GLC43 jerking when accelerating after near stop
#51
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I see people seemingly talking about separate issues. I haven't experienced the suspected "jerkiness" in Sport+ on my 43. Sport+ mode seems to always have you in the correct gear to accelerate. I prefer the feel of the car in Sport+, but don't use it all the time. Depends on whether I feel like driving aggressively at the moment. I do love the sound/feel of the backfires. Could that be what people are experiencing?
What I have experienced is, in comfort mode... I hit the gas and after a bit of acceleration, it seems to slowly switch to 2nd gear. It hits the gear and then after a little more throttle, goes to third. IIRC, this is all at sub 20mph speeds. If I have a slight turn on the wheel, it exacerbates it. I noticed this on the test drive, but it didn't really bother me. To be honest, it felt like some sort of adaptive driving that was tuned to someone other then me. I notice this at casual driving speeds. Not pedal pounding. If I'm pedal pounding, I'm in S+ mode.
What I have experienced is, in comfort mode... I hit the gas and after a bit of acceleration, it seems to slowly switch to 2nd gear. It hits the gear and then after a little more throttle, goes to third. IIRC, this is all at sub 20mph speeds. If I have a slight turn on the wheel, it exacerbates it. I noticed this on the test drive, but it didn't really bother me. To be honest, it felt like some sort of adaptive driving that was tuned to someone other then me. I notice this at casual driving speeds. Not pedal pounding. If I'm pedal pounding, I'm in S+ mode.
1. Overall un-smooth transmission shifting in various scenarios. (Not necessarily topic of the title of the thread, but people are adding experiences, which is fine.).
2. Topic of thread, where there is jerking or more like bucking bronco action of the vehicle when accelerating after slowing (for turn) or near stop.
#2 was my scenario and I was in Sport+, which is when I believe this transmission action happens. So, I was slowing down and coming to a right turn and after the turn, I got back on the throttle with kind of a pu$$y foot, to be honest.
![Big Grin](https://mbworld.org/forums/images/smilies/biggrin.gif)
After doing a little research here, I kind of knew exactly what was going on. The throttle/pedal is damn sensitive in Sport+. If you drive in that mode, little inputs will do certain things like downshift to lower gear or take off to the next gear. Sport+ really is a mode for no half-a$$ing it or being indecisive. It makes sense, especially after thinking back to my time at AMG Academy. There wasn’t an instructor there that didn’t tell me to thrash the doo doo out of the vehicles if/when in Sport+. “They can handle it” was a common refrain....they are right. So, if in Sport+, thrash your GLC.
![Smilie](https://mbworld.org/forums/images/smilies/smile.gif)
That said, there are times and in other modes where the transmission can be a bit un-smooth or indecisive in its function. I found it mostly before the transmission warms up and perhaps the way it learns driving style has an effect. It’s not really a bother to me if/when it happens and I don’t think on my vehicle it’s as bad as say MBenz or MJ experiences. Overall, for me, still enjoy the vehicle. YMMV...
#52
2019 AMG GLC 43 also jolting/bucking in Sport+
We are experiencing the same, dangerous jolting/bucking of our 2019 model (purchased January 2019) when coming out of a turn at low speed while in Sport+. A visit and test ride at the dealership was not able to reproduce the issue, and no codes/alerts, etc were evident when they looked over the vehicle's engine. They did "flush the valves" but that had no impact on remediating the issue as I experienced the jolting two days later while in Sport+. I decided to capture the incident on video. The video shows the car in Sport+ mode operating normally until making a right turn, at which point when the accelerator pedal is pressed to increase speed the car begins bucking/jerking violently to the point where I have to remove my foot from the accelerator to avoid losing complete control of the car. Obviously this is unacceptable performance for any car, much less a $65k Mercedes.
I forwarded the video to the dealership yesterday and I am awaiting their feedback, but judging from the other posts in this forum the issue has never been remediated beyond "adjust your driving style".
We bought the AMG GLC 43 based on a number of factors, one of which was the impressive acceleration and sound of Sport+ mode. Apart from this issue the vehicle has performed generally well and is fun to drive. It's a stunner too in all black with night package. However this Sport+ issue is dangerous, and had I known this in advance I would have opted for a different vehicle.
I will update this thread once I have a chance to discuss with dealer.
