CHECK ENGINE LIGHT IS ON

[caposto]

Originally Posted by mig25

After driving with a check engine light on for one year, I finally fixed it.
It turned out back in 2015 I changed the fuel filter and used a Mahle filter I bought on Amazon for around $50 or so.
Last Saturday I replaced the fuel filter once again, now I used an OEM BMW filter I bought at Pelican parts for $107.
I reset my check engine light , it is now gone.
I think the problem was the in filter pressure regulator for non OEM does not have the correct fuel pressure, hence check engine light was on showing codes P0172 and P0175.
P.S
The OEM BMW fuel filter also says Mahle on it , but also has a BMW Logo on it.

Seems like a logical cause-and-effect there, but I highly doubt the filter 'spec' is any different. I'd be looking for the SES to come back on.

[mig25]

Originally Posted by caposto

Seems like a logical cause-and-effect there, but I highly doubt the filter 'spec' is any different. I'd be looking for the SES to come back on.

Wrong.
Before when I reset the light it would come on the same day. After I replaced the fuel filter with OEM one, its been now 900 miles no check engine light anymore