Shop Screwup.
When they were topping off my tranny fluid, they found out my tranny just would not engage. They ended up putting in too much tranny fluid and it overfilled into my engine oil.
The engine started running funny and they immediately shut it off. Then, they drained the engine and put in new engine oil, Mobil 1 5w-30. I believe they did 5 quarts?The car drives nice, now. Will I have trouble down the road because of the ATF making the engine run weird for a few seconds? They cover their work for 6months/6k miles. Is this enough time for a problem lead by this mishap to emerge?
Thanks!
When they were topping off my tranny fluid, they found out my tranny just would not engage. They ended up putting in too much tranny fluid and it overfilled into my engine oil.
The engine started running funny and they immediately shut it off. Then, they drained the engine and put in new engine oil, Mobil 1 5w-30. I believe they did 5 quarts?The car drives nice, now. Will I have trouble down the road because of the ATF making the engine run weird for a few seconds? They cover their work for 6months/6k miles. Is this enough time for a problem lead by this mishap to emerge?
Thanks!
The capacity of the sump in the C240 is well over 5 quarts.
The Mobil 1 5W-30 is NOT the correct oil for your car. It does not meet 229.5 standards. You should insist on Mobil 1 0W-40 Euro car formula because it does meet it.
They should have flushed the engine oil if it was contaminated with ATF and changed the filter. Again this would take much more than 5 quarts.
They should make damn sure the transmission fluid level is correct.
The last thing you need is another problem. Go back and insist they flush the oil out using the appropriate amounts and the correct oil. Ask to be witness to a transmission fluid check.
My indy shop would bend over backwards for me in the event they made a mistake.
When they were topping off my tranny fluid, they found out my tranny just would not engage. They ended up putting in too much tranny fluid and it overfilled into my engine oil.
The engine started running funny and they immediately shut it off. Then, they drained the engine and put in new engine oil, Mobil 1 5w-30. I believe they did 5 quarts?The car drives nice, now. Will I have trouble down the road because of the ATF making the engine run weird for a few seconds? They cover their work for 6months/6k miles. Is this enough time for a problem lead by this mishap to emerge?
Thanks!
A shop like that doesn't deserve to be in business.
I'm kidding..what I wrote above is just a joke...I do not promote any activities mentioned above...or do I?

NOW - please run by me how transmission fluid got into the engine sump??? Not by overfilling the tranny!!!! It would come out of the tranny breather.
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A shop like that doesn't deserve to be in business.
I'm kidding..what I wrote above is just a joke...I do not promote any activities mentioned above...or do I?


Just Kidding Karo, you are alright man. Cuz
The Best of Mercedes & AMG
For the tranny flush, they dropped the pan and changed the filter. Four quarts or so went in. Something wrong, here, too?
Trans fluid - 8.5 US qt (8.0 l)
On Owner's manual page 349. This is for 2004 Models.
Sorry don't know what year model your car. You didn't posted it in your sidebar.
Last edited by 04mbc230; Aug 2, 2010 at 11:16 PM.
They should flush the Enginee oil completely to remove any possible ATF fluid. It's hard to tell how much got in and how long. Even a sec of overflow can pump in a lot of ATF fluid that may stick on the side walls inside.
Full flush is needed to ensure no contamination.
As for the ATF, I am wondering how did it get into there? Isn't this two sepearte areas? How is over flowing ATF fluid ends up inside the Enginee? Please clear my understanding on this.
Last edited by 04mbc230; Aug 2, 2010 at 11:19 PM.
If that is the case, then that would be insane.
They put 5 qts of ATF in the Engine and turn it up. Possible engine damage. Oh well, better flush the engine to be sure or have them flush it and you watch. Since you are not sure what they did.
Hmmz.. I wonder if this would void the warranty. Other neglect and put in wrong fluid in engine?
Last edited by 04mbc230; Aug 3, 2010 at 12:27 AM.
The engine started running funny and they immediately shut it off. Then, they drained the engine and put in new engine oil, Mobil 1 5w-30. I believe they did 5 quarts?...!So they pour the ATF in the wrong tube. That must be it. Awwww.. ditto of what mleskvar said.
See second picture how close the oil dipstick tube and ATF tube is close by. If one doesn't know about Mercedes Engine, can easily be discourage to open ATF tube and went with the Oil Dipstick tube and thought that it is the ATF tube. Also standard doesn't comes with a dipstick, hence the more confusion that that might be the tube.
Last edited by 04mbc230; Aug 3, 2010 at 01:01 AM.
What do I do now? Go to the shop bright and early tomorrow and demand they do a full oil change with a filter replacement? What about the traces of ATF in the engine atm? The shop it 5-7 miles from my house!
That's a major f**k up.
The capacity of the sump in the C240 is well over 5 quarts.
The Mobil 1 5W-30 is NOT the correct oil for your car. It does not meet 229.5 standards. You should insist on Mobil 1 0W-40 Euro car formula because it does meet it.
They should have flushed the engine oil if it was contaminated with ATF and changed the filter. Again this would take much more than 5 quarts.
They should make damn sure the transmission fluid level is correct.
The last thing you need is another problem. Go back and insist they flush the oil out using the appropriate amounts and the correct oil. Ask to be witness to a transmission fluid check.
My indy shop would bend over backwards for me in the event they made a mistake.
and this --->
How many years will this wipe off of my already aging w203? Sheesh!









