The typical answer is that most gasoline E350 models take about seven quarts of engine oil with a filter change, while diesel variants like the E350 Bluetec generally require more—around nine to ten quarts. Exact capacity depends on the engine variant and model year, so always verify for your specific vehicle.
Oil capacity by engine type
Below are the common configurations for the E350 lineup. Use these as a starting point, but confirm with official documentation for your exact VIN and year.
- Gasoline E350 (3.5L V6) — approximately 7 quarts (6.6 liters) of engine oil with a new filter.
- Diesel E350 Bluetec (3.0L diesel) — approximately 9 to 10 quarts (8.5 to 9.5 liters) with a new filter.
Note: Oil capacity can vary by model year, engine variant, and whether the oil filter is replaced. Always consult the owner's manual or the Mercedes-Benz Workshop Information System (WIS) for your exact figure, and use a synthetic oil that meets Mercedes-Benz specifications (commonly MB 229.5 or 229.51, with a compatible viscosity such as 0W-40 or 5W-40 depending on the model).
How to verify for your vehicle
To ensure accuracy for your VIN, check the official sources: your owner's manual, the Mercedes-Benz Workshop Information System (WIS), or your dealership’s service database. If unsure, contact a Mercedes-Benz-certified technician who can retrieve the exact specification for your model year and engine variant. After adding oil, recheck the level with the dipstick or electronic oil level monitor once the engine has cooled on a level surface.
Summary
In short: seven quarts for most gasoline E350 models, nine to ten quarts for Bluetec diesel variants, with exact figures varying by year and engine. Always verify with official MB documentation for your specific vehicle and use MB-approved synthetic oil meeting the correct specification.