Excellent link to have as part of this thread!

A little update on the car I'm working on: Runs fine and today I replaced the leaking o-rings on the engine coolant t-stat housing and oil level sender. However, was getting a "check engine electrics" message on the instrument cluster. Took it to a local Mercedes only Indy and paid them to read and clear the codes. Kept getting a code coming back and their Mercedes factory scan tool was showing a string of codes related to the instrument cluster. They suspect the "K40" module inside the electronics box on the left inner fender area. Popped it out, moved it around, tapped it with a screw driver handle and the codes were able to be cleared and didn't return. So it looks like there's more fun to be had with this car!

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