engine conversion

Hi, I have just bought my first Merc. Near the speedo, a warning light has come on- looks like the outline on an engine and is illuminated in brown/orange but working my way through the menu its says no malfunctions. There is also a strong smell as if the engine is running too rich. Could this...

Hi guys Having been inspired by this: http://www.mercedes-fans.de/autoderwoche/autoderwoche_artikel/id=795/start=0 I've decided to do an engine swap on the W123 CE I'm about to buy. We've just dropped a modern XJ Jag engine into a 60s Mk2 Jag and also have a lot of experience dropping...