Mercedes R171 SLK 350 Complete Engine 272.969 272969 305HP 79k miles, WARRANTY

Description

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 R171 SLK 350 Complete Engine 272.969 272969 305HP 79k miles, WARRANTY is a petrol-powered V6 engine designed for the R171 generation SLK models. This complete engine with the M272 series code is an ideal solution for users looking for a verified, used component with stable operating parameters and sufficient power reserves for dynamic driving.

Specifications and technical data

• SKU: A2720104844-1
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2720104844
• Substitutable numbers: A2720104844, A 272 010 48 44
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Engine code: 272969
• Mileage: 79 000

Technical engine specifications

The presented engine belongs to the Engines category and is designed for petrol fuel, ensuring smooth, refined operation and excellent throttle response across the entire rev range. The V6 configuration with six cylinders promotes balanced performance, reduced vibrations, and a favorable power-to-weight ratio, which translates into noticeably improved dynamics in a lightweight roadster like the SLK R171.

The M272 family unit is a modern construction designed to combine performance with daily usability. The version used in the SLK 350 offers high power potential, allowing for efficient acceleration without the need for frequent downshifting. As a result, the engine performs well in both city driving and on the highway, while maintaining appropriate flexibility.

Application and vehicle compatibility

Mercedes R171 SLK 350 Complete Engine 272.969 272969 305HP 79k miles, WARRANTY is intended for installation in R171 generation SLK models factory-equipped with a petrol V6 engine. The engine code allows for precise identification of the unit and matching it to a specific vehicle version, which is crucial when replacing the complete powertrain.

To correctly match the engine to the car, it is recommended to verify compatibility using the VIN and compare the unit code with the one currently installed in the vehicle. This method of selection minimizes the risk of incompatibility regarding accessories, mounts, and electrical wiring, and facilitates the workshop’s work during installation.

Condition, mileage, and benefits of purchasing a used engine

The offered unit is a used component, sourced from dismantling, with documented mileage expressed in thousands of miles. This level of usage is typical for engines of this generation and allows for continued, proper operation provided that appropriate service procedures are followed after installation, such as changing the oil, filters, and checking basic seals.

Purchasing a used complete engine for the Mercedes SLK 350 is a cost-effective solution compared to rebuilding a heavily worn unit or buying a new component. A complete engine helps reduce vehicle downtime, as most key components are already assembled, which simplifies the replacement process in the workshop.

For users considering such a purchase, an expert guide has been prepared, discussing facts and myths about used powertrains, selection procedures based on VIN and OEM numbers, and sample cost calculations – details can be found in the article Why it is worth buying used gearboxes and engines – facts instead of myths.

Practical installation and maintenance tips

Before installation, it is recommended to perform a standard package of preparatory steps to maximize the unit’s potential:

• replace engine oil and oil filter with the specification recommended by the manufacturer,
• replace air and fuel filters,
• check the cooling system (leaks, condition of hoses, quality of coolant),
• verify the ignition and fuel systems for correct connections,
• check engine mounts and compatibility with the existing gearbox.

This approach helps reduce the risk of unplanned downtime after installation and makes it easier for the workshop to provide a warranty for the service performed. A well-prepared used V6 petrol engine can provide long and stable operation, provided it receives regular maintenance in accordance with the vehicle manufacturer’s recommendations.

Other Mercedes engines – expansion and modernization

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as complete powertrains, short blocks, or engine blocks, check out the available parts in the Mercedes Engines category.