SL55/63/65/R230 AMG: Getting a new MCT transmission installed
Thread Starter
MBWorld Fanatic!
Joined: May 2007
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From: Irvine, CA
Car Whore
Getting a new MCT transmission installed
So my SL has been in the shop for the past week due to tranny issues, and it looks like they will be replacing the entire MCT transmission with a new one from Germany. They are still waiting on final confirmation from Germany, but my SA says that is more than likely what will be happening.
About 1 month ago I originally brought it in because the downshifts from 4-3, and 3-2 were very rough and BANGED into place when the car was being driven in Comfort or regular Sport mode. They replaced the transmission clutch valve/computer or something and it was better than ever with shifts for a few weeks (better than new i think even).
Then I started having the 4-3 downshift problem again and I brought it back in last Monday. So apparently its really bad, and I need a new MCT trans. and I'm "the first to have this problem so no one really knows what to do or whats wrong".
Oh well, loving my C300 loaner
About 1 month ago I originally brought it in because the downshifts from 4-3, and 3-2 were very rough and BANGED into place when the car was being driven in Comfort or regular Sport mode. They replaced the transmission clutch valve/computer or something and it was better than ever with shifts for a few weeks (better than new i think even).
Then I started having the 4-3 downshift problem again and I brought it back in last Monday. So apparently its really bad, and I need a new MCT trans. and I'm "the first to have this problem so no one really knows what to do or whats wrong".
Oh well, loving my C300 loaner
Senior Member
Joined: Dec 2007
Posts: 302
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2007 S550 AMG with ABC
How many miles on your car? Also when it was new, is the MCT gearbox in comfort mode smooth? Since the MCT gearbox doesn't have a torque converter I've been wondering if it is smooth enough to make it into the S class..
Member
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'08 Audi R8, '09 SL63, '10 GLK, '10 ML550
For your car, I am sure they tried the new software update that was released in Jan, and/or wet clutch adaptations (software adjustments), and/or a valve body replacement.
My new SL63 is flawless (got it in Nov) and the MCT is very smooth. It is an awesome car to drive and I especially enjoy the MCT. The same MCTs are going into the new E63s due out this summer. With this high-tech, new-tech, there is bound to be glitches in some of the cars. I would never own an MB out of warranty.
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From: Irvine, CA
Car Whore
Thats right spnslc, they replaced the valve body and then I also heard that they updated to the new software last time, but the problem came back. The car is hmmm... 6 or so months old now.
Also, my race start always seemed to bog down the few times I used it, and it would've been faster to just gun it from the stop then try and use race start.
Also, my race start always seemed to bog down the few times I used it, and it would've been faster to just gun it from the stop then try and use race start.
Last edited by Fantasm; Apr 27, 2009 at 01:51 PM.
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MBWorld Fanatic!
Joined: Jul 2003
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From: Chicago, IL
Real Cars
And FWIW, SMG is really not a pioneering tech... but DSG on the other hand. Now that is innovative.
-m
Last edited by Marcus Frost; Apr 27, 2009 at 05:42 PM.
Junior Member
Joined: Aug 2007
Posts: 26
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SLR722,SL63AMG
Funny you guys mentioned the transmission problem. Yesterday i just started the car and put in in reverse and it started sputtering and then stalled.
I shut it down for about 3 minutes and started it again and same thing happenned,
So now, instead of putting it in reverse,i put it in drive and lo an behold,the revs jump up and down, alot of hesitation and again it stalls.
This time i turned it off for about 10 minutes and started in in park,moved the gear lever to neutral,gave it some gas up to 1200 rpm and shifted it to drive.
A big clunk noise as it went into gear but i managed to get the car to move forward and get in home.
The thing is, it stalled at every light as soons as the revs went below 1000rpm and it didn't like going into first gear and was very abrupt when it did.
Today, i started the car and put it in reverse and it would not engage.It was like being in neutral. I managed to get it going in drive just to move it on the driveway and called a flatbed.
I am hoping it is a software issue but from what i have read in your posts this could very be that the transmission is shot.
That being the case, it is going to be a long winded fix sadly.
Any thoughts?
I shut it down for about 3 minutes and started it again and same thing happenned,
So now, instead of putting it in reverse,i put it in drive and lo an behold,the revs jump up and down, alot of hesitation and again it stalls.
This time i turned it off for about 10 minutes and started in in park,moved the gear lever to neutral,gave it some gas up to 1200 rpm and shifted it to drive.
A big clunk noise as it went into gear but i managed to get the car to move forward and get in home.
