achim_phoenix43
Mercedes S Klasse ABS and Traction Control Problems
4 comment(s)
achim_phoenix43 (Author)
Interesting. Where exactly is that input speed sensor located? And was the ABS system completely failing for you as well? I'm trying to get a handle on if the control unit is really the issue.
robertschulze1
Yes, the ABS functionality was indeed impaired. It's located on the transmission, where it reads the transmission output shaft speed. However, considering the symptoms you described and the potential control unit issue, I would recommend taking it to a qualified workshop for a diagnostic assessment. It's better to be sure before spending money.
achim_phoenix43 (Author)
I appreciate the insight. It ended up being a defective control unit, just as suspected. It cost me around 1000€ to sort it. Thanks again!
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robertschulze1
I experienced a similar issue with my S Klasse. The ABS light illuminated intermittently, and the speedometer exhibited erratic behavior. Have you had the input speed sensor checked? That was the source of my woes.