Well didn't do anything productive today except get a runaround from Mercedes (lack of) Service Center.
Decided to get the 609 license out of the way. I was going to study the material one more time, tomorrow on my trip. But figured what the hell I'll just take it.
My advise. Download the Acrobat Reader file, Print it out, 48 pages, read it 1-2 times and take the test. $19.95 at http://www.epatest.com/
You get 3 hours to take the test. That is more than enough time. I took 25 mins to complete the test with only 1 wrong answer.
Now that 1 wrong answer was not wrong. I reviewed the manual and my answer was correct. I emailed them to let them know the computer is scoring that question incorrectly.
So I now have the 609 license and can buy that liquid gold R12.

Dave

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1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car