The thing is, it stalled at every light as soons as the revs went below 1000rpm and it didn't like going into first gear and was very abrupt when it did.
Today, i started the car and put it in reverse and it would not engage.It was like being in neutral. I managed to get it going in drive just to move it on the driveway and called a flatbed.
I am hoping it is a software issue but from what i have read in your posts this could very be that the transmission is shot.
That being the case, it is going to be a long winded fix sadly.
Any thoughts?
Member
Joined: Jul 2004
Posts: 209
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04 SL55 (sold),05 SL55, 09 SL63, 07 C2S cab Porsche,
I'm also having the 4 to 3 shifting problem. MY SF told me they have a clutch pack to fix it . Considering that they can't fix a rattle ( which MBUSA) says is normal. I'm highly reluctant to let them touch my tranny. I can;t get my race start to function correctly at all either.
Member
Joined: Feb 2006
Posts: 241
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'08 Audi R8, '09 SL63, '10 GLK, '10 ML550
Funny you guys mentioned the transmission problem. Yesterday i just started the car and put in in reverse and it started sputtering and then stalled.
I shut it down for about 3 minutes and started it again and same thing happenned,
So now, instead of putting it in reverse,i put it in drive and lo an behold,the revs jump up and down, alot of hesitation and again it stalls.
This time i turned it off for about 10 minutes and started in in park,moved the gear lever to neutral,gave it some gas up to 1200 rpm and shifted it to drive.
A big clunk noise as it went into gear but i managed to get the car to move forward and get in home.
The thing is, it stalled at every light as soons as the revs went below 1000rpm and it didn't like going into first gear and was very abrupt when it did.
Today, i started the car and put it in reverse and it would not engage.It was like being in neutral. I managed to get it going in drive just to move it on the driveway and called a flatbed.
I am hoping it is a software issue but from what i have read in your posts this could very be that the transmission is shot.
That being the case, it is going to be a long winded fix sadly.
Any thoughts?
I shut it down for about 3 minutes and started it again and same thing happenned,
So now, instead of putting it in reverse,i put it in drive and lo an behold,the revs jump up and down, alot of hesitation and again it stalls.
This time i turned it off for about 10 minutes and started in in park,moved the gear lever to neutral,gave it some gas up to 1200 rpm and shifted it to drive.
A big clunk noise as it went into gear but i managed to get the car to move forward and get in home.
The thing is, it stalled at every light as soons as the revs went below 1000rpm and it didn't like going into first gear and was very abrupt when it did.
Today, i started the car and put it in reverse and it would not engage.It was like being in neutral. I managed to get it going in drive just to move it on the driveway and called a flatbed.
I am hoping it is a software issue but from what i have read in your posts this could very be that the transmission is shot.
That being the case, it is going to be a long winded fix sadly.
Any thoughts?
Thread Starter
MBWorld Fanatic!
Joined: May 2007
Posts: 1,200
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From: Irvine, CA
Car Whore
Who do you guys think I should approach about having one of my MBZ Financial payments waived because of all this? My car will have been unusable for about a month once all this is over and done with.
The gentleman who came down from MBUSA apparently gave them the go-ahead to do a tear down on the transmission and try to find the problem, and he does confirm there is a problem.
Its been 3 weeks now that the car in total has been at the shop, and will be 4 weeks by the time they are hopefully done next week.
The payment on the SL63 is very high, so I do feel it is worth it to pursue a waived month.
The gentleman who came down from MBUSA apparently gave them the go-ahead to do a tear down on the transmission and try to find the problem, and he does confirm there is a problem.
Its been 3 weeks now that the car in total has been at the shop, and will be 4 weeks by the time they are hopefully done next week.
The payment on the SL63 is very high, so I do feel it is worth it to pursue a waived month.
Member
Joined: Jul 2004
Posts: 209
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04 SL55 (sold),05 SL55, 09 SL63, 07 C2S cab Porsche,
I need to bring mine in for the same problem. Which dealership is doing your work and who is your advisor. . I may drive mine down as I really don't trust the techs where I live.
PM me
thanks
George
PM me
thanks
George
Junior Member
Joined: Aug 2007
Posts: 26
Likes: 0
SLR722,SL63AMG
Well i picked up the car from the dealer yesterday. They said it was fixed and they reprogrammed the comouter.
It drove fine for 1 hour then it started to act up again.
I am taking it back on Monday.
It drove fine for 1 hour then it started to act up again.
I am taking it back on Monday.
