Is this my power steering pump?

[hellomoto]

So how do you check / top up the oil om the the AC compressor? Anyone?

[89Vette]

So how do you check / top up the oil om the the AC compressor? Anyone?

There is a guage (you have to buy) that looks similar to a tire guage. There should be a shrader-style valve on the compressor or in the high pressure line going to the compressor.

You have to figure out what the pressure is supposed to be when full then measure to see if you match that amount. If not, you could fill it, but it will continue to leak. If the leak pictured is really the oil mixed in with freon, that would be a healthy leak. As such, it would require siphoning all the freon into a tank, repairing the leak, vacuuming the system, and reloading the system with freon. That takes a lot of equipment.

Even if you fill it at home, you'd also need to buy a filler hose (in addition to the guage) and correctly hook it up to the system. Then, you'd have to keep refilling it until repaired. While left unrepaired freon leaks into the atmosphere.

Are you getting a sense of why this usually isn't a DIY project?

Edit: Unless the filler hose has a guage built-in. BTW: Freon and oil are mixed together (kind of like oil/gas in a 2-stroke motor). Ones there for refrigeration, the other for lubrication. But, I think the leak pictured would more likely be from power steering than A/C.