I removed the headlight assembly ... there was one bracket that was a PITA to get my hand around to unplug the pump... but I remember being able to see it rather easily.. hm..
How often do you use the HL washer? I disconnected mine for two reasons: 1) I really don't see the point of it as I'm not driving through a lot of mud or snow. and 2) when the washer comes out, it catches on the bumper and won't retract and pulls down the bumper, causing more sag. :(

¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯2000 A4 2.8 quattro [ Tip | Sport | Xenon ]¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯¯