7G transmission owners, please check in here.
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From: Camas, WA
2007 C230SS; 2014 ML350 BT
7G transmission owners, please check in here.
So, I am ~300 miles away from my warranty expiring on my 07, and am trying to get my dealer to fix some issues I have. The one issue in particular is I have is the shift quality of the 4-5 upshift on my 7G transmission. I notice that the 4-5 upshift is noticeably more pronounced, almost harsh compared to all the other upshifts. It doesn't matter whether I am in comfort or sport mode. I do have the latest software and the transmission was serviced, at the recommended 38K miles.
My question is, do any of you 7G owners have this same issue? I am trying to determine if this is normal operation or a problem.
My question is, do any of you 7G owners have this same issue? I am trying to determine if this is normal operation or a problem.
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2006 C350 Sport 6MT
The only issue I really have is when I come to a stop and I get a hard jerk. I still get it and sometimes I don't. The dealers really don't want to mess with the trannys so they give you excuses.
Have you tried doing a sneaky reset and see if the harsh shift is still there?
put key turn on position 2
Press the pedal all the way and hold it for 5 seconds(hitting the pushdown)
while holding you foot down come back to position 0 and take you foot off
I really don't think this will do anything to solve the strong upshifts but give it a try. It can't hurt to try.
Have you tried doing a sneaky reset and see if the harsh shift is still there?
put key turn on position 2
Press the pedal all the way and hold it for 5 seconds(hitting the pushdown)
while holding you foot down come back to position 0 and take you foot off
I really don't think this will do anything to solve the strong upshifts but give it a try. It can't hurt to try.
Thread Starter
Super Moderator
Joined: Dec 2006
Posts: 2,403
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From: Camas, WA
2007 C230SS; 2014 ML350 BT
The only issue I really have is when I come to a stop and I get a hard jerk. I still get it and sometimes I don't. The dealers really don't want to mess with the trannys so they give you excuses.
Have you tried doing a sneaky reset and see if the harsh shift is still there?
put key turn on position 2
Press the pedal all the way and hold it for 5 seconds(hitting the pushdown)
while holding you foot down come back to position 0 and take you foot off
I really don't think this will do anything to solve the strong upshifts but give it a try. It can't hurt to try.
Have you tried doing a sneaky reset and see if the harsh shift is still there?
put key turn on position 2
Press the pedal all the way and hold it for 5 seconds(hitting the pushdown)
while holding you foot down come back to position 0 and take you foot off
I really don't think this will do anything to solve the strong upshifts but give it a try. It can't hurt to try.
I have tried the "reset" several times on mine and it doesn't do a thing. I have it from a fairly reliable source that the 7G (722.9) transmission doesn't have the soft reset like the 5 speed 722.6 transmissions do.
Last edited by johnand; Jun 24, 2009 at 07:07 PM. Reason: Typo
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2006 C350 Sport 6MT
You felt that too? (reset does nothing) I was telling people in this forum (https://mbworld.org/forums/w211-amg/...ed-star-4.html) that I did not feel a difference and they said it does work. But still I believe it doesnt.
They flashed my tranny before like 3 months ago and it was fine now it came back. Is yours completely gone or did it ever come back?
Thanks
They flashed my tranny before like 3 months ago and it was fine now it came back. Is yours completely gone or did it ever come back?
Thanks
Thread Starter
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Joined: Dec 2006
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From: Camas, WA
2007 C230SS; 2014 ML350 BT
You felt that too? (reset does nothing) I was telling people in this forum (https://mbworld.org/forums/w211-amg/...ed-star-4.html) that I did not feel a difference and they said it does work. But still I believe it doesnt.
They flashed my tranny before like 3 months ago and it was fine now it came back. Is yours completely gone or did it ever come back?
Thanks
They flashed my tranny before like 3 months ago and it was fine now it came back. Is yours completely gone or did it ever come back?
Thanks
As far as the soft reset, you need STAR or you could disconnect your battery for a few hours. I haven't tried the battery disconnect yet. I am 99.9% sure the reset does not work on the 722.9. But w/o access to a STAR system to verify, I can't be 100%.
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From: Saint Augustine, FL
1999 CLK320 (sold), 2007 C230 SS (gone), 2000 Grand Marquis, 2011 CR-Z, stay tuned...
the soft reset on my '07 C230 works fine. Noticeable difference in the low end, but only for a day or so.
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2006 C350 Sport 6MT
I'm starting to think this has to do with adaptation as well. When I got my car back when they flashed the tranny software it was fine. Now back to normal.
I wonder if I can take it somewhere where they can program Comfort to be Sport and Sport to be without adaptation.
