GLC 63 very jerky in shifting
Member
Joined: Jan 2019
Posts: 76
Likes: 4
.
I should have read about the jerking trans before I bought the car! During the test drive I did not encounter a single stop light. I did notice that the trans was not smooth on take off but the car had 35 miles on it.
I am already disgusted. The problem is worse in C mode. The problem is the shift from 1st to 2nd on gentle take off for what must be ECO reasons the trans hurries the up shift after only a few feet and then jerks into gear. It would simple if as with other M-B's, the trans would start in second gear while in C mode but you can't do it! I have a 2015 Hellcat and a 2018 Jeep Trackhawk (hellcat cat motor) both can be eased away from a traffic light without jerking like a teenager learning to use a clutch for the first time. Both pick the correct gear at the right time. I would have thought that M-B would have a fix like reflash for a second gear start.
I hope this is not the start of a new night mare. I bought this car to replace my GLA AMG 45 which had a horrible turbo lag and made city stop and go driving a royal pain. The GLC AMG does not have the turbo lag which is why I bought it for every day stop and go driving. But now I have that jerk up shift from 1 to 2 on slow take offs. Had I known this was a problem that M-B has not addressed I would not have purchased the car.
So put me down as VERY unhappy.
I am already disgusted. The problem is worse in C mode. The problem is the shift from 1st to 2nd on gentle take off for what must be ECO reasons the trans hurries the up shift after only a few feet and then jerks into gear. It would simple if as with other M-B's, the trans would start in second gear while in C mode but you can't do it! I have a 2015 Hellcat and a 2018 Jeep Trackhawk (hellcat cat motor) both can be eased away from a traffic light without jerking like a teenager learning to use a clutch for the first time. Both pick the correct gear at the right time. I would have thought that M-B would have a fix like reflash for a second gear start.
I hope this is not the start of a new night mare. I bought this car to replace my GLA AMG 45 which had a horrible turbo lag and made city stop and go driving a royal pain. The GLC AMG does not have the turbo lag which is why I bought it for every day stop and go driving. But now I have that jerk up shift from 1 to 2 on slow take offs. Had I known this was a problem that M-B has not addressed I would not have purchased the car.
So put me down as VERY unhappy.
I think AMG should update the transmission. This should not be difficult to do on their end.
I had listed a multitude of other problems... such as unbelievably uncomfortable seats, sunglasses holder that doesn't fit normal sized sunglasses, the annoying a$$ stop/start feature you can't turn off, etc.
Last edited by MBenz111; Jul 1, 2019 at 12:09 PM.
Member
Joined: May 2015
Posts: 168
Likes: 25
From: ?
nothing
I should have read about the jerking trans before I bought the car! During the test drive I did not encounter a single stop light. I did notice that the trans was not smooth on take off but the car had 35 miles on it.
I am already disgusted. The problem is worse in C mode. The problem is the shift from 1st to 2nd on gentle take off for what must be ECO reasons the trans hurries the up shift after only a few feet and then jerks into gear. It would simple if as with other M-B's, the trans would start in second gear while in C mode but you can't do it! I have a 2015 Hellcat and a 2018 Jeep Trackhawk (hellcat cat motor) both can be eased away from a traffic light without jerking like a teenager learning to use a clutch for the first time. Both pick the correct gear at the right time. I would have thought that M-B would have a fix like reflash for a second gear start.
I hope this is not the start of a new night mare. I bought this car to replace my GLA AMG 45 which had a horrible turbo lag and made city stop and go driving a royal pain. The GLC AMG does not have the turbo lag which is why I bought it for every day stop and go driving. But now I have that jerk up shift from 1 to 2 on slow take offs. Had I known this was a problem that M-B has not addressed I would not have purchased the car.
So put me down as VERY unhappy.
I am already disgusted. The problem is worse in C mode. The problem is the shift from 1st to 2nd on gentle take off for what must be ECO reasons the trans hurries the up shift after only a few feet and then jerks into gear. It would simple if as with other M-B's, the trans would start in second gear while in C mode but you can't do it! I have a 2015 Hellcat and a 2018 Jeep Trackhawk (hellcat cat motor) both can be eased away from a traffic light without jerking like a teenager learning to use a clutch for the first time. Both pick the correct gear at the right time. I would have thought that M-B would have a fix like reflash for a second gear start.
