(Another) Transmission Reset
Thread Starter
Joined: Nov 2016
Posts: 7,847
Likes: 3,498
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
(Another) Transmission Reset
This is not where you turn the ignition to the “on” position, hold your tongue a certain way, blah, blah, blah! This is about doing a tranny adaptation reset using your MB Star/SDS. The procedure is go to Control Units – Drive- Transmission – Control Unit Adaptations or Adaptation – Display and reset of adaptation data – Resetting of adaptation data (or however it shows up under Xentry Diagnostics or DAS).
I performed the procedure with my MB Star using Xentry (since I have a 2014 car) and can tell you that it is NOT the same as you’ve read about or watched on YouTube. I could tell that the controller had been totally cleared of any adaptations. Not only does the tranny shift quicker, it also downshifts noticeably when slowing and applying the brakes. It’s much more like how my wife’s G35 performs in Sport mode.
So, today I did the turn-on-the-key and count to 20 (or 10 or 100) process to see if it will smooth out the shifting at all. Eventually, I think the shifting would adapt more, but I want to see if a combination of steps gives me a more responsive, yet smooth, transmission.
I performed the procedure with my MB Star using Xentry (since I have a 2014 car) and can tell you that it is NOT the same as you’ve read about or watched on YouTube. I could tell that the controller had been totally cleared of any adaptations. Not only does the tranny shift quicker, it also downshifts noticeably when slowing and applying the brakes. It’s much more like how my wife’s G35 performs in Sport mode.
So, today I did the turn-on-the-key and count to 20 (or 10 or 100) process to see if it will smooth out the shifting at all. Eventually, I think the shifting would adapt more, but I want to see if a combination of steps gives me a more responsive, yet smooth, transmission.
Thread Starter
Joined: Nov 2016
Posts: 7,847
Likes: 3,498
From: Maryland
2015 SL400 (M276 Turbo), 2014 C350 Sport (M276 NA), 2004 SL500 (M113), 2004 Audi TT225 (BEA)
Well, it’s been five days and maybe 400 miles and a couple dozen starts/stops and the tranny has smoothed out while remaining much more responsive than before.
MBworld Guru
Joined: Dec 2009
Posts: 10,782
Likes: 1,011
NO LONGER ACTIVE
This is not where you turn the ignition to the “on” position, hold your tongue a certain way, blah, blah, blah! This is about doing a tranny adaptation reset using your MB Star/SDS. The procedure is go to Control Units – Drive- Transmission – Control Unit Adaptations or Adaptation – Display and reset of adaptation data – Resetting of adaptation data (or however it shows up under Xentry Diagnostics or DAS).
I performed the procedure with my MB Star using Xentry (since I have a 2014 car) and can tell you that it is NOT the same as you’ve read about or watched on YouTube. I could tell that the controller had been totally cleared of any adaptations. Not only does the tranny shift quicker, it also downshifts noticeably when slowing and applying the brakes. It’s much more like how my wife’s G35 performs in Sport mode.
So, today I did the turn-on-the-key and count to 20 (or 10 or 100) process to see if it will smooth out the shifting at all. Eventually, I think the shifting would adapt more, but I want to see if a combination of steps gives me a more responsive, yet smooth, transmission.
I performed the procedure with my MB Star using Xentry (since I have a 2014 car) and can tell you that it is NOT the same as you’ve read about or watched on YouTube. I could tell that the controller had been totally cleared of any adaptations. Not only does the tranny shift quicker, it also downshifts noticeably when slowing and applying the brakes. It’s much more like how my wife’s G35 performs in Sport mode.
So, today I did the turn-on-the-key and count to 20 (or 10 or 100) process to see if it will smooth out the shifting at all. Eventually, I think the shifting would adapt more, but I want to see if a combination of steps gives me a more responsive, yet smooth, transmission.
Yep, that ignition switch process does nothing to the transmission. It's actually a re-synchronization of the drive-by-wire accelerator pedal to the throttle body. It can make the car fell like it shifts differently because when these get out of sync, the engine will be at a different RPM based on the report of the pedal position to the TCU.
In addition to resetting the transmission adaptations in SDS, you can also teach new ones. This works in conjunction with the "driver adaptive" feature. Those customized shift points are used as the baseline as the transmission adapts to repeated driver inputs.
Junior Member
Joined: Feb 2019
Posts: 27
Likes: 6
From: Sakarya
W212 2015
This is not where you turn the ignition to the “on” position, hold your tongue a certain way, blah, blah, blah! This is about doing a tranny adaptation reset using your MB Star/SDS. The procedure is go to Control Units – Drive- Transmission – Control Unit Adaptations or Adaptation – Display and reset of adaptation data – Resetting of adaptation data (or however it shows up under Xentry Diagnostics or DAS).
I performed the procedure with my MB Star using Xentry (since I have a 2014 car) and can tell you that it is NOT the same as you’ve read about or watched on YouTube. I could tell that the controller had been totally cleared of any adaptations. Not only does the tranny shift quicker, it also downshifts noticeably when slowing and applying the brakes. It’s much more like how my wife’s G35 performs in Sport mode.
So, today I did the turn-on-the-key and count to 20 (or 10 or 100) process to see if it will smooth out the shifting at all. Eventually, I think the shifting would adapt more, but I want to see if a combination of steps gives me a more responsive, yet smooth, transmission.
I performed the procedure with my MB Star using Xentry (since I have a 2014 car) and can tell you that it is NOT the same as you’ve read about or watched on YouTube. I could tell that the controller had been totally cleared of any adaptations. Not only does the tranny shift quicker, it also downshifts noticeably when slowing and applying the brakes. It’s much more like how my wife’s G35 performs in Sport mode.
So, today I did the turn-on-the-key and count to 20 (or 10 or 100) process to see if it will smooth out the shifting at all. Eventually, I think the shifting would adapt more, but I want to see if a combination of steps gives me a more responsive, yet smooth, transmission.
Thanks for detailed information. But I would like to clarify that in Xentry there are two reset menu on vgs module; did you reset both values?
seen in the attached picture, I suppose the "Adaptation values of shift operations" should not be reset; on the xentry (right side) it says these values should only be reset after repair work (replacement of new transmission or rebuild/repair existing).
