My COMAND unit in My S/CL says “No Navigation” when I press NAV or MAP – what is wrong?
Mercedes supplied COMAND without navigation in certain models/markets. The units seem to be identical but have different software in them – and it is not clear whether such vehicles have the GPS antenna installed in them. The answer is to replace the unit – but there may be other ways to enable Navigation – although the dealer can not do it from their Star Diagnosis system. 22. Can I add an AUX input on the COMAND 2.5 in my S-Class No, the input electronics is used for the tape player. The widescreen COMAND 2.0 in later S-Class vehicles has an AUX input capability as it does not have an integrated tape player. f you have the TV tuner option then that has 2 auxilliary video/audio inputs on it. The later units have phono connectors (RCA), before that you needed a special loom – often found on ebay. 23.
