Quote:
Originally Posted by jjandlj
Looking for some thoughts on a weird one -
At Mid-Ohio this weekend with the M3 (2011 E90.) Both my daughter and I were sharing the car. EVERY time she was finishing up a session she had the SES come on for a 2F9 (coolant temp sensor) code. Read the code and reset it each time. It NEVER popped up when I was running, nor any other time. I can't imagine a scenario that would cause this weird behavior. No overheating. No limp mode. Ran great, other than the code getting thrown when my daughter was driving.
Thoughts?
Thanks in advance.
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Get a proper scanner--like ISTA, and check what your actual values are. You could have a temp sensor issue. Or you can have a tstat issue.
Need better information with data.
https://www.m3post.com/forums/showthread.php?t=460377