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2016 C300 Transmission lurch when attempting to downshift

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Old Today | 04:36 PM
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2016 C300 w/ sport package
2016 C300 Transmission lurch when attempting to downshift

I've been noticing the last 5,000 miles or so sometimes when I give more throttle while moving when the transmission should downshift to a lower gear it will give this unsettling lurch almost like a harsh bang as it attempts to downshift and it doesn't even end up shifting into the lower gear like it should. I have about 62,000 miles and recently had the transmission fluid flushed at the dealer hoping that issue would be fixed but unfortunately it's still there. Its hard to re-create the perfect conditions to replicate the issue but it's very unsettling and has more worried my transmission is on its way out. Otherwise the normal shifting seems a bit smoother since the fluid change. Any ideas or recommendations on what to do?
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Old Today | 05:17 PM
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Originally Posted by Bmarcinczyk14
I've been noticing the last 5,000 miles or so sometimes when I give more throttle while moving when the transmission should downshift to a lower gear it will give this unsettling lurch almost like a harsh bang as it attempts to downshift and it doesn't even end up shifting into the lower gear like it should. I have about 62,000 miles and recently had the transmission fluid flushed at the dealer hoping that issue would be fixed but unfortunately it's still there. Its hard to re-create the perfect conditions to replicate the issue but it's very unsettling and has more worried my transmission is on its way out. Otherwise the normal shifting seems a bit smoother since the fluid change. Any ideas or recommendations on what to do?
Might want to try transmission learning reset.
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Old Today | 06:24 PM
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2016 C300 w/ sport package
Originally Posted by W205C43PFL
Might want to try transmission learning reset.
Do you know if that's something thats done during a transmission fluid flush?
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Old Today | 07:35 PM
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Originally Posted by Bmarcinczyk14
Do you know if that's something thats done during a transmission fluid flush?
After, you could do it now as long as you have XENTRY or get your dealership to reset it for you.
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Old Today | 07:37 PM
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2016 C300 w/ sport package
Originally Posted by W205C43PFL
After, you could do it now as long as you have XENTRY or get your dealership to reset it for you.
If it's something the dealership does after the fluid flush then that means it was recently done and didn't fix this problem.
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Old Today | 07:38 PM
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Originally Posted by Bmarcinczyk14
If it's something the dealership does after the fluid flush then that means it was recently done and didn't fix this problem.
No they don't reset it as part of the procedure at least not what I remembered from WIS.
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