Mercedes W124 E 260 280 Bare Engine 103.940 103940 89k, 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 W124 E 260 280 Bare Engine 103.940 is a used, original engine block from the M103 family, designed for classic W124 series models. This bare power unit provides a solid foundation for professional refurbishment or engine replacement in Mercedes vehicles, ensuring structural consistency with the factory drivetrain and allowing for further configuration of accessories according to the vehicle's requirements. By maintaining the factory engine architecture, this is an especially attractive solution for workshops specializing in the Mercedes brand and for conscious users who care about the technical correctness of repairs.

Specifications and technical data

• SKU: A1039402211
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A1039402211
• Substitutable numbers: A1039402211, A 103 940 22 11
• Fuel type: Petrol
• Number of cylinders: 6
• Category: Engines
• Mileage: 89 000

Technical characteristics of the engine block

The presented block belongs to the Engines category and represents a classic, inline six-cylinder design, valued for its smooth operation and predictable behavior under load. The unit is adapted for gasoline fuel, which facilitates integration with the factory fuel injection and ignition systems used in Mercedes W124 E 260 and E 280 models.

The six-cylinder inline configuration promotes smooth operation and thermal stability, which is important both in daily use and for any potential future modifications. The bare block allows for the individual selection of accessories (cylinder head, manifolds, auxiliary equipment) according to the requirements of a specific vehicle, which is particularly important for precise repairs and restorations of classic Mercedes cars.

Application in Mercedes W124 E 260 / E 280

Mercedes W124 E 260 280 Bare Engine 103.940 was designed as a base for installation in W124 series vehicles with six-cylinder gasoline engines. By maintaining the original block geometry and compatibility with factory mounting points, the block fits well into the existing drivetrain, minimizing the need for structural modifications.

This solution is particularly beneficial in situations where the existing engine has suffered serious mechanical damage or requires costly block repair. Using a complete block allows for:

• recreating a proper base for further cylinder head and accessory refurbishment,
• maintaining compliance with factory mounting parameters,
• reducing vehicle downtime in the workshop thanks to a ready-to-use base unit.

Benefits of choosing a used engine block

A used block from original Mercedes production is a solution that combines technical correctness with reasonable repair costs. Compared to a full rebuild of a damaged block, using a complete base often shortens work time and simplifies the service process. Additionally, maintaining the factory engine design facilitates future diagnostics and compatibility with service documentation.

For workshops and users planning a conscious repair of the power unit, an expert guide discussing facts and myths about used drivetrains will be useful – detailed information can be found in the article Why it is worth buying used gearboxes and engines – facts instead of myths. It allows for a better assessment of the profitability of installing a used block and understanding the procedures for selecting components by OEM and VIN numbers.

Practical aspects of installation and operation

The bare engine block provides a flexible base for further configuration – the workshop can transfer proven accessories from the existing unit or use refurbished components according to the adopted repair strategy. This form of delivery is particularly valued in professional service centers that want to have full control over the quality of the installed auxiliary components.

In practice, this means the possibility of:

• matching accessories to the specific equipment version of the vehicle,
• easier management of repair costs through phased work,
• maintaining consistency with the original technical specifications of the vehicle.

For users who care about shortening the car's downtime in the service center and using readily available OEM elements, a guide on the impact of parts availability on repair time may also be helpful – more information can be found in the material Availability of car parts off-the-shelf vs. repair time – how used OEM parts shorten the stay in the workshop?.

Expanding repairs within the drivetrain

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

By choosing a used block from the M103 family, you gain a solid base for further service work while maintaining the characteristic properties of Mercedes six-cylinder gasoline units. This is a solution that allows you to combine attention to the originality of the design with an effective approach to repair costs and time.