ML63 AMG (W166) 2011 -2015 (Replaced by GLE63)

2014 Mercedes ML 63 AMG

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Old 01-24-2024, 02:23 AM
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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!


Old 01-24-2024, 12:09 PM
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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!
What does the transmission fluid and filter maintenance records look like? Fluid level could be off.
Old 01-24-2024, 02:58 PM
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2014 Mercedes ML 63 AMG
Originally Posted by Joshinator99
What does the transmission fluid and filter maintenance records look like? Fluid level could be off.
There was a “transmission service” done at the dealership at 75k. I believe that is just an “oil change” for the transmission. Regardless i plan on having another transmission service done next month.
Old 01-24-2024, 03:07 PM
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2008 E350 (W211 @170K), 2012 ML350 (W166 @119K), 2014 E350 Sport (W212 @96K), 2015 ML350 (W166 @92K)
Originally Posted by Greenwave
There was a “transmission service” done at the dealership at 75k. I believe that is just an “oil change” for the transmission. Regardless i plan on having another transmission service done next month.
The maintenance for that 7G transmission is 70K miles. Some think it is too long, and rather shorten it a bit, say 50K->60K.. The 2nd service will then be @100K-120K.. It seems yours is asking for service

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.
Attached Files
File Type: pdf
MY14_130_140K_Service.pdf (707.4 KB, 40 views)
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Old 01-24-2024, 03:44 PM
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2014 Mercedes ML 63 AMG
Thank you very much. I really appreciate the insight!
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Old 02-21-2024, 05:12 PM
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Originally Posted by Greenwave
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!
Mine is 2013 ML63 and had the same identical issue when I first road tested...Drained/Replaced tranmission oil and filter...Inmediately runs like a brand new..flawless..hot or cold weather...
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Old 02-27-2024, 07:48 PM
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‘14 ML63, ‘11 E63, ‘05 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.

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