F31 ABS missing tooth

Moto749r · 12-07-2021, 12:47 PM

Hi

So I wonder if anyone can help me out. My F3Q is throwing a code for front ABS missing tooth. The reluctor ring is part of the hub/wheel bearing assembly BMW part number 31206876840.

So I ordered a *** Replacement (I believe *** is the original part manufacturer)

Anyway I can't see a reluctor ring on the part.

Does anyone have a pic of the front wheel bearing assembly showing the abs ring? Or is it behind the cover?

Oh my car is not xdrive so there is no drive shaft and splines etc.

im_an_alien · 12-07-2021, 01:33 PM

It's under the cap on the back, integrated into the unit. Just make sure it's an abs unit.

Wires · 12-07-2021, 05:28 PM

Have you checked the ring / pickup? Sometimes filings get on there causing reading issues and just needs to be cleaned off.

Unless you where beating it with a club, it would be impossible for a tooth to go missing naturally.

12-07-2021, 12:47 PM	#1
Moto749r New Member 4 Rep 18 Posts Drives: BMW F31 330d M Sport Join Date: Mar 2019 Location: Mansfield, Nottinghamshire iTrader: (0)	F31 ABS missing tooth Hi So I wonder if anyone can help me out. My F3Q is throwing a code for front ABS missing tooth. The reluctor ring is part of the hub/wheel bearing assembly BMW part number 31206876840. So I ordered a * Replacement (I believe * is the original part manufacturer) Anyway I can't see a reluctor ring on the part. Does anyone have a pic of the front wheel bearing assembly showing the abs ring? Or is it behind the cover? Oh my car is not xdrive so there is no drive shaft and splines etc. Attached Images
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12-07-2021, 01:33 PM	#2
im_an_alien Major 1122 Rep 1,496 Posts Drives: 2016 340i Join Date: Jul 2019 Location: Florida/NH iTrader: (0)	It's under the cap on the back, integrated into the unit. Just make sure it's an abs unit.
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12-07-2021, 05:28 PM	#3
Wires Brigadier General 1644 Rep 4,872 Posts Drives: 2016 340i xDrive Join Date: Apr 2008 Location: Calgary iTrader: (0)	Have you checked the ring / pickup? Sometimes filings get on there causing reading issues and just needs to be cleaned off. Unless you where beating it with a club, it would be impossible for a tooth to go missing naturally.
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