The Mercedes-Benz M278[1] is a family of direct injected, Bi-turbocharged, V8 gasoline automotive piston engines. The M278 is derived from the company's previous M273 V8 engine, sharing its bore pitch, aluminium engine block, and Silitec aluminium/silicon low …

Oct 16, 2024 · With a focus on balancing performance, efficiency, and emissions, the M278 brought modern features like direct injection and turbocharging to Mercedes’ lineup. This engine powers many luxury sedans, SUVs, and coupes, offering smooth power delivery and respectable fuel economy for its class.

The Mercedes-Benz M278 is a 4.6-liter V8 direct-injected bi-turbo engine introduced in 2010. This member of the new engine family, which also includes the M276 V6, replaced the previous M273 V8 engines under a hood of the popular E-Class, S-Class, and GL-Class models. The M278 is based on a 4.7-liter version of the M273.

Early production model M278 are known for experiencing severe issues with elongated valve seats and damaged valve guides.

Sep 18, 2021 · Mercedes laid out some weapons from their repertoire and launched the twin-turbocharged V8 engine, the M278. It quickly gained popularity, being on the radar of most engine enthusiasts roaming to find and witness one of the “truths” engine styles.

Feb 2, 2025 · Explore common Mercedes M278 engine problems, their symptoms, and potential consequences for informed ownership decisions.

Feb 7, 2024 · In this blog post, we will explore some of the prevalent concerns associated with the Mercedes-Benz M278 engine, helping owners and enthusiasts better understand and address these challenges. 1. Oil Leaks: Engine oil leaks are a common headache for M278 owners.

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The 278.928 engine is used exclusively in vehicle type SUV. Depending on the variant, the engine meets various environmental standards, including Euro 5, Euro 6b (NEFZ) and Euro 6d-TEMP (WLTP) 36AG-AI.

Feb 16, 2025 · In this article, we will delve into the specific problems that have been identified with the M278 engine, examining the common failures, their causes, and the implications for vehicle owners.