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

SL/R230: changing abc fluids

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Old Oct 29, 2018 | 10:21 AM
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mike opalisky's Avatar
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2007 sl 55 amg 2007 cls
changing abc fluids

had them changed about 4000 miles ago and I drive the car less than 2000 miles a year. So every fall i drain the tank and fill it with new fluid. good idea or not thanks
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Old Oct 29, 2018 | 11:46 AM
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From: Gluckstadt, MS
2003 R230
I think With ABC it is more of a mileage need than time.
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Old Oct 29, 2018 | 12:54 PM
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But you also need to factor in time as the rubber seals the diaphragms in the accumulators and dampeners deteriorate with age. Also, with hydraulic systems, lack of use can be worse than overuse.
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Old Oct 30, 2018 | 12:01 PM
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2007 sl 55 amg 2007 cls
I agree with the mileage but I was concerned that they couldn't get all the old fluid out
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Old Oct 30, 2018 | 11:27 PM
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We've had this discussion before. The consensus seems to be that what little fluid remains in a few lines and in the struts will quickly be mixed with new fluid and it's not an issue.
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Old Dec 13, 2018 | 08:42 PM
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I think it's a good idea. I've changed my ABC fluid in the resevoir twice in four years. This year I intend to change the filter along with the fluid.
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Old Dec 13, 2018 | 09:54 PM
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'09 S600, (2) R129 300SLs, '03 SL500, '03 SL55
Originally Posted by cjennjr
I've changed my ABC fluid in the resevoir twice in four years. This year I intend to change the filter along with the fluid.
I'll speculate that quick and effortless procedure is entirely adequate, and it's what I'll be doing henceforth with my 2003 SL500.

If I were to buy a car which still had its original fluid, for one time I would either perform a thorough flush, or I would change the reservoir several times over the course of a week or so.
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