Transmission jerk when 2 to 3
Thread Starter
Junior Member
Joined: Oct 2014
Posts: 45
Likes: 1
From: Scottsdale, AZ
2017 E300, 2019 CLS 450
Transmission jerk when 2 to 3
my w213 runs smoothly but when I slow down then push the acceleration pedal again, my car jerks a little bit. seems like gear changes isn't right away when I brake.
Is it the way of Mercedes's transmission or should I call the service?
Is it the way of Mercedes's transmission or should I call the service?
Super Member
Joined: Feb 2006
Posts: 798
Likes: 89
From: Bromley, UK
2017 C43 AMG Saloon
Adjust, your driving style, I'd say. You're catching the car in between gear changes and since what it has learnt about you is different from what it expects, this is the result.
Senior Member
Joined: Jun 2016
Posts: 473
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From: Texas, Northern VA
Porsche Cayman S, Mercedes W213, Nissan Titan, BMW X5, Chevrolet Suburban
How many miles on your Mercedes?
Member
Joined: Mar 2018
Posts: 84
Likes: 3
E250
Sort of related to this, how do you clear what the car has learned about your driving style?. In my previous car, stepping on the brake with the ignition light on for 10 secs before starting the engine would clear the data.
Member
Joined: Jun 2017
Posts: 84
Likes: 8
2013 benz c250
Sounds like you need to have your TCU flashed. I had this problem with my C250 and this was my solution.
MBWorld Fanatic!
Joined: Oct 2014
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From: WI
17 E43; 21 GLS580
On S+ mode downshifts in the lower gears can be jerky, completely normal, they can rarely be slightly less than perfect in other modes. Personally the 9Gtronic is one if not the best transmissions in the market. If you want to try an awful transmission take a CLA for a spin, the MB dual clutch in that car is terrible at slow speeds.
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Member
Joined: Jun 2017
Posts: 84
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2013 benz c250
On S+ mode downshifts in the lower gears can be jerky, completely normal, they can rarely be slightly less than perfect in other modes. Personally the 9Gtronic is one if not the best transmissions in the market. If you want to try an awful transmission take a CLA for a spin, the MB dual clutch in that car is terrible at slow speeds.
The changing of gears ahould not jerk. Even in S+ mode. If the transmission is jerking, either 3 things are going on..
1) like was done to my car when I was having the same problem, the firmware on the TCU needs to be updated
2) The transmission fluid needs to be flushed, nor changed, FLUSHED.
3) the transmission what's connected to the transmiasuin, is defective .
These are the options that need to be looked at.
Unless you have the star diagnostic tool, he'll need to his car to the dealership to have them look at it. The cheapest and first step they take is to check on the version of the firmware for the TCU and they update this if they find it outdated.
To diagnose from home, is suggest buy the transmission replacement kit for fcpeuro.com (because they offer lifetime free replacement, even on normal wear and tear items like this kit) and then change out your transmission fluid and filter
B.
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MBWorld Fanatic!
Joined: Oct 2014
Posts: 4,524
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From: WI
17 E43; 21 GLS580
I don't believe this is correct, because the transmission is controlled by a TCU (Transmission Control Unit\ECU)
The changing of gears ahould not jerk. Even in S+ mode. If the transmission is jerking, either 3 things are going on..
1) like was done to my car when I was having the same problem, the firmware on the TCU needs to be updated
2) The transmission fluid needs to be flushed, nor changed, FLUSHED.
3) the transmission what's connected to the transmiasuin, is defective .
These are the options that need to be looked at.
Unless you have the star diagnostic tool, he'll need to his car to the dealership to have them look at it. The cheapest and first step they take is to check on the version of the firmware for the TCU and they update this if they find it outdated.
To diagnose from home, is suggest buy the transmission replacement kit for fcpeuro.com (because they offer lifetime free replacement, even on normal wear and tear items like this kit) and then change out your transmission fluid and filter
B.
The changing of gears ahould not jerk. Even in S+ mode. If the transmission is jerking, either 3 things are going on..
1) like was done to my car when I was having the same problem, the firmware on the TCU needs to be updated
2) The transmission fluid needs to be flushed, nor changed, FLUSHED.
3) the transmission what's connected to the transmiasuin, is defective .
These are the options that need to be looked at.
Unless you have the star diagnostic tool, he'll need to his car to the dealership to have them look at it. The cheapest and first step they take is to check on the version of the firmware for the TCU and they update this if they find it outdated.
To diagnose from home, is suggest buy the transmission replacement kit for fcpeuro.com (because they offer lifetime free replacement, even on normal wear and tear items like this kit) and then change out your transmission fluid and filter
B.
Super Member
Joined: Sep 2013
Posts: 827
Likes: 202
From: Florida (727)
I am bringing my E300 into the dealership on May 2nd for this exact issue (and some other minor things). I had the same issue with my 2014 Jeep Grand Cherokee and like what others are saying, the transmission firmware (whatever its called) has to be reflashed/updated and that should fix it. I only noticed this whenever I was in comfort or eco mode. It has not happened to me in sport, sport+ or individual.
Super Member
Joined: Sep 2013
Posts: 827
Likes: 202
From: Florida (727)
So I brought my E300 to be checked out for this issue and the service advisor told me they did not notice anything wrong with it (even though I still notice the jerkiness and slowness of it shifting) and they told me that they are not allowed to re-flash the transmission unless an error code comes up. Is this actually true?