I forwarded the video to the dealership yesterday and I am awaiting their feedback, but judging from the other posts in this forum the issue has never been remediated beyond "adjust your driving style".
We bought the AMG GLC 43 based on a number of factors, one of which was the impressive acceleration and sound of Sport+ mode. Apart from this issue the vehicle has performed generally well and is fun to drive. It's a stunner too in all black with night package. However this Sport+ issue is dangerous, and had I known this in advance I would have opted for a different vehicle.
I will update this thread once I have a chance to discuss with dealer.
#53
We are experiencing the same, dangerous jolting/bucking of our 2019 model (purchased January 2019) when coming out of a turn at low speed while in Sport+. A visit and test ride at the dealership was not able to reproduce the issue, and no codes/alerts, etc were evident when they looked over the vehicle's engine. They did "flush the valves" but that had no impact on remediating the issue as I experienced the jolting two days later while in Sport+. I decided to capture the incident on video. The video shows the car in Sport+ mode operating normally until making a right turn, at which point when the accelerator pedal is pressed to increase speed the car begins bucking/jerking violently to the point where I have to remove my foot from the accelerator to avoid losing complete control of the car. Obviously this is unacceptable performance for any car, much less a $65k Mercedes.
I forwarded the video to the dealership yesterday and I am awaiting their feedback, but judging from the other posts in this forum the issue has never been remediated beyond "adjust your driving style".
We bought the AMG GLC 43 based on a number of factors, one of which was the impressive acceleration and sound of Sport+ mode. Apart from this issue the vehicle has performed generally well and is fun to drive. It's a stunner too in all black with night package. However this Sport+ issue is dangerous, and had I known this in advance I would have opted for a different vehicle.
I will update this thread once I have a chance to discuss with dealer.
I forwarded the video to the dealership yesterday and I am awaiting their feedback, but judging from the other posts in this forum the issue has never been remediated beyond "adjust your driving style".
We bought the AMG GLC 43 based on a number of factors, one of which was the impressive acceleration and sound of Sport+ mode. Apart from this issue the vehicle has performed generally well and is fun to drive. It's a stunner too in all black with night package. However this Sport+ issue is dangerous, and had I known this in advance I would have opted for a different vehicle.
I will update this thread once I have a chance to discuss with dealer.
Now, if you think that taking a corner at full throttle is too much, then right before the corner, move it down to S mode. You can give it partial throttle with no bucking. I am constantly switching drive modes to suite the situation. Thats what they're for. There's only one way to use S+ at low speeds, gas on or gas off. At freeway speeds or on mountain roads, S+ works fine. For full throttle drag launches it works fine. But they didn't design that mode for partial throttle at slow speeds.
I agree the software mapping for S+ could be improved. But imo its not worth the hassle of fighting with Mercedes. I would rather adjust my driving style to the car and enjoy driving it.
#54
Driving style is not at fault (owners manual clearly states the accelerator pedal position influences how the automatic transmission shifts gear; :little throttle = early upshifts, more throttle =:late upshifts, No mention in manual to avoid this style of pedal management when in Sport+. In my video it is clear there is no upshifting going on. However I get your point - driving style can be a remedy to the issue, However, imo that would be a weak position for MB to advocate for given the car's price tag and the AMG (lite) badge they affix to the car. Again, apart from this issue the car is awesome, but I bought it to drive in Sport+, not to make manual adjustments while I take a corner in situations where slamming the pedal is not wise due to traffic conditions.
#55
Driving style is not at fault (owners manual clearly states the accelerator pedal position influences how the automatic transmission shifts gear; :little throttle = early upshifts, more throttle =:late upshifts, No mention in manual to avoid this style of pedal management when in Sport+. In my video it is clear there is no upshifting going on. However I get your point - driving style can be a remedy to the issue, However, imo that would be a weak position for MB to advocate for given the car's price tag and the AMG (lite) badge they affix to the car. Again, apart from this issue the car is awesome, but I bought it to drive in Sport+, not to make manual adjustments while I take a corner in situations where slamming the pedal is not wise due to traffic conditions.