I hope this is not the start of a new night mare. I bought this car to replace my GLA AMG 45 which had a horrible turbo lag and made city stop and go driving a royal pain. The GLC AMG does not have the turbo lag which is why I bought it for every day stop and go driving. But now I have that jerk up shift from 1 to 2 on slow take offs. Had I known this was a problem that M-B has not addressed I would not have purchased the car.
So put me down as VERY unhappy.
Observations
1. In manual mode (1st gear), when I start to feel the car perform the bronco thing, I let go of the pedal completely and feels like the car is catching itself like it just shifted, but it's still in 1st gear. I can't explain what is happening at this very moment. After I feel the car "catching" itself, I press the pedal and acceleration is perfect. Weird, right?
2. From a stop, hard press past the touchy throttle the car behaves normally.
3. Cold starts makes this problem a lot more problematic, regardless of outside temps
4. Going 10-15mph in 3rd or 4th gear in automatic mode, I can quickly press the pedal like an on/off switch and get the motor to rev to make some exhaust sound,but the car doesn't actually accelerate. Tied to the part-throttle issue?
Newbie
Joined: May 2019
Posts: 9
Likes: 0
From: Christchurch, New Zealand
2018 Mercedes GLC63S
To be honest between the jerking gears and tyre skipping i had my GLC63 for a total of 6.5 months and i'm 2 weeks into my SQ7 and i am in love with the smooth, quiet drive. Plus we needed a car with a tow bar. I really miss the noise of the GLC but i don't miss the issues and high fuel bills. Enjoy yours guys and i truly hope they get a fix for the transmission issue.
Super Member
Joined: Feb 2017
Posts: 703
Likes: 136
From: Northeast, USA
GLC43, GTI, X3, Mazda3
I should have read about the jerking trans before I bought the car! During the test drive I did not encounter a single stop light. I did notice that the trans was not smooth on take off but the car had 35 miles on it.
I am already disgusted. The problem is worse in C mode. The problem is the shift from 1st to 2nd on gentle take off for what must be ECO reasons the trans hurries the up shift after only a few feet and then jerks into gear. It would simple if as with other M-B's, the trans would start in second gear while in C mode but you can't do it! I have a 2015 Hellcat and a 2018 Jeep Trackhawk (hellcat cat motor) both can be eased away from a traffic light without jerking like a teenager learning to use a clutch for the first time. Both pick the correct gear at the right time. I would have thought that M-B would have a fix like reflash for a second gear start.
I hope this is not the start of a new night mare. I bought this car to replace my GLA AMG 45 which had a horrible turbo lag and made city stop and go driving a royal pain. The GLC AMG does not have the turbo lag which is why I bought it for every day stop and go driving. But now I have that jerk up shift from 1 to 2 on slow take offs. Had I known this was a problem that M-B has not addressed I would not have purchased the car.
So put me down as VERY unhappy.
I am already disgusted. The problem is worse in C mode. The problem is the shift from 1st to 2nd on gentle take off for what must be ECO reasons the trans hurries the up shift after only a few feet and then jerks into gear. It would simple if as with other M-B's, the trans would start in second gear while in C mode but you can't do it! I have a 2015 Hellcat and a 2018 Jeep Trackhawk (hellcat cat motor) both can be eased away from a traffic light without jerking like a teenager learning to use a clutch for the first time. Both pick the correct gear at the right time. I would have thought that M-B would have a fix like reflash for a second gear start.
I hope this is not the start of a new night mare. I bought this car to replace my GLA AMG 45 which had a horrible turbo lag and made city stop and go driving a royal pain. The GLC AMG does not have the turbo lag which is why I bought it for every day stop and go driving. But now I have that jerk up shift from 1 to 2 on slow take offs. Had I known this was a problem that M-B has not addressed I would not have purchased the car.
So put me down as VERY unhappy.
starts in 2nd gear when in C mode. Guess I'm surprised the 63 doesn't, as well...for EPA mileage reasons alone. Also, watch your transmission temps and see if that changes anything for you. You can change the center screen in the gauge cluster to "AMG mode" and it will give a graphic of engine and trans temps. I know my 43 is not the smoothest shifter when cold, but once up to temp, it pretty much butter unless in S+ mode.
