Mercedes W207 W212 C218 400 Bare Engine 276850 276.850 333HP 89k miles, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

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

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

Mercedes W207 W212 C218 400 Bare Engine 276850 276.850 333HP is a used, complete engine block in a bare engine configuration, designed for Mercedes E-Class and CLS models. This is a solution for users who want to restore the performance of their powertrain in a controlled manner, while maintaining factory operating characteristics and a solid power reserve. By retaining the original engine architecture, this bare engine serves as a stable base for professional repair or unit replacement in cars from the 400 family.

Specifications and technical data

• SKU: A2760108312
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2760108312
• Substitutable numbers: A2760108312, A 276 010 83 12
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Engine code: 276850
• Mileage: 89 000

Technical characteristics of the unit

The presented bare engine belongs to the Engines category and is intended for Mercedes vehicles from the 400 family, used in, among others, W207, W212, and C218 bodies. The design, based on a six-cylinder V-configuration, ensures smooth operation, good flexibility, and predictable behavior under load. The use of gasoline power allows for dynamic throttle response while maintaining appropriate operating culture across the full rev range.

The bare engine version is particularly recommended in situations where the accessories (turbo, injectors, manifolds, wiring harness) remain functional and can be transferred from the previous unit. Such a solution facilitates control over the equipment configuration while allowing for the replacement of the key element – the block with the crankshaft-piston system and cylinder heads – without interfering with other systems.

Purpose and application in Mercedes vehicles

This bare engine is dedicated to Mercedes E-Class and CLS cars from the 400 family, which use the gasoline six-cylinder unit with the code matching the designation in the title. As a result, it provides a consistent service solution for users who want to maintain the original powertrain specification without the need to adapt mechanical or electronic components from outside the manufacturer's range.

In practice, this means the ability to use existing accessories, the engine control unit, and the installation, while replacing the core of the unit itself. This approach is often chosen in professional workshops, where consistency of the result, predictability of assembly, and limiting the risk of incompatibility are prioritized.

Benefits of choosing a used bare engine

A used bare engine for a Mercedes from the 400 family is a solution that allows for a significant reduction in repair costs compared to a brand-new unit, while maintaining the original design. Compared to a full overhaul of a worn-out engine, replacing it with a complete block with cylinder heads often shortens vehicle downtime and simplifies repair logistics. Additionally, preserving the factory architecture of the unit promotes seamless cooperation with existing electronics and the powertrain.

The mileage of the unit allows for assessing its service history and planning further vehicle use in an informed manner. For many users, this is a reasonable compromise between cost and expected durability, especially in premium-class cars, where a full replacement with a new engine is often economically unjustified.

Selection by VIN/OEM and technical support

When selecting a bare engine for a specific Mercedes vehicle, it is crucial to verify compatibility using the VIN and part numbers. This allows for avoiding mechanical and software compatibility issues and ensures the correct operation of all systems interacting with the powertrain. In case of doubt, it is worth seeking the help of a specialist who will compare the vehicle configuration with the offered engine.

For users who want to deepen their knowledge about the cost-effectiveness of purchasing a used powertrain unit, selection procedures, and common myths associated with such parts, an expert guide has been prepared: Why it is worth buying used gearboxes and engines – facts instead of myths. The article discusses, among other things, cost differences, good service practices, and the importance of correct identification by VIN and OEM numbers.

Expanding repairs within the powertrain

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other components from the same group, such as additional bare engines, blocks, or complete units, check the available parts in the Mercedes Engines category.

Such an approach allows for planning a more complete scope of work – from replacing the bare engine, through potential swapping of other units, to optimizing the entire powertrain based on the manufacturer's original solutions.