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Need help with coolant gasket

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Old Dec 26, 2019 | 05:33 PM
  #1  
Greg420's Avatar
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From: Los Molinos CA
2003 c230 kompressor
Need help with coolant gasket

Hello everyone. I have a coolant leak coming from this piece that a coolant hose connects too on the back of the engine. It is an 03 c230 coupe m271 engine. I'm not sure of the part name so I don't know what gasket to order. As far as I can tell it is not the hose going into the heater core. It is the one coming out of the engine on the back of it on the drivers side. Not a bad leak but I would like to fix it before it gets worse and I'm sick of smelling coolant lol.

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Old Dec 26, 2019 | 06:10 PM
  #2  
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2005 C230K Sport Coupe
Wow, that was tricky.
Also, for future reference, a wider shot and/or being more specific (saying it was on the driver's side) would be more helpful, and therefore you'll more likely get help.

That's for the oil cooler.
There isn't a "gasket", there's an o-ring. It's likely that the thermo-plastic pipe is also bad.
After you remove the pipe, you must properly clean that area/hole, otherwise the o-ring won't seal. Use acetone and a small brass toothbrush" (Home Depot or Amazon sells them -
Amazon Amazon
).

Fwiw, to find the part, I looked at:
https://parts.mercedesbenzofdurham.c...an-18L-MT.html

Since I knew it was for the oil cooler, I searched for "oil cooler", and found the part.
https://parts.mercedesbenzofdurham.c...712001352.html

Fwiw, in general, I buy DIRECTLY FROM A DEALER WHEN EVER I CAN!
Then again, your time and effort may be worth nothing at all, and you have absolutely nothing better to do than wasting time and money by re-replacing junk or counterfeit parts.

For better pictures of the part:
https://www.fcpeuro.com/products/mer...des-2712001352
https://www.ecstuning.com/b-genuine-...pe/2712001352/






Good Luck!
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Old Dec 26, 2019 | 06:15 PM
  #3  
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2003 c230 kompressor
Thank you. I'll look closer but it seems what I have is just the plastic pipe coming out of the engine and going 90 degrees right into the hose but none of that other mounting spots like what u have pictured

Last edited by Greg420; Dec 26, 2019 at 06:18 PM.
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Old Dec 26, 2019 | 06:25 PM
  #4  
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2003 c230 kompressor
Well just went and felt around in there and looks like that is the part. Thank u for your help
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Old Dec 26, 2019 | 07:23 PM
  #5  
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From: New England! :-)
2005 C230K Sport Coupe
I'm glad that's the part.
Sorry that I missed that you did say Driver's side.

Good Luck!
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Old Dec 27, 2019 | 02:10 PM
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2003 C230K Coupe Orion Blue
This issue is common on the M271 engine.

M271 coolant leak at back of engine

3 pipes go bad as well as 1 nipple. See thread above for reference. Change them all out before the next one goes bad on you. Good luck.
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