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  #1  
Old 08-01-2014, 06:25 AM
gbmw2001 gbmw2001 is offline
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ABS Tone Ring Cracked - Replacement

I have a 2001 330I issue where the traction control is engaging all the time on smooth dry surfaces and the ABS will sometime engage. I took it to a local shop and they said the left rear tone ring is cracked and needs to be replaced (associated sensor is also shot). They said the part was not available even from a dealer and that instead the entire axle would have to be replaced. I looked at a few parts sites and can't find the part. Is anyone aware of where to get this part or is the shop correct in saying that the axle needs to be replaced? Irronically this shop did brake work on the car 1 month prior. Is it possible that they did something incorrectly which could have caused the tone ring to crack? Thanks....
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  #2  
Old 08-01-2014, 10:37 AM
marcozandrini marcozandrini is offline
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I say BS on part availability from the dealer! But, it does look like the rear wheel speed rings are attached to the axle.

Personally, I'd find another mechanic. Get recommendations from the Windy City chapter of the BMWCCA. It has a website, and members are happy to make recommendations.


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Old 07-31-2017, 07:34 AM
Monkeywrenched Monkeywrenched is offline
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Quote:
Originally Posted by gbmw2001 View Post
I have a 2001 330I issue where the traction control is engaging all the time on smooth dry surfaces and the ABS will sometime engage. I took it to a local shop and they said the left rear tone ring is cracked and needs to be replaced (associated sensor is also shot). They said the part was not available even from a dealer and that instead the entire axle would have to be replaced. I looked at a few parts sites and can't find the part. Is anyone aware of where to get this part or is the shop correct in saying that the axle needs to be replaced? Irronically this shop did brake work on the car 1 month prior. Is it possible that they did something incorrectly which could have caused the tone ring to crack? Thanks....
Did you ever figure this out? I'm having the same problem with mine, the dealer is saying both axles' tone rings are rusted and swelling.
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Old 07-31-2017, 07:54 AM
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Zeichen311 Zeichen311 is offline
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Quote:
Originally Posted by Monkeywrenched View Post
Did you ever figure this out? I'm having the same problem with mine, the dealer is saying both axles' tone rings are rusted and swelling.
Then, unfortunately, you need to replace the axles. The tone ring is not available as a separate part.
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