I never use comfort so why not make that into sport and make sport not to adapt.
I heard the new AMGs dont have adaptation.
I wonder if I can take it somewhere where they can program Comfort to be Sport and Sport to be without adaptation.
I never use comfort so why not make that into sport and make sport not to adapt.
I heard the new AMGs dont have adaptation.
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2006 C350 Sport 6MT
I hate adaptation because there has been numerous times I'm stuck in traffic then I press on the gas and literally for 3 seconds nothing (starts acceleration slowly) until I press it more then it starts moving.
Adaptation = Worthless Crap (well at least for us youngsters)
Adaptation = Worthless Crap (well at least for us youngsters)
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From: MD
2007 C230 and 1985 Monte SS
My 7G seems really clunky, especially on the downshifts when coming to a stop. I have learned how to modulate the throttle to smooth it out some on the upshifts, but it is still jerky when you ease off the throttle after accelerating. I'm at 34,000ish right now, so I'm hoping that the tranny service will fix it. I'm going to ask them to flash the TCU and ECM with the latest software while they have the car.
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2006 C350 Sport 6MT
It's confirmed guys. The ECU reset (hold 5 sec) doesn't work on the 7G.
I don't know about you guys but on my car getting into dyno mode is different than position 2 then 3 clicks.
I go to position 2 then 1 then 3 clicks. Maybe you have to go to position 2 then 1 then hold the pedal for 5 sec??
I'll give it a try.
I don't know about you guys but on my car getting into dyno mode is different than position 2 then 3 clicks.
I go to position 2 then 1 then 3 clicks. Maybe you have to go to position 2 then 1 then hold the pedal for 5 sec??
I'll give it a try.
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From: Huntington Beach, Ca.
'17 Jaguar XF
The E Class/W211 forum has the most experience with the 7G as it was first introduced with that model, I think 2003? There's been lots of problems with the 7G but they seem to have fixed them all from what I can see. Search that forum....
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From: Saint Augustine, FL
1999 CLK320 (sold), 2007 C230 SS (gone), 2000 Grand Marquis, 2011 CR-Z, stay tuned...
It's confirmed guys. The ECU reset (hold 5 sec) doesn't work on the 7G.
I don't know about you guys but on my car getting into dyno mode is different than position 2 then 3 clicks.
I go to position 2 then 1 then 3 clicks. Maybe you have to go to position 2 then 1 then hold the pedal for 5 sec??
I'll give it a try.
I don't know about you guys but on my car getting into dyno mode is different than position 2 then 3 clicks.
I go to position 2 then 1 then 3 clicks. Maybe you have to go to position 2 then 1 then hold the pedal for 5 sec??
I'll give it a try.
For the dyno mode, you have to have the key in position 2, but you have to make sure that the MFD is on the odometer setting. It easily works for me, so I don't know why it wouldn't work for you
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From: Upper Marlboro, MD
2006 SL500/2006 Porsche Cayenne S Titanium
I had a c230 and tried the reset and did notice a difference. I would like to add that the 7 speed is definately slower in response than the 5spd on my girlfriends previous 03 SL. One thing that I think you should purchase is the Sprint Booster. I had it installed on my 06 SL and holy s#$, it's a different machine. The SB does not increase your power but does translate to earlier shifts and gives you the feeling of more power. There are lots of posts about it, just type in SB in the search catagory. It's the best $320 I've spent and I still plan on having Renntech flash the ECU.
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2006 C350 Sport 6MT
He told me the only way you will really feel a difference is by disconnecting the battery but you will get faults.
This got me thinking and I tried this.
As I mentioned earlier for some odd reason when I try to get into dyno mode I have to go to 2 then 1 then do the 3 clicks. If it is on 1 then I do 3 clicks I get nothing and same goes for position 2.
So I tried the ECU reset (foot on pedal) from 2 to 1 then hold it on 1 and I very slightly felt a little change (maybe a placebo effect).
This got me thinking I don't think the ECU reset will change the way my transmission shift can it? I think this only effects the throttle which I slightly felt. But I have the 350 engine wich is why I am not feeling a difference? But then the tech told me it doesn;t do anything. Maybe he meant you dont feel a difference?
I dont know anymore. I guess STAR is the best way to go huh?
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2006 C350 Sport 6MT
Also here is what member is saying.
https://mbworld.org/forums/w211-amg/...happens-2.html
It works for some people and not for others. A lot of people are having trouble as well.
Since this ECU re-set does not seem to work on 2007+ models (especially 63 models), is there a way to re-set adaptations through STAR for the 63?
