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R-Class (W251) Produced 2006-2013: R320CDI, R350, R420CDI, R500

Replacing my Oil Cooler line with pic

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Old Feb 7, 2011 | 11:55 PM
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dewdaltz
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From: Garden State
02ML320/06R350
Replacing my Oil Cooler line with pic
The cooler line has a leak but not that bad,(see pic with red circle) the one from the transmission to oil cooler. Do I need to drain the oil before I could replace the whole line OR can I just loosen that bolt and put right back? Share your thoughts on these.
Attached Thumbnails Replacing my Oil Cooler line with pic-cooler-line.jpg  
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Old Feb 8, 2011 | 07:12 AM
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2005 C32 4Matic - That's Not A Typo! :D
Is it leaking from the fitting, the hose or the pipe?
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Old Feb 8, 2011 | 08:12 AM
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It will drain out when you replace it anyway. I would drain before you repair the hose to avoid a mess. You will need the replacement bass ring for the trans plug and new fluid.
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Old Feb 8, 2011 | 09:05 AM
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Originally Posted by rcompart
Is it leaking from the fitting, the hose or the pipe?
the leak is between the rubber thing and tube. see pic with red circle. Thanks for your input.
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Old Feb 8, 2011 | 09:07 AM
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Originally Posted by shobbs666
It will drain out when you replace it anyway. I would drain before you repair the hose to avoid a mess. You will need the replacement bass ring for the trans plug and new fluid.
I am sure I have to replace all the necessary O-ring and the likes all at once. what kind of oil is being use on this - transmission oil?
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Old Feb 8, 2011 | 10:06 AM
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Mobil/1 qt. synthetic automatic transmission fluid This is what I use.
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Old Feb 8, 2011 | 10:32 AM
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Originally Posted by shobbs666
thanks. one more thing how/where do you add the transmission fluid?
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Old Feb 8, 2011 | 11:07 AM
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Add it using the dip stick tube you will need a funnel that fits. Also the transmission will have to be around 100 deg. before you can top off.
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