SL/R231: ABC fluid top up procedure
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Joined: Aug 2021
Posts: 7
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2015 SL400
ABC fluid top up procedure
Hello all. I’ve searched everywhere and while I have seen a number of discussions on the ABC system for the R231 and am aware of the AGA flush tool for other ABC equipped vehicles - I cannot find if it is possible/how to add a little ABC fluid to the system through a fill plug, etc.
I do not want to do a full fluid flush yet - just add some (less than a quart?) to get me by until spring weather and I can do the full job. I’ve had a slow leak from the rear shock that was identified by the MB deal a couple years ago and now I guess enough has leaked out to get an ABC Malfunction (white not red) each time I start the car. I can also hear 2 distinct squeak/creek noises right after startup each time especially when it’s cold outside and the car has sat overnight.
This is my daily driver and I don’t want to damage anything and figured a fluid top-off would help. The car is a 2015 SL400 with 50k miles, all options except sport package (if that helps). Thank you in advance - I’ll record the job once complete and post here for future reference if anyone can provide some info.
FYI, I have access to a lift, proper tools etc and previously DIY’d an ABC tandem pump replacement on my 2005 SL500 (back in 2010) - what a nightmare! You think I would learn my lesson! Lol
I do not want to do a full fluid flush yet - just add some (less than a quart?) to get me by until spring weather and I can do the full job. I’ve had a slow leak from the rear shock that was identified by the MB deal a couple years ago and now I guess enough has leaked out to get an ABC Malfunction (white not red) each time I start the car. I can also hear 2 distinct squeak/creek noises right after startup each time especially when it’s cold outside and the car has sat overnight.
This is my daily driver and I don’t want to damage anything and figured a fluid top-off would help. The car is a 2015 SL400 with 50k miles, all options except sport package (if that helps). Thank you in advance - I’ll record the job once complete and post here for future reference if anyone can provide some info.
FYI, I have access to a lift, proper tools etc and previously DIY’d an ABC tandem pump replacement on my 2005 SL500 (back in 2010) - what a nightmare! You think I would learn my lesson! Lol
