Steering fluid leaking

[mb1902.2]

Some time ago, I had a metal steering fluid line under the car replaced as it was leaking. Turned out that the plastic inside the metal holder of the metal line under the car had broken, so the shaking caused a hole in the metal line. I'm not sure what type of steering fluid went into the car back then, but now it's squeeking again. I've put in Gunk Power Steering Fluid, but not sure if this was the right thing to do. I see that it's leaking again, this time from the cylinder - looks like a seal is broken. I got the MB "steering gear fluid" so I want to replace all the fluid with this. Hopefully it's ebough. Does anyone know where to order a seal like this? (see photo).

Thanks

[mb1902.2]

Found the seal: "Power Steering Fluid Reservoir Cap Gasket" - it's all about terminology. Also found good thread on replacing the fluid - here's my only question: when I turn the steering wheel to bleed the system - where does the old PS fluid come out? Do Ii just scoop it out of the PS fluid reservoir?

Thanks

[tangofox007]

Disconnect the return line near the pump. Route it into a container or large can. The reservoir will be emptied very quickly, so have plenty of fresh fluid to add.

[mb1902.2]

Thanks!