mercedesbenz Workshop Repair Guides

Mercedes Benz Workshop Service and Repair Manuals

Fuel Supply Line > < Fuel Return Line|Locations
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Fuel Return Line: Description and Operation

The return line connects the pressure regulator and fuel tank with each other. The fuel flowing back from the pressure regulator passes through the inline 
fuel cooler to the fuel tank. The fuel is not under pressure in the return line. 

Fuel Supply Line > < Fuel Return Line|Locations