I cannot understand how a CEL can set yet there is no code stored.

Not a 'current' or 'active' code, but any code at all....

Cant do a damn thing without a code. And every bmw I've seen stores a code when it sets the CEL.

Dealers will reset all codes, then run it to see what shows up- if they did this then sure, there are no current codes- but you want the codes read immediately and want them written down on the shop notes!

GL

A