From there, it is drawn back to the right side of the tank by way of a suction line. Your fuel filter is an integral part of the fuel delivery system. Return fuel flows back through the left side plate and into the left side of the fuel tank. Based on data from 11 vehicles, 278 fuel-ups and 83,157 miles of driving, the 2003 Mercedes-Benz C230 gets a combined Avg MPG of 23. Instead, this vehicle uses two sending units, one on each side and a single fuel pump, called a delivery module, located inside the right hand side of the fuel tank.įuel is pumped from the delivery module, through a plastic line inside the tank, to the left side closing plate or top plate and up to the fuel filter and the engine through the fuel line. This is due to its unique shape, which allows a prop shaft or drive shaft to pass beneath the tank to the rear differential.ĭue to the unique shape of the fuel tank, a single fuel pump and sending unit wouldn’t work, since it wouldn’t be able to draw fuel from one side of the tank. The fuel tank in this vehicle is commonly known as a saddlebag style tank. Technical data Fuels, coolants, lubricants, etc. The fuel tank in this vehicle is commonly known as a saddlebag style tank. Let’s look at the fuel system in a 2003 Mercedes E55 AMG sedan as an example. Lets look at the fuel system in a 2003 Mercedes E55 AMG sedan as an example. The truth is once you understand how their systems operate, they’re not that different from other modern vehicles, from a technical standpoint. Mercedes-Benz makes some of the most advanced vehicles on the road today, and they’re often thought of as being too difficult to work on.
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