I guess it may depend on what version of INPA, EDIABAS, etc. you're using as to the status of the lights (i guess you mean the battery and engine dots?) , but I have an '08 e90 and my brother has an '07 e90 (but built in 10/2006 and therefore before the 03/2007 listed on the website) and we share the same K+DCAN cable without the other adapter. Neither of us have any problems with INPA, NCS, Progman, or WinKFP. Although, I can tell you the black dots don't come on for him either & they flash really fast with me.
2008 Crimson Red 335i
| Beige Leather| Light Poplar Trim| Premium| Sport| CA| Heated Seats| Shades| PDC| Active Cruise| iDrive| Alarm
1993 Black 850i