Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2002 Volkswagen EuroVan BaseFACTORY OEM SERVICE PROCEDURE
2.8L VR6 (Engine Code AES)
- Ensure battery voltage is at least 11.5 volts. Ensure fuel pump fuse No. 18 is okay. See Figure . Turn ignition off.
- Relieve fuel system pressure. See FUEL SYSTEM PRESSURE RELEASE (2.8L VR6, ENGINE CODE AES) .
- Connect Pressure Gauge (VAG 1318), or equivalent, at fuel supply line/hose in engine compartment. Ensure shut-off lever is closed (at 90 degrees to fuel flow, position B), and fuel hose is in a measuring container. See Figure .
- Remove fuel pump relay from relay panel. Connect Remote Control Switch (VAG 1348) between battery positive source and fuel pump terminal. See Figure .
- Operate remote control at short intervals until a pressure of about 44 psi (3 bar) has built up. If pressure builds up too high, lower excess pressure by carefully opening tap.
- Observe pressure drop. After 10 minutes, fuel pressure must not drop below 32 psi (2.2 bar). Check line connections for leaks and/or replace fuel pump if necessary.
Factory Service Tools
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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