This is a climate control from a 1999 C230 Kompressor (see picture). Does anyone know if it can be put into a diagnostic mode, similar to the other models? I'd like to get some of the sensor readings in order to diagnose a problem. I've already looked at these, but I don't think they apply:

http://pages.prodigy.net/jforgione/MB_AAC.html
http://www.continentalimports.com/ser_ic40142.html

Any suggestions would be appreciated. Thanks,
Don

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2008 ML350
2007 Honda Element
2007 Honda Accord
2009 Honda Civic