But I understand. You want the car to be "perfect". Have fun seeking perfection. Meanwhile, I'll be enjoying my car
#56
Junior Member
No one has commented for a few months but I am getting the same thing as described here. It's clearly a fault of the cars NOT driving style. I have a 19 GLC 63s. My particular issue happens from a stop when turning right in any mode C, S, S+ at anything other than very mild throttle. I took our local MB shop foreman out this morning and he reproduced the same jerkying/bucking/loss of power that happens EVERY TIME the car is in that situation. This is not normal, we should not have to adjust our driving style, this should absolutely be fixed. He witnessed it but was hesitant to say if that was normal or not.
Any updates from anyone on a fix? Doesn't seem to be one which is a shame because in every other respect I love this car and look forward to driving it everyday!
Will report back here if this does somehow get fixed.
thanks
ray
Any updates from anyone on a fix? Doesn't seem to be one which is a shame because in every other respect I love this car and look forward to driving it everyday!
Will report back here if this does somehow get fixed.
thanks
ray
#57
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GLC43, GTI, X3, Mazda3
No one has commented for a few months but I am getting the same thing as described here. It's clearly a fault of the cars NOT driving style. I have a 19 GLC 63s. My particular issue happens from a stop when turning right in any mode C, S, S+ at anything other than very mild throttle. I took our local MB shop foreman out this morning and he reproduced the same jerkying/bucking/loss of power that happens EVERY TIME the car is in that situation. This is not normal, we should not have to adjust our driving style, this should absolutely be fixed. He witnessed it but was hesitant to say if that was normal or not.
Any updates from anyone on a fix? Doesn't seem to be one which is a shame because in every other respect I love this car and look forward to driving it everyday!
Will report back here if this does somehow get fixed.
thanks
ray
Any updates from anyone on a fix? Doesn't seem to be one which is a shame because in every other respect I love this car and look forward to driving it everyday!
Will report back here if this does somehow get fixed.
thanks
ray
PS. Nice stable of cars you got there...
![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)
#58
Junior Member
thanks Chris, actually they were my past cars, i have deleted them.
Will check out the other forum and hopefully, this is something they can fix with a transmission update..
Will check out the other forum and hopefully, this is something they can fix with a transmission update..
#59
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![thumbs](https://mbworld.org/forums/images/smilies/thumbsup.gif)
#60
Super Member
Pretty sure on the GLC you just disconnect the battery for 10 minutes and it resets.
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Chrisk03 (11-05-2019)
#61
Junior Member
Update:
So I heard back from the dealership yesterday, they basically said this was happening because my rear tires were worn. I told them that this has been happening since I bought the vehicle on 26th Sept 2019. So the date is 6th Nov, essentially I have driven the car 2700 miles in that time and the tires (Pirelli) which were brand new at that time, are down to 3/32 showing even wear so not out of alignment. How is that even possible? So there are two issues here, the jerking motion when turning right which happened from Day 1. and the fact that my rear tires only lasted 2700 miles!
Has anyone else experienced this dramatic tire wearing?
Before anyone asks my driving style is moderate to aggressive. In previous cars: M3 Competition my tires lasted 18,000 miles before needing to be changed. My E63s about 10K, my E55AMG about 6K to 7K.
I generally drive in C mode in the mornings due to traffic, weekends I drive in S+, a couple of days ago I started playing with Individual settings where my new favorite is S+ Driving mode, with Sports Handling mode engaged, but I barely have a day of driving on that mode mostly on highway.
I'm bewildered at this point on the tire life. I understand that we have AMG's and its to be expected, I'm ok with 6K or 7K tire changes, but am shocked at under 3K.
I have also never used launch control much less heard tires spinning.
So I'm left with the problem not being solved and the extra cost of having to replace tires so quickly and at this rate will be changing rear tires 8 times a year!
Any thoughts?
So I heard back from the dealership yesterday, they basically said this was happening because my rear tires were worn. I told them that this has been happening since I bought the vehicle on 26th Sept 2019. So the date is 6th Nov, essentially I have driven the car 2700 miles in that time and the tires (Pirelli) which were brand new at that time, are down to 3/32 showing even wear so not out of alignment. How is that even possible? So there are two issues here, the jerking motion when turning right which happened from Day 1. and the fact that my rear tires only lasted 2700 miles!
Has anyone else experienced this dramatic tire wearing?
Before anyone asks my driving style is moderate to aggressive. In previous cars: M3 Competition my tires lasted 18,000 miles before needing to be changed. My E63s about 10K, my E55AMG about 6K to 7K.
