Hi all! I'm hoping some of you have some experience with my issue....I have a 2014 535d, purchased CPO - I'm second owner, which just rolled over 100k miles. It has been well maintained with oil changes, etc., and the only repairs to my knowledge are a new O2 sensor and Nok sensor in the last month. Last week, the engine seized while idling with no lights or warnings. It just shifted into neutral. I towed it to my regular mechanic (only works on BMWs) first - he checked the typical places like oil and timing chain, and said he's never seen one behave like that in his experience. He suggested towing it to the dealership. I was never notified about the EGR recall, and it has not been done, so we were hoping perhaps sucking in bad exhaust could be the culprit to the seized engine...or at least that they couldn't say it didn't cause it. They have it now, and I am waiting for them to come back to me with info as to the possible cause. Here are my questions: 1) anyone else have an experience like this? 2) could someone confirm the powertrain warranty for this engine? 3) any other experiences with dealerships and/or BMW NA as to dealing with situations like this, particularly as it relates to expectations on length of time to resolve?