To clarify the correct charge amount, on a 2000 V70, the amount of R134a is 750 grams (aka 1.63 lbs or approx 28 ounces). I have the exact same car, 2000 V70 X/C. Below I attached a picture of the label from my hood. You can see where it says the 80 series cars (S80 I assume) call for the larger ...

"Yeah, whatever"? Not the best way to approach Volvo maintenance or recruit forum contributors. I was merely summarizing a wide collection of posts that I've read on the subject. Sorry for trying to help.

It would be helpful to know exactly what a/c issues you're having.

If the system is VERY low on R134a, the compressor won't kick in, making the low-side pressure too high to charge. You need to find the low-side pressure switch on the a/c line up against the passenger-side firewall. Unplug the ...

Ah the Magnefine! Amazing invention. I almost spliced this into my transmission line but decided to go with the spin-on filter instead (simply for ease of replacement and additional fluid capacity). I did however put a Magnefine in the power steering return line just before the reservoir (after ...

Definitely agree with the drain-and-fill procedure as opposed to a shop power-flush. I have no data to prove those machines cause evil, but I don't trust them blasting fluid at unknown pressures along with tiny bits of shredded metal into my transmission.

I will say that a fluid change (i.e ...

Based on the pics you posted of the underside of the car (#2 and #3), it looks like your turbo oil return pipe is leaking. It will cover the back end of the block, oil pan, transmission, and subframe with oil. These leaks are common and can be anywhere from mild to hideous. The parts to replace are ...