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Michael Warfield
Michael Warfield, Factory Mercedes-Benz Technician
Category: Mercedes
Satisfied Customers: 3142
Experience:  Mercedes-Benz Master Certified technician
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How can I check fuel pump pressure on my 04 C230 kompresser

Customer Question

How can I check fuel pump pressure on my 04 C230 kompresser 4 cylinder, supercharged
Submitted: 9 months ago.
Category: Mercedes
Expert:  Michael Warfield replied 9 months ago.

Hi, my name is ***** ***** am happy to assist you today! You will need to either rent a fuel pressure gauge at a local auto part store (If available) or buy one such as this. Once you have obtained the fuel pressure gauge, go the fitting on the fuel rail and screw the tester on. Start the engine and observe the fuel pressure. It should be in the 50-60psi range at idle. I've attached a picture of the location of the fuel pressure test port on the engine. You will have to just pop off (requires a bit of force) the black rectangular cover on top of the engine to access the port. Please let me know if you have any more questions before you decide to rate me, thanks!