ECOGARD XF10323 Diesel Fuel Filter - Premium Replacement Fits Volkswagen Passat COMPATIBILITY with 2012-2015 Volkswagen Passat. HIGHLY EFFICIENT FILTERING AND WATER SEPARATION to meet modern diesels engine demands for optimum fuel flow that is free of contaminants and water. PROTECT YOUR ENGINE against damage by keeping particles away from the fuel injector or carburetor. IMPROVE ENGINE PERFORMANCE with ECOGARD Diesel Filters. A clogged or dirty diesel fuel filter can result in difficulty starting, hesitation upon accelerating, decreased fuel economy, and rough idling. PRECISE INLET/OUTLET CONNECTIONS for trouble-free installation. SPECIFICALLY ENGINEERED AND TESTED for original equipment diesel filters fit, form, and function. Meets the requirements for maintaining new vehicle warranties. Replaces: OE 7N0 127 177B.