Question about Removing Engine Sludge - Mercedes-Benz Forum

 
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post #1 of 9 (permalink) Old 06-13-2009, 08:42 AM Thread Starter
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Exclamation Question about Removing Engine Sludge

I have sludge in my engine and went to a mechanic that was recommended for an oil change and to help clean this engine out. I bought an engine cleaner that was recommended for Mercedes. When I went to the mechanic and told him about using the engine cleaner he said he would not put it in.

He told me that yes, it will clean the top of the engine, however, the sludge will go to the bottom of the oil pan, get into the strainer and have a good chance of clogging the oil pump.

My question is, has anyone used an engine cleaner to remove sludge and what is the reality of the problem the mechanic mentiond really occuring?

Thanks for your help

Carolina560Benz
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post #2 of 9 (permalink) Old 06-13-2009, 08:55 AM
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What engine cleaner is recommended for Mercedes?

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post #3 of 9 (permalink) Old 06-13-2009, 10:58 PM
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I used Auto-rx.com. It works very slow but quite effective at cleaning out sludge. Dont use any chemicals that will break things off in chunks as it will give your engine problems asap. Autorx dissolves the sludge and carbon build up around the ring packs and brings it over to the oil filter and traps it there. I was a not a believer at first being $26.00 for one bottle. After driving with it for 3000miles then doing an oil change. I noticed that my car wasnt as sluggish anymore. The varnish and residue on my oil cap also softened to the point where it just wiped off. Before that I tried scraping and it wouldnt even get it off as it was so hard.

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post #4 of 9 (permalink) Old 06-15-2009, 02:12 PM
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Risilone has always worked fine for me. Or, you could use a quart of Marvel Mystery oil, the MB tech's best friend and for air tools as well.
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post #5 of 9 (permalink) Old 06-15-2009, 05:30 PM
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Quote:
Originally Posted by carolina560benz View Post
I have sludge in my engine and went to a mechanic that was recommended for an oil change and to help clean this engine out. I bought an engine cleaner that was recommended for Mercedes. When I went to the mechanic and told him about using the engine cleaner he said he would not put it in.

He told me that yes, it will clean the top of the engine, however, the sludge will go to the bottom of the oil pan, get into the strainer and have a good chance of clogging the oil pump.

My question is, has anyone used an engine cleaner to remove sludge and what is the reality of the problem the mechanic mentiond really occuring?

Thanks for your help

Carolina560Benz

How do you know when you have engine sludge? It's something I've never had an issue w/ before.
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post #6 of 9 (permalink) Old 06-15-2009, 05:48 PM
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The last time I posted about preventing sludge as a matter of long term routine, I almost was thrown off the forum. Now, here comes Carolina with the problem (e pluribus unum) and is made to feel like an UFO.

Dirt happens, not only physiologically but in every order of life. Being too lazy to drop the pan to clean the sump every once in several blue moons is neither an excuse to ignore the fact, nor to put down the victims of such problem.

After having said my thing, IMHO I would not clean the engine before taking all the garbage out. The oil piston ring will thank me for that, though the mechanic will make less money now than later when the engine has to be opened.

Chiao. JV
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post #7 of 9 (permalink) Old 06-15-2009, 10:05 PM
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Originally Posted by JoeVal View Post
The last time I posted about preventing sludge as a matter of long term routine, I almost was thrown off the forum. Now, here comes Carolina with the problem (e pluribus unum) and is made to feel like an UFO.

Dirt happens, not only physiologically but in every order of life. Being too lazy to drop the pan to clean the sump every once in several blue moons is neither an excuse to ignore the fact, nor to put down the victims of such problem.

After having said my thing, IMHO I would not clean the engine before taking all the garbage out. The oil piston ring will thank me for that, though the mechanic will make less money now than later when the engine has to be opened.

Chiao. JV

I guess I don't drive or keep my cars long enough, as I've never dropped a pan to clean out sludge, but I've never had a sludge problem either. Or I did and it had no symptoms, because I've never dealt had to deal with it.
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post #8 of 9 (permalink) Old 06-15-2009, 10:45 PM
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Originally Posted by Boschk View Post
I guess I don't drive or keep my cars long enough, as I've never dropped a pan to clean out sludge, but I've never had a sludge problem either. Or I did and it had no symptoms, because I've never dealt had to deal with it.
Sludge is from dino oil times. This is why you would have to be careful when changing from dino oil on a "historic car" to modern synthetic, quite like the concerns the original poster had.
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post #9 of 9 (permalink) Old 06-15-2009, 11:09 PM
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Then I'm good.. Mobile 1 synthetic in my cars and Motorex synthetic in my motorcycles... The oldest car I've ever had is 10 years old, so I''m not much of a historic car guy I quess.
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