SLS transmission in C63
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2012 C63 AMG
No the transmission is built into the rear diff of the SLS like the ferrari 458. The next gen C63 better have a DCT like the SLS or I am jumping ship, tired of subpar transmission on this car. I hold out hope seeing how the CLA AMG has a dual clutch.
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2010 C63
Strap that life preserver on. Confirmed on last night's PL chat session that the C63 and E63 will not get DCT. They are too heavy.
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From: Naperville, IL/Chicago
2008 CLK63 Black Series 2012 C63 Black Series 2014 SLS Black Series
The MCT in my C BS is a great transmission, I am very happy with it....until I drove my SLS BS and felt that thing shift. 
FYI the MCT can hold more power than the DCT, my supercharged C BS makes more power than my supercharged SLS BS for the simple fact that the DCT can't take any more abuse....just saying.
FYI the MCT can hold more power than the DCT, my supercharged C BS makes more power than my supercharged SLS BS for the simple fact that the DCT can't take any more abuse....just saying.
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2012 C63 AMG
The MCT in my C BS is a great transmission, I am very happy with it....until I drove my SLS BS and felt that thing shift.
FYI the MCT can hold more power than the DCT, my supercharged C BS makes more power than my supercharged SLS BS for the simple fact that the DCT can't take any more abuse....just saying.
FYI the MCT can hold more power than the DCT, my supercharged C BS makes more power than my supercharged SLS BS for the simple fact that the DCT can't take any more abuse....just saying.
It being too heavy is a load of crap.
Honestly I am thinking of trying an audi out they make a twin turbo V8 with DCT in the S6 and and RS7 both of which with a tune make 550hp 550lb tq+ can't recall the exact number but that with DCT and AWD. I just view DCT plus turbo cars as a must, the DCT can make up for quite a bit of less power by its faster shift times. Plus when you floor a DCT it grabs a lower gear a heck of a lot faster, again the porsche 991 made me cry.
I just can't deal with the the MCT anymore, its really a disappointment when you know what else is on the market, as I told them at the AMG event MCT is 10 year old E46 M3 technology with a minor upgrade.
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C63 AMG
It seems people like to b*tch about this topic in theory (what’s on paper) vs. actual practicality - because in actual practice the 7-Speedshift MTC is a great transmission for the C63. This isn’t an F1 race car folks!!!
Are you REALLY missing out on... what... a 1 millisecond faster shift that a DCT gives? I mean really? A DCT has an ever so slightly snappier feel to it, but any real measurable advantage the DCT yields would only be seen on the track. For the streets, the 7 speedshift is IMO just perfect.
And yes, I drove an M3 before buying my C63 and the DCT was okay, nice… sure. But it wasn’t this night and day difference. It had a very, very slightly snappier feel to it. Paddels may have responded 1/100ths of a second faster. That’s all. So the F what?
I’ll take all the other benefits the C63 hasover the M3’s DCT anyday of the week.
Are you REALLY missing out on... what... a 1 millisecond faster shift that a DCT gives? I mean really? A DCT has an ever so slightly snappier feel to it, but any real measurable advantage the DCT yields would only be seen on the track. For the streets, the 7 speedshift is IMO just perfect.
And yes, I drove an M3 before buying my C63 and the DCT was okay, nice… sure. But it wasn’t this night and day difference. It had a very, very slightly snappier feel to it. Paddels may have responded 1/100ths of a second faster. That’s all. So the F what?
I’ll take all the other benefits the C63 hasover the M3’s DCT anyday of the week.
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CLK63 Black Series
Yea I drove a porsche and M3 and audi with a dual clutch… Made me cry. If porsche can put a DCT in a 911 turbo with 550+ HP and Nissan can do it in the GTR I don't see why benz can't get one for the C.
It being too heavy is a load of crap.
Honestly I am thinking of trying an audi out they make a twin turbo V8 with DCT in the S6 and and RS7 both of which with a tune make 550hp 550lb tq+ can't recall the exact number but that with DCT and AWD. I just view DCT plus turbo cars as a must, the DCT can make up for quite a bit of less power by its faster shift times. Plus when you floor a DCT it grabs a lower gear a heck of a lot faster, again the porsche 991 made me cry.
