jacob502

One Mbworld user stated that the MCT available in the SL63 and in the E63 are diffrent than those available in the M157 engines, and that the internals were diffrent. This completely false. I asked the dealers yesterday, and they told me that MCT that was developed for the SL63, the E63, and the new 2012 C63 are exactly the same. The MCT shifts better than the standard 7g-tronic and handles more torque.

Here is an article:
http://amgmarket.com/amg/2010/03/amg...er-v8-biturbo/

"
Power is transferred by the AMG SPEEDSHIFT MCT 7-speed sports transmission used exclusively by AMG, which is already familiar from the SL 63 AMG and E 63 AMG and combines high emotional appeal with outstanding driving dyna-mics and a high level of efficiency. The wet start-up clutch replaces a conventional torque converter, and helps to save fuel. The exemplary fuel economy is also in large measure due to the standard start/stop function. This system is active in the transmission’s Controlled Efficiency (“C”) mode, and switches the eight-cylinder engine off when the car comes to a stop. In “C” mode the sports saloon always starts off in second gear, and the transmission shifts to the next, higher gears at a decidedly early stage. With its high torque at low engine speeds, the V8 engine encourages a smooth, effortless driving style.
The eight-cylinder biturbo engine also features the generator management system familiar from the E 63 AMG: whenever the engine is on the overrun or when braking, kinetic energy is used to charge the battery rather than being wasted as heat in the usual way. In all other operating modes a combination of onboard network and generator management enables the generator to be kept at a low voltage. This reduces the load on the engine and makes for fuel savings of around 0.15 liters per 100 kilometers according to the NEDC standard, and up to 0.2 l/100 km in city traffic with its frequent overrun and braking phases. "

cyberorth

Ahem!
You are contradicting yourself a bit here.
1. New E63 has the 157 so I imagine you are talking about the 2010 MY E.
2. The quotation from the article discusses the 2012 C63 that has nothing to do with the engine 157.
3. You asked the dealer...

I am not arguing against your statement, just giving you a hard time.

jacob502

I Don't know what you trying to achieve.

1- yes I'm talking about the 2010 E63 as the article does too
2- do you even know what this thread is about? The article discusses the MCT 7 speed transmission and how the sl63 , E63 use the same. Transmission model that is used for the newer models
3- yeah, what's the contradiction?

LawRens

Dealership representatives generally tend to not know what they're talking about, and when asked they just give a load of bull.

jacob502

Like you said, in General.

That's not the case right now, and has nothing to do with my post.

Thank you

IAA-C63

On that, I agree. With 5 minutes of research, I usually know more about a car than the dealer rep.

As an example, when I got my C63, I asked the rep if it has any break-in requirements, and she said no. I told her I didn't want to damage the car, so I wanted to be sure, and she said she was sure the answer was no. Not trusting her, I checked the manual and spotted the sticker on the window, where the break-in requirements were clearly spelled out. When I showed them to her, she was really embarrassed (appropriately).

BTW, I first found this forum by doing a Google search for "C63 break in".

MB_Forever

LOL... I like number 3

+10000

Don't depend on dealerships to give you correct information all the time. Sometimes they get lazy and don't bother to fully research the subject. If you have access to a shop foreman or senior mechanic at the dealership, they maybe able or willing to look into it further and give you a better answer.

I think the MCT in the 2010 E63 is very similar to the MCT used with the M157 (2012 CLS63 TT, 2012 E63 TT) but I don't think they are identical. With all the issues they've had with the MCT in the 2009 SL63s, I'm almost certain they've made many improvements. Also, I read somewhere that they may have two different torque ratings. This would make sense since the MCT in the 2010 E63 and SL63 is paired with a NA aspirated engine which will never see the huge amounts of torque that the M157 engine produces.

To complicate things further, the MCT perceived to be in the SLS is also different than the one you have in the SL63 and 2010 E63. And I'm not sure which MCT version will go into the 2012 C63 coupe.

MB_Forever

One thing I do NOT like about the MCT that's in the 2010 SL63 and 2010 E63 is the fact that it does not allow you to perform a decent burnout. I've seen it (and actually personally experienced it) on two different SL63s and 4 different W212 E63s. When you try to force a longer burn out, the MCT over-heats and kills power.

