Vaico V10-3848 Fuel Water Separator Filter

Fuel Water Separator Filter for Audi Diesel Applications

The VAICO V10-3848 fuel water separator filter is built for select Audi diesel applications that require clean fuel delivery and water separation at the engine. With OE-style dimensions and application-specific fitment, it supports consistent filtration performance for the Audi A6 Quattro and Audi A7 Quattro listed below.

VAICO is the brand line used for OE-focused replacement parts, and this fuel water separator filter follows that approach with application-matched sizing and connector dimensions for direct replacement service.

Key Features

• Fuel water separator filter for air and fuel delivery service
• Height: 246 mm
• Body dimensions: 55 mm height, 55 mm width, and 55 mm length
• Inlet diameter: 13.4 mm
• Outlet diameter: 11.4 mm
• Inner diameter 1: 55 mm
• OE reference part number: V10-3848
• Cross-reference: Hengst H418WK
• Additional OE reference: 4G0 127 401

Detailed Description

VAICO V10-3848 is a fuel water separator filter designed for engine-mounted fuel filtration on select Audi diesel models. It is listed for 2014 Audi A6 Quattro, 2015-2016 Audi A6 Quattro, and 2016 Audi A7 Quattro, all with engine-location fitment noted in the catalog data. The compact 55 mm profile and specified inlet and outlet diameters help match the original service part dimensions for the listed applications. This part cross-references Hengst H418WK for the same application.

What This Part Helps Address

• Water contamination in diesel fuel systems
• Restricted fuel flow caused by a clogged separator element
• Fuel delivery issues related to contaminated fuel
• Engine performance problems tied to poor fuel filtration
• Service replacement needs for Audi A6 Quattro and Audi A7 Quattro fuel filtration

Installation Notes and Tips

Verify the vehicle year, model, and engine-location application before ordering. Confirm inlet and outlet diameters against the original part during service, and follow the vehicle manufacturer’s fuel system procedures when replacing the separator. For fitment, this part fits 2014 Audi A6 Quattro, engine location; fits 2015-2016 Audi A6 Quattro, engine location; and fits 2016 Audi A7 Quattro, engine location.

Quality Assurance

VAICO replacement parts are cataloged for OE-style fitment and application-specific service on European vehicles. The V10-3848 is listed with OE reference 4G0 127 401 and Hengst H418WK interchange data for identification during parts matching.