Checking delivery rate, engine code CCZA: VW Golf V / Jetta 2.0 (CCZA)

🧭 Before you start

Fits: VW Golf V / Jetta (1K, 2003–2009); platform code AJ5

• Special tools named: VAS 5052
• Renewed: flange with fuel filter, fuel delivery unit

Don't miss

• Make sure that drain tap is closed and cut-off taps are open.
• Operate remote controlV.A.G 1348/3A. Then slowly close shut-off tap (arrow) until a pressure of 4 bar is displayed on pressure gauge. From this point on do not move position of shut-off tap.

🔧 Engine codes this applies to

📐 67 workshop diagrams for CCZA

Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.

📋 Procedure

1. Connect vehicle diagnosis and service information systemVAS 5052 B to vehicle.
2. Select Guided functions in VAS 5052 B.
3. Carry out vehicle identification.
4. Select Engine.
5. Select Checking fuel delivery rate, quick test.

6. Follow instructions on vehicle diagnosis and service information systemVAS 5052 B.
7. ⚠ The fuel system is pressurised!Wear eye protection and protective clothing to avoid possible injury and skin contact.Before loosening line connections, wrap a cloth around the connection. Then release pressure by carefully pulling off line. — Pull fuel supply line (arrow) off fuel filter.
8. Connect pressure testerVAS 6550 to fuel supply line with adapterVAS 6550/1. Hold adapterVAS 6550/2 in a measuring container.
9. Make sure that drain tap is closed and cut-off taps are open.
10. Operate remote controlV.A.G 1348/3A. Then slowly close shut-off tap (arrow) until a pressure of 4 bar is displayed on pressure gauge. From this point on do not move position of shut-off tap.
11. Drain measuring container.
12. The delivery rate of the fuel pump depends on the battery voltage. Therefore also connect multimeterV.A.G 1715 to contacts (1) and (5) of adapterVAS 5565.
13. Operate remote control for 60 seconds while measuring voltage at fuel pump.
14. Compare quantity of fuel delivered with specification.
15. Remove cap from fuel filler neck and repeat check. If fuel delivery rate is now reached, check fuel tank breather.
16. Remove fuel delivery unit and check filter strainer for soiling.
17. If no fault is found here either, renew flange with fuel filter.
18. Repeat check.
19. Fuel pump defective, renew fuel delivery unit .

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