When I got home last night...I opened my 650ix's hood to see if it was similar to the pic posted above...and it was. The R134a connection was visible in the opening on the passenger side (LHD) just like in the pic above/below. To bring this thread full circle...post back if it is the same for the M6 with the
S63N engine so that way the collective will know that this is the location to find it.
Hope this was helped you with whatever you needed it for.
