W205 7spd Long 1st Gear
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Member
Joined: Dec 2019
Posts: 160
Likes: 14
2016 C300 w/ sport package
W205 7spd Long 1st Gear
Does anyone else notice their w205 holds onto 1st gear sometimes past 3k rpm before shifting into 2nd and then shifts into 3rd like almost instantly? This is when accelerating lightly, I really wish the car would shift out of 1st a lot sooner than it does, unnecessary wear and gas when you're not even accelerating hard. The shift points on this car makes no sense to me. Sometimes I can get it to shift out of 1st at a reasonable time if I accelerate a little harder but how does that even make any sense? I feel like there should be a software update to fix this issue but I mentioned it to my dealer and they just said everything looks normal.
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A gaggle of MB's
In Economy and Comfort - normal takeoff from a stop is 2nd I believe.
You might download a pdf copy of the 2016 C300 Owner's Manual from MBUSA.com - click My Account upper left corner of that Home Page - then click Owner's Support - in Owner's Support scroll down to View Manuals - in View Manual move slider to right to 2016 - open and download your manual
You might download a pdf copy of the 2016 C300 Owner's Manual from MBUSA.com - click My Account upper left corner of that Home Page - then click Owner's Support - in Owner's Support scroll down to View Manuals - in View Manual move slider to right to 2016 - open and download your manual
Thread Starter
Member
Joined: Dec 2019
Posts: 160
Likes: 14
2016 C300 w/ sport package
In Economy and Comfort - normal takeoff from a stop is 2nd I believe.
You might download a pdf copy of the 2016 C300 Owner's Manual from MBUSA.com - click My Account upper left corner of that Home Page - then click Owner's Support - in Owner's Support scroll down to View Manuals - in View Manual move slider to right to 2016 - open and download your manual
You might download a pdf copy of the 2016 C300 Owner's Manual from MBUSA.com - click My Account upper left corner of that Home Page - then click Owner's Support - in Owner's Support scroll down to View Manuals - in View Manual move slider to right to 2016 - open and download your manual
MBWorld Fanatic!
Joined: Nov 2015
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From: Oklahoma
2016 C300 4Matic traded in for a 2022 E450 Coupe
In Economy and Comfort - normal takeoff from a stop is 2nd I believe.
You might download a pdf copy of the 2016 C300 Owner's Manual from MBUSA.com - click My Account upper left corner of that Home Page - then click Owner's Support - in Owner's Support scroll down to View Manuals - in View Manual move slider to right to 2016 - open and download your manual
You might download a pdf copy of the 2016 C300 Owner's Manual from MBUSA.com - click My Account upper left corner of that Home Page - then click Owner's Support - in Owner's Support scroll down to View Manuals - in View Manual move slider to right to 2016 - open and download your manual
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Member
Joined: Oct 2019
Posts: 145
Likes: 32
From: Cheshire UK
C200
I have noticed this on my 2018 C200 every now and then, doesnt matter which mode I am in (usually Eco or Comfort). It doesnt happen very often and I find lifting off the gas usually forces it to go up the gears.
It doesnt happen enough for me to mention it to the dealer but I will do if it starts happening more than it does.
It doesnt happen enough for me to mention it to the dealer but I will do if it starts happening more than it does.
Super Member
Joined: Dec 2016
Posts: 797
Likes: 141
2018 C43
Reset your transmission like others suggested. I regularly reset my transmission when it goes to 2k rpm when I lightly press the gas in comfort mode.
1. Turn the key to position 2. You should see all the dash lights come on. Don't start the car. In position 2, you should hear two clicks and all your dash lights should turn on. Do not start the engine.
2. Press the gas pedal all the way. By pressing the accelerator pedal to the floor, you will activate the kick down switch. Keep the gas pedal pressed all the way to down.
3. Wait. Continue to keep the gas pedal pressed for at least 10 seconds.
4. Turn key to OFF, position 0. Don’t remove the key.
5. Release the gas pedal.
6. Wait 2 minutes. During this process, key is left in the ignition in the OFF position.
7. Start the car and drive.
1. Turn the key to position 2. You should see all the dash lights come on. Don't start the car. In position 2, you should hear two clicks and all your dash lights should turn on. Do not start the engine.
2. Press the gas pedal all the way. By pressing the accelerator pedal to the floor, you will activate the kick down switch. Keep the gas pedal pressed all the way to down.