I just can't deal with the the MCT anymore, its really a disappointment when you know what else is on the market, as I told them at the AMG event MCT is 10 year old E46 M3 technology with a minor upgrade.
It being too heavy is a load of crap.
Honestly I am thinking of trying an audi out they make a twin turbo V8 with DCT in the S6 and and RS7 both of which with a tune make 550hp 550lb tq+ can't recall the exact number but that with DCT and AWD. I just view DCT plus turbo cars as a must, the DCT can make up for quite a bit of less power by its faster shift times. Plus when you floor a DCT it grabs a lower gear a heck of a lot faster, again the porsche 991 made me cry.
I just can't deal with the the MCT anymore, its really a disappointment when you know what else is on the market, as I told them at the AMG event MCT is 10 year old E46 M3 technology with a minor upgrade.
DCT's are a little heavier than standard manual transmissions, but not any heavier than MBZ MCT automatic. MB uses it for a few reasons … they like everything "in house" … compared to BMW, which has it's DCT's made by Getrag. It's true a DCT can't handle as much torque as an MCT … it's also more complex to build and therefor more expensive to produce.
BTW, I owned an E46 M3 and an E63 M6 both with SMG … it wasn't for everyone, but I loved that transmission … shifts were brutal at 8000
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CLK63 Black Series
It seems people like to b*tch about this topic in theory (what’s on paper) vs. actual practicality - because in actual practice the 7-Speedshift MTC is a great transmission for the C63. This isn’t an F1 race car folks!!!
AAre you REALLY missing out on... what... a 1 millisecond faster shift that a DCT gives? I mean really? DCT has an ever so slightly snappier feel to it, but any real measurable advantage the DCT yields would only be seen on the track. For the streets, the 7 speedshift is IMO just perfect.
And yes, I drove an M3 before buying my C63 and the DCT was okay, nice… sure. But it wasn’t this night and day difference. It had a very, very slightly snappier feel to it. Paddels may have responded 1/100ths of a second faster. That’s all. So the F what? I’ll take all the other benefits the C63 hasover the M3’s DCT anyday of the week.
AAre you REALLY missing out on... what... a 1 millisecond faster shift that a DCT gives? I mean really? DCT has an ever so slightly snappier feel to it, but any real measurable advantage the DCT yields would only be seen on the track. For the streets, the 7 speedshift is IMO just perfect.
And yes, I drove an M3 before buying my C63 and the DCT was okay, nice… sure. But it wasn’t this night and day difference. It had a very, very slightly snappier feel to it. Paddels may have responded 1/100ths of a second faster. That’s all. So the F what?
I’ll take all the other benefits the C63 hasover the M3’s DCT anyday of the week.
… either you're emotional towards your MBZ, which I can understand (btw, I currently own one and had a few over the years), or you don't know how a DCT really works. To answer your question, it is measurable on the street in daily driving, not just on a race track. Like I already mentioned in my previous post, there is no torque interruption between shifts. This is what truly differentiates it from any other transmission. This is achieved by using 2 sub drives … one for even gears, one for odd gears coupled to the engine with 2 clutches. This is what makes it "seamless".
It's all about how efficient the power is "transmitted" to the ground.
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C63 AMG
The torque lag between shifts is largely due to the ECU tune (torque management). MBZ, and the same with other OEM tunes have this in place to preserve the transmission.
Revise the tune and strip the torque management out, make revisions to the valve body and you'll make gear shifts feel much faster & snappy. When I was heavy into drag racing my 700rwhp SRT8 (which used a Mercedes NAG1 transmission), you could pick up .2 to .3 tenths just by a valve body revisions (raised shift pressure) and stripping the torque management via the ECU. Gear shifts were fast and hard hitting... zero softness during the shift.
Now I don't doubt a DCT is better - I just don't feel the revised 2012+ Speedshift MTC is the "slush box" everyone is making it out to be.
