2014 Mercedes ML 63 AMG
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Joined: Jan 2024
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2014 Mercedes ML 63 AMG
2014 Mercedes ML 63 AMG
I have a 2014 Mercedes ML63 AMG. The vehicle has 130k on it. Owned since 97k and have only had to replace one wheel bearing, the left front shock, and front breaks and pads. Generally, it runs and drives great. Previous owner religiously maintained the vehicle at Mercedes dealerships, which is the reason i bought it with the amount of miles it had on it.
Reason for the post the Transmission:
When its warm and up to full operating temperature, it runs and shifts really well. However, when its cold (i live in the northeast) the transmission runs horribly. It stutters, revs high just before it shifts, and generally feels like it needs replacement. Its that bad. When it warms up, it goes back to normal.
Does anyone know why that is? Or heard of that happening?
Appreciate any insight!
Reason for the post the Transmission:
When its warm and up to full operating temperature, it runs and shifts really well. However, when its cold (i live in the northeast) the transmission runs horribly. It stutters, revs high just before it shifts, and generally feels like it needs replacement. Its that bad. When it warms up, it goes back to normal.
Does anyone know why that is? Or heard of that happening?
Appreciate any insight!
Senior Member
Joined: Oct 2023
Posts: 472
Likes: 239
From: New Hampshire
ML 63 AMG
Originally Posted by Greenwave;[url=tel:8912601
8912601[/url]]I have a 2014 Mercedes ML63 AMG. The vehicle has 130k on it. Owned since 97k and have only had to replace one wheel bearing, the left front shock, and front breaks and pads. Generally, it runs and drives great. Previous owner religiously maintained the vehicle at Mercedes dealerships, which is the reason i bought it with the amount of miles it had on it.
Reason for the post the Transmission:
When its warm and up to full operating temperature, it runs and shifts really well. However, when its cold (i live in the northeast) the transmission runs horribly. It stutters, revs high just before it shifts, and generally feels like it needs replacement. Its that bad. When it warms up, it goes back to normal.
Does anyone know why that is? Or heard of that happening?
Appreciate any insight!
Reason for the post the Transmission:
When its warm and up to full operating temperature, it runs and shifts really well. However, when its cold (i live in the northeast) the transmission runs horribly. It stutters, revs high just before it shifts, and generally feels like it needs replacement. Its that bad. When it warms up, it goes back to normal.
Does anyone know why that is? Or heard of that happening?
Appreciate any insight!
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Joined: Jan 2024
Posts: 3
Likes: 1
2014 Mercedes ML 63 AMG
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Joined: May 2021
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From: US
2008 E350, 2012 ML350, 2014 E350, 2015 ML350
It is supposed to be a full oil change + filter. However, not all service people do full oil replacement since some do not flush the torque-converter. Even more reason to shorten the OilChangeInterval
Attached is the service list for 130K and 140K for 2014.
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MB ML63 2013
I have a 2014 Mercedes ML63 AMG. The vehicle has 130k on it. Owned since 97k and have only had to replace one wheel bearing, the left front shock, and front breaks and pads. Generally, it runs and drives great. Previous owner religiously maintained the vehicle at Mercedes dealerships, which is the reason i bought it with the amount of miles it had on it.
Reason for the post the Transmission:
When its warm and up to full operating temperature, it runs and shifts really well. However, when its cold (i live in the northeast) the transmission runs horribly. It stutters, revs high just before it shifts, and generally feels like it needs replacement. Its that bad. When it warms up, it goes back to normal.
Does anyone know why that is? Or heard of that happening?
Appreciate any insight!
Reason for the post the Transmission:
When its warm and up to full operating temperature, it runs and shifts really well. However, when its cold (i live in the northeast) the transmission runs horribly. It stutters, revs high just before it shifts, and generally feels like it needs replacement. Its that bad. When it warms up, it goes back to normal.
Does anyone know why that is? Or heard of that happening?
Appreciate any insight!
