Update - found a promising local shop that specializes in Mercedes, but they want no part of a Crossfire. I wasn't offended, but I was hoping they'd at least let me pay them a fee to read the codes. Nope. Nada. Found another shop a little further away, pending a reply from them - they specialize in luxury vehicles / imports (lots of reviews from BMW and Mercedes owners). Sounds like it'll be pricey to me! Will keep you all posted. Thanks again everyone, DadsXF

Also - onehundred80 - the adjustment procedure mentions that you are supposed to "supply current to the solenoid" when making the adjustment. Any ideas for "how" to do that? I assume maybe step on the brake with key on while trying to make the adjustment? Also, for what it's worth, stepping on the brake, I hear a click near the brake pedal, but nothing heard or felt in shift **** / gear selector area.