SL/R231: Hydraulic Fluid Replacement (ABC and Roof/Trunk) - When to replace?
Thread Starter
Newbie
Joined: Jun 2008
Posts: 7
Likes: 6
'13 SL63
Hydraulic Fluid Replacement (ABC and Roof/Trunk) - When to replace?
Hi guys,
I tried to search on if or when I should replace the hydraulic fluid in my ABC suspension system and the Roof/Truck system.
So far everything is working, and I don't think I have any leaks.
I have a 2013 SL63 with about 55K miles.
My trunk does struggle to open when the outside temperature falls below ~40 degrees. That got me thinking that maybe I should look into replacing the hydraulic fluid.
Do you guys change the ABC or Roof/Trunk fluid?
Thanks,
PCR
I tried to search on if or when I should replace the hydraulic fluid in my ABC suspension system and the Roof/Truck system.
So far everything is working, and I don't think I have any leaks.
I have a 2013 SL63 with about 55K miles.
My trunk does struggle to open when the outside temperature falls below ~40 degrees. That got me thinking that maybe I should look into replacing the hydraulic fluid.
Do you guys change the ABC or Roof/Trunk fluid?
Thanks,
PCR
Senior Member
Joined: Jan 2019
Posts: 475
Likes: 157
From: Philadelphia area
2014 SL65 AMG, 2018 S560
Hi guys,
I tried to search on if or when I should replace the hydraulic fluid in my ABC suspension system and the Roof/Truck system.
So far everything is working, and I don't think I have any leaks.
I have a 2013 SL63 with about 55K miles.
My trunk does struggle to open when the outside temperature falls below ~40 degrees. That got me thinking that maybe I should look into replacing the hydraulic fluid.
Do you guys change the ABC or Roof/Trunk fluid?
Thanks,
PCR
I tried to search on if or when I should replace the hydraulic fluid in my ABC suspension system and the Roof/Truck system.
So far everything is working, and I don't think I have any leaks.
I have a 2013 SL63 with about 55K miles.
My trunk does struggle to open when the outside temperature falls below ~40 degrees. That got me thinking that maybe I should look into replacing the hydraulic fluid.
Do you guys change the ABC or Roof/Trunk fluid?
Thanks,
PCR
Your trunk may just be the struts that hold the trunk open going bad. Does the trunk lid start to sag after it's open? That's the struts. Easy fix.
Thread Starter
Newbie
Joined: Jun 2008
Posts: 7
Likes: 6
'13 SL63
I've not heard of any change interval for the roof and trunk. For ABC it's best not to change it unless it needs it based on color.
Your trunk may just be the struts that hold the trunk open going bad. Does the trunk lid start to sag after it's open? That's the struts. Easy fix.
Your trunk may just be the struts that hold the trunk open going bad. Does the trunk lid start to sag after it's open? That's the struts. Easy fix.
I don't think the trunk sags, but I will take a look. Agreed that the struts are an easy fix.
Thanks,
BTW: I used to live in West Chester, now I'm in Wilmington. #gobirds!
Junior Member
Joined: Mar 2024
Posts: 23
Likes: 13
Sl400
Last month my wife’s GLC’s electric trunk would come back down after opening it’s a 2019 an never had issues, went to the MB dealer asked for twos struts and the inspector said to make an appointment for a diagnostic check to see in the closing motor engages early. I left. I then bought online two compatible lift-o-matic struts for 50 Euro each and the trunk works as a charm.
MBWorld Fanatic!
Joined: Feb 2004
Posts: 3,122
Likes: 222
From: Milton/Westport, MA USA
me: 2015 SL400 & 2015 ML400; wife: 2022 GLC Coupe; daughter: 2017 GLC SUV
Last month my wife’s GLC’s electric trunk would come back down after opening it’s a 2019 an never had issues, went to the MB dealer asked for twos struts and the inspector said to make an appointment for a diagnostic check to see in the closing motor engages early. I left. I then bought online two compatible lift-o-matic struts for 50 Euro each and the trunk works as a charm.
MBWorld Fanatic!
Joined: Jun 2012
Posts: 1,022
Likes: 231
From: In the minds of others rent free.
SL 400
I have never seen, nor heard of anyone replacing fluid in trunk struts. You just purchase two and swap them out. Many, many people have issues with the trunk creeping down in winter when temps drop. This forum covered it multiple times. When spring returns the trunk stays open as it should again. Just swap the trunk struts out...
Hi guys,
I have a 2013 SL63 with about 55K miles.
My trunk does struggle to open when the outside temperature falls below ~40 degrees. That got me thinking that maybe I should look into replacing the hydraulic fluid.
Do you guys change the ABC or Roof/Trunk fluid?
Thanks,
PCR
I have a 2013 SL63 with about 55K miles.
My trunk does struggle to open when the outside temperature falls below ~40 degrees. That got me thinking that maybe I should look into replacing the hydraulic fluid.
Do you guys change the ABC or Roof/Trunk fluid?
Thanks,
PCR
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