There is no offense, you are just wrong. I love a good technical arguement. You know how it works, tell me what pressure they regulate and the effect on the system. I told you what I think. I hope your excuse for not knowing how it works is that they had already thrown that system away before you started working on MBs. you see I was working for MB when they brought out the first K-jet and I have been in constant touch every day since they did.

But it doesn't matter who did what. They are what they are and I have expalined their function as I understand the system. So it is your turn to explain to me what your concept of their purpose is. Pay close attention to their location in the system its a hint that it is in the fuel return where pressure plays no part of the system. If you have a good arguement you can teach me something, but just reading a poor translation from a parts book don't get it for me. I'm more interested in what the service manual says they do.

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Steve Brotherton
Continental Imports
Gainesville FL
Bosch Master, ASE Master, L1
33 years MB technician