Poor Down Shifting
04-05-2024, 12:03 PM
#101
I went into Mercedes this week and had them address a recall on my transmission control module (NHTSA Recall IS 24V118). Can report the reprograming the transmission control module has resolved my poor down shifting issues. I suggest if you are still having problems, call Mercedes and see if you can qualifies for the upgrade/reprograming.
04-05-2024, 03:04 PM
#102
MBWorld Fanatic!
Join Date: Oct 2009
Location: Colorado
Posts: 4,950
Received 1,637 Likes
on
1,206 Posts
'21 AMG53 wDPP & ARC, 19 GLC300 - Former- 10&14 ML BlueTecs, 20 GLE450 E-ABC, 15 Cayenne D, 17 Macan
I went into Mercedes this week and had them address a recall on my transmission control module (NHTSA Recall IS 24V118). Can report the reprograming the transmission control module has resolved my poor down shifting issues. I suggest if you are still having problems, call Mercedes and see if you can qualifies for the upgrade/reprograming.
Hope your programming lasts.
04-05-2024, 06:16 PM
#103
Senior Member
Join Date: Feb 2013
Location: Southwest Michigan
Posts: 461
Received 212 Likes
on
139 Posts
2021 GLE450
I went into Mercedes this week and had them address a recall on my transmission control module (NHTSA Recall IS 24V118). Can report the reprograming the transmission control module has resolved my poor down shifting issues. I suggest if you are still having problems, call Mercedes and see if you can qualifies for the upgrade/reprograming.
04-08-2024, 08:12 AM
#104
I am trying to get an appointment in place but everything is booked out for well over a month. Ironically when I called my dealership they stated that "we don't recommend you wait to apply the fix" and then promptly advised me that the first appointment they have available is in July...
04-08-2024, 08:47 AM
#105
MBWorld Fanatic!
Join Date: Jul 2003
Location: Lake Oswego, OR
Posts: 6,607
Received 1,186 Likes
on
853 Posts
2020 GLE 450; 2023 BMW M2 Coupe
Transmission recall
My transmission has always operated perfectly. I got the recall notice but a reluctant to have it done because it can only get worse (or stay the same).
04-10-2024, 04:25 PM
#106
Member
On a related note, I don't know if it's possible to evade the update, unless you never again darken the doorway of an M-B dealership with this vehicle. Will the dealership let you "opt out" of a recall? For your sake, I hope so...
Happy Motoring!
The following users liked this post:
GregW / Oregon (04-11-2024)
04-10-2024, 05:15 PM
#107
Senior Member
Isn't this a safety recall related to instance where the engine might stall? Why would you avoid a safety recall? The Mercedes dealer won't let you out the door without applying that recall since it is safety related.
The following users liked this post:
Charcharius (04-10-2024)
04-15-2024, 03:21 PM
#108
Junior Member
April 15, 2024
Glad to know I'm not the only one! Just picked up a new GLC300 4 days ago. (Replaces my 2020 Hyundai Santa Fe). I have to put it in neutral when rolling to a stop sign, because the experience of 15mph to 0mph is annoying! I thought it might be because the car hasn't "broken in" yet, (only 150 miles on it). But apparently it's a design flaw! My wife's GLE350 (2022) comes to a stop with no harshness or jerkiness at all.
Guess I'll take this one to the dealer and hope they don't play dumb. (Good thing I leased. I think there is a way to get out of it within 30 days, if the car is a Lemon.)
Thanks to ALL who provide constructive guidance and advice to this forum in general. You help more people than you know!
Allen in Chicago
Glad to know I'm not the only one! Just picked up a new GLC300 4 days ago. (Replaces my 2020 Hyundai Santa Fe). I have to put it in neutral when rolling to a stop sign, because the experience of 15mph to 0mph is annoying! I thought it might be because the car hasn't "broken in" yet, (only 150 miles on it). But apparently it's a design flaw! My wife's GLE350 (2022) comes to a stop with no harshness or jerkiness at all.
Guess I'll take this one to the dealer and hope they don't play dumb. (Good thing I leased. I think there is a way to get out of it within 30 days, if the car is a Lemon.)
Thanks to ALL who provide constructive guidance and advice to this forum in general. You help more people than you know!
Allen in Chicago
04-15-2024, 03:33 PM
#109
MBWorld Fanatic!
Join Date: Oct 2009
Location: Colorado
Posts: 4,950
Received 1,637 Likes
on
1,206 Posts
'21 AMG53 wDPP & ARC, 19 GLC300 - Former- 10&14 ML BlueTecs, 20 GLE450 E-ABC, 15 Cayenne D, 17 Macan
April 15, 2024
Glad to know I'm not the only one! Just picked up a new GLC300 4 days ago. (Replaces my 2020 Hyundai Santa Fe). I have to put it in neutral when rolling to a stop sign, because the experience of 15mph to 0mph is annoying! I thought it might be because the car hasn't "broken in" yet, (only 150 miles on it). But apparently it's a design flaw! My wife's GLE350 (2022) comes to a stop with no harshness or jerkiness at all.
Guess I'll take this one to the dealer and hope they don't play dumb. (Good thing I leased. I think there is a way to get out of it within 30 days, if the car is a Lemon.)
Thanks to ALL who provide constructive guidance and advice to this forum in general. You help more people than you know!
Allen in Chicago
Glad to know I'm not the only one! Just picked up a new GLC300 4 days ago. (Replaces my 2020 Hyundai Santa Fe). I have to put it in neutral when rolling to a stop sign, because the experience of 15mph to 0mph is annoying! I thought it might be because the car hasn't "broken in" yet, (only 150 miles on it). But apparently it's a design flaw! My wife's GLE350 (2022) comes to a stop with no harshness or jerkiness at all.
