Cleaning Inside Of Headlamp Lenses

[Clueless]

Hi,

 

Newbie here. Looks like a very helpful and informative forum

 

Hoping for a bit of help please. I have a Citroen C5 2001 model with the old ordinary ( ie non Xenon ) headlamps. The car is second hand and must have been left standing without the plastic headlamp backing cover on one side for a while as there are dead insects (yes....dead insects! ) inside the headlamp unit...... Is it straightforward to remove the headlamp unit and will this knock out the light alignment ? If it involves removing the bumper, i'll think i'll leave it

 

I know that from bitter experience that the bulbs are a bit of a bugg@r to change. Am going to send the wife to Halfords the next time so that I dont have to fill up the swear jar again. I'm such a coward ! :o

 

Thanks