MB won't start today. Acts like it's out of gas. Suspect the fuel pump. I checked the leads up to pump with a continuity light and it doesn't seem have any juice going to it. Is there a Fuse? Autozone sell the pump for $200, but I sure hate to order it just to discover it need a fuse. Where is the fuse located? Can you sugguest any other test for the fuel pump?

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Your car has 2 fuel pumps!! But they last a long time unless something other than gas goes thru them. Sounds like the fuel pump relay is going "south". It's a black box under the hood that sends power to the pumps. Have the system tested, I'll bet its the problem.