Adaptive transmission reset
Thread Starter
Junior Member
Joined: May 2012
Posts: 38
Likes: 10
CLS63 AMG
Adaptive transmission reset
I'm confident that many members know this already, but I recently did a reset of the adaptive transmission. Wow what a difference it makes. I am positive that my granny style driving during the break-in did not help.
Anyway after the reset, I am enjoying the car much more. I had a dodge viper before so was used to > 500hp/tq+, but could not understand why the car would not kick down the gear box and stayed in 4th during open throttle. Now on the freeway, it will kick down to 3rd and accelerate much harder.
I did the research when someone mentioned their improved acceleration after their cls63 was sent in to its first service and the mechanic disconnected the main battery, which caused the adaptive transmission reset. I learned that the older way of flooring the gas pedal for 5 seconds with the key in the on position then turning the key to off and removing my foot of the gas, and waiting 2 minutes works to reset it.
All in all, I was very close to selling the car because I thought something was very wrong, but now I see what everyone is talking about. Car is amazing.
Anyway after the reset, I am enjoying the car much more. I had a dodge viper before so was used to > 500hp/tq+, but could not understand why the car would not kick down the gear box and stayed in 4th during open throttle. Now on the freeway, it will kick down to 3rd and accelerate much harder.
I did the research when someone mentioned their improved acceleration after their cls63 was sent in to its first service and the mechanic disconnected the main battery, which caused the adaptive transmission reset. I learned that the older way of flooring the gas pedal for 5 seconds with the key in the on position then turning the key to off and removing my foot of the gas, and waiting 2 minutes works to reset it.
All in all, I was very close to selling the car because I thought something was very wrong, but now I see what everyone is talking about. Car is amazing.
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2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
Thread Starter
Junior Member
Joined: May 2012
Posts: 38
Likes: 10
CLS63 AMG
Okay then I must be confused, sorry. I do have a W218 and felt a difference through the older way of resetting, but read a W218 member mention the reset through the battery. Now I have to try the battery disconnect just to be sure.
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Joined: Nov 2001
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
On the older models it was a key in the ingintion process that did the reset.
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2015 S 63 AMG 4Matic
What other things would you lose when disconnecting the battery (besides losing radio channel memory)?
Just curious because I just disconnected the battery on my MY12 ML63 to remove the ECU.
Thanks
Vince
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Joined: Nov 2001
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From: THE Orange County, California
2024 C8 Z06- 2025 BMW CS- 2022 Porsche 992 GTS
It depends on the car I would guess... Ive never done it intentionally and cant remember the last time I had a battery issue on one of my Benzes.
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Posts: 12,261
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From: THE Orange County, California
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From: Fla. Snowbird.
Porsche 911 Turbo S 2014! E63S 14, Audi S8 13, CLS63 12, E550 12, C63 09, all tuned
I just pulled my ECU out. Pulled the start stop button out, turn key on 1min. then off. Removed key.
Let set for 2 min. Remove ECU.
Replacement, connect ECU, place key in on position, let set for 2 min.
Start.
Let set for 2 min. Remove ECU.
Replacement, connect ECU, place key in on position, let set for 2 min.
Start.
