SL-Class (R230) 2003 -- 2012: Discussion on the SL500, SL550, SL600

SL/R230: ABC Fluid-Change or Not

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Old Sep 17, 2012 | 08:14 AM
  #1  
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ABC Fluid-Change or Not

I have an 04 with 38,000 miles and the ABC fluid has never been changed. Should I flush the system and change it?
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Old Sep 17, 2012 | 08:44 AM
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Although an entire flush at 38k sounds too much to me, it certainly wouldn't hurt to do so. That way, you would be preventing ABC Pump and Valve issues that many of us have experienced.

In fact, the minimum maintenance would be a rodeo and filter change. I wouldn't dump all the oil yet, without checking the color. Fresh oil is greenish in color. Whereas old, contaminated oil is dark brownish/reddish in color, sometimes with a foul smell.

Last edited by egwu; Sep 19, 2012 at 09:44 AM.
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Old Sep 17, 2012 | 06:46 PM
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What is a rodeo change? I understand the filter.

Thanks
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Old Sep 18, 2012 | 11:13 AM
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Rodeo :

Originally Posted by Stoofpilot
What is a rodeo change? I understand the filter.

Thanks
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Old Sep 19, 2012 | 09:43 AM
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Thanks five337. Good video .

Basically the rodeo mode tests to see if the ABC suspension is working within its limits. It tests for pressure and suspension height, etc. In the process, it moves the fluid around the ABC suspension system and filters it through the ABC filter. That is why a filter change is STRONGLY recommended after a rodeo mode. In fact instead of a flush, Mercedes now recommends a rodeo and a new 3 micron filter that replaces the usual 10 micron filter.

Last edited by egwu; Sep 19, 2012 at 09:46 AM.
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Old Sep 19, 2012 | 05:38 PM
  #6  
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Is the rodeo mode done with special equipment or a special setting in the car?
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Old Sep 19, 2012 | 09:15 PM
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Rodeo is done through the Star Diagnostic System (SDS) Machine/Computer.
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Old Sep 19, 2012 | 10:48 PM
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I've got 10 liters of spare oem fluid for your exchange if you decide to do it... At a good price let me know.
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