Checking the fuel delivery rate of the fuel pump for delivery G6 (0.5 bar low-pressure fuel system) — VW
Checking the fuel delivery rate of the fuel pump for delivery G6 (0.5 bar low-pressure fuel system) on VW: 17 steps, engines CBAA, CBAB, CBBA, CBBB.
Workshop procedure for VW — the exact step sequence and torque figures, straight from real workshop data.
🧭 Before you start
Fits: VW Tiguan I (5N, 2007–2016)
- Special tools named: VAS 6551/1
- Renewed: defective line
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- Separate quick-release fastener (A) (black or with black marking) of fuel supply line. Separate plug-in connectors .
- The fuel pump is now actuated for 30 seconds.
- Make sure that fuel supply line between fuel pump and engine compartment is not kinked, crushed or damaged.
- Pull fuel supply line (black or black marking) (A) off fuel delivery unit. Separate plug-in connectors .
📐 48 workshop diagrams for CBAA
Real factory drawings for this job — timing marks, bolt locations and routing. Locked in the free view.
📋 Procedure
- Disconnect connector (A) on supplementary fuel pump V393 or fuel pump 2V277.
- Separate quick-release fastener (A) (black or with black marking) of fuel supply line. Separate plug-in connectors .
- Connect line of pressure tester VAS 6551/1 to fuel supply (A).
- Feed open end of line in the measuring tank.
- Connect vehicle diagnostic tester, and then carry out guided function "“Checking electrical fuel pump(s)”". [Note: The fuel pump is now actuated for 30 seconds.]
- When fuel stops flowing, read amount of fuel delivered as indicated on measuring container. Specification: min. 1000 ml/30 s
- Make sure that fuel supply line between fuel pump and engine compartment is not kinked, crushed or damaged.
- If necessary, renew defective line, and repeat test.
- If it is not kinked, crushed or damaged, remove rear bench seat General body repairs, interior72Rear seats; Removing and installing bench seat / individual seats.
- Detach carpet under seats, and fold it back General body repairs, interior70Trims, interior; Assembly overview - foot rest and floor covering.
- Remove cover of fuel delivery unit.
- Pull fuel supply line (black or black marking) (A) off fuel delivery unit. Separate plug-in connectors .
- Connect line of pressure tester VAS 6551/1 to fuel supply (A).
- Feed open end of line in the measuring tank.
- Connect vehicle diagnostic tester, and then carry out guided function "“Checking electrical fuel pump(s)”". [Note: The fuel pump is now actuated for 30 seconds.]
- When fuel stops flowing, read amount of fuel delivered as indicated on measuring container. Specification: min. 1000 ml/30 s
- Check voltage supply and current draw of fuel pump.
Ask TorqFix about your VW CBAA — it answers with the exact sequence for that engine and the workshop drawing for each step. First question is free after a 20-second sign-up, no card.
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Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 20 Sep 2026.