After suffering from jerkiness for the past few months, this forum has been brilliant at pointing me towards the Air Flow Meter (MAF?) as the source of the problem - unplugging it took my Golf back to it's original glory, albeit with crap fuel economy.
My question now is, can I clean it out as some poeple have suggested, or do I simply need to get a new one?
I've attached 2 pictures of the offending bit...

A couple of questions...
1) Can I get into the MAF to clean it out? The star shaped bolts suggest I can't...
2) If I replaced it, do I replace the whole thing, ie the small black box and the large silver tube underneath?
3) Any suggestions on where to get one from and rough prices?
This forum has already been more use to me than any number of mechanics, anyone from here who's in the Stoke area, I owe you many many pints!!!
Gav