SL55/63/65/R230 AMG: ABC system maintenance - great article


No picture is necessary. Starting at the ABC reservoir, I installed ~2" of a 1/2" reinforced rubber hose using the OE clamp (you could cut off ~2" of the OE hose, but it's going to be a real tight fit, and I wanted something that would allow easy removal of the Magnefilter if/when I wanted to replace it). Then, I slipped a 1/2" Norma clamp on the hose, and inserted the 'out' connection of the Magnefilter and tightened up both hose clamps.
Then, I marked the OE hose coming up the front of the engine bay where it would fit best on the inlet side. Cut the OE hose there, and slipped on a second Norma clamp, inserted the inlet nipple into the hose (it's gonna' be tight) until I got it nearly to the enlarged filter part. Tightened both Norma clamps and checked the fluid level - it was at correct level. I checked it again after a few minutes of engine running, and the level was still OK (engine 'aus' in both cases - for at least 15-20 minutes).
Regular hose clamps would probably be OK, but I like the Norma type, as they - like the OE clamps do not have any open 'slots' to cut into the rubber.
PS: Even though you asked twice, i'm only posting one response.
www.magnomfilters.com


I'll pull and replace it after about 4K miles or so (probably 2 years) and cut it up to see if it's trapped any particles.


The Best of Mercedes & AMG


https://www.ebay.com/itm/13564363936...Bk9SR5D5l9CvZg
Good luck in your future endeavors (this piece of technology is being provided to you by an 88 year old man!)


Gary


Fluid was black (hard to believe). It took about 20 mins and 7 liters before it turned a nice clear, green.
The whole process was pretty easy.
Last edited by Ingenere; Nov 7, 2025 at 12:49 AM.





