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2021 E450 Downshifting

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Old Feb 23, 2025 | 12:57 PM
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2021 E450 Downshifting

Late last year my wife bought a 2021 E450. She says that she experiences an unwanted, hard downshift when she decelerates or gently applies the brake? Have you experienced that? Is there any reason to be concerned? How can we stop that from happening?
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Old Feb 23, 2025 | 08:24 PM
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bone stock E55 AMG
moved to W213 forum...
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Old Feb 23, 2025 | 09:59 PM
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2019 E300
Originally Posted by Bill and Dana
Late last year my wife bought a 2021 E450. She says that she experiences an unwanted, hard downshift when she decelerates or gently applies the brake? Have you experienced that? Is there any reason to be concerned? How can we stop that from happening?
It could be the regenerative braking system of the mild hybrid system in your car causing the issue. In my opinion, most hybrids and EV with regenerative braking takes a while to get use to, driving habits and driving mode could also make braking systems nonlinear. I could talk to your dealer, maybe Mercedes has a software update for your issue. Good luck.
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Old Feb 24, 2025 | 08:49 AM
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Originally Posted by The G Man
It could be the regenerative braking system of the mild hybrid system in your car causing the issue. In my opinion, most hybrids and EV with regenerative braking takes a while to get use to, driving habits and driving mode could also make braking systems nonlinear. I could talk to your dealer, maybe Mercedes has a software update for your issue. Good luck.

This.

That said, I also recommend asking your dealership to perform a standstill adaptation.


​​​
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Old Feb 24, 2025 | 08:50 AM
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https://mbworld.org/forums/gle-class...ml#post9049988
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Old Feb 25, 2025 | 08:58 PM
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is she driving in sport or sport+? the sport selections in dynamic select has much more aggressive shifting points including down shifting to ensure you're car is always in the most responsive part of the power band.
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