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      02-20-2018, 06:09 PM   #1
bcornwellatl
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check eng light but all systems ok??

All,

Have you ever had the check engine light come on, but when you do a system test it shows all systems ok? I also did a check engine oil (measure) and it shows full - I've disconnected the black terminal from the battery for about 20 seconds and still the light is on... nothing seems to be broken - the car drives fine? but I've got to drive home tomorrow (another 300 miles) and just wondering what it could be?

oh and I've turned off the car a few minutes to see if that may help, but it's still on when I crank it back up....
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      02-21-2018, 07:50 AM   #2
enjoythemusic
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Get a code reader.
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2014 435i M-Opt, M LSD, Dinan CAI/IC/BTurbo/Stage 4, ER TIC/CP, GFB DV+, Fabspeed HJS cat DP & Mich PS4S.
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      02-21-2018, 10:39 AM   #3
switchman
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Could be thermostat issue; had the same problem recently. I borrowed code reader from Advance auto found P0597 which is failed thermostat.
BMW has extended warranty to cover this problem.
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      02-22-2018, 12:40 PM   #4
vooonoo
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Check your gas cap
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      03-14-2018, 12:27 PM   #5
N52 Moistenor
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the system check thing on your iDrive and the CEL are two unrelated systems. you need to get your car scanned.
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