3. Wait. Continue to keep the gas pedal pressed for at least 10 seconds.
4. Turn key to OFF, position 0. Don’t remove the key.
5. Release the gas pedal.
6. Wait 2 minutes. During this process, key is left in the ignition in the OFF position.
7. Start the car and drive.
Last edited by stockbmw; Jul 8, 2020 at 01:00 PM.
Super Member
Joined: Dec 2016
Posts: 797
Likes: 141
2018 C43
Do it few times, there might be chance you missed a step. I just did it again on my car and it stop going to 2000rpm but 1500rpm then upshifts when lightly pressing the gas.
Thread Starter
Member
Joined: Dec 2019
Posts: 160
Likes: 14
2016 C300 w/ sport package
Not sure what the 722.9 Transmission is, all I know is I more than likely do not have one as mine starts in 1st gear from a stop. If you don't completely stop many times it will stay in 2nd, but from a dead stop always 1st gear. It would be nice if it did start in 2nd I can tell you that much.
Senior Member
Joined: Nov 2016
Posts: 268
Likes: 21
2017 Mercedes-Benz C300, 2017 Mercedes-Benz GLC300
Does anyone else notice their w205 holds onto 1st gear sometimes past 3k rpm before shifting into 2nd and then shifts into 3rd like almost instantly? This is when accelerating lightly, I really wish the car would shift out of 1st a lot sooner than it does, unnecessary wear and gas when you're not even accelerating hard. The shift points on this car makes no sense to me. Sometimes I can get it to shift out of 1st at a reasonable time if I accelerate a little harder but how does that even make any sense? I feel like there should be a software update to fix this issue but I mentioned it to my dealer and they just said everything looks normal.
I have posted videos on youtube about the issue:
Ask a Mercedes indy shop to check for a software update for your transmission. Don't trust the dealership!
I believe the real issue has something to do with the acceleration and timing. If you keep gradually depressing the acceleration more and more for over 0.7 seconds then you got the long 1st gear. Try depressing it quickly to your desired point within 0.5 sec and hold it there and the transmission will shift fine.
Also, if you accelerate to about 1.100-1.200 rpm then hold it there for about one second then accelerate again the transmission will shift fine.
It's weird to say the least...
I ended up trading the car in for a new one with the 9G transmission. I just couldn't take the crappy shifting anymore.
Thread Starter
Member
Joined: Dec 2019
Posts: 160
Likes: 14
2016 C300 w/ sport package
Welcome to the club! I have complained to the dealer countless times because of the exact same issue. They did re-adaptation a couple of times and software updates, but it didn't help. After test driving several model years I came to realize that Benz introduced a change in the transmission software mid 2016. Anything built before shifts fine. Anything built after shifts like... well, you already know.
I have posted videos on youtube about the issue:
https://youtu.be/0Iqvzv00ZNY
https://youtu.be/P2oTpW4vU7o
Ask a Mercedes indy shop to check for a software update for your transmission. Don't trust the dealership!
I believe the real issue has something to do with the acceleration and timing. If you keep gradually depressing the acceleration more and more for over 0.7 seconds then you got the long 1st gear. Try depressing it quickly to your desired point within 0.5 sec and hold it there and the transmission will shift fine.
Also, if you accelerate to about 1.100-1.200 rpm then hold it there for about one second then accelerate again the transmission will shift fine.
It's weird to say the least...
I ended up trading the car in for a new one with the 9G transmission. I just couldn't take the crappy shifting anymore.
I have posted videos on youtube about the issue:
https://youtu.be/0Iqvzv00ZNY
https://youtu.be/P2oTpW4vU7o
Ask a Mercedes indy shop to check for a software update for your transmission. Don't trust the dealership!
I believe the real issue has something to do with the acceleration and timing. If you keep gradually depressing the acceleration more and more for over 0.7 seconds then you got the long 1st gear. Try depressing it quickly to your desired point within 0.5 sec and hold it there and the transmission will shift fine.
Also, if you accelerate to about 1.100-1.200 rpm then hold it there for about one second then accelerate again the transmission will shift fine.
It's weird to say the least...
I ended up trading the car in for a new one with the 9G transmission. I just couldn't take the crappy shifting anymore.
Senior Member
Joined: Nov 2016
Posts: 268
Likes: 21
2017 Mercedes-Benz C300, 2017 Mercedes-Benz GLC300
I don't know your location, but there is a place in the GTA that have helped other people with this issue.
Unfortunately I only found them after I traded in my 2017 C300.
