GLC Class (X253) Produced 2016-2022

Current Opinios of The 9G

Thread Tools
 
Search this Thread
 
Rate Thread
 
Old Dec 24, 2016 | 11:01 PM
  #1  
RJC's Avatar
RJC
Thread Starter
MBWorld Fanatic!
 
Joined: Feb 2002
Posts: 6,061
Likes: 326
From: 2000 ft over the FL coast in a B-17
Various
Current Opinions of The 9G

What are your current thoughts?

TIA

Last edited by RJC; Dec 25, 2016 at 06:06 PM.
Reply
Old Dec 24, 2016 | 11:34 PM
  #2  
dieseldoc's Avatar
MBWorld Fanatic!
 
Joined: May 2008
Posts: 2,236
Likes: 163
From: DFW
2022 E350 Diamond White Metallic, 2016 GLC300 Dakota Brown Metallic
No issues so far in 10 months. Works well. No complaints.
Reply
Old Dec 25, 2016 | 12:25 AM
  #3  
RJC's Avatar
RJC
Thread Starter
MBWorld Fanatic!
 
Joined: Feb 2002
Posts: 6,061
Likes: 326
From: 2000 ft over the FL coast in a B-17
Various
Originally Posted by dieseldoc
No issues so far in 10 months. Works well. No complaints.
I have this trans in my S coupe when shifting from 3-4 under very mild acceleration I'm getting a rougher shift and feel the torque converter engage just before the shift occurs...no other gears have this problem. Apparently some of the new E class' are having similar issues. Is yours a 4matic?

EDITED

Last edited by RJC; Dec 25, 2016 at 03:07 AM.
Reply
Old Dec 25, 2016 | 11:48 AM
  #4  
FrostyZoob's Avatar
Member
 
Joined: Aug 2015
Posts: 141
Likes: 37
From: Upstate NY, USA
2017 Mercedes-AMG GLC43
Originally Posted by RJC
I have this trans in my S coupe when shifting from 3-4 under very mild acceleration I'm getting a rougher shift and feel the torque converter engage just before the shift occurs...no other gears have this problem. Apparently some of the new E class' are having similar issues. Is yours a 4matic?
Is it possible that there's a dog clutch being used between gears 3 and 4? If so, that might explain the different behavior you're feeling. I assume that the 9G uses at least 1 dog clutch since ZFs 9 speed uses 2 AFAIK.
Reply
Old Dec 25, 2016 | 11:54 AM
  #5  
begone's Avatar
Member
 
Joined: Oct 2004
Posts: 78
Likes: 8
Overall working well. There's a weird shift spot that either downshifts hard or upshifts hard in comfort mode. Not sure exactly where it's at, but it happens when its cold and don't notice anything negative after its warmed up and ran through the gears a few times.
Reply
Old Dec 25, 2016 | 11:59 AM
  #6  
dieseldoc's Avatar
MBWorld Fanatic!
 
Joined: May 2008
Posts: 2,236
Likes: 163
From: DFW
2022 E350 Diamond White Metallic, 2016 GLC300 Dakota Brown Metallic
Originally Posted by RJC
I have this trans in my S coupe when shifting from 3-4 under very mild acceleration I'm getting a rougher shift and feel the torque converter engage just before the shift occurs...no other gears have this problem. Apparently some of the new E class' are having similar issues. Is yours a 4matic?

EDITED
Mine is not a 4matic.
Reply
Old Dec 25, 2016 | 03:12 PM
  #7  
RJC's Avatar
RJC
Thread Starter
MBWorld Fanatic!
 
Joined: Feb 2002
Posts: 6,061
Likes: 326
From: 2000 ft over the FL coast in a B-17
Various
Originally Posted by FrostyZoob
Is it possible that there's a dog clutch being used between gears 3 and 4? If so, that might explain the different behavior you're feeling. I assume that the 9G uses at least 1 dog clutch since ZFs 9 speed uses 2 AFAIK.
i don't know, but it is only under light throttle and anything beyond that the 3-4 shift is smooth and with no torque converter lock up sensation. The 7g had a similar sensation during 2-3 but much less noticeable. The problem like others have mentioned in the w213 forum doesn't always occur but it does about 50% . This appears to be the only flaw and I hope MB gets a software flash out soon.
Reply
Old Dec 25, 2016 | 09:56 PM
  #8  
Penn's Avatar
Senior Member
 
Joined: Sep 2005
Posts: 251
Likes: 36
From: Melbourne, Australia
GLE 350D GLC 250D, Previous vehicles W204, W164, W163, W210 & W202
The 9G is a much better transmission than its predecessor the 7 speed.
It is much smoother on downshifts.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

 Verdad Gallardo
story-1

8 Oddball Mercedes Ideas That Actually Made it to Production

 Verdad Gallardo
story-2

Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

 Verdad Gallardo
story-3

Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

 
story-4

7 Craziest Things AMG Gas Ever Built

 Verdad Gallardo
story-5

New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

 Verdad Gallardo
story-6

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-7

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-8

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-9

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
Old Dec 25, 2016 | 10:25 PM
  #9  
RJC's Avatar
RJC
Thread Starter
MBWorld Fanatic!
 
Joined: Feb 2002
Posts: 6,061
Likes: 326
From: 2000 ft over the FL coast in a B-17
Various
Originally Posted by Penn
The 9G is a much better transmission than its predecessor the 7 speed.
It is much smoother on downshifts.
Agreed.
Have you experienced the 3-4 light throttle shifting issue described above?
Reply
Old Dec 26, 2016 | 10:05 AM
  #10  
guido3's Avatar
Member
 
Joined: Mar 2013
Posts: 213
Likes: 29
From: Pennsylvania
2016 GLC300 4Matic
The big plus with the 9G is that the top 3 gears are overdrive, which, of course, improves mpg markedly. With my 4Matic, shifts are very smooth, and manual downshifts on long hills work flawlessly. I find no fault with it.
Reply
Old Dec 26, 2016 | 10:24 AM
  #11  
dejongj's Avatar
Super Member
 
Joined: Jan 2014
Posts: 761
Likes: 90
From: right to be forgotten
right to be forgotten
Never had the 7G in my GLC.As such can't really compare it.

