What type fuel injection on a 560SL?

[KCM]

Been doing some research but have not had much luck finding out exactly which type of Bosch Jetronic fuel injection is on a 1989 560SL. All I find is that it is a CIS system. I have ruled out D-Jetronic and am left with K, K-Lambda, KE, and L. Anybody have any idea which one it is?

FYI, found a quick summary of the systems on http://en.wikipedia.org/wiki/Jetronic.

[page62]

I'm pretty sure it's KE-Jetronic.