Thanks Bob. In your last statement, you said to replace the seals, use chevron gas. Does that mean that I just have to use chevron gas and all will be well? And if that is the case, is there some additive that maybe I can use also? Thanks in advance.

Like I said..you want to know what's up, the next test is Leak Down test.
It is a 5 min, simple test that tells you where the leak is...simple.


And as far as rings on 113 engine with that milage go, do a search and read up on what some of the Forum's Benz Techs [ who work on these all day. every day] have to say about 112/113 engines and ring complaints... .. Common , even under 100K. .
Here's a credible one........


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ILUVMILS
MB Master Guild Technician 2007
MB Shop Foreman
MB Master Technician
Same dealership for 20 years!

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A Dalton

Ok, a leak down test. I'll have it done withinnext 2 days and post the details as soon as I do. Thank you. Boy, I hope it's not the rings, sounds expensive...

Yes , that would be a big ticket item..
As all the post have stressed, you have low comp and the cause can be from any/all the mentioned possible failures..
And a correct diagnosis can not be done w/o further testing...you can put any kind of gas in there you want, but you want to know the cause of the problem.
My mention of a possible ring condition is simply mentioned as a SUSPECT b/c of that known , common problem on THAT engine, and your complaint of low comp and oil consumption fits that possible.... it is NOT a diagnosis..it is something that shoud be checked out with a further test in order to make a correct diagnosis.
Hopefully it is not the cause of your condition, but don't let anyone tell you that 113 engines don't have ring problems at that milage ..cuz they do.......................

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A Dalton

oooooooooookay. do you recommend the dealer or any competant shop?

Who knows today???

I would expect a Dealer to be well aware of problems like that, but some just deny or say they never had any problems ...Don't know why, but they do.

There was actually a classs action suit on those b/c so many needed rings, but the outcome was the owners were not using Factory rec. oil..
That was the first thing I noticed on you post, so you seem to have taken proper and correct care...
Your preference should be with someone who knows Benz,,, as far as a leak-down test , any decent mechanic knows how to do that....
Again , that is the FIRST test I would want to see before making any diagnosis...
Even if you just go to a mechanic for the test alone and the results...that will get you on your way...I would not be as foolish as to make a low compression diagnosis w/o more info than a PSI reading and a guess.

Do a search on this Forum and you will see all the related threads on that engine with your exact condition. And then when you talk to a guy about checking it, you will know if he is not aware or hip, and can then decide if you want to use him.
Just ask if they can do a leak down test...if the guys says "A What? "... turn and run... Any good guy is simply going to say "Sure." .Then you explain your condition and the cylinder you seem to be having a problem with low compression and oil evidence... and that is all he will need to give you a diagnosis that we can not.

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A Dalton

ooookay. Do you recommend the dealer or any competant shop?

Sorry wrong response. But Thanks soooooooo much! I will have it done within next couple of days..

THis is a possiblity, but I would go the extra mile and have a leak down test get to the bottom of your problem..then you will truly know what is causing your low compression..hopefully the news will be good.
Bob