right who can help this time....?

whenever i have loss of turbo, generally at lows speeds/rev, i have solid breaks.
its intermittent i.e if i had been driving at 60 and came to a roundabout, sometimes on the first application of breaks all is fine, then within seconds on using them again they go solid.

someone looked once and literally fiddled around and the problem disappeared for weeks....

heres someones answer that i would need clarifying....

"hi have you solved your problem of hard brakes and intermittant loss of turbo
i have a 2.0 hdi 2006 scudo and have solved my problem of loss of servo and turbo loss it turned out to be a diaphragm with a hole in it i used a mitty vac to test the lines and traced back to the fuel/air diaphragm having a hole in it
the unit is located in front of the vacuum pump on this model, hope this has helped because i have replaced vac pump, servo, master cylinder, one way valve and brake pads before i found it good luck jim!"

where is this diaphragm? can anyone please help?

so its sorted...

I swapped the vacuum pump with a 2nd hand one and its fine....

This brake problem is a problem steming from the vacuum pump to any other part that could cause a loss of vacuum, split hose, diaphragm, faulty part....its just finding which one it is.

Its nothing to do with the master cylinder or servo as many have found out after replacing them and having no improvement.

I hope this helps someone out.

I'd add "thanks" to your post if I knew how. So, thanks!