Iant168

Hi, newbie on here for posting, but have gratefully received many solutions to previous issues reading other posts through Google.
I have a Vito Camper conversion 2004 model.
The brake servo failed this week, and I am in process of replacing both it and the master cylinder with a unit from eBay.
I have removed the fluid container and master cylinder no problem.
But now the servo...
Having removed the 4 retaining nuts that secure it to the bulkhead frame, I am left with needing to disconnect the servo from the brake pedal.
Has anyone advice on this as I cannot see where the pin and retaining clip that need be removed are located!!
Can this actually be achieved without major dismantling of the vans interior??
Hopefully someone on the forum has completed this task successfully!!
Cheers, Ian.