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I know there have been other threads on this topic, but I have a few questions I haven't found answers to.
My 2024 GLS 450 unpleasantly suddenly jerks when I am stopping at intersection. Particularly noticeable when downshifting from 5th to 4th, 4th to 3rd. First question is this common on all X167's? I know there was a 'refresh' for 2024, so I am wondering if the jerkiness only happens on those models.
Some on this forum have reported improvement of the downshifting jerkiness with a software update. If the software update helps, why isn't it offered by the dealership when taking the 450 in for scheduled services?
Does this downshifting occur to produce regenerative 'braking' for the mild hybrid battery? The jerkiness kind of wrecks the otherwise 'smooth' driving experience.
I haven't requested the software update but will inquire next time I take the car in for service.
I know there have been other threads on this topic, but I have a few questions I haven't found answers to.
My 2024 GLS 450 unpleasantly suddenly jerks when I am stopping at intersection. Particularly noticeable when downshifting from 5th to 4th, 4th to 3rd. First question is this common on all X167's? I know there was a 'refresh' for 2024, so I am wondering if the jerkiness only happens on those models.
Some on this forum have reported improvement of the downshifting jerkiness with a software update. If the software update helps, why isn't it offered by the dealership when taking the 450 in for scheduled services?
Does this downshifting occur to produce regenerative 'braking' for the mild hybrid battery? The jerkiness kind of wrecks the otherwise 'smooth' driving experience.
I haven't requested the software update but will inquire next time I take the car in for service.
Thanks for any information you all have to offer.
MY 2024 GLS 450... BOUGHT IT ON OCTOBER.....
RIGHT NOW ITS BEEN SINCE LAST WEEK ON THE DEALER... BEING CHECKED.
THEY SAID THAT MB GERMANY TOLD THEM TO DO A SOFTWARE UPDATE. I will tell you more about it in 2 hours.
I know there have been other threads on this topic, but I have a few questions I haven't found answers to.
My 2024 GLS 450 unpleasantly suddenly jerks when I am stopping at intersection. Particularly noticeable when downshifting from 5th to 4th, 4th to 3rd. First question is this common on all X167's? I know there was a 'refresh' for 2024, so I am wondering if the jerkiness only happens on those models.
Some on this forum have reported improvement of the downshifting jerkiness with a software update. If the software update helps, why isn't it offered by the dealership when taking the 450 in for scheduled services?
Does this downshifting occur to produce regenerative 'braking' for the mild hybrid battery? The jerkiness kind of wrecks the otherwise 'smooth' driving experience.
I haven't requested the software update but will inquire next time I take the car in for service.
Thanks for any information you all have to offer.
Yes the software update (if you are talking about the same one mentioned for the GLE is available):
Before that, forum members recommend standstill adaptations.
MY 2024 GLS 450... BOUGHT IT ON OCTOBER.....
RIGHT NOW ITS BEEN SINCE LAST WEEK ON THE DEALER... BEING CHECKED.
THEY SAID THAT MB GERMANY TOLD THEM TO DO A SOFTWARE UPDATE. I will tell you more about it in 2 hours.
Had my 2022 in for service a few weeks ago, they applied a software update to the VGS (Transmission Control Unit) and did standstill adaptations at 40 and 70 degrees. The issue is MUCH improved afterwards.
Had my 2022 in for service a few weeks ago, they applied a software update to the VGS (Transmission Control Unit) and did standstill adaptations at 40 and 70 degrees. The issue is MUCH improved afterwards.
That is awesome, do you mind posting the work order and/or the TSB?
Update... yesterday... dealer.. called... to check the car.
they where told by MB... to do a Transfercase update...
while the shift 5 to 4.. while slowwing down was less... jerky... it was still felt in the cabin... no other shift was felt. THE car also had a weird... acceleration strong and scary jerkiness... whilee in fifth or 6th gear... you press down the gas pedal... and does a downshift to 3rd.. the wholee car jerks and you feeel...how hard the shift eneterz... zero smoothnes...
so much soo everyone here in Panama is scratching their heads... the general manager...the chief of mechanics... the warranty manager...
its the first X167 GLS... here with such conditions....
They told us that now after beeing drive the would do a hot.... TCU UPDATE/ RECALLIBRATION.
flash foward today.
Dealer called... to check the car....
The downshift like i said before... 5th to 4th...still present the jerkiness....
It becomess a lot less present if the put the car on 'sport' mode....
The acceleration from 5th to 3rd... still present...
still scratching their heads...
They have already donee... 2 TCU recalibrations...and not much change.... and a transfercase recallibration.
Tommorrow i will be able to tell more..
for anyone who wants to know... the care has.. 10,000 kms.... or around 6,000 miles....
Update... yesterday... dealer.. called... to check the car.
they where told by MB... to do a Transfercase update...
while the shift 5 to 4.. while slowwing down was less... jerky... it was still felt in the cabin... no other shift was felt. THE car also had a weird... acceleration strong and scary jerkiness... whilee in fifth or 6th gear... you press down the gas pedal... and does a downshift to 3rd.. the wholee car jerks and you feeel...how hard the shift eneterz... zero smoothnes...
so much soo everyone here in Panama is scratching their heads... the general manager...the chief of mechanics... the warranty manager...
its the first X167 GLS... here with such conditions....