Revise the tune and strip the torque management out, make revisions to the valve body and you'll make gear shifts feel much faster & snappy. When I was heavy into drag racing my 700rwhp SRT8 (which used a Mercedes NAG1 transmission), you could pick up .2 to .3 tenths just by a valve body revisions (raised shift pressure) and stripping the torque management via the ECU. Gear shifts were fast and hard hitting... zero softness during the shift.
Now I don't doubt a DCT is better - I just don't feel the revised 2012+ Speedshift MTC is the "slush box" everyone is making it out to be.
Last edited by mdgrwl; Nov 14, 2013 at 06:26 PM.
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2012 C63 BS 2012 SLK 350 2014 CLA 45
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C63 BS, GLA45
I just hope that if the new C55 uses the MCT, it takes the programming from the BS, because it truly is a great gearbox that's damn close to a DCT in shift response. Nothing beats a dual clutch though, I still miss my old GTI DSG's gearbox, it was perfect, street or track, and slightly better than the CLA45's.
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From: Texas
10 C six trizzle
your fogetting the sacrifices that have to be made for a dct. It's just not that great in a normal driving car which is where 99% of your driving is. the weight being refered to is the car's weight not the transmissions. Which i've never heard but id imagine a dct in a heavier car having limitations just like the mct does. Anyone can tell you parking lots in an mct or dct are not strong points. Btw all those gear boxes mentioned above have major reliability issues , benz on the other hand not so much. who knows maybe the new c will get one. No one really knows for sure
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From: NYC
2015 E63S AMG & 2013 GLK350
Originally Posted by SMP
Like I already mentioned in my previous post, there is no torque interruption between shifts. This is what truly differentiates it from any other transmission.
Oh and I love the MCT, DCT might be instant but the 100 millisecond shift pops are so entertaining especially with headers
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CLK63 Black Series
I'm deciding to either get a 991 GT3 or a 991 TT … however, my dilemma is both come in a PDK … Porsche spend all that money on developing a DCT when the old MBZ supplied slush box they used for sooooooo many years did the trick
… who knew, you're smarter than their engineers!
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From: NYC
2015 E63S AMG & 2013 GLK350
lol ok please explain - all I know is there are more differences between a DCT and all other transmissions than just no interruption of power. The TH400 in my GTA and the 4L60e in my WS6 both change gears with no power interruption. You can say that one of the things that differentiates a DCT from conventional manual transmissions (aside from sequential/dog tooth type Liberty/Jerico/G-Force) is that there is no power interruption between shifts. But that's only part of the equation.
Oh and I agree MB autos suck but that doesn't mean I can't enjoy my MCT
Oh and I agree MB autos suck but that doesn't mean I can't enjoy my MCT
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Porcelain Bus
Yea I drove a porsche and M3 and audi with a dual clutch… Made me cry. If porsche can put a DCT in a 911 turbo with 550+ HP and Nissan can do it in the GTR I don't see why benz can't get one for the C.
It being too heavy is a load of crap.
Honestly I am thinking of trying an audi out they make a twin turbo V8 with DCT in the S6 and and RS7 both of which with a tune make 550hp 550lb tq+ can't recall the exact number but that with DCT and AWD. I just view DCT plus turbo cars as a must, the DCT can make up for quite a bit of less power by its faster shift times. Plus when you floor a DCT it grabs a lower gear a heck of a lot faster, again the porsche 991 made me cry.
I just can't deal with the the MCT anymore, its really a disappointment when you know what else is on the market, as I told them at the AMG event MCT is 10 year old E46 M3 technology with a minor upgrade.
It being too heavy is a load of crap.
Honestly I am thinking of trying an audi out they make a twin turbo V8 with DCT in the S6 and and RS7 both of which with a tune make 550hp 550lb tq+ can't recall the exact number but that with DCT and AWD. I just view DCT plus turbo cars as a must, the DCT can make up for quite a bit of less power by its faster shift times. Plus when you floor a DCT it grabs a lower gear a heck of a lot faster, again the porsche 991 made me cry.
