<<SOFT TOP FLUID, YES! ONLY IN A MERCEDES. >>
Also in the old GM converts, (68-72 Cutlass, Chevelle, etc). Only the system was sealed, and required bleeding after filling...many times I crawled around the trunk, before I repaired my leaking hydraulic cylinder!
1989 560SEL (172k)
1989 325IC (122K)
2004 Suzuki Volusia LE (3500 miles)
2005 Yamaha Road Star (20 K miles)