I generally drive in C mode in the mornings due to traffic, weekends I drive in S+, a couple of days ago I started playing with Individual settings where my new favorite is S+ Driving mode, with Sports Handling mode engaged, but I barely have a day of driving on that mode mostly on highway.
I'm bewildered at this point on the tire life. I understand that we have AMG's and its to be expected, I'm ok with 6K or 7K tire changes, but am shocked at under 3K.
I have also never used launch control much less heard tires spinning.
So I'm left with the problem not being solved and the extra cost of having to replace tires so quickly and at this rate will be changing rear tires 8 times a year!
Any thoughts?
#62
Super Member
Update:
So I heard back from the dealership yesterday, they basically said this was happening because my rear tires were worn. I told them that this has been happening since I bought the vehicle on 26th Sept 2019. So the date is 6th Nov, essentially I have driven the car 2700 miles in that time and the tires (Pirelli) which were brand new at that time, are down to 3/32 showing even wear so not out of alignment. How is that even possible? So there are two issues here, the jerking motion when turning right which happened from Day 1. and the fact that my rear tires only lasted 2700 miles!
Has anyone else experienced this dramatic tire wearing?
Before anyone asks my driving style is moderate to aggressive. In previous cars: M3 Competition my tires lasted 18,000 miles before needing to be changed. My E63s about 10K, my E55AMG about 6K to 7K.
I generally drive in C mode in the mornings due to traffic, weekends I drive in S+, a couple of days ago I started playing with Individual settings where my new favorite is S+ Driving mode, with Sports Handling mode engaged, but I barely have a day of driving on that mode mostly on highway.
I'm bewildered at this point on the tire life. I understand that we have AMG's and its to be expected, I'm ok with 6K or 7K tire changes, but am shocked at under 3K.
I have also never used launch control much less heard tires spinning.
So I'm left with the problem not being solved and the extra cost of having to replace tires so quickly and at this rate will be changing rear tires 8 times a year!
Any thoughts?
So I heard back from the dealership yesterday, they basically said this was happening because my rear tires were worn. I told them that this has been happening since I bought the vehicle on 26th Sept 2019. So the date is 6th Nov, essentially I have driven the car 2700 miles in that time and the tires (Pirelli) which were brand new at that time, are down to 3/32 showing even wear so not out of alignment. How is that even possible? So there are two issues here, the jerking motion when turning right which happened from Day 1. and the fact that my rear tires only lasted 2700 miles!
Has anyone else experienced this dramatic tire wearing?
Before anyone asks my driving style is moderate to aggressive. In previous cars: M3 Competition my tires lasted 18,000 miles before needing to be changed. My E63s about 10K, my E55AMG about 6K to 7K.
I generally drive in C mode in the mornings due to traffic, weekends I drive in S+, a couple of days ago I started playing with Individual settings where my new favorite is S+ Driving mode, with Sports Handling mode engaged, but I barely have a day of driving on that mode mostly on highway.
I'm bewildered at this point on the tire life. I understand that we have AMG's and its to be expected, I'm ok with 6K or 7K tire changes, but am shocked at under 3K.
I have also never used launch control much less heard tires spinning.
So I'm left with the problem not being solved and the extra cost of having to replace tires so quickly and at this rate will be changing rear tires 8 times a year!
Any thoughts?
My tires are pretty shot at almost 10,000 miles and this is with the camber being way off, to the point you can visibly see it, secondary to the lowering.
I only have some jerking if my drivetrail isn't up to temp and I am in S+.
For reference, my GLE63S got 8,000-9,000 between tire changes.
Something seems off with yours.
#63
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rj - sorry, that sounds like complete BS. Tire wear wouldn't likely cause that, IMO. Further, no way your tires should be that low with less than 3k miles unless you are burning rubber constantly. Check your owners manual packet for the tire warranty and push the dealer for replacement tires as defective. Then when you still feel the jerking after the new tires, you can call them out.
If not, I'd try a more accommodating dealer if you have another close and probably call MB customer service and put in a ticket/complaint.
Just my .02...Good luck!
If not, I'd try a more accommodating dealer if you have another close and probably call MB customer service and put in a ticket/complaint.
Just my .02...Good luck!
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ljm301 (01-17-2020)
#64
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glc43 amg(sold) 2015 Mustang GT 2019 Volveo Inscription t6
IMO, I don,t think the tires are "defective". I think something is screwed up in the suspension geometry of that vehicle. My GLC43 never had the jerky acceleration problem and I got rid of it with 33k on the original tires. Of course, those tires rode like rocks.
