The ABS light has been on in my 2004 S430 4matic since June 2017. The local dealer had it for 6 months and concluded the drivers side rear wheel sensor is bad. They tried new sensors part # 2205400417 from MB and other vendors but none worked. They told me I need to find a used sensor from a 2004 S430 4matic and that should clear the ABS light. I have tried 2 used sensors that the sellers said came from 2004 S 430. I also replaced the ABS ESP module with a used one but that didn't clear the ABS light. The ODB II code is 0500 


Does this make sense? The new MB part number 2205400417 is not compatiable with my 2004 S 430 4matic?


The ABS sensor is very simple and aslo easy to replace. When they purchase it from the dealer they would have gotten the right sensor that was exactly for you car. 

To me it seems that the problem was not the sensor but it is a wireing issue. The wire to that sensor is damaged. 

Can you provide some more details on the code. Is that a P0500? What scanner was used and from which module?

I have a scanner that only shows 0500, the dealer has a much better one that indicates the drivers side rear sensor is defective. I don't have their code details.

The dealer and I have both used an ohm meter to check the wiring from sensor to module.

continuity sensor to module wiring harness = good

shorts to ground = none

shorts to +12 VDC = none

Do you know of any situatuion where the new MB part number 2205400417 is not compatiable with my 2004 S 430 4matic?


MB part number 2205400417 fits the following. Base and 4matic versions. 

  • 2000-2006 MERCEDES-BENZ CL500 Rear 
  • 2001-2004 MERCEDES-BENZ CL55 AMG Rear 
  • 2001-2002 MERCEDES-BENZ CL600 Rear 
  • 2006 MERCEDES-BENZ S350 Rear 
  • 2000-2006 MERCEDES-BENZ S430 Rear 
  • 2001-2006 MERCEDES-BENZ S500 Rear 
  • 2001-2006 MERCEDES-BENZ S55 AMG Rear 
  • 2001 MERCEDES-BENZ S600 Rear 

There is a chance the teeth on the rear axle are damaged or dirty. I would call the dealer and they can provide details on the code. 

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