GLC43 jerking when coming to a stop
Member
Joined: Aug 2018
Posts: 105
Likes: 33
2018 AMG GLC 43
Mine jerks a little before I come to complete stop. Its definitely not as smooth as the macan I test drove.
But it is NOT something that annoys me. Its just a quirky performance transmission. The rest of the car is badass
But it is NOT something that annoys me. Its just a quirky performance transmission. The rest of the car is badass
Member
Joined: Jan 2019
Posts: 76
Likes: 4
.
I had this same problem from day one on my 2017 GLC43. Two dealer tear downs and converstions with Germany(or so they said) resolved nothing. An inherent flaw in that transmission. Always felt to me like a torque converter was locked up and was torque braking, then letting go. Felt that was sometime at very low speed like in a parking lot. Drove me and the wife nuts enough(along with a ton of other issues) we dumped the thing after 2 years. First car I never missed for a second. If I was consumer reports I would give it a "DO NOT BUY".
The shifting is one problem but what's even worse is the horrendous seats that have 0 cushion. There's absolutely no reason why a company should make ****ty seats. Are they really concerned about 20lbs of cushion? come on.
Newbie
Joined: Oct 2019
Posts: 11
Likes: 0
2017 GLC 43 AMG
I'm not convinced that this issue is entirely due to the transmission. My 2017 GLC was doing this herky-jerky deceleration from 3rd to 2nd in comfort mode. One observation I made was that the charging indicator would peak and then drop off suddenly which seemed to affect the rate of deceleration while braking to a full stop. The situation seems somewhat improved since the last software update. I still have to modulate the braking more than I need to for my C450 with the 7g tranny but it's easier now to prevent the jerkiness when slowing to a full stop.
Super Member
Joined: Aug 2019
Posts: 881
Likes: 300
AMG GLC 63s Coupe
Super Member
Joined: Aug 2019
Posts: 881
Likes: 300
AMG GLC 63s Coupe
Looks like the 43 still uses a Torque Converter
The 43 states: SPEEDSHIFT TCT 9-speed
The 63s states:SPEEDSHIFT MCT 9-speed
The 43 states: SPEEDSHIFT TCT 9-speed
The 63s states:SPEEDSHIFT MCT 9-speed
AMG SPEEDSHIFT TCT 9-Speed transmission
Specific AMG programming of the 9-speed automatic transmission delivers quicker gear changes in the paddle-shifted Manual mode. In the Comfort, Sport and Sport+ modes of DYNAMIC SELECT, the wide range of closely spaced ratios offers an ideal blend of smooth, efficient performance in virtually every driving situation, from relaxed cruising to quick acceleration. Two overdrive ratios further enhance highway fuel efficiency
AMG SPEEDSHIFT MCT 9-speed transmission
The world's first 9-speed multiclutch transmission is even more effective, efficient and, best of all, enjoyable. AMG SPEEDSHIFT® MCT technology shortens shift times and offers quick multi-gear downshifts. A wet startup clutch eliminates the torque converter, improving performance and, along with a magnesium casing, saving weight. The Sport, Sport+ and Manual modes of AMG DYNAMIC SELECT quicken upshifts and rev-match downshifts, while Comfort mode can decouple to save fuel when coasting
Specific AMG programming of the 9-speed automatic transmission delivers quicker gear changes in the paddle-shifted Manual mode. In the Comfort, Sport and Sport+ modes of DYNAMIC SELECT, the wide range of closely spaced ratios offers an ideal blend of smooth, efficient performance in virtually every driving situation, from relaxed cruising to quick acceleration. Two overdrive ratios further enhance highway fuel efficiency
AMG SPEEDSHIFT MCT 9-speed transmission
The world's first 9-speed multiclutch transmission is even more effective, efficient and, best of all, enjoyable. AMG SPEEDSHIFT® MCT technology shortens shift times and offers quick multi-gear downshifts. A wet startup clutch eliminates the torque converter, improving performance and, along with a magnesium casing, saving weight. The Sport, Sport+ and Manual modes of AMG DYNAMIC SELECT quicken upshifts and rev-match downshifts, while Comfort mode can decouple to save fuel when coasting
Last edited by ParadigmDawg; Oct 28, 2019 at 04:17 PM.
MBWorld Fanatic!
Joined: Feb 2016
Posts: 1,577
Likes: 264
From: Portland, OR
C450, GLC43
What software update did the dealership do to your car? Was it an update to the transmission? Partly asking because I see in another thread you mentioned that your car always cold starts after an update. Think mine cold starts more loudly now too after my last visit to the dealership and they performed some updates to the car.
I complained about the jerky deceleration and the bunny hop and asked for a software update while it was in for regular service. The found an update and installed it. The service record did not include a software version or build number. After the updates the car will now initiate a cold start even it's not cold. I noticed on short errands when the car is still warm but parked for 15-30 minutes. It fires up and idles high then slowly drops to normal idle. Putting it in gear immediately reduces the to normal.
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Newbie
Joined: Jan 2020
Posts: 1
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GLC43
GLC43 jerking when coming to a stop
Has anyone made any progress on the original topic here? I have a 2017 GLC43 and the 4-3 and 3-2 downshifts are very rough, even in Comfort mode. I've had the car into the dealer twice with no resolution. They have punted the problem to MB engineering, but after 4 weeks there is still no response.
Member
Joined: Jan 2019
Posts: 76
Likes: 4
.
Has anyone made any progress on the original topic here? I have a 2017 GLC43 and the 4-3 and 3-2 downshifts are very rough, even in Comfort mode. I've had the car into the dealer twice with no resolution. They have punted the problem to MB engineering, but after 4 weeks there is still no response.
