My only experience was removing a cover from a rusted set of seat springs. Maybe it was the rust, but I could not get the cover out of the grove and ended up ripping the cover.

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1979 240D- 316K miles - VGT Turbo, Intercooler, Stick Shift, Many Other Mods - Daily Driver

1982 300SD - 232K miles - Wife's Daily Driver

1986 560SL - Wife's red speed machine