being a mk6 i'm asuming its the 1.6 zetec e silver top engine with the sefi fuel injection system. i had one and its a right fidly job!!

its in between the manifold and the head. i found the only way i could do it was losen off the top bolt from on top (after shifting the injector wiring out the way) and then go underneith to remove bottom bolt.

i hope you dont have big hands!