Pic. 4.85. Location of the fuel tank on a sedan
Pic. 4.86. The location of the fuel tank on the station wagon
The Mercedes E-Class fuel tank is made of steel and is located behind the rear seat (pic. 4.85), for station wagons - a little further, under the luggage compartment (pic. 4.86). Depending on the car model, the tank capacity is different. So, the sedan tank holds 65 liters, and the station wagon tank holds 70 liters of diesel fuel, with about 8 liters being a reserve.
A fuel reserve sensor is installed on the top side of the tank.
The pipelines for supplying and discharging fuel pass under the bottom of the vehicle to the engine. They are made of pressure-resistant material and equipped with clamps or screw-on clamps.
Ventilation system
For a reliable fuel supply, it is important to vent the tank so that vacuum is not created. When refueling, a sufficient amount of air must escape from the tank. In addition, the tank must be cooled. The air supply and exhaust pipes are inserted into the tank filler fitting. The air removal tube is connected to the expansion tank, which binds and condenses the outgoing fuel vapors.