How to repair brooken bleed screw in radiator BMW E36


Did you broke the screw when loosening / tightening it?

See how to easily remove the residue of screw on the example of the bleed screw in radiator of BMW E36.

Below residue of bleed screw in radiator BMW E36. Tightened the 1/4 turn too much… and the plastic screw was too weak to hang on it… ­čśë

urwana ┼Ťruba odpowietrznika BMW e36

Below you can see the small set, so that we can handle almost every brooken screw:

  • set of drill extractors / unscrewers with universal grip (about 2 – 3 ÔéČ)
  • large star screwdriver
  • screw or (in the case of a brooken metal screw) battery screwdriver / drill with a drill bit smaller than the screw

narz─Ödzia do wykr─Öcenia urwanej ┼Ťruby

1. To unscrew the brooken screw at first drill it by electric drill, preferably with twice smaller diameter than the brooken screw. In this case task was easier due to the fact that the screw was made of plastic. Here you can use a heated flat screwdriver, than sink it in the plastic screw, wait until freeze and then unscrew the rest of screw. I didn’t have nothing near by car to heat up the screwdriver, so I used plain screw:

wykr─Öcanie urwanego odpowietrznika BMW

2. Po wkr─Öceniu i wykr─Öceniu wkr─Öta, kt├│ry zast─ůpi┼é wiert┼éo, wkr─Öcamy wykr─Ötak. Robimy to jednak odwrotnie ni┼╝ zazwyczaj, poniewa┼╝ wykr─Ötak ma odwr├│cony gwint, czyli kr─Öcimy w lewo, tak jak by┼Ťmy wykr─Öcali, a wykr─Ötak zaczyna si─Ö wkr─Öca─ç. Kiedy za┼éapie ju┼╝ wystarczaj─ůco mocno zacznie si─Ö wykr─Öca─ç razem z pozosta┼éo┼Ťci─ů ┼Ťruby: After screwing and unscrewing a screw, which replaces in this case the drill, screw in slowly the unscrewer. We do, however, unlike usual as unscrewer has reversed /opposite thread, that we’re turning to the left, just as we would to twist and the screw should start to unscrew. When it starts to catch enough hard, then the residue of bleed screew starts to unscrew together with unscrewer:

wykr─Öcanie urwanej ┼Ťruby odpowietrznika BMW e36wykr─Öcanie urwanej ┼Ťruby odpowietrznika BMW e36

3. It remains only enjoyable part – screwing in your new bleed screw ­čÖé

wykr─Öcona pozosta┼éo┼Ť─ç urwanej ┼Ťruby odpowietrznika

The whole operation takes up to half an hour.
Good luck ­čÖé