Checking delivery rate of fuel system pressurisation pump G6, engine codes CBAA, CBAB, CBBB, CBDA, CBDB, CBDC, CJAA, CFFA, CFFB, CFGB, CFHB, CFHC, CLCA, CLJA — VW

🧭 Before you start

Fits: VW Golf VI (5K, 2008–2013)

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

Don't miss

• Separate quick-release coupling (A) (completely black or with black marking) of fuel supply line. Separate connectors .
• The fuel pump is now activated for 30 seconds.
• Pull fuel supply line (black or black marking) (A) off fuel delivery unit.

🔧 Engine codes this applies to

📋 Procedure

1. Separate connection (A) from supplementary fuel pump V393 or fuel pump 2V277.
2. Separate quick-release coupling (A) (completely black or with black marking) of fuel supply line. Separate connectors (see the separate procedure).
3. Connect VAS 6550/1 pressure tester cable to fuel supply (A).
4. Guide open end of line into measuring container.
5. Connect diagnosis tester and perform the guided function "“Checking electric fuel pump(s)”". [Note: The fuel pump is now activated for 30 seconds.]

6. After fuel flow, read quantity of fuel delivered on measuring container. Specification: at least 1000 ml/30 s
7. Check fuel supply line between fuel pump and engine compartment for kinks, crushes or damage.
8. If necessary, renew defective line and repeat test.
9. If the line is not kinked, squashed or damaged, proceed as follows:
10. Remove rear bench seat General body repairs, interior 72. Rear seat; Removing and installing bench seat / individual seats.
11. Fold carpet to the side or forwards.
12. Remove cover from fuel delivery unit (see the separate procedure).
13. Pull fuel supply line (black or black marking) (A) off fuel delivery unit.
14. Connect VAS 6550/1 pressure tester cable to fuel supply (A).
15. Guide open end of line into measuring container.
16. Connect diagnosis tester and perform the guided function "“Checking electric fuel pump(s)”". [Note: The fuel pump is now activated for 30 seconds.]
17. After fuel flow, read quantity of fuel delivered on measuring container. Specification: at least 1000 ml/30 s
18. Check voltage supply and current draw of fuel pump.

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