Junior Member
Joined: Nov 2005
Posts: 67
Likes: 2
From: NYC
2015 SL65, 2015 S63, 2019 Trackhawk, 2012 RR SC
Call my attorney- Sergei Lemberg, Esq. 877-775-3666, he had my 2005 SL55 lemon lawed because my ABC suspension would always drop after a few hours. The key issues are-
1) was the car in for repairs 4 or more times for the same issue
2) was the car in the shop for over 30 days for the same issue
3) was the car purchased or leased new
4) is the car under one year old
My car was finally lemon lawed in month 32 of my lease for a full refund of all lease payments, sales tax, reg. fees + attorney fees. Tell him that Mike from LithoGraphics in NY gave you his number.
1) was the car in for repairs 4 or more times for the same issue
2) was the car in the shop for over 30 days for the same issue
3) was the car purchased or leased new
4) is the car under one year old
My car was finally lemon lawed in month 32 of my lease for a full refund of all lease payments, sales tax, reg. fees + attorney fees. Tell him that Mike from LithoGraphics in NY gave you his number.
Junior Member
Joined: Apr 2009
Posts: 21
Likes: 0
GS300
I'm kinda disturbed from what i'm reading. Why are you having such problems with cars that are over $100k and are suppose to be from the best car maker too?
I've never heard anyone seeking legal help cuz they're driving a Japanese car...not even a corola!!
I've never heard anyone seeking legal help cuz they're driving a Japanese car...not even a corola!!
Super Member
Joined: Feb 2008
Posts: 655
Likes: 4
From: Surf City, USA
What I like!
It's sad to hear this.... more than one year after the new M3's launch, BMW is still working out the bugs with M-DCT. Too bad MB hasn't been able to get this new tech right either.... Hope they get things sorted out soon for you guys.
Thread Starter
MBWorld Fanatic!
Joined: May 2007
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From: Irvine, CA
Car Whore
Man, I was pretty indifferent to this problem until I just remembered that the MAIN reason I got the SL63 was because of the MCT.
I'm pretty pissed about this now and the other things Mercedes made the SL63 lack. They better cover at least the 1 month of downtime I've had with this car.
#1. Why the hell doesn't the SL63 have traffic patterns/navigation on it when its the same NAV system as the rest of the new cars?
I'm going to make a ruckus about this and have them try to get traffic nav working on my SL.
I'm pretty pissed about this now and the other things Mercedes made the SL63 lack. They better cover at least the 1 month of downtime I've had with this car.
#1. Why the hell doesn't the SL63 have traffic patterns/navigation on it when its the same NAV system as the rest of the new cars?
I'm going to make a ruckus about this and have them try to get traffic nav working on my SL.
Last edited by Fantasm; May 3, 2009 at 06:28 PM.
Super Member
Joined: Feb 2006
Posts: 763
Likes: 12
From: South Florida
2015 Mercedes-Benz CLS63 AMG S
Man, I was pretty indifferent to this problem until I just remembered that the MAIN reason I got the SL63 was because of the MCT.
I'm pretty pissed about this now and the other things Mercedes made the SL63 lack. They better cover at least the 1 month of downtime I've had with this car.
#1. Why the hell doesn't the SL63 have traffic patterns/navigation on it when its the same NAV system as the rest of the new cars?
I'm going to make a ruckus about this and have them try to get traffic nav working on my SL.
I'm pretty pissed about this now and the other things Mercedes made the SL63 lack. They better cover at least the 1 month of downtime I've had with this car.
#1. Why the hell doesn't the SL63 have traffic patterns/navigation on it when its the same NAV system as the rest of the new cars?
I'm going to make a ruckus about this and have them try to get traffic nav working on my SL.
Hi. I PM'd you about your opinion of the SL63. I am considering getting rid of my 2005 CL65 for an SL and I can't decide if I want an SL63 or SL65. If I get the SL63 I will get one with the AMG performance package. I see you had an SL55 in the past and I would really appreciate your review of the SL63. I'm worried I'll miss the torque of my 65. What say you please. Thanks in advance.Larry
Thread Starter
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From: Irvine, CA
Car Whore
Well, my #2. was going to be the bad decision in making an engine without FI, because I absolutely hate not being able to add REAL power to the car.
It really needs to have more power honestly. The top end of the car is weak IMO.
The only reason I picked the SL63 over an FI car, was because of the MCT.
If the MCT doesn't interest you, then pick something else IMO...
It really needs to have more power honestly. The top end of the car is weak IMO.
The only reason I picked the SL63 over an FI car, was because of the MCT.
If the MCT doesn't interest you, then pick something else IMO...
