Mercedes W204 W211 W212 Automatic Gearbox 722908 722.908 2122704506 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 W211 W212 Automatic Gearbox 722908 722.908 2122704506 WARRANTY is a used, original automatic transmission from the Automatic transmissions group, designed for Mercedes vehicles with diesel engines. It is a solution for users who expect factory compatibility, predictable drivetrain performance, and reasonable repair costs compared to rebuilding or purchasing a new unit.

Specifications and technical data

• SKU: A2122702806
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2122702806
• Substitutable numbers: A2122702806, A 212 270 28 06, A2122704506, A 212 270 45 06, 2122704506, 212 270 45 06
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and technical specifications

The offered transmission belongs to the Automatic transmissions group used in mid-size and full-size Mercedes models equipped with diesel engines. The transmission design is optimized for the high torque of diesel units, ensuring smooth power delivery and stable operation under typical urban and highway driving conditions.

The automatic transmission type means that gear shifting is controlled fully electronically and hydraulically, without the driver needing to operate a clutch. This solution improves driving comfort, reduces the risk of errors resulting from incorrect gear changes, and promotes even loading of the drivetrain.

Benefits of use in Mercedes diesel vehicles

The transmission has been designed to work with diesel units, which translates into:

• gear ratios properly matched to the high torque of diesel engines,
• stable starting and acceleration at low RPMs,
• comfortable operation on long journeys, with a reduced number of unnecessary downshifts,
• increased drivetrain refinement compared to a manual transmission in similar conditions.

For the user, this means more predictable vehicle behavior, less driver fatigue in city traffic, and better utilization of the diesel engine's characteristics. A used transmission of this type is often chosen as an economical alternative to costly repairs of an existing gearbox, while maintaining factory specifications.

Selection, installation, and service aspects

Before installation, it is recommended to verify the compatibility of the transmission with the specific body and engine version, including matching the control system and accessories. In workshop practice, when replacing an automatic transmission, the following is standard procedure:

• checking the condition of the transmission oil cooling system,
• replacing the ATF oil and filter in accordance with the vehicle manufacturer's recommendations,
• checking the transmission mounts and bushings,
• adaptation or resetting of parameters in the controller, if required by the specific model.

This approach helps minimize the risk of secondary faults and ensures the most stable transmission operation possible after installation. A used automatic transmission, with proper installation and service, can provide a long period of further vehicle operation.

Practical application and selection support

Automatic transmissions used in Mercedes W204, W211, and W212 models are popular among drivers who expect comfort, smooth gear changes, and predictable vehicle behavior in daily use. Replacing the complete transmission with a verified, used unit is often a faster and more predictable solution than a multi-stage repair of an existing unit, especially in cases of advanced wear.

To better understand the differences between manual transmissions, classic automatics, and dual-clutch gearboxes, and to learn about typical failure symptoms, it is worth consulting a practical guide. The article Transmission: manual, automatic or DSG – typical faults and a guide to buying a used gearbox, which discusses, among other things, what to look for when choosing a used automatic transmission, will be helpful.

Related products from the same group

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 other automatic transmissions, compatible torque converters, or additional automatic control modules, check the available parts in the Mercedes automatic transmissions category.