The conditions : downhill on a wet road (not too wet)
How I was driving : deceleration and was going less than 30kph and braking for the upcoming stop at the botton of the small downhill.
That's why I found it weird to happen at that time. Only other time I saw this error was after disconnecting the battery (and I did check the battery connection to make sure). Did try to replicate the issue in similar condition and 150km later still didnt came back. Will keep cobb removed for a week at least to see what happens.
2009 E92 335xi - MT6 - Black Sapphire Met - Coral Red - Sport & Cold Weather Pkg - VMR VB3 Gunmetal - Aero Lip - CF Trunk Spoiler - LUX V4 - BMS CDV & Clutch Stop - BMS OCC - RD Front Strut Brace - COBB AP V3 - COBB Catback Exhaust - Injen DCI - ER CP w/ Tial BOV - Daily Driven