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Here you go:
B46 Engine
7. Fuel System
There is no fuel pressure sensor in the low-pressure range of the fuel system. The fuel low pressure is calculated in the Digital Motor Electronics based on a mathematical model. The power consumption of the electric fuel pump also provides information on the fuel low pressure. If the power consumption is high, this means that a high fuel - low pressure exists and if the power consumption is low, this means that a lower fuel - low pressure prevails.
The following table provides information on the technical data of the electric fuel pump.
Technical data
The electric fuel pump becomes impermissibly hot with excessive dry running > 1 minute. There is a risk of a component fault
Engine speed range 2600 – 6000 rpm
Pressure area 2.0 - 6.5 bar
Supply voltage 12 V
Delivery rate at 3200 rpm and 3.5 bar > 80 liters/60 minutes
Delivery rate at 4250 rpm and 6.3 bar > 105 liters/60 minutes
Delivery rate at 5600 rpm and 5.3 bar > 190 liters/60 minutes
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