They said the td4 dose not need glow plugs because its direct injection.
They are fitted for extreme weather conditions that we dont get in the uk.
Unless you snap the extractor which many people do and that opens up a whole new world of pain and expense ( due to how hard they are making them all but impossible to drill out).get it pulled out ,get a hole drilled in and an extractor which has a reverse thread then get some heat onto it then as it is red hot spray with wd at this point be careful of any flames, then wind the extractor in then jobs a good un