With Jeep they would re-flash the transmission all the time whenever I brought my old 2014 Grand Cherokee in to deal with the same problem.
With Jeep they would re-flash the transmission all the time whenever I brought my old 2014 Grand Cherokee in to deal with the same problem.
Member
Joined: Jun 2017
Posts: 84
Likes: 8
2013 benz c250
I read online that the "jerkiness" is caused by a known defect in the transmission contactor plate and Auto Tran valve solenoids. But usually the dealership's policy is to flash the chip.in the contactor plate, first, before swapping out parts. And furthermore, from what i read online, the flashing is not a true permanent fix anyways due to that the hardware is what's defective depending on which generation/version contactor plate you have.
Bottom line is you should have the contactor plate, with the valve solenoids replaced.
I have a 2013 C250 W204 and I also had the jerkiness when I bought the car last year, thank God I have extended warranty on my car because I was able to get my jerkiness resolved under warranty.
B.
Bottom line is you should have the contactor plate, with the valve solenoids replaced.
I have a 2013 C250 W204 and I also had the jerkiness when I bought the car last year, thank God I have extended warranty on my car because I was able to get my jerkiness resolved under warranty.
B.
MBWorld Fanatic!
Joined: May 2015
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From: Miami, FL
2003 CL 600
So I brought my E300 to be checked out for this issue and the service advisor told me they did not notice anything wrong with it (even though I still notice the jerkiness and slowness of it shifting) and they told me that they are not allowed to re-flash the transmission unless an error code comes up. Is this actually true?
With Jeep they would re-flash the transmission all the time whenever I brought my old 2014 Grand Cherokee in to deal with the same problem.
With Jeep they would re-flash the transmission all the time whenever I brought my old 2014 Grand Cherokee in to deal with the same problem.
Member
Joined: Aug 2018
Posts: 157
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2021 E350 Sedan
Similar Transmission Jerk Problem
(2021 E350 W213): I had the same problem (transmission jerk going down hill while downshifting). I took it in and they updated the software and it fixed that problem. Now I have a jerk when accelerating from 2-3 and 3-4 gear. Goes away after a few miles of driving. Anyone have any luck fixing this?
Member
Joined: Jun 2017
Posts: 84
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2013 benz c250
(2021 E350 W213): I had the same problem (transmission jerk going down hill while downshifting). I took it in and they updated the software and it fixed that problem. Now I have a jerk when accelerating from 2-3 and 3-4 gear. Goes away after a few miles of driving. Anyone have any luck fixing this?
you can buy the entire valve body transmission repair kit from fcpeuro.com if you are handy enough to do the repair yourself. There's also a youtube video from legitstreetcars channel where he walks you through the entire repair process, as well.
Member
Joined: Jun 2017
Posts: 84
Likes: 8
2013 benz c250
Well if you have warranty on the car still then, use the warranty! But the dealerships always do software updates first before chnaging out parts. When a vehicle is still under warranty. So if you had the software updated and still have the p4oblem, then they'll have to change out your valve body with a new one. To solve the problem.
Newbie
Joined: May 2023
Posts: 10
Likes: 2
2020 Mercedes E350 w213
2020 E350 Rough Shifting 70k miles
(2021 E350 W213): I had the same problem (transmission jerk going down hill while downshifting). I took it in and they updated the software and it fixed that problem. Now I have a jerk when accelerating from 2-3 and 3-4 gear. Goes away after a few miles of driving. Anyone have any luck fixing this?
Member
Joined: Aug 2018
Posts: 157
Likes: 36
2021 E350 Sedan
My 2021 E350 (per my Jan 23 post above) continued to have transmission jerks, especially when downshifting from 3 to 2.. I had the transmission re-flashed, and the mechanic test drove it and said it was fixed. It also had other annoyances, some options I wanted and didn't have, and too many miles (27000). I traded it in on a different 2021 E350 with 12000 miles and better options (cost me about $5K) and it has the same problem. It's annoying, but I'm living with it. I think it's probably an inherent design flaw. I'm hoping it gets bad enough so that I can complain seriously and get it fixed under warranty. My 2014 E350 (7 speed) was much smoother, but lacked the torque in lower (2-3-4) gears. I liked the 2014 better than the 2021 - the touch controls are terrible.
Last edited by Holtgraver; May 13, 2023 at 12:49 PM.
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Newbie
Joined: May 2023
Posts: 10
Likes: 2
2020 Mercedes E350 w213
My 2021 E350 (per my Jan 23 post above) continued to have transmission jerks, especially when downshifting from 3 to 2.. I had the transmission re-flashed, and the mechanic test drove it and said it was fixed. It also had other annoyances, some options I wanted and didn't have, and too many miles (27000). I traded it in on a different 2021 E350 with 12000 miles and better options (cost me about $5K) and it has the same problem. It's annoying, but I'm living with it. I think it's probably an inherent design flaw. I'm hoping it gets bad enough so that I can complain seriously and get it fixed under warranty. My 2014 E350 (7 speed) was much smoother, but lacked the torque in lower (2-3-4) gears. I liked the 2014 better than the 2021 - the touch controls are terrible.
Newbie
Joined: May 2023
Posts: 10
Likes: 2
2020 Mercedes E350 w213
all they told me was they reset something after the trans fluid exchange and still did the same thing they said drive it for a week and it should fix itself. I put a bout 500 miles still the same issue. And they don’t give appointments making we wait for weeks. I came to another city just dropped it off let’s see what they say and if warranty covers it or not. Will keep y’all updated
