Does anybody NOT have the 1-2-3 rough shift issue?
09-03-2019, 07:31 AM
#126
MBWorld Fanatic!
09-03-2019, 12:39 PM
#128
Super Member
2015 C3004M here, the only rough shift I get is in cold temps from 5-4. It gets back to smooth after 5 min of driving.
09-03-2019, 08:37 PM
#129
Had the 5-4 downshift issue but the dealer was eventually able to fix it. That harsh downshift really bothered me..it was pretty jerky, and now it’s smooth even on cold starts in cold weather
09-03-2019, 09:20 PM
#130
Super Member
09-03-2019, 09:23 PM
#131
09-07-2019, 02:02 AM
#132
09-16-2019, 01:47 PM
#135
Member
I have a 2019 C300 Coupe Sport and I've recently noticed that it shifts roughly at times, recently it has started occasionally "bucking" from a cold start when given gas. It does 3-4 bucks and is fine after that. "Dealer could not replicate" of course.
09-19-2019, 03:06 AM
#136
When in sport + and driving at 60-70kph (37-44mph), my g7 gear stays in D3 and rpm stays around 3,000. Is this normal? It usually upshifts at around 3,200 but sometimes stays in the same gear and makes loud mechanical noises.
This is after I reset transmission adaptive shifting because I'm pretty sure it didn't upshift until past 4,500 rpm and was making crazy noises in sport +.
This is after I reset transmission adaptive shifting because I'm pretty sure it didn't upshift until past 4,500 rpm and was making crazy noises in sport +.
Last edited by pussgalore; 09-19-2019 at 03:23 AM.
10-01-2019, 12:25 PM
#137
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Join Date: Nov 2016
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2017 Mercedes-Benz C300, 2017 Mercedes-Benz GLC300
The initial post is from 2016 and was referring to the 7 speed transmission (7G) built at the time. You have the 9 speed (9G) transmission in your 2018 car. The 9G does not seem to have those issues.
10-01-2019, 12:32 PM
#138
Senior Member
Join Date: Nov 2016
Posts: 268
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2017 Mercedes-Benz C300, 2017 Mercedes-Benz GLC300
When in sport + and driving at 60-70kph (37-44mph), my g7 gear stays in D3 and rpm stays around 3,000. Is this normal? It usually upshifts at around 3,200 but sometimes stays in the same gear and makes loud mechanical noises.
This is after I reset transmission adaptive shifting because I'm pretty sure it didn't upshift until past 4,500 rpm and was making crazy noises in sport +.
This is after I reset transmission adaptive shifting because I'm pretty sure it didn't upshift until past 4,500 rpm and was making crazy noises in sport +.
You can get upshifts at very low rpms even in S and S+ if you are gentle on the accelerarion, but once you floor it the shift points go up to 3k+ rpm and won't drop until you put it in park.
01-08-2021, 10:29 PM
#139
a slight vibration when braking when the car downshifts from 4 > 3.
Dealer told me a transmission update was being done on my car along with another fix (door handle bulbs went out) so I have a tiny bit of hope. Although it's very likely the update doesn't fix anything and i get told its part of the ''characteristics'' of the car.
I also noticed a slight vibration when braking when the car downshifts from 4 > 3. It's really not a major vibration but I can feel it in the brake pedal and the steering wheel. The loaner I have doesn't have this problem but still has very jerky shifts. Hoping to get my car back tomorrow and report any new findings
I also noticed a slight vibration when braking when the car downshifts from 4 > 3. It's really not a major vibration but I can feel it in the brake pedal and the steering wheel. The loaner I have doesn't have this problem but still has very jerky shifts. Hoping to get my car back tomorrow and report any new findings
Last edited by Ugin Ugin; 01-08-2021 at 11:22 PM.
12-20-2021, 04:50 PM
#140
Whenever My car starts to accelerate and change gears it starts giving some small jerks at gear 3 above and very noticeable when climbing uphill. Why is that happening? i drive a c300 benz 2011 4matic. I have changed engine oil and gear box oil and also serviced the fuel injectors. this is also noticeable on the car speedometer as seen in the video attached. this happens a lot while maintaining constant speed
