Mike, what are your fault codes? The procedure is similar to the one you used to view the "actual values" and can be found in the manual dowloadable here: http://www.benzworld.org/forums/r129-sl-class/1266535-diagnostics-sl-pre-94-a.html?.#post2342164.

__________________
For Sale: many used R129 parts from a white '92, black interior. Send email if interested.