C-Class (W204) 2008 - 2014: C180K, C200K, C230, C280, C300, C350, C200CDI, C220CDI, C320CDI

ABS sensor still faulty after replacement

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Old Aug 4, 2023 | 07:47 AM
  #1  
ambreh's Avatar
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S204
ABS sensor still faulty after replacement

I had an issue with the front abs sensor from my S204 C-Class. I read the error codes with Carly and it came up like this:

C110700 - The signal of the component 'L6/1 (speed sensor front axle left)' is implausible.
C200100 - The supply voltage of the control unit 'N30/4 (Electronic Stability Program control unit)' is too low (undervoltage).
C326600 - Subsequent error
C327100 - ESP wheel speed at front implausible
U041500 C41500 - Implausible data has been received from the 'ESP®' control unit. - Current and saved

After that I went and bought a new sensor from ATE with the article number ATE 24.0711-6189.3 and changed it.
I rescanned and deleted all the errors with Carly. But now the issue is still not gone. I rescanned everything and I now got this error codes:

C110000 - The component 'L6/1 (speed sensor front axle left)' has an electrical error C110700 - The signal of the component 'L6/1 (speed sensor front axle left)' is implausible
C326600 - Follow-up error
C327100 - ESP wheel speed at front implausible
C41500 - Implausible data has been received from the 'ESP®' control unit. - Current and saved

I read several threads but I couldnt find anything similar.

Any idea what it could be or what I should/could check? The error came up the first time during driving, nothing spectacular happenend then. Car is still driving fine withouth issues besides the pop ups and the ABS, ESP Systems being off.

I would really appreciate some advice
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Old Aug 4, 2023 | 02:57 PM
  #2  
alynch's Avatar
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From: Panama City, FL
2020 C300, 2013 C250, 2000 Boxster S
Originally Posted by ambreh
I had an issue with the front abs sensor from my S204 C-Class. I read the error codes with Carly and it came up like this:

C110700 - The signal of the component 'L6/1 (speed sensor front axle left)' is implausible.
C200100 - The supply voltage of the control unit 'N30/4 (Electronic Stability Program control unit)' is too low (undervoltage).
C326600 - Subsequent error
C327100 - ESP wheel speed at front implausible
U041500 C41500 - Implausible data has been received from the 'ESP®' control unit. - Current and saved

After that I went and bought a new sensor from ATE with the article number ATE 24.0711-6189.3 and changed it.
I rescanned and deleted all the errors with Carly. But now the issue is still not gone. I rescanned everything and I now got this error codes:

C110000 - The component 'L6/1 (speed sensor front axle left)' has an electrical error C110700 - The signal of the component 'L6/1 (speed sensor front axle left)' is implausible
C326600 - Follow-up error
C327100 - ESP wheel speed at front implausible
C41500 - Implausible data has been received from the 'ESP®' control unit. - Current and saved

I read several threads but I couldnt find anything similar.

Any idea what it could be or what I should/could check? The error came up the first time during driving, nothing spectacular happenend then. Car is still driving fine withouth issues besides the pop ups and the ABS, ESP Systems being off.

I would really appreciate some advice
It could be the tone ring on the hub that the speed sensor reads. I would try a few things. First, verify that your new sensor is fully seated in the hub; even a slight misalignment can cause a problem. Second, verify that the electrical connection between the new sensor and the wire harness is secure and not corroded. Third, verify that there is no physical damage to the wire harness. Lastly, try swapping the speed sensor from the other front wheel and see if the problem persists. New parts can sometimes be bad.
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Old Aug 4, 2023 | 03:33 PM
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ambreh's Avatar
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S204
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Unfortunately, I bought the wrong sensor!

On my registration, the car is late 2010, but it's already the 2011 model.

That's why the sensor is not recognized, as I ordered and installed part number A2045400117, but it should have been an A2049057900. Unfortunately, I was so uninspired and did not match the part number.

I have now ordered the new sensor and will let you know as soon as it arrives and is installed.

https://mb-teilekatalog.info/view_Su...=54&subgrp=679
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