I just can't deal with the the MCT anymore, its really a disappointment when you know what else is on the market, as I told them at the AMG event MCT is 10 year old E46 M3 technology with a minor upgrade.
However, in the S6, a $1200 tune and street tires will launch this 4400 lb behemoth to 60 in 3.7 seconds and run the 1/4 mile in 11.49 seconds. Quite the family car. Best car I've owned so far. Only complaint is the transmission programming.
Last edited by Dr Chill; Nov 15, 2013 at 08:30 AM.
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From: Pasadena, CA
C6 Z06, 997 C2S
I can't believe folks are defending the MCT vs a proper DCT; perhaps those of you who are hanging on to the MCT have never had a manual transmission car? (I do not mean any disrespect with this question at all)
DCT is the closest automated gearbox that can match the experience of a proper 3 pedal gearbox, in that its downshifts/upshifts occur almost exactly when you want in manual mode.
The MCT is great at upshifts in auto Sport + mode, but in manual mode the paddles are laggy and downshifts are not very responsive.
I've been infatuated with the C63 since 2009, but just could not justify getting it due to the gearbox alone. The MCT is a huge improvement over the 7g tronic tranny in the pre-12 C63's IMO, but still subpar compared to what's out there IMHO.
I recently test drove the new BMW 435i and even the sport auto in that car is much more responsive than the MCT.
If MB mated a proper gearbox to that glorious M156 engine...man, life would be complete for me! It doesn't even need to be a true DCT, just make the dang thing more responsive in manual mode and it'll be a winner IMHO.
If the next gen C63 comes with a better gearbox (I highly doubt AMG would disappoint in the power department) then I'm ordering one ASAP. Don't even care that it's a first year model lol
DCT is the closest automated gearbox that can match the experience of a proper 3 pedal gearbox, in that its downshifts/upshifts occur almost exactly when you want in manual mode.
The MCT is great at upshifts in auto Sport + mode, but in manual mode the paddles are laggy and downshifts are not very responsive.
I've been infatuated with the C63 since 2009, but just could not justify getting it due to the gearbox alone. The MCT is a huge improvement over the 7g tronic tranny in the pre-12 C63's IMO, but still subpar compared to what's out there IMHO.
I recently test drove the new BMW 435i and even the sport auto in that car is much more responsive than the MCT.
If MB mated a proper gearbox to that glorious M156 engine...man, life would be complete for me! It doesn't even need to be a true DCT, just make the dang thing more responsive in manual mode and it'll be a winner IMHO.
If the next gen C63 comes with a better gearbox (I highly doubt AMG would disappoint in the power department) then I'm ordering one ASAP. Don't even care that it's a first year model lol
Last edited by csexty3; Nov 15, 2013 at 11:15 AM.
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CLK63 Black Series
lol ok please explain - all I know is there are more differences between a DCT and all other transmissions than just no interruption of power. The TH400 in my GTA and the 4L60e in my WS6 both change gears with no power interruption. You can say that one of the things that differentiates a DCT from conventional manual transmissions (aside from sequential/dog tooth type Liberty/Jerico/G-Force) is that there is no power interruption between shifts. But that's only part of the equation.
Oh and I agree MB autos suck but that doesn't mean I can't enjoy my MCT
Oh and I agree MB autos suck but that doesn't mean I can't enjoy my MCT
… anyhow, a DCT is a manual transmission that has been "automated", but instead of 1 has 2 sub drives and 2 clutches. One sub drive for odd gears with it's own clutch and one for even gears, also with it's own clutch. When the gear lever is pulled, whether you shift up or down, it's only a matter of opening one clutch and closing the other … going back and forth between sub drives … which takes 8 milliseconds … making it a "seamless" power transmission to the ground without "shift shock" or "torque interruption".
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From: NYC
2015 E63S AMG & 2013 GLK350
Originally Posted by SMP
...making it a "seamless" power transmission to the ground without "shift shock" or "torque interruption".
