E8366M Electric Fuel Pump Module Assembly For 1990-2002 Volkswagen Cabrio/Golf/Jetta/Passat/Corrado/2.0L L4/2.8L

Extended cranking, intermittent stalling, low fuel pressure, weak acceleration, or an inaccurate fuel gauge can indicate a fault in the in-tank fuel pump module, but the vehicle must be tested before replacement. The BDFHYK E8366M is intended for selected Volkswagen Corrado, Passat, Golf, Jetta, and Cabrio gasoline applications. The 1990–2002 span does not apply to every model or engine combination. Confirm the exact model year, engine, chassis or production range, flange, connector, outlet layout, module height, float arm, and OE reference.

E8366M Fuel Pump Module for Selected Volkswagen Applications

Model and Engine Coverage

• Volkswagen Corrado: selected 1990–1992 1.8L supercharged and 1992–1995 2.8L applications; early chassis restrictions can apply
• Volkswagen Passat: selected 1991–1993 1.8L, 1993–1996 2.0L, and 1993–1997 2.8L applications
• Volkswagen Golf: selected 1993–1999 1.8L, 2.0L, or 2.8L applications
• Volkswagen Jetta: selected 1993–1999 1.8L, 2.0L, or 2.8L applications
• Volkswagen Cabrio: selected 1995–2002 2.0L applications

Engine code, chassis number, emissions configuration, and production date can be more precise than the model name. Corrado 1.8L applications require particular attention to the chassis break.

Match the Original Module and Chassis Configuration

Compare the removed assembly with the product images. Verify the flange diameter and indexing, electrical connector, fuel outlet count and angle, reservoir design, overall depth, sender resistance configuration, float-arm shape, strainer position, and locking method. Similar Volkswagen platforms can use physically different modules even when the displacement is the same.

E8366M OE and Interchange References

Common references include E8366M, SP8366M, 1HM919051M, 67873, FG0414, FG1122, P76326M, P76266, and P77088M. Additional supersessions may exist, so a reference number must be checked together with the installed module and vehicle identification data.

Diagnose the Volkswagen Fuel System Before Replacement

• Check battery voltage, fuse, fuel-pump relay, power supply, and ground.
• Measure pump current and voltage drop while the circuit is loaded.
• Measure fuel pressure and residual pressure according to the engine system.
• Inspect the external filter, fuel lines, and pressure-control components.
• Separate a pump-pressure fault from a fuel-level sender or instrument fault.
• Inspect the tank for water, rust, sediment, or deteriorated fuel.

Relay, wiring, ignition, airflow, injector, and engine-management faults can create similar symptoms. Use the service information for the exact engine code before replacing the in-tank assembly.

Installation and Final System Checks

1. Relieve fuel-system pressure and disconnect the battery.
2. Clean the access area before opening the tank.
3. Record the flange orientation, fuel-line routing, connector position, and float-arm direction.
4. Remove contamination and inspect the tank seal and locking components.
5. Install the replacement module without bending the float arm or trapping the strainer.
6. Fit a new seal and fully secure the retaining ring or flange fasteners.
7. Reconnect the lines and connector without forcing aged plastic fittings.
8. Prime the system, inspect for leaks, and measure fuel pressure.
9. Verify starting, idle, load response, residual pressure, and fuel-gauge operation.

Do not operate the electric pump dry. Correct a restricted filter, damaged connector, poor ground, or contaminated tank before returning the vehicle to service.