Mercedes W221 S 500 4MATIC Complete Engine 273968 273.968 388HP 119k, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The warranty covers the engine itself; engine accessories are covered by a 30-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a complete engine.

The engine comes from a right-hand drive (RHD) vehicle. The wiring harness is not compatible with left-hand drive (LHD) vehicles and requires replacement or modification.

Mercedes W221 S 500 4MATIC Complete Engine 273968 273.968 388HP 119k, WARRANTY is a complete powertrain unit from the V8 family, designed for the luxury S-Class. This gasoline unit features high refinement, ensuring smooth power delivery, while the V8 configuration guarantees characteristic flexibility and torque reserves. It is a solution for users expecting a solid, proven engine for advanced repairs or professional vehicle restoration.

Specifications and technical data

• SKU: A2730104700-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2730104700
• Substitutable numbers: A2730104700, A 273 010 47 00
• Fuel type: Petrol
• Number of cylinders: 8
• Category: Engines
• Engine code: 273968
• Mileage: 119 000

Technical characteristics of the V8 unit

The presented engine belongs to the Engines category and represents a modern V8 spark-ignition design. The use of gasoline promotes smooth operation across the entire rev range, and the eight-cylinder layout allows for high power output while maintaining appropriate refinement. The engine code assigned to this unit enables precise identification in service documentation and easy matching of accessories and control systems.

A complete engine is particularly beneficial in situations where it is necessary to replace the entire powertrain instead of time-consuming repairs of individual components. This facilitates the assembly process, reduces the risk of component incompatibility, and allows for a more efficient restoration of the vehicle's full functionality.

Application in Mercedes W221 S 500 4MATIC

The unit was designed for the W221 generation S-Class in the S 500 4MATIC version, which means it is matched to the all-wheel-drive powertrain. The Complete Engine is suitable both as a base for replacing a damaged unit and for advanced renovation projects where maintaining the original vehicle characteristics is key.

The V8 configuration, combined with an automatic transmission and 4MATIC drive, ensures smooth acceleration, stable power delivery, and a comfortable ride in conditions typical for the S-Class – from city driving to highway cruising. As a result, the engine provides a solid foundation for further vehicle operation after professional installation.

Condition, mileage, and operational potential

The offered unit is used, which in practice means it comes from an operated vehicle and has documented mileage. Information about the mileage allows for a better assessment of the engine's remaining potential and helps in planning any necessary service actions before installation, such as replacing consumables or checking key components.

A gasoline engine with eight cylinders, when properly maintained, is characterized by high durability and stability of operating parameters. For workshops specializing in the Mercedes brand, this provides a good base for carrying out complex powertrain repairs in luxury vehicles.

Benefits of choosing a complete Mercedes engine

Choosing a complete engine for a Mercedes S-Class allows you to reduce the number of unknowns during repair. Instead of selecting individual elements, the mechanic works with a ready-made assembly, which:

• simplifies the diagnostic and assembly process,
• reduces the risk of accessory compatibility issues,
• speeds up the restoration of the vehicle's full functionality,
• makes it easier to plan repair costs compared to the scattered replacement of many parts.

For the user, this means a more predictable service process and the ability to maintain the characteristic driving properties of the S 500 4MATIC model. The complete powertrain is particularly recommended in cases of serious mechanical or thermal damage to the existing unit.

Mercedes engines – selection and additional information

If you are planning a complex repair or upgrade of the engine area in your Mercedes and need other elements from the same group, such as blocks, cylinder heads, or complete powertrain units, check the available parts in the Mercedes Engines category.

When planning a powertrain replacement, it is worth considering the experiences of users of other premium brands – the material describing typical problems with units in a popular competing model, which you will find in the article "Faulty BMW E90 engines: check what can ruin your budget!", may be helpful. Additionally, if you are considering the difference between buying a used part and a new replacement, you will find a practical comparison of costs and quality in the guide "New or used? A comparison of costs and quality of car parts".