No idea, looks like its been missing for some time given the dirt.

Ah, 6 is for the low beam? I hadnt noticed the wee dotted line initially that points it down to the low beam region.

Correct, it's about 50% wider and if you have any type of xenons that's where the ballast is fitted, on the back of it.

Get that sorted please +++
Photo if insects??

There is a third one towards the back that you cant really make out.

You are quiet lucky, it's easy
See attached picture

Take both bulbs out, (left as you look at the picture) Main beam and (right) Cornering H8.
Both accessible from were the cap is missing.

Buy a meter of O.D. 8mm x I.D. 6mm
http://www.ebay.co.uk/itm/METRIC-Fle...item4ac9984675

Tape it well to the end of the hoover's hose and you'll be done in under a minute.
Garden hose may not fit plus you wont be able to manoeuvre as good as with the thin and more flexible air line ;)

Had a look at this today. Sadly removing the cornering bulb wasn't as easy as I expected so I gave up!

?????? Really?
As far as I remember all you need to do is turn the bulb anti clockwise and pull it out...

They werent the easiest things to see to be honest, but it looked more complicated than that!

Well, finally got round to tackling this yesterday. Got the bulb out eventually and the hole was the perfect size to allow some hose pipe to be threaded in. I taped up the Hoover and after a bit of wiggling got them all out. Over the moon!

Sadly I also found the original cap for the back of the headlight sitting further down in the engine bay, so could've saved myself £11.50!

Result +++
Did you actually used garden hose and the airline from the link I posted??

Just cut a bit off our hose and it was the perfect diameter.