I've already put in a call to attorney. Will get an estimate from Benz dealer. I do not plan on taking my car back to this ...

But I would like to know how to
a) check the vacuum pump under rear seat: hwo, what tools, process, norms??
b) find any leak that might exist now
c) how to get the correct wiring on this or a new pump
d) how to diagnose the turnk light always on???
e) the process for testing the larger red wires behing dash that were melted
e) how to resolve shorts and avoid fire or breakdown
f) whether a new wire harness is the way to go.

Comments? Suggestions?

Thanks in advance.

RM