Senior Member
Joined: Nov 2018
Posts: 338
Likes: 73
GLC 63 AMG, Trackhawk, X3M
I drove in sport mode all the time. No issues of jerkiness. Comfort mode tries to stay lowest rpm possible so it will rapid shift through 3rd gear before you’re at 25mph pretty sure that is what causes the jerkiness and no throttle response. Yes I’m Sport+ the throttle response is maximized so please people learn to feather accordingly
Junior Member
Joined: Mar 2018
Posts: 34
Likes: 1
glc43 amg(sold) 2015 Mustang GT 2019 Volveo Inscription t6
Got rid of my GLC43 a couple months ago for these same reasons and a ton of other build problems that were never resolved. Honestly, It is the only car I ever owned that I have not missed for one minute. Good riddance.
Member
Joined: May 2015
Posts: 168
Likes: 25
From: ?
nothing
I drove in sport mode all the time. No issues of jerkiness. Comfort mode tries to stay lowest rpm possible so it will rapid shift through 3rd gear before you’re at 25mph pretty sure that is what causes the jerkiness and no throttle response. Yes I’m Sport+ the throttle response is maximized so please people learn to feather accordingly
Last edited by shoe3k; Jul 3, 2019 at 09:40 PM.
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Junior Member
Joined: Jun 2019
Posts: 30
Likes: 4
From: Europe
GLC 63S AMG
Guys I don't understand what is this topic about. I have 2018 GLC 63S and car is smooth as butter. I think that you are just wrongly using different modes.
Car is great, you have to change the way you drive it.
Car is great, you have to change the way you drive it.
Last edited by Koki_999; Jul 4, 2019 at 05:17 PM.
Member
Joined: Mar 2019
Posts: 222
Likes: 22
From: Montreal
GLC63 AMG S Coupe
It happened in S+ yesterday.
My wife's comment was “don’t you know how to drive”
I have ave driven many high performance car over the years and never had this problem.
Also dealer tells me this is normal.
What a BS.
Member
Joined: May 2015
Posts: 168
Likes: 25
From: ?
nothing
Your car may be working just fine. There are cars, including mine, which are behaving strangely when accelerating from a stop. It's not really the driving modes but sometimes it feels like the car is getting stuck and can't decide what it wants to do. It creates a bronco effect where it lurches back and forth. Read my prior post above where I went into detail.
Junior Member
Joined: Jun 2019
Posts: 30
Likes: 4
From: Europe
GLC 63S AMG
If you drive my car you would notice the problem right a way.
It happened in S+ yesterday.
My wife's comment was “don’t you know how to drive”
I have ave driven many high performance car over the years and never had this problem.
Also dealer tells me this is normal.
What a BS.
It happened in S+ yesterday.
My wife's comment was “don’t you know how to drive”
I have ave driven many high performance car over the years and never had this problem.
Also dealer tells me this is normal.
What a BS.
But if you were driving with your wife, you were probably somewhere around may be in the city? You were not probably racing on the circuit right?
If you are driving in that mode in these areas, like city (slow cornes, traffic jam etc) it could get jerky as this mode is not set up for it - pedal is very sensitive, transmission is holding gears longest as possible and etc.
Try to use Comfort or S and you can't have that problem... that is how am I doing it and all fine...
S+ is made for racing / circuit / outside of the city so try to use it differently...
If you still have problem also in C and S than you have to take it to the dealer!
Last edited by Koki_999; Jul 5, 2019 at 03:40 AM.
Member
Joined: Mar 2019
Posts: 222
Likes: 22
From: Montreal
GLC63 AMG S Coupe
Don't take me bad, I wrote it in good manner.
But if you were driving with your wife, you were probably somewhere around may be in the city? You were not probably racing on the circuit right?
If you are driving in that mode in these areas, like city (slow cornes, traffic jam etc) it could get jerky as this mode is not set up for it - pedal is very sensitive, transmission is holding gears longest as possible and etc.
Try to use Comfort or S and you can't have that problem... that is how am I doing it and all fine...
S+ is made for racing / circuit / outside of the city so try to use it differently...
If you still have problem also in C and S than you have to take it to the dealer!
But if you were driving with your wife, you were probably somewhere around may be in the city? You were not probably racing on the circuit right?
