Thank you for coming back to me. I have ordered a new front SAM as I am fairly sure it is part of the problem, however I would still like confirmation from someone regarding the Terminal 61 tests that are outlined in the Mercedes guided tests in Mercedes Star diagnostic system. My results are not those described in the tests and those that I have seen reported on some forums.
I understand that my question may be long winded and complicated but the issues I am having with the car, whilst appearing to be common symptoms with this particular model of car are not quite equating to any answers I have currently found and that includes my local Mercedes main dealer.
I look forward to hearing from yourself or a technician/expert in due course.