I'm also having vanos issues at 29k miles. I am taking off all my mods and taking to a dealer. I have a permanent check engine light right now.
Current: 2011 Honda Accord.
Past: 2013 335i 6mt msport
JB4, ER Downpipe, ATM FMIC, aFe Momentum PRO 5R Intake, Pure Stage 2
Past: 2011 335i coupe 369 whp/444 torque