Audi 4.2-litre V8 FSI - Fuel system; Fuel system in the Audi Q7;RS4

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Reference
For an exact description of the system's
operating mode, refer to SSP 325 -
Audi A6 ‘05 Engines and Transmissions.
The only different feature of this system is
that it has high-pressure pumps.
Fuel system
Fuel system in the Audi Q7/RS4
Leakage line
Fuel filter
Fuel pressure sender,
low pressure G410
Fuel metering
valve N290
High-pressure
fuel pump 2
Fuel metering
valve -2- N402
High-pressure
fuel pump 1
Low-pressure system in the Audi RS4
High-pressure
Low pressure
depressurised
Low-pressure system in the Audi Q7