Clunky transmission when coming to stop
01-15-2018, 01:54 PM
#1
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Clunky transmission when coming to stop
Anyone else have an issue where the transmission “clunks” into first gear when they come to a stop? If I slow to a stop and the trans is in 2nd, you can feel a rather jarring movement as the car slips back into 1st. It’s obvious in Comfort and even more pronounced in Sport.
2018 E63s Wagon, 205 miles
2018 E63s Wagon, 205 miles
01-15-2018, 02:12 PM
#2
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go fast grocery getter wagon
I had a similar situation happened to me 2-3 times thus far (about 1000 miles into ownership). It has not happened again in the last week at all. Looks to be gremlin issue for now.
Also, mine has this random 'thud' / soft jolt 1-2 seconds after I have made a full stop. It does not happen all the time, no matter it's in C or S mode and/or even have the Start/Stop function on/off. The sensation of mine is like I am tapped on the rear bumper from behind ever so gently. I googled this and it has happened to other non AMG cars too. It appears it is a software issue with the tranny on those cars, but not sure if this applies to ours. I have already made an appt to have them check out next month when I am going to do the rear diff. fluid change.
Also, mine has this random 'thud' / soft jolt 1-2 seconds after I have made a full stop. It does not happen all the time, no matter it's in C or S mode and/or even have the Start/Stop function on/off. The sensation of mine is like I am tapped on the rear bumper from behind ever so gently. I googled this and it has happened to other non AMG cars too. It appears it is a software issue with the tranny on those cars, but not sure if this applies to ours. I have already made an appt to have them check out next month when I am going to do the rear diff. fluid change.
01-15-2018, 03:42 PM
#4
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I had a similar situation happened to me 2-3 times thus far (about 1000 miles into ownership). It has not happened again in the last week at all. Looks to be gremlin issue for now.
Also, mine has this random 'thud' / soft jolt 1-2 seconds after I have made a full stop. It does not happen all the time, no matter it's in C or S mode and/or even have the Start/Stop function on/off. The sensation of mine is like I am tapped on the rear bumper from behind ever so gently. I googled this and it has happened to other non AMG cars too. It appears it is a software issue with the tranny on those cars, but not sure if this applies to ours. I have already made an appt to have them check out next month when I am going to do the rear diff. fluid change.
Also, mine has this random 'thud' / soft jolt 1-2 seconds after I have made a full stop. It does not happen all the time, no matter it's in C or S mode and/or even have the Start/Stop function on/off. The sensation of mine is like I am tapped on the rear bumper from behind ever so gently. I googled this and it has happened to other non AMG cars too. It appears it is a software issue with the tranny on those cars, but not sure if this applies to ours. I have already made an appt to have them check out next month when I am going to do the rear diff. fluid change.
It’s been rather annoying and I notice it every time I come to a stop. I don’t know if this is normal behavior or a problem that other people are experiencing
Last edited by Fonzie AMG; 01-15-2018 at 03:47 PM.
01-15-2018, 03:52 PM
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Hmm, since it happened to you and me, I guess we will have to wait for others to check in with their experience (if any at all). If we get little feedbacks, then it must be the odd software issue.
It is a bit annoying for sure.
It is a bit annoying for sure.
01-15-2018, 03:56 PM
#6
I have just a bit over 500 miles on my car now and it does it too but only when the engine & transmission are cold. So far it only happens for the first couple stops and when everything is warmed up, it doesn't do it. Hopefully, it doesn't get worse. Does yours do this even after everything is up to operating temperatures?
01-15-2018, 04:02 PM
#7
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I have just a bit over 500 miles on my car now and it does it too but only when the engine & transmission are cold. So far it only happens for the first couple stops and when everything is warmed up, it doesn't do it. Hopefully, it doesn't get worse. Does yours do this even after everything is up to operating temperatures?
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01-15-2018, 04:03 PM
#8
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2020 Audi R8 V10, 2016 AMG GTS, 2018 E63S Edition 1, 2018 Porsche GTS Cab, 2012 C63 BS
I just dont have this situation occurring but did on my 2010 W212 E63.... I only drive in Sport + and Im tuned so who knows.
01-15-2018, 04:13 PM
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For me, it happened when car is totally warmed up and in normal operating temp. (do note that at where I am, the outside ambient temp is around -5 to -20 degree Cel. for most days when it happened).
01-15-2018, 04:36 PM
#10
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I just brought the car by the dealership and talked to the service manager. He said it’s a known issue with any 63 AMG as they all share the same transmission. He said they are working on a software update for it and will let me know when it comes out. Clearly it’s a known issue and hopefully it will be resolved soon.
