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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 10-20-2009, 11:12 PM   #1
RicardoGomezH
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Join Date: Jul 2009
Location: Portland Oregon
Posts: 7
My Ride: 2004 330ci ZHP
Check engine Light quick question

Hi There,

My service engine light come on a couple of days ago. I took my car to Autozone for one of their free diagnosis, to find out that (according to their machine) my MAF sensor needs replacing.
I don't wanna drop 200 bucks on a sensor and find out it didnt fix the problem. I tried using the MAF sensor cleaner, but didnt do anything... the light still on.


Anyway.. my question is: If i replace the MAF sensor, will the light go away on it own? (considering the diagnosis was correct). Or does the light need to be reset somehow after i fix the problem in order to go away?


Thank you
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Old 10-20-2009, 11:37 PM   #2
mack89
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Join Date: Jan 2009
Location: Texas
Posts: 2,334
My Ride: '02 TIAG 330i 5spd
Yup, as long as the MAF is only thing causes SES light, then it'll go off by replacing it to new one.
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