JeffDL

wait really?

cyberorth

Nice talking with you. Ahh babbye

02Drunkenup

SLS doesn't even have the MCT, it works with the AMG DCT, a dual clutch tranny rather than the wet startup clutch. If I remember correctly this transmission is supplied by Getrag.

jacob502

It seems that the number of morons increases in this wonderful forum.

Mbforever, The MCT on all models are the same. Do your research. And one other thing, The SLS does not carry the MCT transmission. For the SLS they use a dual clutch transmission with a carbon fiber shaft. I dont know where you are getting your information, if you have an article about the MCT in the 2009 SL63 and 2010 E63 being diffrent than those that are being released with th 5.5 twin turbo, then please show us. As far as I am concerned they are the same. Configurations of MCT for the SL63 on the AMG website is the same as that for the newer CL and CLS class.

jacob502

Yeah, you told me about that before. Thats intresting, I never really made a long burn out on my car. How long did you burn your tires for?

mthis

When I was at the AMG Academy I asked the head of AMG for NA and he said ALL MCT are the same. From the SL63 to the new CLS63 including the new C63.

jacob502

Exactimindo

I also learned one other thing. The MCT at optimium can handle 1000HP and 1000NM without any problems. Jeseper Jensen from Xtra gave me that info :-)

MB_Forever

I know that the SLS gets the DCT.... but when it was initially released, many people kept referring to it as dual clutch MCT so it spread widely. So at least we agree on the SLS

About 8 to 12 seconds depending on which tires we were using. The MCT would stop the SL and the E63 from spinning the tires beyond 3 to 4 seconds. And if we forced it to, it would cut power. What's your average 60' time with the SL ?

C63 Guy

Riiiiiiight. Maybe by magically deactivating all the electronic nannies, but in reality it'll shut down the power waaaaaaaaaaay before that.

Also, what's optimium?

Josh

jacob502

listen old man....I advice you, just stay out of this

hhughes1

Taken from Automobile magazine:

The CL63 has AMG's seven-speed Speedshift transmission, which uses a wet clutch in place of a torque converter. Seen previously in the SL63 and the E63, the gearbox here has a different clutch pack and new software and is better mannered. Not only does it snap off superquick gearchanges and match revs on downshifts, but it now also equals the smoothness of a torque-converter automatic when taking off from a stop.

The software has certainly been updated otherwise it could not control the new start/stop feature that is active only in C mode. Improving the clutch packs to handle the additional power makes sense as well...the same thing happened for the 2010 7G-tronic but no PR was given to the upgrade. Evolution is a constant aspect of automobile componants and while the tranny is mostly the same, exact is not the accurate term.

jacob502

can you give a source?. As far as I know , the Clutch is the same in all models. Its on the AMG website. They may have a diffrent software, but mechaniclly, they are exactly the same

02Drunkenup

found it on here http://www.automobilemag.com/reviews...ive/index.html

jacob502

Thanks. That is intresting. If this is true. I wonder if the previous models could be upgraded like the new ones. I will certainly look into it

PetroC63

Feel better about owning a 2010 with a beefier transmission.

hhughes1

Good question,especially regarding the smoother shifting attributes. I would guess the clutch packs in the Sl's MCT handle 63 power just fine whereas the 07-09 G-Tronic was not quite up to task. At least one member that I know of upgraded after damaging his 2009.

C63 Guy

Ok, I advice you to learn the difference between advise and advice. And you threw in an extra comma and forgot the word "to", but that's more of an issue for Strunk and White.

Moving beyond your grammatical errors, you're right about the transmissions being the same. I've done a ton of research about these transmissions (Well beyond reading and quoting a few internet articles) as well as having repaired the one in my car already (twice, actually, after my first repair ended up with garbage aftermarket clutches). To summarize: As of 2010 all the gears, carriers, and clutches in both transmissions (from the front pump to the rear bearing) are the same. Different valve bodies, different interfaces to the motor, but the actual hardware is the same. And for those of you keeping score, all the repair and service part numbers for the 722.9s have been swapped out for the newer parts. ie, if you kill the transmission in your 2008 or 2009 and it gets warrantied through MB (or serviced through an authorized repair center) you'll be getting the new parts.

Josh

PS - My avatar picture was sent back in time 20 years from the future. The note said that I wanted myself to see what I would look like if I didn't take better care of myself.

PPS - Internet tough guys will get verbally harassed as I see fit. See my signature.