MB uses these same clamps on the fuel system, I just changed out the fuel filter on my SLK and had to break two off. I grabbed the protrusion with pliers and gave it a twist or two and that is all that was needed for it to break open. I replaced them with standard hose clamps which worked fine. I agree these are only intended for one-time use and replacement of them with a normal hose clamp will be perfectly functional.

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Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz