Anybody know what the black box which sit between the washer bottle and the expansion tank is? Mine is making a loud clicking sound when idleing sounds like injector clicking but from the box and louder.

its your charchol fuel fume reclcyer nothing to worry about they all do it see the sticky http://www.briskoda.net/forums/octavia/should-i-worried-about-unusual-noises-my-1-8ts-engine/14529/

Great ta

no problem

bar the spelling

Very annoying isnt it?

I find using top grade fuel helps keep it off

i find it only does every now and then