TT Quattro Coupe V6-3.2L (CBRA) (2008)
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Observe pressure drop on pressure gauge.
If pressure drops again:
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Check line connections, O-rings on fuel rail and injectors for leaks.
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Check pressure gauge for leaks.
If pressure does not drop:
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Open shut-off valve of pressure gauge (lever in direction of flow).
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Remove rear seat bench
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Unclip catches - arrows - of right connector flange cover.
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Disconnect fuel return line - arrow - by pressing release button.