Quote:
Originally Posted by BMW530ia
Thanks for the reply. Not happy about that news either. I guess I'll put the stock tune back on and see if that gets me to pass. Thanks again for the info.
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Sounds "off" to me.
My 2011 has had a tune almost since it was new. PO never switched tunes back to pass in NY across those 5 years or so. Sure, he might have been lying or recalled the facts wrong, but he was clearly a set it and forget it owner.
Having mentioned that, my prior X5M (2010) tended to throw a CEL pretty quickly with the catless DPs installed and a factory tune.