SL/R231: ABC Switch




Can anyone confirm if my S Class MBC is functioning properly or perhaps my 2017 SL550 ABC is not operating properly? Perhaps both cars are working just fine but are programmed to operate the ABC (MBC) differently.




Can anyone confirm if my S Class MBC is functioning properly or perhaps my 2017 SL550 ABC is not operating properly? Perhaps both cars are working just fine but are programmed to operate the ABC (MBC) differently.




That second button raises the whole body a tiny bit so that you don’t scrape the bottom on railroad track crossings or steep, sudden inclines such as entering or leaving parking lots at the street. I use that button to raise my SL at a local automatic car wash so the bottom does not scrape on the rail that guides the car through the car wash.
I have also used the button at a tire dealership to enable them to get the hydraulic frame lift under the SL. Under normal driving 99% of the time you would ride with the button “off”.
Last edited by Utopia Texas; Nov 21, 2019 at 02:11 PM.
That second button raises the whole body a tiny bit so that you don’t scrape the bottom on railroad track crossings or steep, sudden inclines such as entering or leaving parking lots at the street. I use that button to raise my SL at a local automatic car wash so the bottom does not scrape on the rail that guides the car through the car wash.
I have also used the button at a tire dealership to enable them to get the hydraulic frame lift under the SL. Under normal driving 99% of the time you would ride with the button “off”.


