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RPM actin crazy after a new MAF installed ?

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Old 03-23-2017, 04:24 AM
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BMW MAF is the cheaper one but they it is a Bosch
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Old 03-23-2017, 11:16 AM
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Originally Posted by seanjordan20
If it is the MAF making it jump then the new one might be bad. Is the new one OE or aftermarket/OEM. If its aftermarket/OEM then get you an OE. That should correct it. If it is indeed and OE then you might have been sent a bad one or the wrong one.
It's an OEM Bosch! I got it from eBay and i have claimed a return or exchange for it. I am waiting currently !!
Do you know anything about the (The BMW Intelligent Battery Sensor (IBS) I have read it might be the issue of the starting before i can say it is the starter ?What do you think?
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Old 03-23-2017, 11:36 AM
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The OE MAF is a Siemens product.
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Old 03-23-2017, 12:10 PM
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Originally Posted by jtbgonesailing
The OE MAF is a Siemens product.
which means....?
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Old 03-23-2017, 12:23 PM
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Originally Posted by OSI550i
which means....?
It means, Siemens VDO was the original Mas Air Flow Sensor supplier to BMW when your car was manufactured.
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Old 03-23-2017, 02:00 PM
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Originally Posted by jtbgonesailing
It means, Siemens VDO was the original Mas Air Flow Sensor supplier to BMW when your car was manufactured.

Yes Siemens was the OE but I believe now it is bosch. I think it has been discontinued.
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Old 03-23-2017, 02:04 PM
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Originally Posted by OSI550i
It's an OEM Bosch! I got it from eBay and i have claimed a return or exchange for it. I am waiting currently !!
Do you know anything about the (The BMW Intelligent Battery Sensor (IBS) I have read it might be the issue of the starting before i can say it is the starter ?What do you think?
I have never heard of that. Post a link. The IBS has nothing to do with the starter engaging the flywheel other than helping to provide the power. What I think I am hearing from your video is the starter engaging the flywheel too long.
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Old 03-23-2017, 02:07 PM
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. I think this is what I am hearing from inside your cabin.
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Old 03-24-2017, 03:14 PM
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Originally Posted by seanjordan20
check this video out. I think this is what I am hearing from inside your cabin.
I am not sure if i have similar sound in my car but it could be the starter!
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Old 03-24-2017, 03:17 PM
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See how the RPM in the 5th second jump suddenly ! This is what i am having everyday and every morning the rpm will jump very high when i first start it in the morning. Also, while i am coming to a full speed, you will feel that like someone just kick me from the back !! any idea ?
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