What engine does an E350 have?
Short answer: it depends on the model year and market. In the latest Mercedes-Benz E-Class, the E350 is powered by a turbocharged 2.0-liter inline-four with mild-hybrid assistance in the U.S. and many other regions; older E350 models used a 3.5-liter V6. European markets also offer diesel and plug-in hybrid variants under the E350 badge.
Beyond that, the E350 name has evolved with Mercedes’ powertrain strategy. The plug-in hybrid variant E350e combines the standard gas engine with an electric motor for higher combined output, and some markets still feature diesel options labeled E350d. To be sure of the exact engine in a given car, check the VIN, window sticker, or official Mercedes documentation for that specific model year and market.
Current and recent engine options (global view)
Below is a snapshot of the engines typically associated with the E350 in recent years, noting that exact specs can vary by year and market.
- Gasoline E350: turbocharged 2.0-liter inline-four with mild-hybrid assistance (often referred to as an EQ Boost or similar 48V system); common in U.S. and many other markets.
- E350e: plug-in hybrid version pairing the 2.0-liter turbo gas engine with an electric motor for higher combined output and some electric-only driving.
- E350d (Europe/other markets): diesel variant available in several regions, typically featuring a turbo-diesel engine; exact displacement and spec depend on the generation.
These distinctions reflect Mercedes’ move toward downsized, electrified powertrains in the E-Class while still offering traditional gasoline and diesel options where markets allow.
Historical context and what to expect by era
Engine choices have shifted across generations. Older E350 models were commonly powered by a larger petrol V6, while more recent generations emphasize turbocharged four-cylinders with mild-hybrid assist and, in some regions, plug-in or diesel variants. If you’re shopping for a specific year, the exact engine can vary even within the same model name.
To identify the engine in a given E350, refer to the vehicle’s VIN, the window sticker, or the official brochure for that model year. Dealers can confirm the precise engine type based on the VIN and trim level.
How to verify the engine in your E350
When determining the exact engine on a specific E350, use these steps:
- Check the VIN (Vehicle Identification Number) and use Mercedes’ official decoder or query with a dealer to reveal the engine code and displacement.
- Inspect the engine bay badge or the specifications listed on the window sticker and in the owner’s manual.
- Consult the official brochure or Mercedes-Benz USA/European site for the model year in question for confirmation of available engines.
Verifying the engine this way ensures you’re matching the correct powertrain to the specific E350 you’re evaluating or owning.
Summary
The E350 does not have a single, universal engine. In current production, it typically uses a turbocharged 2.0-liter inline-four with mild-hybrid assist in many markets, and the E350e adds an electric motor for plug-in hybrid capability. Older generations offered a 3.5-liter V6, and European markets have included diesel variants as well. For precise specifications, check the VIN or keluaran (official documentation) for the exact model year and market.