#65
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I had summer performance tires (Conti's) and they were fine at 7100 miles, although the fronts were wearing a bit on the outside due to suspension geometry.
Either way, under 3k miles for tires going bad is crazy UNLESS he's driving like a mad man. Also, highly doubt it has anything to do with the trans...as what he describes with respect to jerking happened on my 43...with new tires and with miles on them.
#66
It's a throttle issue and you are crazy if you take it to a dealer and have them tear down the trans to find the "cause"...IMO. This isn't a Lexus LS. I believe in the manual it even states that you shouldn't be in Sport+ or driving like a bat out of hell until your trans warms up. The software is VERY aggressive in S+ and shifts aren't real smooth, even when warm, but they are quick and responsive. I agree the first time you experience it, you are like WTF, but it's all in probably millimeters of movement of the gas pedal on whether it happens or not and some can make it happen (or not) at will. If it's not to your liking, its probably not the vehicle for you...and that's ok. Some have been able to get a software update that helps fix it, but also neuters the vehicle from my understanding. Good luck.
#67
Super Member
Someone above was saying the 43s have some sort of tq converter that the 63s don’t. So I can see that adding shift time and giving a user more car movement when the next gear takes. But again this is apart of any vehicle. Manuals have it bad if you’re shifting inside ideal RPMs but daily relaxed driving you can make it smooth just by easy shifting. Most transmissions are geared and mapped for fuel economy over performance. Not sure which transmission the 43 has but I’d bet the gearing was selected for a performance sports car and when you’re not super low to the ground, stiff suspension and flat with a performance sports car you’re gonna get more feel in your pants during shifting. I can’t think of any sport vehicle I’ve driven that doesn’t have this same effects. The large sport SUVs just carry so much weight they’re significantly more sluggish so the 1-2 gear changes are not the same. Only ‘fix’ would be to change the allowed throttle input max for the 1-2 gears which will slow it down and eat up your 0-60 performance
well it can also be regeared but that would take away from the 0-60 times.
Must be a 43 only thing with tq converter
well it can also be regeared but that would take away from the 0-60 times.
Must be a 43 only thing with tq converter
The 43: SPEEDSHIFT TCT 9-speed
The 63s: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
#68
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Join Date: May 2013
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2020 MB-AMG GLC43
I have a ‘17 C43 and am waiting on my GLC43.
1) Mercedes went very aggressive to a super tight first gear. Crazy short.
2) Throttle response is also extreme in SPORT+
I personally believe it is a blend of these two issues is causing it in all of these cars. I don’t think anything is wrong.
mash it.
1) Mercedes went very aggressive to a super tight first gear. Crazy short.
2) Throttle response is also extreme in SPORT+
I personally believe it is a blend of these two issues is causing it in all of these cars. I don’t think anything is wrong.
mash it.
#69
2019 GLC 63 bogging down on acceleration from turns
Have experienced bogging down in my 2019 GLC 63 on moderate acceleration from both right and left turns from a stop in multiple drive modes. It's disturbing and dangerous. Have experimented extensively with changing drive modes and modulating throttle inputs. Have not yet found a reliable solution. It seems worse when the engine/tranny is cold, but still occurs when all is warmed. Sport ESP mode seems to help, but does not eliminate the issue.
Have owned numerous high performance vehicles over the years . Tire wear seems normal for such a vehicle. But bogging down on mild to moderate acceleration out of a turn from a stop is not normal. And it is dangerous. Something is definitely amiss.
In for one year service in two days. Have alerted my service advisory to the problem. But it seems like an endemic issue with the 63 and the MCT. Was planning to upgrade to the 2020 model but will wait for this issue to settle. Otherwise love the vehicle.
Have owned numerous high performance vehicles over the years . Tire wear seems normal for such a vehicle. But bogging down on mild to moderate acceleration out of a turn from a stop is not normal. And it is dangerous. Something is definitely amiss.
In for one year service in two days. Have alerted my service advisory to the problem. But it seems like an endemic issue with the 63 and the MCT. Was planning to upgrade to the 2020 model but will wait for this issue to settle. Otherwise love the vehicle.
