Checking fuel pump delivery rate: VW Golf V / Jetta (AVQ, AZV, BGW, BHW, …)

🧭 Before you start

Fits: VW Golf V / Jetta (1K, 2003–2009); platform code 5M1

• Special tools named: VAS 6550/1
• Renewed: defective line

Don't miss

• Separate plug-in connector (A) (completely black or with black marking) of fuel supply line.
• The fuel pump is now actuated for 30 seconds.
• Press in securing ring to release fuel line.
• Pull fuel supply line (black or black marking) (A) off fuel delivery unit.

🔧 Engine codes this applies to

📋 Procedure

1. Separate plug-in connector (A) (completely black or with black marking) of fuel supply line.
2. Connect VAS 6550/1 pressure tester line to fuel supply (A).
3. Guide open end of line into measuring container.
4. Connect vehicle diagnostic tester and perform guided function "“checking electric fuel pump(s)”". [Note: The fuel pump is now actuated for 30 seconds.]
5. After fuel flow ceases, read quantity of fuel delivered on measuring container, specification: min. 1000 ml/30 s.

6. Check fuel supply line between fuel pump and engine compartment for kinks, crushes or damage.
7. If necessary, renew defective line and repeat test.
8. If it is not kinked, crushed or damaged, remove rear seat bench General body repairs, interior72Rear seats.
9. Detach carpet under seats and fold it back. General body repairs, interior70Load and luggage compartment trim; Removing and installing luggage compartment floor
10. Remove cover from fuel delivery unit. [Note: Press in securing ring to release fuel line.]
11. Pull fuel supply line (black or black marking) (A) off fuel delivery unit.
12. Connect VAS 6550/1 pressure tester line to fuel supply (A).
13. Guide open end of line into measuring container.
14. Connect diagnostic tester and perform the guided function "“Checking electric fuel pump(s)”". [Note: The fuel pump is now actuated for 30 seconds.]
15. After fuel flow, read quantity of fuel delivered on measuring container, specification: min. 1000 ml/30 s.
16. Check voltage supply and current draw of fuel pump.

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