Hey,
I just removed the injectors from a 91 300ce in order to replace them with newer ones. When I pulled the injectors, all I noticed were the injectors and the injector seals tightly placed, but no injector o-ring. I asked a mercedes mechanic and he said that when replacing injectors, you only need the injector and the seal. Now, if that is so, why is an injector o-ring always listed when searching for injector parts?

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