#70
Member
Have experienced bogging down in my 2019 GLC 63 on moderate acceleration from both right and left turns from a stop in multiple drive modes. It's disturbing and dangerous. Have experimented extensively with changing drive modes and modulating throttle inputs. Have not yet found a reliable solution. It seems worse when the engine/tranny is cold, but still occurs when all is warmed. Sport ESP mode seems to help, but does not eliminate the issue.
Have owned numerous high performance vehicles over the years . Tire wear seems normal for such a vehicle. But bogging down on mild to moderate acceleration out of a turn from a stop is not normal. And it is dangerous. Something is definitely amiss.
In for one year service in two days. Have alerted my service advisory to the problem. But it seems like an endemic issue with the 63 and the MCT. Was planning to upgrade to the 2020 model but will wait for this issue to settle. Otherwise love the vehicle.
Have owned numerous high performance vehicles over the years . Tire wear seems normal for such a vehicle. But bogging down on mild to moderate acceleration out of a turn from a stop is not normal. And it is dangerous. Something is definitely amiss.
In for one year service in two days. Have alerted my service advisory to the problem. But it seems like an endemic issue with the 63 and the MCT. Was planning to upgrade to the 2020 model but will wait for this issue to settle. Otherwise love the vehicle.
Put the right tires on and the car drives awesome. Unless it's extreme tire wear, I doubt thats the problem.
#71
In slow traffic speed. When upshift, it feels like the trany is missing clutch. When slow down slowly, it feels like the car is using gear to slow the car down not the breaks.... This new 9 speed trany is not good at all...
#72
Junior Member
I have been driving my 2019 GLC 63 for 3 weeks now and i can tell the trany is the worst part of this capable SUV. All issues reported here i am experiencing as well. MB AMG does not know or is unwilling to tune this transmission for comfort driving in my personal opinion unless the 9 speed hardware just does not allow for smoother shifting. The 7 speed in my wife 2014 ML63 is a bit better but still plenty of hard shifts. Looks like the S63 AMG have the same transmission so may be if anyone have tried that one can tell us if this 9 speed can be smooth in comfort mode ?
#73
Yes, the tranny is rough and seems to get confused at low speeds when acceleration is variable. Most of us here have agreed we can live with that as a trade-off for the overall fantastic performance of the AMG '63.
But the issue I (and apparently others here) find inexcusable as well as dangerous s the propensity of the GLC 63 to bog down by drastically reducing engine power when accelerating even moderately from a stop into a left or right turn. It's not a shifting problem because it happens in manual shift mode. Flashing yellow lights in the instrument panel indicate traction control is kicking in.
This makes no sense. My tires are good and properly inflated. This has been a problem from day one and persists after 10,00 miles. It seems to be more of a problem when the engine (and tires?) are cold. I've resorted to operating in ESP sport mode which seems to help. But something is not right. Dealer has not been able to find find anything wrong. Just living with this for now.
But the issue I (and apparently others here) find inexcusable as well as dangerous s the propensity of the GLC 63 to bog down by drastically reducing engine power when accelerating even moderately from a stop into a left or right turn. It's not a shifting problem because it happens in manual shift mode. Flashing yellow lights in the instrument panel indicate traction control is kicking in.
This makes no sense. My tires are good and properly inflated. This has been a problem from day one and persists after 10,00 miles. It seems to be more of a problem when the engine (and tires?) are cold. I've resorted to operating in ESP sport mode which seems to help. But something is not right. Dealer has not been able to find find anything wrong. Just living with this for now.
#74
Stuppid suggeation
Hi guys have the same from day 62 (i bought a test car with 6000km) in my glc43 2016 have now 45000km.
Did you guys happen to have the radar option?
On m my when i dissable the radar(distance control) and lane assist it seems to be far less present...
i think the presave peddestrian protection is interveining. And the sport plus drives from 1 gear insted of 2nd on comfort and as stated not realy great for creeping.
Have the same engin gearbox in my 2015 gle 450 coupe and never had this issue despite having the radar aswell.
Did you guys happen to have the radar option?
On m my when i dissable the radar(distance control) and lane assist it seems to be far less present...
i think the presave peddestrian protection is interveining. And the sport plus drives from 1 gear insted of 2nd on comfort and as stated not realy great for creeping.
Have the same engin gearbox in my 2015 gle 450 coupe and never had this issue despite having the radar aswell.