Mumen, I think I have the same problem as you described with the shelf ram. The hydraulic shelf ram is leaking and I think I would need to replace the seals by myself as I can't find anyone who can do so. The Peugeot garage can only replace the whole shelf cylinder unit which costs a huge amount of money.
I don't have any experience with repairing or replacing a seal in a ram, but I think I'll be able to find out how to do it. But how can you get the exact same size of the seals needed for this ram? Are these seals using coming sizes/dimensions? Or do you need to get them custom made? I guess the Peugeot garage wouldn't be able to provide these seals as they would simply say you need to replace the whole unit (and not just only the ram).
Lawrence
March 2014