They told us that now after beeing drive the would do a hot.... TCU UPDATE/ RECALLIBRATION.
flash foward today.
Dealer called... to check the car....
The downshift like i said before... 5th to 4th...still present the jerkiness....
It becomess a lot less present if the put the car on 'sport' mode....
The acceleration from 5th to 3rd... still present...
still scratching their heads...
They have already donee... 2 TCU recalibrations...and not much change.... and a transfercase recallibration.
Tommorrow i will be able to tell more..
for anyone who wants to know... the care has.. 10,000 kms.... or around 6,000 miles....
Thanks for posting but does not apply to the GLS though.
I read the document as applying to GLE 53, gle450, and GLS 450.
But only the 2024 model year.
I think those are all the torque converter transmissions.
I read the document as applying to GLE 53, gle450, and GLS 450.
But only the 2024 model year.
I think those are all the torque converter transmissions.
Uh oh, what is wrong with me today. I read the image again and did notice it mentioned GLS, I don't know how I didn't see GLS in the third line.
Hello Everyone, thank you to everyone who responded. I took the GLS into the dealer today and showed them Ronroneg's screenshot for the software update. Waited there for an hour and a half and was then told they did that software upgrade. Service advisor told me the car would be 'less jerky' on the downshifts and that it would be 'better', but not 'perfect'. He also told me the improvement might not last as the car is always 'adjusting to the way you drive it'.
Driving it, yes, great improvement when stopping. Still feel it downshifting but no chance of whiplash like before.
Still disappointed that MB couldn't have figured out a 'smoother' way of downshifting. Kind of want my 2018 GLS back.
this was the message from the dealer today:Good morning, Mr. Angel, nice to meet you.
I apologize in advance for any inconvenience this may cause.
We are currently performing a complete reconfiguration of the transfer unit. This procedure is somewhat lengthy, so we should be completing it tomorrow morning.
Once the procedure is complete, we will perform tests to verify its operation.
I dont understand how come.... from the jerky transmission shifts they have gone to the trnasfercase??....
thats the second (2) reconfiguration they have done to the transfercase.... 2 to the TCU (transmission).
what they said... was less jerky... i told themm... i feel it ... they said.... but less.... you felt it less...
Hello Everyone, thank you to everyone who responded. I took the GLS into the dealer today and showed them Ronroneg's screenshot for the software update. Waited there for an hour and a half and was then told they did that software upgrade. Service advisor told me the car would be 'less jerky' on the downshifts and that it would be 'better', but not 'perfect'. He also told me the improvement might not last as the car is always 'adjusting to the way you drive it'.
Driving it, yes, great improvement when stopping. Still feel it downshifting but no chance of whiplash like before.
Still disappointed that MB couldn't have figured out a 'smoother' way of downshifting. Kind of want my 2018 GLS back.
Did you try "stand still" adaptation yet forgot if I asked you or did I miss it?
this was the message from the dealer today:Good morning, Mr. Angel, nice to meet you.
I apologize in advance for any inconvenience this may cause.
We are currently performing a complete reconfiguration of the transfer unit. This procedure is somewhat lengthy, so we should be completing it tomorrow morning.
Once the procedure is complete, we will perform tests to verify its operation.
I dont understand how come.... from the jerky transmission shifts they have gone to the trnasfercase??....
thats the second (2) reconfiguration they have done to the transfercase.... 2 to the TCU (transmission).
what they said... was less jerky... i told themm... i feel it ... they said.... but less.... you felt it less...
Strange.... Transfer unit as the torque converter right? Since it theoretically transfers torque.,.. It doesn't have to be transfer case, I would say ask for clarification.
Strange.... Transfer unit as the torque converter right? Since it theoretically transfers torque.,.. It doesn't have to be transfer case, I would say ask for clarification.
My GLS Has had 3 conditions.... the first on... while stopping... it would jerk really really strong... from 3rd to 2nd.... very very strong...
the second one... is also while slowing down.... 5th to 4th gear... jerkiness all around....
and the 3rd....
Whilee driving... iin fifth or sixth gear... and you accelerate... it downshift to 3rd... that crap... make the car jump... and it feells like the shift doesnt engage... in a good way... and you can hear it.
I dont understand why... they have done what theyve done until now.... tommorrow... Ill be going theere to understand... why does reconfigurations.
btw...
the dealer in Panama , said that they did not hsve knowledge of the shifting problems of the transmission.. like seen before in the document I sended.
My GLS Has had 3 conditions.... the first on... while stopping... it would jerk really really strong... from 3rd to 2nd.... very very strong...
the second one... is also while slowing down.... 5th to 4th gear... jerkiness all around....
and the 3rd....
Whilee driving... iin fifth or sixth gear... and you accelerate... it downshift to 3rd... that crap... make the car jump... and it feells like the shift doesnt engage... in a good way... and you can hear it.
I dont understand why... they have done what theyve done until now.... tommorrow... Ill be going theere to understand... why does reconfigurations.
btw...
the dealer in Panama , said that they did not hsve knowledge of the shifting problems of the transmission.. like seen before in the document I sended.
How is your brake input, how is the behaviour in the following brake applications: 1. Emergency stop so full brake 2. Soft braking (tap feathering) to a riding-stop 3. Moderate braking normal braking to stop.
Need to get them to try that standstill adaptation. This is important.
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