C32 AMG, C55 AMG (W203) 2001 - 2007

What are the risks of doing a full flush on a 722.6 tranny with 90K miles?

Old Jan 12, 2018 | 12:59 PM
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What are the risks of doing a full flush on a 722.6 tranny with 90K miles?

I have read that doing a full flush on a high mileage (90K miles) tranny could damage it because of the new fluid (fluid shock). I have a C32 contaminated with Glycol and I was wondering whether I should do a complete flush or Is it better to only drop the pan and then do it again after like a year?

Last edited by Elideli; Jan 12, 2018 at 01:10 PM.
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Old Jan 12, 2018 | 02:55 PM
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I have heard the same thing but dont know how true it is. I tell you what though you might as well try it because you are already f'ed with glycol in you trans.
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Old Jan 12, 2018 | 03:18 PM
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Originally Posted by insame1
I have heard the same thing but dont know how true it is. I tell you what though you might as well try it because you are already f'ed with glycol in you trans.
That's what I thought as well, I'm just gonna flush the hell out of it! The good thing is it's a transmission that has been serviced in the past, last service was done in 2016 with 7 liters of fluid, filter, pan gaskets and bolts.

Last edited by Elideli; Jan 12, 2018 at 04:11 PM.
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Old Jan 12, 2018 | 08:44 PM
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I wouldn't hesitate to do it. I don't subscribe to the old adage of the fluid it too old to change.
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