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      01-23-2022, 09:08 PM   #20
thenew3
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Drives: 2020 X7, 2016 X3
Join Date: Oct 2015
Location: Central coast CA

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Quote:
Originally Posted by Greenman7612 View Post
According to my trusted service advisor, the engine is running too lean and making higher levels of CO than should be. I was worried that they would screw up a good thing. After reading this forum, Iím less worried.
I got recalls for 2013 528i and my 2017 X3.
If it was running too lean and they are reprogramming to run a bit richer, does that mean it's going to use more fuel thus making the mpg worse?
Appreciate 0