Can anyone tell me how i can remove the headlamps from my W Reg A6 Avant without taking off the bumpers, want to be able to it myself.

Secondly im taking them out to replace them with Allroad headlamps which are Xenon because i like the style rather than xenon upgrades. I already have the lamps and curious to know once the pin connector has been put in will it light up using the existing loom.

Thanks