I had the 7G in my GL and it was absolutely fine, I have the 9G in my GLC43 with some AMG magic applied to it and it is also absolutely fine.
Reply
Old Dec 26, 2016 | 03:14 PM
  #12  
dieseldoc's Avatar
MBWorld Fanatic!
 
Joined: May 2008
Posts: 2,236
Likes: 163
From: DFW
2022 E350 Diamond White Metallic, 2016 GLC300 Dakota Brown Metallic
As stated earlier have 9g in my GLC. No complaints. Have 7g+ in my c class, no issues. The 7g in my GL had occ rough shifting.
Reply
Old Dec 28, 2016 | 07:55 PM
  #13  
Teckno's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2016
Posts: 1,040
Likes: 161
From: Melbourne, Australia
2016 GLC 250d AMG pack, 2017 GLC Coupe 250d AMG pack , 2002 BMW 330Ci convertible, 2021 BMX X1 sD20i
Hi, GLC 250d. 4matic with 9g auto tranny.
Very happy with changes and performance. Sports+ is whiplash territory while comfort mode lopes along. Maybe due to diesel torque, but it does not "hunt" for any gears and copes with steep grades, both up and down hills quite well. Adaptive cruise works very good with 9g as well.
We have travelled 21000km to date.
Reply
Old Dec 29, 2016 | 03:51 AM
  #14  
dejongj's Avatar
Super Member
 
Joined: Jan 2014
Posts: 761
Likes: 90
From: right to be forgotten
right to be forgotten
Originally Posted by Teckno
Hi, GLC 250d. 4matic with 9g auto tranny.
Very happy with changes and performance. Sports+ is whiplash territory while comfort mode lopes along. Maybe due to diesel torque, but it does not "hunt" for any gears and copes with steep grades, both up and down hills quite well. Adaptive cruise works very good with 9g as well.
We have travelled 21000km to date.
i agree that the 9g is a great gearbox, and very well mated to the car. But a 250d whiplash territory? Seriously? I felt like Fred Flintstone driving one; I.e. Get my feet out and push it along as I already had the "pedal to the metal".

It it really makes me wonder what the reference framework is. Mine before the test drive was our big heavy beast the GL 350d which has more oomph with its 7G gearbox.
Reply
Old Dec 29, 2016 | 04:07 AM
  #15  
Teckno's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Mar 2016
Posts: 1,040
Likes: 161
From: Melbourne, Australia
2016 GLC 250d AMG pack, 2017 GLC Coupe 250d AMG pack , 2002 BMW 330Ci convertible, 2021 BMX X1 sD20i
Originally Posted by dejongj
i agree that the 9g is a great gearbox, and very well mated to the car. But a 250d whiplash territory? Seriously? I felt like Fred Flintstone driving one; I.e. Get my feet out and push it along as I already had the "pedal to the metal".

It it really makes me wonder what the reference framework is. Mine before the test drive was our big heavy beast the GL 350d which has more oomph with its 7G gearbox.
Sorry Fred, it's all relevant, as you said. Maybe South of the Equator helps with the axis of the world spinning, down in Oz Land we might benefit from sling shot acceleration as astronauts do ? ; or you need new Roman sandles from Bath ? Lol.
But seriously, yes anything from MB with AMG badging will go very well. The humble 250d Down Under works just fine in Sports +, as we have lower speed limits before Mr Plod steps in with a speed camera.
Enjoy your ride.
Reply

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 


You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 10:29 PM.

story-0
New Mercedes-AMG SUVs Arrive With NEW V8 Engine: 12 Things You Need to Know

Slideshow: Mercedes-AMG's updated GLE 63 S and GLS 63 bring a new-generation V8, subtle design revisions, and familiar supercar-rivaling performance figures.

By Verdad Gallardo | 2026-06-17 12:52:51


VIEW MORE
story-1
8 Oddball Mercedes Ideas That Actually Made it to Production

Slideshow: Mercedes has never been afraid to experiment, and some of its strangest ideas turned out to be surprisingly successful.

By Verdad Gallardo | 2026-06-10 17:43:40


VIEW MORE
story-2
Dubai Tuner Gives the Mercedes G-Class An Entirely New Look

Sideshow: A Middle Eastern tuner has transformed the Mercedes-AMG G 63 into an open-top special, replacing nearly every exterior panel in the process.

By Verdad Gallardo | 2026-06-10 15:29:50


VIEW MORE
story-3
Six Gift Ideas Your AMG Loving Dad or Grad Will Cherish

Slideshow: Six gift ideas your AMG loving dad or grad will cherish.

By | 2026-06-03 17:26:18


VIEW MORE
story-4
7 Craziest Things AMG Gas Ever Built

Slideshow: Sometimes AMG builds fast sedans. Other times, it builds twin-turbo V12 land missiles and six-wheeled off-road monsters.

By Verdad Gallardo | 2026-05-26 17:59:58


VIEW MORE
story-5
New Electric Mercedes-AMG GT 4-Door Coupe Unveiled: 10 Things You Need to Know

Slideshow: Mercedes-AMG's new electric GT 4-Door Coupe trades combustion for software, synthetic noise, and more than 1,100 horsepower.

By Verdad Gallardo | 2026-05-20 20:08:15


VIEW MORE
story-6
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-7
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-8
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-9
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE