes 5 to 15 minutes then she hits the red.

I have bled air from the bleeder port some 25 times, ran it with a new thermostat, without a thermostat and with one gutted. I have back filled both hoses to the radiator

I started by replacing the thermostat, then a new bmw radiator, then tried a water pump. and lastly I replaced the head gasket and the HEAD! It still does the same danged thing.

I am desperate to get this can on the road again. Can anyone offer any advice???

• Overheating Step by step got me to the replace the head and still overh - cmdbmw 2005-12-21 09:54:52 (432 views)
  • I checked all these things... then installed a new head. - cmdbmw 2005-12-22 21:53:07 (388 views)
    • Thanks for the report. Some POs get some pretty harsh - kff 2005-12-23 10:10:33 (377 views)
      • Re: Thanks for the report. Some POs get some pretty harsh - bmwtech 2006-01-03 16:57:24 (339 views)
  • How's the fan clutch? Maybe a clogged port or hose? (nt) - Gcracker 2005-12-22 20:37:25 (410 views)
  • How is the radiator cap? (nt) - kff 2005-12-21 21:15:32 (360 views)
  • It is an 87 528e (nt) - cmdbmw 2005-12-21 09:56:31 (351 views)