brake servo

[kenoid34]

Help needed, i was driving home the other day when i looked in rear view mirror and saw i was leaving trail of smoke (thought here goes another wallet bashing after spening to replace the bomb and other things!!) but after pulling up i found that it was the brake servo leaking fluid quite fast, after investigating further found the fluid was coming from a little hole (prob a breather or summat) as marked in the pic. Can anyone suggest what has gone wrong and how easy is it to remove the servo as i think it is the seals within the servo, just need to know if i`m right and if so how easy is the task

[S-Express]

is it not the seal in your master sylinder that has gone?
is that brake fluid that's leaked?

[kenoid34]

no the fluid you see in pic is from the high pressure side (power steering/brake accumulator) i know this as after driving home after pulling up (2-3 miles) the power steering made whining noise as i was pullin in drive prob due to lack of fluid, have checked the hydrolic resovoir and it has gone down lots ( was full when replaced the bomb)

[kenoid34]

good news, have now got the servo off (nightmare) and have found the problem !!! it is the seal on the shaft connecting the pedal to the master cylinder it has a tiny split causing it to leak fluid,problem solved. But the nex problem is where can i get a new seal from i think the part no` is 441 612 127 b=l-j that is what is marked on it it is the original audi part, any ideas