What is this hose?

I haven't got a picture of it, but it's the hose right next to the washer bottle filler cap. The one that gets in the way when changing the headlight bulb.

Just wondering as to see if it's possible to change it to a silicone one?

Any help be great!

:thumbup:
 
It would be possible, I would think.

But I think removing it would let the gas out of the system and you'd need to refill the Aircon...