I can't help with your specific questions I'm afraid .... But what kind of dealer is this? Doesn't sound like they now their stuff! I'd be tempted to find another dealer who can get the answers your looking for ... Not just saying they don't know.
2016 BMW 340i .. driving it like I stole it !!!
2016 Golf GTI .. gone
2014 Lexus NX .. gone
2012 BMW 330d .. gone
2009 MB C250 .. gone