I did a search on the forums and found out that the dealership had cleaned the intake valves for another forum member for free under warranty, so I called them and asked them if they would do it, and they said they would. I don't know if they'll decline it once they see my mods though.
From the dealership point of view, it's a win for them because they just bill the work to BMWNA, so they still make money. Or at least that's how I think it works. Correct me if I am wrong.
2008 monaco blue e90 335i ZSP|ZPP
Last edited by lilballa; 04-15-2012 at 01:09 PM.