X218 ABS/ESP fault

[renrutp76]

Thanks for taking the time to read this....

I recently had my front wheel bearings replaced, with Febi units. When I collected the car, the guy said that one of the ABS pickups must have been faulty as the car was displaying several different faults (ABS/ESP/ Tyre warning unavailable). I have had the codes read as follows: -

442800 Left Front Axle RPM sensor has a mechanical fault current & stored
446800 Right Front Axle RPM sensor has a mechanical fault current & stored
457500 At least one of the RPM sensors is delivering an incorrect rotation direction.

The faults were cleared, and the live values were observed on a test drive, all 4 wheel speeds were consistent with each other within 1-2 miles per hour.

However the fault will not clear even with a Star diagnostic.... any ideas...?

 

[bertb1]

Probably needs new sensors
Mine did when showing the same faults


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[renrutp76]

Probably needs new sensors
Mine did when showing the same faults


Sent from my iPhone using Tapatalk

I agree, but I can't figure out how all wheel speeds are consistent in star diagnostic......

 

[Juhani Vuorio]

Thanks for taking the time to read this....

I recently had my front wheel bearings replaced, with Febi units. When I collected the car, the guy said that one of the ABS pickups must have been faulty as the car was displaying several different faults (ABS/ESP/ Tyre warning unavailable). I have had the codes read as follows: -

442800 Left Front Axle RPM sensor has a mechanical fault current & stored
446800 Right Front Axle RPM sensor has a mechanical fault current & stored
457500 At least one of the RPM sensors is delivering an incorrect rotation direction.

The faults were cleared, and the live values were observed on a test drive, all 4 wheel speeds were consistent with each other within 1-2 miles per hour.

However the fault will not clear even with a Star diagnostic.... any ideas...?

Hi, having the same failure code 442800, replaced sensor but no help, how did you corrected this problem on your car?

 

[John77]

I had ABS/ESP lights on my 2005 Eclass after work on the suspension. On mine I was lucky and on the advice of another member on here, I went to an empty car park and did a full circle on full left lock, then full circle on full right lock and this turned the lights off. Hopefully may work for you.