If you are driving in that mode in these areas, like city (slow cornes, traffic jam etc) it could get jerky as this mode is not set up for it - pedal is very sensitive, transmission is holding gears longest as possible and etc.
Try to use Comfort or S and you can't have that problem... that is how am I doing it and all fine...
S+ is made for racing / circuit / outside of the city so try to use it differently...
If you still have problem also in C and S than you have to take it to the dealer!
I did take it to the dealer and the replay was that the car is OK and is running as per manufacturing specs.
I guess you are just lucky that you don’t have the problem.
The dealer has provided me with a loaner GLC43 and the shifting was as smooth as butter.
Junior Member
Joined: Jun 2019
Posts: 30
Likes: 4
From: Europe
GLC 63S AMG
I do have the jerking problem in C and S modes as well.
I did take it to the dealer and the replay was that the car is OK and is running as per manufacturing specs.
I guess you are just lucky that you don’t have the problem.
The dealer has provided me with a loaner GLC43 and the shifting was as smooth as butter.
I did take it to the dealer and the replay was that the car is OK and is running as per manufacturing specs.
I guess you are just lucky that you don’t have the problem.
The dealer has provided me with a loaner GLC43 and the shifting was as smooth as butter.
In that case, I would visit different dealer asking him for some software re-flash or transmision and clutch points re-learn. Looks like you just need to re-tune it. It is nothing mechanical, it is just software issue! They must be able to do that.
Last edited by Koki_999; Jul 5, 2019 at 07:57 AM.
Member
Joined: Mar 2019
Posts: 222
Likes: 22
From: Montreal
GLC63 AMG S Coupe
I will take your advice and visit a different dealer.
Thanks for your suggestion.
Junior Member
Joined: Jun 2019
Posts: 30
Likes: 4
From: Europe
GLC 63S AMG
YW! And hope that you guys will find some solution. I would say, that it doesn't matter if you have latest or older version of the software. They must be able to run some set up, where they can play with clutch / clutch points and transmission.
I don't know how is it with MB, but with my previous car GTR, it was possible. After I swapped transmision because of failure, we did many of these tunes to get it working smooth and proper. If the clutch points were not set up correctly, car was doing similar thing as you are talking about.
Check this fyi
https://www.google.com/amp/s/www.gtr.co.uk/forum/481610-clutch-learns.html%3famp=1
https://www.gtrlife.com/forums/topic...utch-re-learn/
Last edited by Koki_999; Jul 5, 2019 at 10:08 AM.
Member
Joined: Mar 2019
Posts: 222
Likes: 22
From: Montreal
GLC63 AMG S Coupe
Newbie
Joined: Jul 2019
Posts: 4
Likes: 0
GLC63
I have a 2019 GLC63 and a 2018 C63s. The C63s runs like a dream but the GLC63 jerks all the time when the car is cold and when you park it for a few hours. Took it to the dealer a few times and they say that there is nothing wrong with the car and that is how they run!!! You must be kidding me. This is a $88,000 car and runs like crap. No one else in my family dares driving the car due to its unpredictable jerkiness. I don't understand why the car doesn't start in 2nd gear in the Comfort mode. This 9 speed transmission seems to be so poorly made. Even the head of the mechanic shop in the MB dealership was telling me that these cars run very rough and people are better off buying 550 or 560 engines as they are very powerful and smooth. Now I am stuck with a 4 year lease on a car which jerks all the time 
Member
Joined: Jan 2019
Posts: 76
Likes: 4
.
I have a 2019 GLC63 and a 2018 C63s. The C63s runs like a dream but the GLC63 jerks all the time when the car is cold and when you park it for a few hours. Took it to the dealer a few times and they say that there is nothing wrong with the car and that is how they run!!! You must be kidding me. This is a $88,000 car and runs like crap. No one else in my family dares driving the car due to its unpredictable jerkiness. I don't understand why the car doesn't start in 2nd gear in the Comfort mode. This 9 speed transmission seems to be so poorly made. Even the head of the mechanic shop in the MB dealership was telling me that these cars run very rough and people are better off buying 550 or 560 engines as they are very powerful and smooth. Now I am stuck with a 4 year lease on a car which jerks all the time
I dont know what the hype about Mercedes is. most of their cars are atrocious on a comfort and engineering level. go drive any basic Ford and the comfort level takes a dump on an S class. i drove a loaner E class the other day and the transmission was NOT smooth and the car wasn't all that comfortable either.
