Lakulaku

Hello, I' a newbie.

I got a 2007 E550T and wonder if there's a "secret menu" for some extra even I do not have Comand?

Diesel Benz

Fist, if you do not have Comand, can you let us know which HU you do have. More than two are available for European cars.

Secret menus may give some real headache for extra if you are not very careful. I don't remember any service menu for the other HU models, the cluster has some along with the FSS menu but you would not gain new features etc.

I'd suggest you to enjoy the car as it is, unless you really want to retrofit some OEM stuff.