Guess I'll take this one to the dealer and hope they don't play dumb. (Good thing I leased. I think there is a way to get out of it within 30 days, if the car is a Lemon.)
Thanks to ALL who provide constructive guidance and advice to this forum in general. You help more people than you know!
Allen in Chicago
That should help.
I like the adaptive learning of the transmission, but I think it remembers aggressive driving over gentle driving.
So if you have to stand on it to merge into traffic, I think it remembers that and thinks you're an aggressive driver. It doesn't seem to notice all those miles you spent in Comfort mode, Hypermiling.
At least that's my experience. I'm kind of checking that theory right now, because I'm being expressly gentle, getting 26 MPG in town with my 53, where I normally get about 18 -19.
I'm trying this for a couple hundred miles.
We'll see if it remembers the saintly me or the devil me when I get back to driving normally (19mpg).
04-16-2024, 07:11 AM
#110
Super Member
I had my transmission reset over a year ago, and it has been working fine ever since. I had MB perform 50K service over the weekend, and they also did software update on the transmission (recall). So far, my only issue is the whiplash I get when accelrating from a full stop. Hoping it calms down in a few days, otherwise it's going right back to dealership.
Last edited by TonyF61; 04-16-2024 at 08:24 AM. Reason: spelling
05-09-2024, 03:20 PM
#111
Had the transmission recall done and I actually feel that they nerfed the power at launch. It feels to me as if I have to press the pedal further than before and the vehicle is sluggish, more so than before.
Don't feel any changes on the downshifting either. I'll give it some more time but this is my initial impression.
P.S. I do have Sport+ active as coded by rj. Wondering whether that needs a re-flash following the transmission update
Don't feel any changes on the downshifting either. I'll give it some more time but this is my initial impression.
P.S. I do have Sport+ active as coded by rj. Wondering whether that needs a re-flash following the transmission update
05-09-2024, 05:30 PM
#112
MBWorld Fanatic!
Join Date: Oct 2009
Location: Colorado
Posts: 4,950
Received 1,637 Likes
on
1,206 Posts
'21 AMG53 wDPP & ARC, 19 GLC300 - Former- 10&14 ML BlueTecs, 20 GLE450 E-ABC, 15 Cayenne D, 17 Macan
I wonder if the recall reset the transmission, and it starts learning from a base Comfort adaptation. And it will "learn" your right foot again.
Interesting. Keep us posted.
Interesting. Keep us posted.
05-12-2024, 07:16 PM
#113
Originally Posted by randsny;[url=tel:8432502
8432502[/url]]I am reaching out to members asking you about GLE's transmission and do you experience rough down shifting. I just picked up my 2021 GE450 and from the start I have noticed rough down shifts from 4 - 3 and 3- 2. Most of the time it is a little jerk or stutter, however on many occasions the whole car shutters to the point the passengers are asking me if there is a problem. I am trying to work with the Mercedes service department; however, their problem is, there are no GLE350 or GLE450's on their lot that we can compare to. My wife has a 2018 GLC300 and you can't even feel the downshifts. Since both are 9 speed gearboxes, I would suspect my new 450 should feel the same. I am looking for some help from the community on how your GLE's downshift, and use that to press Mecedes to dig deeper into the issue vs. trying to brush me off, with it seem to work normally.
Please help!!!
Please help!!!
IMO, these trans aren’t the best and can unexpectedly “clunk” at different shift points. Even the new one in my 63 will clunk at times too.
05-12-2024, 08:31 PM
#114
Super Member
You must mean Southeast Chicago, or East Gary.
I haven’t read every post in the thread, but I will. I am specifically looking for what harm improper downshifting does to the transmission and the rest of the drivetrain.
Last edited by MB2timer; 05-12-2024 at 08:46 PM. Reason: + , . .
05-13-2024, 12:44 AM
#115
Pleasant surprise
I went ahead and had the transmission recall software upgrade performed, and to my pleasant surprise, it resolved the issue of rough downshifting. In a rare instance of a positive outcome, and considering the 2.5 hours it took the dealer, it appears they must have done a complete software reinstallation. As a result, the dash cam's auto-start feature, which I had been told was not available in USA, is now available.
The following 2 users liked this post by kvelez:
AllenChicago (05-21-2024),
IconBycon (06-05-2024)
The following users liked this post:
MB2timer (05-14-2024)
05-14-2024, 06:43 AM
#117
Super Member
Had the transmission recall done and I actually feel that they nerfed the power at launch. It feels to me as if I have to press the pedal further than before and the vehicle is sluggish, more so than before.
Don't feel any changes on the downshifting either. I'll give it some more time but this is my initial impression.
P.S. I do have Sport+ active as coded by rj. Wondering whether that needs a re-flash following the transmission update
Don't feel any changes on the downshifting either. I'll give it some more time but this is my initial impression.
P.S. I do have Sport+ active as coded by rj. Wondering whether that needs a re-flash following the transmission update
Yes, very "tame". Although, after sitting in traffic last night for almost 2 hours, I finally got to step on the gas, and it took off like a rocket. I was shocked, to say the least.
05-20-2024, 06:30 AM
#118
I think I might have a project on my hands now, having to deal with MB and potentially a warranty claim. The downshifting is way too harsh at this point and following the recall update, the transmission kicks down big time when putting the car in park or drive.
There is a loud "clunk" and a substantial kick when shifting into park about half the time. The vehicle lunges forward an inch or so when I put it in park or shift from park to drive. Moreover I hear a screeching sound when it downshifts from 2 to 1.
There is a loud "clunk" and a substantial kick when shifting into park about half the time. The vehicle lunges forward an inch or so when I put it in park or shift from park to drive. Moreover I hear a screeching sound when it downshifts from 2 to 1.
