Anyone have or try this Weistec TCU Tune?
Junior Member
Joined: Jan 2023
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From: Texas
2019 GLC63 2021 GLE53 2021 GLB35 2008 E350 2001 SL500
Hello,
I have used the weistec tcu tune and I am very happy with the results, however I have it on my GLC63 which has the 725.9 but I would only imagine it would be a bigger help for the older 7 speed since it was slightly slower in lower speed shifting. If you want some more info about call weistec and ask for Ricky, he helped me out and put the tuners on the phone to explain if I needed it and how it would affect the trans.
Hope this helps!
I have used the weistec tcu tune and I am very happy with the results, however I have it on my GLC63 which has the 725.9 but I would only imagine it would be a bigger help for the older 7 speed since it was slightly slower in lower speed shifting. If you want some more info about call weistec and ask for Ricky, he helped me out and put the tuners on the phone to explain if I needed it and how it would affect the trans.
Hope this helps!
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2007 Mercedes E63 AMG
FYI, TCU tunes do not change steering paddle to shift speeds.
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12 C63BS Magno Alanite Grey, 25 X5 Msport, 08 BMW E93, Ducati Hyper 698
Ya this, my trans shifts plenty fast and isn't worth 2 grand to me to speed it up a little - someone needs to figure out how to fix it so the paddle shifters actually do what you want them to when you tell them to, that would be worth some money to me to fix.
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2010 C63 AMG
I still see it as available
https://www.weistec.com/7-speed-tcu-tune.html
https://www.weistec.com/7-speed-tcu-tune.html
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2012 C63;1971 280SE 3.5(Sold);2023 EQS 450 SUV 4 Matic (Wife's)
I still see it as available
https://www.weistec.com/7-speed-tcu-tune.html
https://www.weistec.com/7-speed-tcu-tune.html
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'10 C63 AMG
It really is a shame because using it in Sport Mode shows that the trans can be fast and aggressive, so the delay really is the issue.
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AMG C63
Given how old this platform is, I’ve pretty much abandoned all hope that someone will be able to decrease the delay between paddle input and gear shift.
It really is a shame because using it in Sport Mode shows that the trans can be fast and aggressive, so the delay really is the issue.
It really is a shame because using it in Sport Mode shows that the trans can be fast and aggressive, so the delay really is the issue.
Cant imagine you'd have the worst time in the world doing it but I've never directly looked into it myself.
You could also just sell yours and buy a '13/14 but idk what kind of situation you're in.
Last edited by GarlicBread; Feb 6, 2023 at 05:20 PM. Reason: Vids
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AMG C63
Why the DCT appears to shift "slower" than the MCT cars when paddling even though the gear is already preloaded in the DCT is beyond my smooth brain comprehension.
Its not staggeringly different but its at least noticeable enough to spot and seems counter intuitive especially climbing through the gears.
Its not staggeringly different but its at least noticeable enough to spot and seems counter intuitive especially climbing through the gears.
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From: Texas
10 C six trizzle
Why the DCT appears to shift "slower" than the MCT cars when paddling even though the gear is already preloaded in the DCT is beyond my smooth brain comprehension.
Its not staggeringly different but its at least noticeable enough to spot and seems counter intuitive especially climbing through the gears.
Its not staggeringly different but its at least noticeable enough to spot and seems counter intuitive especially climbing through the gears.
Weistec valvebody upgrade is trash. They cut the screens off of solenoids to allow slightly more flow. Not impressed.
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'09 C63 AMG
Only thing I don't like about this transmission is that after a pull on the interstate it stays in the low gear for way too long. If my throttle position has been at 1/4 for a whole 20 seconds It's safe to say I'm no longer trying to go fast right now.
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AMG C63
The gear change may happen quicker but the entire process itself with the DCT is slower than the MCT which is counter intuitive to the entire idea of what a DCT is from the staggering upshifts.
MCT's being inherently stronger from a design standpoint and easier/cheaper to manufacture not withstanding, you would expect the DCT to perform quicker overall since the foundation of how it operates is fundamentally faster than a straight-line auto but again...it doesnt.
MCT's being inherently stronger from a design standpoint and easier/cheaper to manufacture not withstanding, you would expect the DCT to perform quicker overall since the foundation of how it operates is fundamentally faster than a straight-line auto but again...it doesnt.
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From: NJ
2009 SL63 AMG
I've been happy with the 100ms shift speed of the MCT. Comparing it to the DCT (we had an AMG GT-S as a 3 season car for a few years) the shift performance was comparable.
For any MCT car, you can manually reprogram / tailor the shift points using MB STAR. Cleans things up nicely for both regular and aggressive driving.
For any MCT car, you can manually reprogram / tailor the shift points using MB STAR. Cleans things up nicely for both regular and aggressive driving.
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2010 C63 AMG
I think people misunderstand it's not the actual shift sowed that's slow... the shift speed is fairly fast... the speed when you request a shift while manually shifting and the shift happening is delayed.
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AMG C63
The fundamental design of the DCT alludes to an idea that doesn't present in reality which is not a result of the DCT clearly but what else the issue is being caused by is beyond my feeble intelligence but its curiously annoying enough to entertain considering that its not just Mercedes DCT's that have this issue, it's across several different manufacturers besides the DSG which doesn't have the same problem.
Last edited by GarlicBread; Feb 7, 2023 at 01:33 PM.
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2010 C63 AMG
Yeah I have no idea, if someone could figure it out they could make some $$ though for sure it's one of the most annoying parts of the car imo. It's just not that annoying to ruin the experience or warrant throwing big $$ at an alternative
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From: Texas
10 C six trizzle
just hold the right paddle down or tap it a few times and it will go into high gear much quicker, even in comfort, sport or sport + this will work.
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2007 Mercedes E63 AMG
with shelf tunes this gets inflated. with our tunes, since the engine is making more power, the transmission will actually upshift even sooner than the factory tune when driving normally. a few of our customers stated they wish this didn't occur, but with our tune being more accurate, the TCU will adapt to driver behavior faster than even the factory tune. If you begin driving more aggressively, within seconds the TCU. Will see that you're driving more aggressively thus changing its shift behavior to shift harder and faster and to upshift at higher rpm's when not at full throttle as to favor its internal performance drive mappings.
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'09 C63 AMG
with shelf tunes this gets inflated. with our tunes, since the engine is making more power, the transmission will actually upshift even sooner than the factory tune when driving normally. a few of our customers stated they wish this didn't occur, but with our tune being more accurate, the TCU will adapt to driver behavior faster than even the factory tune. If you begin driving more aggressively, within seconds the TCU. Will see that you're driving more aggressively thus changing its shift behavior to shift harder and faster and to upshift at higher rpm's when not at full throttle as to favor its internal performance drive mappings.
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Joined: Sep 2014
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From: Worldwide
2007 Mercedes E63 AMG
It's great when driving on twisty roads in the mountains. It's never in the wrong gear up there, so for that reason I wouldn't actually change it unless it somehow knew what I was doing. I would think that it would need to "see" and interpret steering input and/or lateral acceleration to do that. Probably not something this old car is capable of.
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From: Texas
10 C six trizzle
MB star does not have this capability or anything close to it. You have resetting gear shift adaptations / performing them and same for the mct. None of these functions manually program anything. Even without doing them they will adapt/learn to what they need to. Even if you enter the block data manually they will move into correct spec.
