SL/R231: 2015 SL500 trunk lid wont stay up
Over the last year, my trunk lid has slowly lost its will to stay open. I'm assuming this is caused by the gradual failure of the two pistons to maintain their internal pressure and that I will have to replace them. So I have two questions:
1. Is replacement the only option?
2. There are two pistons on each side of the trunk lid. Do all four support the lid and thus all have to be replaced?
3. Is the replacement process challenging? Does it require any special tools other than the regular metric sets I already have?
4. How long do you expect it will take to replace them considering I've not done this repair before?
Thanks very much,
ASCETIK
Right side trunk lid pistons
Left side trunk lid pistons




https://mbworld.org/forums/sl-class-...ose-issue.html
Struts are cheap and a good first place to start without XENTRY.
Good Luck
Last edited by crconsulting; Apr 12, 2025 at 06:22 PM.
Over the last year, my trunk lid has slowly lost its will to stay open. I'm assuming this is caused by the gradual failure of the two pistons to maintain their internal pressure and that I will have to replace them. So I have two questions:
1. Is replacement the only option?
2. There are two pistons on each side of the trunk lid. Do all four support the lid and thus all have to be replaced?
3. Is the replacement process challenging? Does it require any special tools other than the regular metric sets I already have?
4. How long do you expect it will take to replace them considering I've not done this repair before?
Thanks very much,
ASCETIK
Right side trunk lid pistons
Left side trunk lid pistons



