I have a Canon 5D mark 3. AEB doesn't work in manual mode.

[snertshvemofun]

AEB isn't working in Manual mode on my 5D mark III

[schmegg]

Works fine here. (even in Auto-ISO!)

[Mykolas]

Snertshvemofun,

I would like to help, but I need some more information from you. 

What exactly is not working with AEB in the Manual mode?

Are you unable to activate AEB at all?

If this is a time sensitive-matter, additional support options are available at Contact Us.