Member
Joined: Jul 2010
Posts: 166
Likes: 9
From: Castle Rock, CO
'21 GLE53, ‘11 E63, '13 M3
Mine is a harsh 5-4 downshift when cold.
We suspected a faulty valve body and had it replaced today. When trans oil temp is cold from 45F-70F the downshift is hard. As it warms up shifts totally fine.
curious to see what happens with this thread.
curious to see what happens with this thread.
Trending Topics
Junior Member
Joined: Mar 2020
Posts: 33
Likes: 7
From: Phoenix, AZ
2014 ML63 AMG
you can also try to reset it:
Turn the key to position 2. You should see all the dash lights come on. Do NOT start the car. Position II: You should hear two clicks and all your dash lights should turn on. Do not start the engine.
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.
Wait. Continue to keep the gas pedal pressed for at least 10 seconds.
Turn key to OFF, position 0. Don’t remove the key. Some models may need the key to be removed.
Release the gas pedal.
Wait 2 minutes. During this process, key is left in the ignition in the OFF position.
Start the car and drive.
Once you perform this procedure the Engine Control Unit (ECU) and Transmission Control Unit (TCU) will work together to learn how you drive by monitoring your driving pattern. After you follow this programing method of the TCU / ECU drive the car for 15 min. Do not race the car, unless that’s how you plan on driving all the time. You should have a transmission that shifts smooth and normal. You may feel like you have a new transmission!
Turn the key to position 2. You should see all the dash lights come on. Do NOT start the car. Position II: You should hear two clicks and all your dash lights should turn on. Do not start the engine.
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.
Wait. Continue to keep the gas pedal pressed for at least 10 seconds.
Turn key to OFF, position 0. Don’t remove the key. Some models may need the key to be removed.
Release the gas pedal.
Wait 2 minutes. During this process, key is left in the ignition in the OFF position.
Start the car and drive.
Once you perform this procedure the Engine Control Unit (ECU) and Transmission Control Unit (TCU) will work together to learn how you drive by monitoring your driving pattern. After you follow this programing method of the TCU / ECU drive the car for 15 min. Do not race the car, unless that’s how you plan on driving all the time. You should have a transmission that shifts smooth and normal. You may feel like you have a new transmission!
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Senior Member
Joined: Mar 2025
Posts: 406
Likes: 147
From: Toronto
2025 AMG G 63 SUV /// 2025 AMG GT 63 S E Performance 4 Door Coupé
Sounds like a classic filter clogged and fluid low/old issue. Could also be the TCU acting up from getting bad signals when cold. I’d suggest what @mcamp001 said about resetting the TCU ( very detailed and awesome instructions btw 
)
Questions: Do you ever smell a burning scent? When warm or cold do you notice any slipping? Any leaking? Might not make it all the way to the floor, gotta get under and see if it’s wet. Any whirring noises when driving? Finally, have you noticed any delay in shifting even when warm?
If the TCU reset doesn’t work and yes was answered to any of the above questions, I would recommend finding a reputable Merc repair shop or Euro Trans shop in your area and have the transmission properly serviced. Full Flush, New OEM Filter and the proper Trans Fluid to the proper level.
If that still doesn’t fix it you could be looking at solenoid issues potentially.
Good luck and let us know how you ended up or what the actual problem was!
Cheers,
)Questions: Do you ever smell a burning scent? When warm or cold do you notice any slipping? Any leaking? Might not make it all the way to the floor, gotta get under and see if it’s wet. Any whirring noises when driving? Finally, have you noticed any delay in shifting even when warm?
If the TCU reset doesn’t work and yes was answered to any of the above questions, I would recommend finding a reputable Merc repair shop or Euro Trans shop in your area and have the transmission properly serviced. Full Flush, New OEM Filter and the proper Trans Fluid to the proper level.
If that still doesn’t fix it you could be looking at solenoid issues potentially.
Good luck and let us know how you ended up or what the actual problem was!
Cheers,
