Originally Posted by AcidLotus
Sedan doesn't have blueish rings in LCI, even up to 2012. Also 2009 sedan has N54. LCI doesn't mean it has N55, which appeared in 2010. 2009 and above sedan does have hdd based navi called CIC, with more buttons on the i-drive controller.
2010 was still the N54 for the E90. 2011 brought the N55.