Rough 3-4 shift
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Member
Joined: Oct 2008
Posts: 176
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From: Eastern NC
'15 S550 4Matic, '15 GL550, 360 Spider, Escalade ESV
Rough 3-4 shift
I have close to 6000 miles on the MY15 car I picked up in August.
For a while I've noticed kind of a rough shift between 3rd and 4th gears under normal acceleration around town. I don't notice it at other shift changes.
Anyone else experience this?
Marc
For a while I've noticed kind of a rough shift between 3rd and 4th gears under normal acceleration around town. I don't notice it at other shift changes.
Anyone else experience this?
Marc
Junior Member
Joined: Feb 2008
Posts: 47
Likes: 1
'25 E450; '25 GV70
I have approx. 2500 miles on my MY S550V4 that I received in July. I too am experiencing some jerky shifting, mostly when the transmission is down shifting, but sometimes when upshifting. I haven't been able to pin point which exact gear(s) it is doing this, but the 3 - 4 gears are what I suspect. It's annoying and not sure if I can replicate it enough to take in for service.
MBWorld Fanatic!
Joined: Oct 2010
Posts: 8,106
Likes: 4,341
From: Corona Del Mar, CA
2019 SL450, 2019 E450 Luxury Trim Wagon, 2024 BMW I7 xDrive60
The truly annoying thing, is that I have a few problems like this that I cannot duplicate for the service manager, so here I am, stuck with them in my $115,000.00 luxury car. If you cannot duplicate a problem, MB will not take you seriously. On the other hand, a Lexus dealer will damn near dismantle the entire car, TRYING to find the problem, because they are so concerned that you be COMPLETELY happy with their product. The best or nothing. Yeah, right.
Newbie
Joined: Mar 2015
Posts: 6
Likes: 0
From: Knoxville TN
2018 SL65 AMG, 2019 AMG S63, 2020 GLS580
Heavy 5-4 Downshift on Upgrade
I have a 2015 S550 with 10K miles and am experiencing a heavy downshift only from 5 to 4 on a upgrade. Dealer reloaded software and did a "software adaption" but problem remains. Not as bad after transmission fluid warmer.
Junior Member
Joined: Jun 2017
Posts: 56
Likes: 6
From: South Florida
2014 S550 4MATIC
Yes! It's driving me crazy.
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Member
Joined: Nov 2017
Posts: 127
Likes: 27
From: Lincoln, CA
2018 S450
I have also noticed the same thing, especially when the transmission is cold. Seems to be D3-D4 when leaving the house and under light acceleration. I also experience some rough downshifts when slowly approaching a stop. It's nothing major but quite noticeable. In the past I did mention this to the SA but the answer is we have to keep it for a few days and test. The upshifts seem to be better now but the weather has also been warmer. I'm going in on Thursday for something else and will mention this again.My thought is it will either get better or worse over time and I have 7 years of warranty lett.
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MBWorld Fanatic!
Joined: Mar 2017
Posts: 1,350
Likes: 493
From: Birmingham, AL
2019 S560, 2022 Audi S8
Mine has done it since brand new when going from 2 down to 1 about 3 times a month. She has 44,000 miles on her now and the problem has never gotten worse. When in Sport only (I think). I actually love considering it as my car's way of just talking to me and saying "hello". It never has worsened. I usually get it out on a straight highway and punch the crap down on the floor and open 'er up. This tends to allow the computer to "unlearn" some of my conservative driving patterns I do and it stops it for awhile.
Junior Member
Joined: Jun 2017
Posts: 56
Likes: 6
From: South Florida
2014 S550 4MATIC
Mine has done it since brand new when going from 2 down to 1 about 3 times a month. She has 44,000 miles on her now and the problem has never gotten worse. When in Sport only (I think). I actually love considering it as my car's way of just talking to me and saying "hello". It never has worsened. I usually get it out on a straight highway and punch the crap down on the floor and open 'er up. This tends to allow the computer to "unlearn" some of my conservative driving patterns I do and it stops it for awhile.
MBWorld Fanatic!
Joined: Feb 2014
Posts: 1,938
Likes: 396
From: Iowa
2025 EQS580
My 2014 S550 is only susceptible to this shifting problem when the weather is cold. Once the engine heats up, the shifting issue is gone. In fact, in the summer, I don't notice this issue at all. And I pretty much always drive it on the ECO mode.
Member
Joined: Sep 2012
Posts: 126
Likes: 22
2009 C350, 2015 S550
I have a very rough shift at times from 5 to 4. It is most notable when I am following behind another vehicle going about 40 miles and hour and we start to go up a incline/hill and the car will kick back to 4th from 5th.
I have tried the transmission reset to no avail. I have also had it in to the dealer twice and they couldnt replicate the issue. I even drove with the shop foreman and of course it did not happen on our short test drive. Very frustrating for an otherwise great car with the exception of the RFTs
I have tried the transmission reset to no avail. I have also had it in to the dealer twice and they couldnt replicate the issue. I even drove with the shop foreman and of course it did not happen on our short test drive. Very frustrating for an otherwise great car with the exception of the RFTs
