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Eric
Eric, Automotive Repair Shop Manager
Category: Mercedes
Satisfied Customers: 31323
Experience:  20+ yrs. experience as repair shop manager and technician.
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When should speed sensors be replaced? Yes, MB 200C 2012,

Customer Question

When should speed sensors be replaced?
JA: Does the sensor have a wire-wrapped magnet? If so, have you checked it with an ohmmeter?
Customer: Yes
JA: What is the model/year of your Mercedes?
Customer: MB 200C 2012
JA: Are you fixing your vehicle yourself? What have you tried so far?
Customer: Fault code is C110200, C32600, C327100. Status S
JA: Anything else you want the mechanic to know before I connect you?
Customer: Am in a service center now. Just want to make sure of need to replace speed sensor
Submitted: 7 months ago.
Category: Mercedes
Expert:  Eric replied 7 months ago.

HI,

Ok, the codes dont actually tell us if the wheel speed sensors are bad or not. They tell the area of concern, in this case the speed sensor circuits.

The shop should test the speed sensors with a Mercedes STAR scan tool to see if they are bad. If so, replace them. If they test good, then the wiring harness has to be tested for short to ground or open circuit and repaired as needed. IF both the sensors and the wiring are good, then the ABS control module is faulty and needs to be replaced

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Expert:  Eric replied 7 months ago.

HI,

Ok, the codes dont actually tell us if the wheel speed sensors are bad or not. They tell the area of concern, in this case the speed sensor circuits.

The shop should test the speed sensors with a Mercedes STAR scan tool to see if they are bad. If so, replace them. If they test good, then the wiring harness has to be tested for short to ground or open circuit and repaired as needed. IF both the sensors and the wiring are good, then the ABS control module is faulty and needs to be replaced

Please remember to rate service using the rating page so that I may receive credit. Thanks

If for any reason, you can't rate my answer OKAY, GOOD, or EXCELLENT today.
Please reply and let me know why, so I can help more/better.
All follow up responses are FREE, after completing the required rating

Customer: replied 7 months ago.
The codes I mentioned have status of S. Does that mean the sensor has to be changed?
Customer: replied 7 months ago.
Am in the Philippines +639778278778
Expert:  Eric replied 7 months ago.

HI,

Sorry, I missed the S status. Yes, that means they need to be replaced.

I am in the USA and it is not cost effective for me to call you.

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