Mercedes W204 W212 Automatic Transmission 722908 722.908 2122702906 WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order. Mercedes W204 W212 Automatic Transmission 722908 722.908 2122702906 is an original, used transmission from the Automatic transmissions family, designed for Mercedes models with diesel engines. It provides a solid foundation for professional drivetrain repair, ensuring factory fitment, correct gear ratios, and predictable drivetrain behavior during daily operation.

Specifications and technical data

• SKU: A2122702906
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2122702906
• Substitutable numbers: A2122702906, A 212 270 29 06, 2122704406
• Fuel type: Diesel
• Gearbox type: Automatic
• Part type: Automatic Transmission
• Category: Automatic Transmission

Purpose and technical characteristics

The presented automatic transmission has been designed to work with Diesel engines in Mercedes W204 and W212 class vehicles. The transmission design is optimized for the high torque of diesel units, which translates into stable starting, smooth acceleration, and predictable gear downshifts across a wide range of loads. As an Automatic type transmission, it offers comfortable gear changes without driver intervention, which is particularly important in city driving and on long routes. The hydraulic and control solutions used are adapted to the specifics of the Mercedes drivetrain, allowing the transmission to work harmoniously with the vehicle's factory electronics (engine control unit, safety systems, driving modes).

Benefits of using an original automatic transmission

Using an original automatic transmission in a Mercedes W204 or W212 allows for maintaining the consistency of the entire drivetrain. Appropriate gear ratios, correct shift points, and the operating characteristics intended by the manufacturer translate into:

• stable transfer of diesel engine torque to the wheels,
• reduction of jerking during gear changes,
• better cooperation with traction control and electronic stability control systems,
• maintenance of factory fuel consumption parameters under typical operating conditions. For the user, this means predictable vehicle behavior, and for the workshop – easier diagnostics and configuration, as all key transmission operating parameters are consistent with the manufacturer's specifications. In the case of vehicles with diesel engines, this is of particular importance, as high torque requires appropriately selected clutch and gear characteristics.

Use in service and repairs of Mercedes W204 / W212

An automatic transmission of this type is often used for comprehensive drivetrain repairs when the regeneration of the existing transmission is unprofitable or technically difficult. Replacing it with an original, used unit allows for shortening vehicle downtime in the workshop and simplifies the assembly process, as mounting points, connections to the drive shaft, and interfaces with the electrical system are factory-matched. For workshops specializing in the Mercedes brand, this is a practical solution that enables high-quality service while reducing costs compared to purchasing a new transmission. A used automatic transmission can also serve as a base for further, detailed regeneration if the service center has the appropriate technical facilities.

Selection, compatibility, and technical aspects

When selecting this transmission for a specific Mercedes W204 or W212, it is crucial to verify compatibility with the vehicle configuration (type of diesel engine, equipment version, control system used). The product has a dedicated OEM part number and interchangeable numbers, which facilitates precise matching to a specific VIN in service catalogs and parts selection systems. The automatic transmission design was developed for long-term operation under variable load conditions. Properly selected transmission oil, the correct adaptation procedure after installation, and regular monitoring of operating parameters (temperature, shift time, clutch slip) allow for significantly extending the life of the system. From the user's point of view, it is important to perform professional computer diagnostics and adaptation after installation, in accordance with the vehicle manufacturer's recommendations.

Service expansion and educational materials

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Mercedes and need other components from the same group, such as a torque converter, control elements, or additional transmission sub-assemblies, check the available parts in the Mercedes automatic transmissions category. When working with automatic transmissions and optimizing service costs, it is worth using reliable technical materials. Practical tips on selecting used components, preparing them for installation, and reducing unnecessary expenses can be found in the article Proven ways to cheaper MINI car service using original components, which discusses, among other things, issues related to transmissions and their diagnostics.