Quote:
Originally Posted by Volkom
Just got back from the car- there's a lot of codes but a lot of them are just radio select switches being held down too long/power mirror undervoltage.
Two questions- will removing the battery to charge it outside of the car erase the ECU fault logs
Is there a way to save the ISTA output to some sort of text file or printout? I was unable to find anything while searching so i just took screenshots
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Yes, you can disconnect your battery and your cars puter will retain the codes. Go here and plug in your codes and start reading, read all your codes and all the "view" links, write down your summary and what steps you will take per each code. Sounds like a sensor or valvetronic motor failure. I suspect many of your under voltage codes are a result of you trying to start the car and the lights dim as it takes all the power from your battery to try and turn it over but read those codes too.
Go here, plug in your code, engine number, captcha, and start reading -->
https://bmwfault.codes
You will see a result like these.. ..
.