S-Class (W221) 2007-2013: S 320 CDI, S 350, S 450, S 500, S 550, S 420 CDI, S 600

wheel sensor ?

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Old 10-28-2023, 07:52 PM
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2007 Mercedes-Benz S550 W221
wheel sensor ?

hello s class owner i wanted to see if maybe there is a part number for what im looking for or could be told what it is,not sure if it is the wheel speed sensor or not but i am missing one of them on one rear wheel . (photos added)

Old 10-29-2023, 07:10 AM
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S500
can't tell what your photo is trying to show

three bits of electrical fun operate around the back wheels

ABS wheel speed sensor
Pad wear sensor - one wheel only
At the wheel its a bowden cable but its operated by the EPB an electrical module near the left rear wheel

if the ABS sensor is missing you will be missing two important safety features and should have warning lights







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