I would have a hose clamp ready in case you break this. I have sucessfully removed one of these and re-installed them. But I they also break easy when trying to remove.

Try and bend the little tab that is angled holding it in with a needle nose. Once the tab is pointing up and not angled then take a flat edge screw driver and try and pry the clamp up, it will pop off. That bump looking thing sticking up is compressed in to make it tight. Sometimes you can find a screwdriver that fits in there and try and bend the sides out relieving the pressure of the clamp. To re-install it fit the tab in and bend the angle back down, then crimp the bump looking thing in with a pliers and it should tighten up.

But with that said, its sometimes alot easier to just get a hose clamp that fits.

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1999 E300 TD 190,000
1996 Passat TDI 225,000-sold
1996 E300 120,000-sold
1998 Jetta TDI 186,000 -sold
1983 Chev Suburban C20 6.2-sold