Q7 Quattro V6-3.6L (BHK) (2007)
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In button field - 1 -, press 1 4 0 buttons for "Display Group 140" and confirm entry by pressing Q button.
Display on (VAS 5051B):
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Check read out for fuel pressure in fuel rail in display field - 3 -.
Example:
3
40.63 bar
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Disconnect electrical connector - arrow - on fuel metering valve (N290) on lower left high pressure pump at rear of engine.