Estate boot floor strut

[rsv clk]

Hi I have a E55 estate and the wheel cover lid/floor the strut is not holding it up but I am struggling to find the correct one the most ones that I can find are the Tailgate can anyone let me know the part number
Thanks

 

[Petrol Pete]

I assume there is nothing printed on the strut ? They are widely available if you just know the Nm rating. The rest is just measuring the old one.

 

[SpikyMikey]

Dunno if this helps or not : looks a tad confusing to me with 3 different struts pictured, by might make sense to you?
FG 211.276 - LOAD COMPARTMENT FLOOR > Mercedes EPC Online > nemigaparts.com