I understand AMG is supposed to make fast cars but holy ***** at the seats ... ungodly uncomfortable. theres virtually no padding in my car. bottom of the seat as well as the portion for your back.
and I'm still wondering if anyone has been able to use the sun glasses holder because i can't fit anything in it.
Member
Joined: May 2015
Posts: 168
Likes: 25
From: ?
nothing
I have a 2019 GLC63 and a 2018 C63s. The C63s runs like a dream but the GLC63 jerks all the time when the car is cold and when you park it for a few hours. Took it to the dealer a few times and they say that there is nothing wrong with the car and that is how they run!!! You must be kidding me. This is a $88,000 car and runs like crap. No one else in my family dares driving the car due to its unpredictable jerkiness. I don't understand why the car doesn't start in 2nd gear in the Comfort mode. This 9 speed transmission seems to be so poorly made. Even the head of the mechanic shop in the MB dealership was telling me that these cars run very rough and people are better off buying 550 or 560 engines as they are very powerful and smooth. Now I am stuck with a 4 year lease on a car which jerks all the time
Junior Member
Joined: Jul 2019
Posts: 20
Likes: 6
From: Yakima, WA
AMG GLC 43
I bought my 43... I'm about 100% sure I'm going to sell it at the end of the year.
I dont know what the hype about Mercedes is. most of their cars are atrocious on a comfort and engineering level. go drive any basic Ford and the comfort level takes a dump on an S class. i drove a loaner E class the other day and the transmission was NOT smooth and the car wasn't all that comfortable either.
I understand AMG is supposed to make fast cars but holy ***** at the seats ... ungodly uncomfortable. theres virtually no padding in my car. bottom of the seat as well as the portion for your back.
and I'm still wondering if anyone has been able to use the sun glasses holder because i can't fit anything in it.
I dont know what the hype about Mercedes is. most of their cars are atrocious on a comfort and engineering level. go drive any basic Ford and the comfort level takes a dump on an S class. i drove a loaner E class the other day and the transmission was NOT smooth and the car wasn't all that comfortable either.
I understand AMG is supposed to make fast cars but holy ***** at the seats ... ungodly uncomfortable. theres virtually no padding in my car. bottom of the seat as well as the portion for your back.
and I'm still wondering if anyone has been able to use the sun glasses holder because i can't fit anything in it.
This is hilarious and just goes to show that to each their own. My GLC43 is by far the nicest car I've ever purchased. Fit and finish on the interior are excellent. No rattles, Engine and trans are smooth. Suspension is firm but that's expected since it's the sport model of the GLC. I have a few annoyances like seat memory not being tied to keys, but I'm otherwise very happy with this thing. I read posts like the above quoted and find it funny how different some people feel about a car. I have no issue with others having a different opinion. Just pointing out how varied the opinions are is all.
Regarding the sunglass holder, all three pairs of my MauiJims fit and my one pair of Randolph aviators as well. Maybe you're wearing huge Paris Hilton style shades?
Newbie
Joined: Jul 2019
Posts: 4
Likes: 0
GLC63
I have noticed that as soon as the car starts jerking if you manually shift up the jerking stops immediately. The problem is that if you are turning the shift paddles which are hooked to the steering wheel are not easily accessible.
Newbie
Joined: Jul 2019
Posts: 4
Likes: 0
GLC63
The AMG sport seats are kind of made for small people (tight and narrow) and this car being a German car and most Germans being big people I don't understand that part I have AMG sport seats which look great in my C63s and normal seats in my GLC63. The normal seats are by far more comfortable than the AMG sport seats. If you put a few hours of nonstop driving on the sport seats you will start feeling the pain. As it comes to rattling almost all Benzes I have owned (AMG or non-AMG) rattle and make annoying noises. Comparing a MB to a Ford is a bit of stretch though
I have AMG sport seats which look great in my C63s and normal seats in my GLC63. The normal seats are by far more comfortable than the AMG sport seats. If you put a few hours of nonstop driving on the sport seats you will start feeling the pain. As it comes to rattling almost all Benzes I have owned (AMG or non-AMG) rattle and make annoying noises. Comparing a MB to a Ford is a bit of stretch though
