Checking delivery quantity of left pump: VW Touareg I (AXQ, AYT, BHX, BJN, …)

🧭 Before you start

Fits: VW Touareg I (7L, 2002–2010)

• Renewed: fuel filter

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• Operate remote control 15 seconds again. At least 800 cm3 fuel per 15 seconds must be delivered.
• Operate remote control 10 seconds. At least 800 cm3 fuel per 10 seconds must be delivered.

🔧 Engine codes this applies to

📋 Procedure

1. Connect remote controlV.A.G 1348/3 A with adapter cable - PhaetonV.A.G 1348/3-3 to connection (arrow) of fuel pump relay for left fuel delivery unit.
2. Empty measuring container before making measurement.
3. Operate remote control 15 seconds again. At least 800 cm3 fuel per 15 seconds must be delivered.
4. In addition, check both fuel delivery units.
5. To do so, connect adapter cable - PhaetonV.A.G 1348/3-3 to connections of relays for left and right fuel delivery units.

6. Empty measuring container before making measurement.
7. Operate remote control 10 seconds. At least 800 cm3 fuel per 10 seconds must be delivered.
8. Check fuel lines for possible restrictions (kinks) or blockages.
9. Renew fuel filter.
10. Check current draw of fuel pumps .

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