I have a 2002 S500 with a headlamp failed. I bought a replacement but I am unsure how to install it. I know that sounds silly but there's the headlamp assembly and there is not enough space to get a hand in the back of the unit. (The windshield washer fluid tank is right there.)

So does anybody know how that is done? Do remove the assembly? It looks like just two bolts securing it. I just don't want to do something dumb and have a lot more work on my hands fixing it...

Thank you.

Mogray