valve cap thingy

[2footpegs]

hi, this is a bit odd, but when changin my turbo hoses today sum how i managed to make the valve cap on what i think is a valve from the radiator a bit loose, which then fell into my engine bay and has now vanished.

i was jus wondering if any one knows what the valve is for and how i would go about getting a new cap for it as i dont really know what to ask the dealer for.

its the ^^^ valve on the bottom left of the pic with a black cap. thanks

 

[stpete]

Air con gas valve i believe.

 

[arge]

you are correct sir !

 

[2footpegs]

thanks for that. is it ok to drive around witout the cap on?

 

[Black TDI Turbo]

Its just a cap mate, its the same idea as a dust cap on your tyre valve just to keep the crap out will be fine.

 

[2footpegs]

o thats ok then i thought it might be some sort of pressure release thing. thanks for that