I'm currently wading through various odds 'n' sods that seem to be missing from my first ever Golf GTI and wondered if I can get some pointers. I think here I am missing the timing inspection plug? And here - I'm guessing should be some kind of 'proper' bung - not garden hose and a bolt? And finally, there is what appears to be a socket where there should be something more, errr, designed for the job? Any help in identifying these three missing or modified parts would be much appreciated.