Fuel System; Fuel System In The Audi Q7/Rs4 - Audi 4.2-litre V8 FSI Service Training

Fuel system

Fuel system in the Audi Q7/RS4

Fuel metering
valve -2- N402
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.
High-pressure
Low pressure
depressurised
30
High-pressure
fuel pump 2
High-pressure
fuel pump 1
Fuel pressure sender,
low pressure G410
Low-pressure system in the Audi Q7
Low-pressure system in the Audi RS4
Fuel metering
valve N290
Leakage line
Fuel filter