How do I break loose bleeder nut on self-leveling controller?
 

Hi,
Trying to break loose the bleeder nut on the controller valve of the SLS system. Its seems to well rusted in and despite using a flare wrench I cannot get it loose. Also used penetrating oil.
Any ideas on how to get some leverage behind it?
Cheers
farrukh

ps. car is 95 wagon

I could not get mine (1991 560 SEL) to open neither. So I opened one of the lines on the accumulator and put a small cup under it to get all the fluid. If you have fluid in the accumulator, it will a long time to drain them out with or w/o openning the bleeding valve