but... but... .I LIKE bacterial sludge!
I DO dilute the washer fluid with distilled water, tho, because
we tend to have it around for radiators, etc...
Funny- the E36 says to use a needle or pin to aim the squirters,
but the E46 says it's verboten?
I use the 0.020 GMAW wire, too, or even just
a bristle off a very stiff wire brush.
And compressed air- if the container's mostly empty, you can
blow out the entire system from the nozzle backwards.
But sometimes a hose pops off if the factory clamps aren't on there.
The touring's a perennial pain to keep the hatch squirter working,
and it's one of the few cars I've ever owned that really needs one.
fwiw,
t