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Introduction of the New smart fortwo coupé and smart forfour | Model Series 453
Fuel system
Powerplant
M281
A non-return fuel system is used for the fuel supply in model
series 453.
The fuel is delivered to the engine by a vertical delivery
module integrated in the fuel tank. On this system, the fuel
pump supplies the required quantity of fuel at the required
pressure (max. 5.2bar) to the fuel injection system (fuel dis-
tribution rail).
The fuel tank fill level is measured by a float-and-lever sensor
and evaluated and displayed on the instrument cluster.
View of M281 fuel system (ECE/RoW)
1 Pump
2 Delivery module with integrated filter and fuel pressure regulator
3 Injection nozzle
4 Fuel distribution rail
– This printout will not be recorded by the update service. Status: 06/2014 –
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