GL Class (X166) 2013-2015 after facelift became GLS (X166)

Transmission Fluid Change

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Old Sep 18, 2024 | 09:21 AM
  #1  
Matt S.'s Avatar
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2014 GL450
Transmission Fluid Change

2014 GL450
75,000 miles

I have some service records for the car but nothing indicates an ATF change. Here is my question, and I realize this is not ideal, but $1,400 is out of the question right now and that's two different shops pricing.
If I was to get the car up to operating temp and extract the ATF from the check/dipstick tube then refill from there, would this be OK minus the filter being changed?
I'm aware that the typical refill is from the pan and I'm aware that the filter should really be changed, but new fluid alone can't hurt, right?
I'm not having any issues with the trans, but I feel like if I'm going to have this car for a long time, I have to make sure these fluid maintenance items are done. I love this money pit of a car.
ATF 134FE? How much?
I'm changing the diffs and transfer case fluids in the next two weeks and plan to flush the coolant system before winter as well.

Thanks

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Old Sep 18, 2024 | 05:29 PM
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2014 GL450, 1992 W140 300SD, 1993 W140 300SE, 1987 E30 Convertible
It is about for transmission service. Usually changed at 70-75k miles. You can change both filter and transmission just check out youtube
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Old Sep 18, 2024 | 11:47 PM
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1998 SL500,2011 GL550,2009 ML350,past 1995 E320 Cabrio ,2005 ML500,2006 ML500,1996 SL500,1972 280SEL
no dipstick

You have to change the atf from the drain plug. Pump it back up. I highly advise to download the steps and read them completely. If you are not comfortable pay a shop. I would change all fluids before 80k
. Tranny, brake, radiator, both diffs and transfer case, power steering ,
Good luck and if you can’t find the tranny steps let me know
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Old Sep 18, 2024 | 11:51 PM
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From: NE OHIO
1998 SL500,2011 GL550,2009 ML350,past 1995 E320 Cabrio ,2005 ML500,2006 ML500,1996 SL500,1972 280SEL
tranny fluid

Tranny fluid steps to changing. With the newer 7 speed make sure you have the correct inside filler tube.. there are green tubes and off white tube for different shaped pans.
https://mbworld.org/forums/c-class-w...ce-thread.html

Last edited by vesiadog; Sep 18, 2024 at 11:55 PM.
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Old Oct 6, 2024 | 06:35 AM
  #5  
2018GLE43's Avatar
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From: Toronto, Ontario
GLE43 AMG, GLE 400
Originally Posted by Matt S.
2014 GL450
75,000 miles

I have some service records for the car but nothing indicates an ATF change. Here is my question, and I realize this is not ideal, but $1,400 is out of the question right now and that's two different shops pricing.
If I was to get the car up to operating temp and extract the ATF from the check/dipstick tube then refill from there, would this be OK minus the filter being changed?
I'm aware that the typical refill is from the pan and I'm aware that the filter should really be changed, but new fluid alone can't hurt, right?
I'm not having any issues with the trans, but I feel like if I'm going to have this car for a long time, I have to make sure these fluid maintenance items are done. I love this money pit of a car.
ATF 134FE? How much?
I'm changing the diffs and transfer case fluids in the next two weeks and plan to flush the coolant system before winter as well.

Thanks
I was in the same boat like yours in the Spring 2024 (at 100km 2018 GLE43). I changed all fluids (ATF, Front/Center/Rear diff, coolant), Brake (every two years), Plug, main battery, clean/lube pano roof, detail clean under hood, and clay/detail paint. For ATF, you need to know your car what it takes -- probable MB 236.17. From my personal experience, you have my blessing just change fluid only without change the filter/pan. Good practice, change all fluids every 5 years. But if I were you, I would change the filter/pan due to it is plastic and 10 years old car (assume that the car never changed ATF/filter/pan before). You can start the engine to pump ATF out via cooler line and use small motor to pump in the fluid via drain plug.


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Old Oct 6, 2024 | 10:48 AM
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From: NE OHIO
1998 SL500,2011 GL550,2009 ML350,past 1995 E320 Cabrio ,2005 ML500,2006 ML500,1996 SL500,1972 280SEL
atf fluid change

I would change the fluid according to many write ups.. if you have a torque converter plug let it drain also. I would not start it up and drain .. way too many things can go wrong for a beginner. Break down and buy a change kit pump… well spent money. I have used mine 15-20 times or more changing fluid on many MB 7 speeds.
Spend some time reading and watching youtube videos . Here is a simple read thru
https://www.fcpeuro.com/blog/mercede...-transmissions
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Old Oct 6, 2024 | 10:58 AM
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From: NE OHIO
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atf fluid pump

https://www.ebay.com/itm/28491373503...mis&media=COPY
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