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01-15-2018, 05:34 PM
#12
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It seems like they had been getting the complaint about previous model 63's. As soon as I started explaining the problem he was able to describe it to me perfectly. What he said about us all having the "same transmissions" was off but he was confident there will be a software update coming for it. I talked to Renntech to see if their ECU tune will have any impact on TCU or tranny behavior (as I'm going to tune as soon as I hit 1k miles) but they said no. It's definitely an obnoxious issue.
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01-15-2018, 06:08 PM
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thanks ... it would be great to update this thread once you have the dealer service bulletin # handy so I can relay this to my dealer (so they cannot play dumb)
01-15-2018, 06:12 PM
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01-15-2018, 10:01 PM
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2018 S560 and 2019 E450 Wagon.
I had a similar situation happened to me 2-3 times thus far (about 1000 miles into ownership). It has not happened again in the last week at all. Looks to be gremlin issue for now.
Also, mine has this random 'thud' / soft jolt 1-2 seconds after I have made a full stop. It does not happen all the time, no matter it's in C or S mode and/or even have the Start/Stop function on/off. The sensation of mine is like I am tapped on the rear bumper from behind ever so gently. I googled this and it has happened to other non AMG cars too. It appears it is a software issue with the tranny on those cars, but not sure if this applies to ours. I have already made an appt to have them check out next month when I am going to do the rear diff. fluid change.
Also, mine has this random 'thud' / soft jolt 1-2 seconds after I have made a full stop. It does not happen all the time, no matter it's in C or S mode and/or even have the Start/Stop function on/off. The sensation of mine is like I am tapped on the rear bumper from behind ever so gently. I googled this and it has happened to other non AMG cars too. It appears it is a software issue with the tranny on those cars, but not sure if this applies to ours. I have already made an appt to have them check out next month when I am going to do the rear diff. fluid change.
01-15-2018, 10:45 PM
#16
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01-16-2018, 07:51 AM
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yeah the service manager seemed pretty confident when he said it was an issue they were already dealing with. He said they recently took a GLS 63 apart trying to figure it out a couple months ago. Hoping the software update comes soon, I notice it on literally every stop now lol
01-16-2018, 08:45 AM
#18
Just an update on my car. I went for a quick drive last night (the car had been sitting all day) and it never did the 2nd to 1st lurch (comfort mode). Thinking about it, it really only did it the last couple times I drove the car so I kinda assumed it had always did it when cold. However, I don’t remember it ever doing it up until a few days ago. Based on what others have posted, it seems some owners continually experience this while others do on occasion to others never having this issue. I guess I’m in the occasional group.
01-16-2018, 08:46 AM
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From the way you describe it, 1-2 seconds after you have made a full stop it sure sounds like what you are feeling is the Auto engine Stop feature turning the engine off in eco mode. Then when the car restarts itself if you sit there long enough you feel another thud, I sometimes have to look in my rearview mirror because it feels just like the car behind me tapped my bumper. But ya, this transmission is a little jerky at times kinda like the old 7 speed was in my 2012 AMG Wagon, I got pretty well use to it in that car and both cars are worse with this when they are cold. I especially feel it driving with the hand controls because the controls are pretty sensitive, but really does not bother me as I'm pretty well use to it. Just hit 4000 miles on my car a couple days ago. Sometimes when I get in my S550 it's a real joy because that car is so silky smooth, different type of Trans. But then when I really get on that car I miss the extra 150 hp the Amg has on tap.
The first time it happened, I really thought the car behind me tapped me on the rear bumper but my sensor did not go off at all.
01-16-2018, 09:28 AM
#20
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No difference whether it is in Auto Stop/Start or not. I have already tried both situation. The thud only comes after I made the stop and if I am in the stop & go type of traffic (like inch by inch moving along), it does not give me that thud issue. It mainly resulted from the car having been moving along and say I drove about 100 meters and then make the stop and then there is that thud, ever so slightly.
The first time it happened, I really thought the car behind me tapped me on the rear bumper but my sensor did not go off at all.
The first time it happened, I really thought the car behind me tapped me on the rear bumper but my sensor did not go off at all.
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01-16-2018, 10:05 AM
#22
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it’s like clockwork, that’s exactly when the lurch/clunk happens. Change your dash so you can see the gears changing and watch yourself come to a stop in 2... and as soon as it changes back to 1... boom.
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01-16-2018, 01:48 PM
#23
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2014 E63S; AMS 100 octane ecu tune; edok tcu tune; BB intakes; dyno tuned
This has been a problem on Benz transmissions 7gtronic for a while
01-19-2018, 02:48 PM
#24
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It's almost like my car knew I was complaining about it. I've experienced several days recently where the 2-1 clunk issue is only happening about 50% of the stops. No rhyme or reason, I can't figure out a pattern or behavior that triggers it. Such an odd issue, hopefully there really is a software fix in the works.