Many people seem to be divided on this..... some say it is possible and very easy to re-set adaptations for the 7-speed through STAR while others say it is not so easy
Many people seem to be divided on this..... some say it is possible and very easy to re-set adaptations for the 7-speed through STAR while others say it is not so easy
https://mbworld.org/forums/w211-amg/...happens-2.html
It works for some people and not for others. A lot of people are having trouble as well.
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.
I have an intermittent problem in busy street traffic: it shifts roughly from what feels like 3-4 in S mode, but I haven't been able to reproduce it to verify that. Maybe it is 4-5, instead.
I asked the dealership to reset my used '07 because I have to merge w/o a lane on the fast street outside my house. Would it rev in low gear or move? Dangerous for me.
The SA said he couldn't reset it, but it felt as if he did when I got the car home. I told him I knew how to do it for an '06 from the internet.
If I recall, the engine was cold when it shifted roughly. It happened before and after the reset, but it doesn't happen all the time.
Is there such a thing as a cold transmission?
ALSO - please help. I hear and feel a small clunk from the rear when I take my foot off and on the gas to slow down and resume speed on city turns. A flex disk? It gets looked at with 52k service. Thanks.
I asked the dealership to reset my used '07 because I have to merge w/o a lane on the fast street outside my house. Would it rev in low gear or move? Dangerous for me.
The SA said he couldn't reset it, but it felt as if he did when I got the car home. I told him I knew how to do it for an '06 from the internet.
If I recall, the engine was cold when it shifted roughly. It happened before and after the reset, but it doesn't happen all the time.
Is there such a thing as a cold transmission?
ALSO - please help. I hear and feel a small clunk from the rear when I take my foot off and on the gas to slow down and resume speed on city turns. A flex disk? It gets looked at with 52k service. Thanks.
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2006 C350 Sport 6MT
I read somewhere else that some people dont hold the kickdown.
Can you confirm this? Also were your windows and sunroof closed? CD player off?
Thanks
My car is responding like crap. I counted I press the throttle and 3 seconds later and i'm not joking 3 seconds later it picks up speed.
Thanks
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2006 C350 Sport 6MT
It works guys it really works. I talked to another guy this time at Keyes European and the tech told me all about it.
The ECU reset work but you have to abuse the hell out of it so it can learn. I guess my problem was I was resetting it then going to work in traffic and it was learning to be a granny.
He said 6 good floors (pedal to the metal) should do it.
Thanks bdgdl08 because of you I still have hope.
The ECU reset work but you have to abuse the hell out of it so it can learn. I guess my problem was I was resetting it then going to work in traffic and it was learning to be a granny.
He said 6 good floors (pedal to the metal) should do it.
Thanks bdgdl08 because of you I still have hope.
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From: Saint Augustine, FL
1999 CLK320 (sold), 2007 C230 SS (gone), 2000 Grand Marquis, 2011 CR-Z, stay tuned...
Great! 
It really makes a night and day difference to me... but only for about a day (or even less). I'll try flooring it a few times right after I do it and see if that helps the longevity. So thank YOU!
It really makes a night and day difference to me... but only for about a day (or even less). I'll try flooring it a few times right after I do it and see if that helps the longevity. So thank YOU!
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2006 C350 Sport 6MT
Just got back from a test drive. 
Wow the car runs like a beast. Shifting like crazy and the funny part is I was complaining because car was shifting to rough
I take back my comment about how it doesn't work but I still think the Pierlli Neros suck
But the sad part is come tomorrow the one hour traffic to work my car is going to be a granny again.
Thanks again bdgdl08.
The way it worked was I put the key in then turned it once. I use to turn it twice.
I'm still stunned how the tech at the santa monica location (W.I. Simonson) told me the 7G doesn't reset.
Wow the car runs like a beast. Shifting like crazy and the funny part is I was complaining because car was shifting to rough
I take back my comment about how it doesn't work but I still think the Pierlli Neros suck
But the sad part is come tomorrow the one hour traffic to work my car is going to be a granny again.
Thanks again bdgdl08.
The way it worked was I put the key in then turned it once. I use to turn it twice.
I'm still stunned how the tech at the santa monica location (W.I. Simonson) told me the 7G doesn't reset.
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From: Saint Augustine, FL
1999 CLK320 (sold), 2007 C230 SS (gone), 2000 Grand Marquis, 2011 CR-Z, stay tuned...
You think the Pirelli Neros suck, you should try the Michellin Pilot Primacy ones they put on my car. The understeer is horrible, especially in roundabouts. Going 25 around a large roundabout my front tires squeal!
