M275 FUEL ISSUE PDF

A service bulletin that addresses hot start performance complaints related to winter fuel containing ethanol for specific Mercedes-Benz models with the M275 engine. The document outlines diagnostic procedures and corrective actions, including checking fault codes, assessing fuel pressure, and installing replacement parts if necessary. It includes detailed instructions, relevant part numbers, and labor operation guidelines for warranty claims. Diagnostic test results and graphs provide visual aids to support the process.