Fuel Filter 3C0-919-679-A
Neglecting the fuel filter can lead to several issues, such as poor engine performance, difficulty starting, and reduced fuel efficiency. Signs of a failing filter include unusual noises from the fuel pump and a decrease in acceleration. Regular inspection and timely replacement are essential for maintaining engine health.
Choosing this OEM fuel filter with part number 3C0-919-679-A ensures a precise fit and reliable operation. Designed to withstand rigorous demands, it offers superior filtration compared to aftermarket options, reducing the risk of fuel system contamination.
Available in Stores
| Seller | Price | Action |
|---|---|---|
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Leith Volkswagen
Official Dealer
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$315 |
| Seller | Price | Action |
|---|---|---|
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Volkswagen
New
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$268 $192 | |
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Capitol Volkswagen
New
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$326 |
| Seller | Price | Action |
|---|---|---|
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Infoparts13.com.ua
Used
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$238 | |
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Ford-shop
Used
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$293 |
| Seller | Price | Action |
|---|---|---|
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Lewisville Volkswagen
New
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$278 $250 |
Vehicle Fitment
Vehicles confirmed compatible with this part
Technical Specifications
| OEM Part Number | 3C0-919-679-A |
|---|---|
| Part Type | Fuel Pump Housing / Fuel Filter Assembly |
| Location | In-tank (inside fuel tank) |
| Drive Type Compatibility | Front-Wheel Drive (FWD) |
| Fuel Type | Gasoline (Petrol) |
| Engine Fitment | 2.0L L4 1984cc; 3.6L V6 3597cc |
| Compatible Makes | Volkswagen (VW), Audi, SEAT, Škoda, Cupra |
| Dimensions | — |
| Material | — |
| Thread Size | — |
Positioned inside the fuel tank, this assembly filters contaminants from gasoline before it reaches the engine, protecting injectors and fuel system components.
Engineered to exact Volkswagen Group specifications for the Passat and CC platforms, ensuring a direct, no-modification replacement with factory-level performance.
This part number is shared across Volkswagen Group brands including VW, Audi, SEAT, Škoda, and Cupra, reflecting its broad platform compatibility.
Compatible Aftermarket Alternatives
The following aftermarket parts are confirmed direct equivalents for OEM 3C0-919-679-A, cross-referenced from major manufacturer catalogs.
| Manufacturer | Part Number | Notes | Dimensions (mm) |
|---|---|---|---|
| Vemo | V10-09-1257 | Direct OEM-spec aftermarket replacement; designed to meet Volkswagen Group quality standards. Recommended | — |
| VDO | A2C53091613Z | OEM supplier-grade replacement; VDO is a Continental brand with strong VAG fitment history. | — |
| Volkswagen OEM | 3C0919679A | Original factory part; highest confidence in fit and function for Passat and CC applications. | — |
Always verify fitment against your VIN before ordering.
How to Replace the Fuel Filter
Replacing the 3C0919679A fuel pump housing assembly is an intermediate-level task that requires working safely around a fuel system. Always depressurize the fuel system and disconnect the battery before beginning. The procedure below covers the general steps applicable to Volkswagen Passat and CC models; always cross-reference with your vehicle's specific service manual.
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Safety Preparation
Disconnect the negative terminal of the vehicle battery. Allow the engine to cool completely. Depressurize the fuel system by locating the fuel pump fuse or relay, starting the engine until it stalls, and then attempting to restart to relieve residual pressure.
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Access the Fuel Tank
Depending on your model, remove the rear seat cushion to expose the fuel pump access panel in the floor, or raise and safely support the vehicle to access the fuel tank from underneath. Remove any trim panels or covers as needed.
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Disconnect Electrical and Fuel Connections
Carefully unplug the electrical connector from the fuel pump housing. Using appropriate fuel line disconnect tools, detach the fuel supply and return lines. Have rags ready to absorb residual fuel.
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Remove the Old Fuel Pump Housing
Using a fuel pump lock ring removal tool, rotate the retaining ring counterclockwise to loosen it. Carefully lift the old fuel pump housing assembly straight up and out of the fuel tank, avoiding bending the fuel level sender float arm.
