Hello Together after now about 50000 self driven km with my Lupo 3l I had to find out unfortunately that my gear changer was leaking, so I bought the sealing set for 45euro at ebay. With the set is even an instruction for the expansion, however, one should already bring some technical understanding with it. In my opinion the weak point of the gear changer of the shaft sealing ring, at the bottom, which showed already clear wear symptoms with me. The WDR can be changed with some skill in a relatively short time itself and then there is no oil from so on and for itself a great thing, a new gear changer was not in question for me. Unfortunately I had to find afterwards that not the worn-out WDR is my problem, but the cover of the gear changer. The said lid shows a hair tear, which only becomes visible when the gear changer is actuated. I bought a leaky gear changer today at the scrap yard and will exchange the lid on the weekend. MFG Tommy Attachment: Image of the open gear changer with the problem zone.