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How often to change transmission fluid?

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How often to change transmission fluid?

 
Old 05-15-2019, 05:34 PM
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2014 C300
How often to change transmission fluid?

Does it need to be replaced or flushed? It is my understanding there is a difference.

Car is a 2014 C300.

Thanks
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Old 05-15-2019, 06:39 PM
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Mercedes w204 4matic sport
I recommend every 30-40k from new, that will keep the fluid pretty clean and keep the transmission in good shape. Never do a trans flush, they are known to ruin longevity.
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Old 05-15-2019, 07:35 PM
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2001 MB E430,1992 190E, 2009 C350, 2003 Porsche 911(sold),2014 Focus ST (sold)
Agree. Do not flush.
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Old 05-15-2019, 09:56 PM
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For your vehicle, Mercedes recommends every 70k. But, I recommend all my customers to keep the trans service interval at 40k miles.
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Old 05-16-2019, 09:20 AM
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2012 C300 4Matic
Originally Posted by MBENZTECH View Post
For your vehicle, Mercedes recommends every 70k. But, I recommend all my customers to keep the trans service interval at 40k miles.
Just curious, if Mercedes changed the recommendations from 40K to 70K starting in 2013, why do you recommend keeping it at 40K? I am have to believe Mercedes changed something for them to change the recommendation that much.
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Old 05-16-2019, 09:26 AM
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2014 C300
Originally Posted by Just204 View Post
I recommend every 30-40k from new, that will keep the fluid pretty clean and keep the transmission in good shape. Never do a trans flush, they are known to ruin longevity.
Spoke to my mechanic, he said they were NOT doing a flush, they were doing a full transmission service and that anyone offering to flush it was likely a scam. So, good to know. Thanks!

Originally Posted by MBENZTECH View Post
For your vehicle, Mercedes recommends every 70k. But, I recommend all my customers to keep the trans service interval at 40k miles.
I have something in the mid 30's at the moment. thanks

Last edited by Aimbit; 05-16-2019 at 10:44 AM.
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