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Prepare and Install the New Assembly
Compare the new 3C0919679A assembly to the old one to confirm identical fitment. Install a new sealing ring or O-ring if included or required. Lower the new assembly into the tank, aligning the orientation tab with the notch on the tank opening.
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Secure the Retaining Ring
Thread the retaining ring clockwise by hand, then tighten with the lock ring tool to the torque specification listed in your vehicle service manual. Do not overtighten.
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Reconnect All Connections
Reattach the fuel supply and return lines, confirming each line clicks or locks securely into place. Reconnect the electrical connector until it audibly clicks.
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Test for Leaks and Verify Operation
Reinstall all removed trim panels and the battery negative terminal. Turn the ignition key to the 'ON' position without cranking to prime the fuel system, and check for leaks. Start the engine and verify normal idle and no fuel odor or visible leaks.
Signs of a Worn Part
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Engine Misfires or Hesitation
A clogged or failing fuel filter housing restricts fuel flow, causing the engine to misfire or hesitate noticeably during acceleration or under load.
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Hard Starting
Reduced fuel delivery caused by a blocked assembly can make the engine difficult to start, particularly after the vehicle has sat overnight.
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Reduced Engine Power
Insufficient fuel reaching the engine results in a noticeable loss of power and decreased fuel efficiency during normal driving.
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Engine Stalling
The engine may stall unexpectedly, especially at higher RPMs or under acceleration load, due to inadequate fuel supply from a compromised assembly.
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Check Engine Light
Fuel system pressure irregularities caused by a failing housing assembly can trigger fuel trim or fuel pressure-related diagnostic trouble codes.
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Fuel Smell or Visible Leak
A cracked or deteriorated housing or failed O-ring seal can allow fuel to leak into the tank access area, producing a noticeable fuel odor inside the cabin.
Replacement Intervals
Always consult your vehicle's owner manual for the manufacturer-specific service interval, as recommendations may vary by model year and engine configuration. Fuel quality in your region can significantly affect the actual service life of this component.
Frequently Asked Questions
Is 3C0919679A a fuel filter, a fuel pump, or both?
It is a fuel pump housing assembly — an integrated unit located inside the fuel tank that combines the housing structure and fuel filter function. It is not a standalone external fuel filter. The OEM part name per Volkswagen's catalog is 'Fuel Pump Housing.'
What vehicles is part number 3C0919679A compatible with?
It is confirmed compatible with the Volkswagen CC (2009–2017) and Volkswagen Passat (2006–2010) equipped with 2.0L L4 (1984cc) or 3.6L V6 (3597cc) gasoline engines in front-wheel-drive configuration. Always verify against your specific VIN before ordering.
Are the Vemo V10-09-1257 and VDO A2C53091613Z good alternatives to the OEM part?
Yes. Both Vemo and VDO are established Tier-1 automotive suppliers with strong histories supplying Volkswagen Group OEM and aftermarket parts. The Vemo V10-09-1257 is the recommended aftermarket alternative due to its OEM-spec design. Confirm vehicle compatibility before purchasing either part.
Can I replace just the fuel filter element inside the housing, or do I need the whole assembly?
The 3C0919679A is sold as a complete housing assembly. Whether a standalone filter element is available separately depends on the specific construction of this unit. Consult your dealership or a VAG parts specialist to confirm if a filter-only replacement is an option for your application.
Do I need any special tools to replace this assembly?
Yes. A fuel pump lock ring removal tool compatible with Volkswagen/Audi fuel tank flanges is required to remove and reinstall the retaining ring safely without damaging it. A fuel line quick-connect disconnect tool set is also strongly recommended to avoid damaging the fuel line fittings.
How do I confirm this is the correct part for my vehicle before ordering?
Use your full 17-digit VIN when ordering from a dealership or reputable OEM parts retailer. Cross-reference the part number against your vehicle's model year, engine code, and drivetrain (FWD only for this part). Aftermarket lookup tools on sites like ECS Tuning or Genuine VW Parts also allow VIN-based verification.
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