Fuel pressure sensor G247 - check — VW

🧭 Before you start

Fits: platform codes 6A1, 6A5

• Special tools named: VAS 5570

Don't miss

• Risk of functional interferences due to impurities.Safety measures regarding work on the fuel supply systems — Remove the Fuel pressure sensor G247.
• If the button (A) is pressed for 2 seconds, the light is switched on for 20 seconds.If the Measurement deviceVAS 6394/1 does not read 0 bar, perform the zero-point reset procedure operating manual.
• If the measurement values do not match, check the power cable connection between the Fuel pressure sensor G247 and the Engine control unit J623.

🔧 Engine codes this applies to

🔩 Torque settings

Values can differ between engine variants — check the code stamped on your block.

ℹ️ Always cross-check the exact figure against your vehicle's factory manual before final tightening — a wrong torque can damage the engine. These values are extracted from workshop data and may not cover every variant or revision.

📋 Procedure

1. ⚠ Risk of functional interferences due to impurities.Safety measures regarding work on the fuel supply systems — Remove the Fuel pressure sensor G247.
2. Lubricate the AdapterVAS 6394/3 sealing cone with clean engine oil and install it in the fuel rail, applying a torque of 22 Nm. — 22 Nm (16 lb-ft)
3. Remove the plug screw (2) and install the Fuel pressure sensor G247 in the Measurement deviceVAS 6394/1.
4. Connect the pressure line (1) of the Measurement deviceVAS 6394/1 to the AdapterVAS 6394/3.
5. Install the DSO adapter (3 pins)VAS 5570 between the vehicle and the Fuel pressure sensor G247.

6. Switch on the Measurement deviceVAS 6394/1 by briefly pressing the button (A) . [Note: If the button (A) is pressed for 2 seconds, the light is switched on for 20 seconds.If the Measurement deviceVAS 6394/1 does not read 0 bar, perform the zero-point reset procedure operating manual.]
7. Connect the .
8. Start the engine and leave it at idling speed.
9. In self-diagnosis, select the "“engine electronic system”" .
10. Next, select the "“measurement values”" .
11. In the drop-down list, select "“fuel pressure”" .
12. Compare the fuel pressure shown in the Measurement deviceVAS 6394/1 with the actual value shown in .
13. Check the fuel pressure in .
14. If the deviation is higher than 5 bar, replace the Fuel pressure sensor G247 .
15. Repeat the test with the new Fuel pressure sensor G247 and compare both values once again.
16. If the measurement values match, install the new Fuel pressure sensor G247.
17. If the measurement values do not match, check the power cable connection between the Fuel pressure sensor G247 and the Engine control unit J623.

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