Seat Leon FR III 1.8 TSI CJSA Automatic Gearbox DSG SSW 0CW300042H WARRANTY

Listing details

The gearboxes are sold with a 90-day warranty! They were tested before removal and are in full working order.

Seat Leon FR III 1.8 TSI Automatic Gearbox DSG SSW is a factory-original, used automatic transmission designed for the 1.8 TSI petrol engine in the sporty FR version. This is the ideal solution for drivers who expect the precise performance of a DSG gearbox while maintaining the original handling characteristics and dynamics of the Leon III model.

Specifications and technical data

• SKU: 0CW300042H
• Mark: Seat
• Condition: Used
• OEM Part Number: 0CW300042H
• Substitutable numbers: 0CW300042H, 0CW 300 042 H, 0CW300042HX, 0CW 300 042 HX
• Fuel type: Petrol
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and technical specifications

The presented gearbox belongs to the Automatic gearboxes category and has been specifically designed to work with the 1.8 TSI petrol engine in the third-generation Seat Leon FR version. The DSG design ensures fast, repeatable gear shifts and comfortable, smooth transitions in both city traffic and highway driving.

Automatic transmission control allows for efficient use of the petrol engine's potential, while the appropriately selected gear ratios support dynamic acceleration and stable performance at higher speeds. This solution is particularly beneficial for drivers who expect a sporty character combined with ease of operation.

Application in Seat Leon FR III 1.8 TSI

The gearbox is intended for installation in the sporty FR variant, where quick throttle response and predictable drivetrain behavior are essential. Using an original DSG automatic transmission allows for the preservation of the factory drivetrain parameters, which is important for both durability and the stability of the vehicle's electronics.

Choosing an original, used gearbox from the same model configuration reduces the risk of fitment issues, facilitates adaptation in the vehicle, and promotes seamless integration with existing control software.

Benefits of installing an original used automatic gearbox

By choosing an original gearbox from the Automatic gearboxes group, you gain a number of practical benefits:

• preservation of the factory gear-shifting characteristics typical for the FR version,
• consistency with the engine control system and driver assistance systems,
• reduced risk of incompatibility compared to replacements of uncertain origin,
• the possibility of an economical vehicle repair while maintaining the original specification.

A used DSG automatic transmission is a good choice for drivers who want to restore full drivetrain efficiency without sacrificing the factory driving character and comfort.

Condition and origin of the component

The offered gearbox comes from the Seat brand and is an original part, which is significant for the build quality and compliance with the vehicle manufacturer's requirements. As a used part, it represents a reasonable compromise between repair costs and maintaining a high level of technical fit for the specific configuration of the Leon FR III 1.8 TSI model.

For workshops and individual users, this means the possibility of performing repairs based on a component designed exactly for this drivetrain, without the need for structural modifications.

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Seat and need other components from the same group, such as complete transmissions, housings, or control units, check out the available parts in the Seat automatic gearboxes category.

Technical support and gearbox selection

When choosing a used automatic transmission, it is worth paying attention to compatibility with the engine unit, fuel type, and vehicle equipment configuration. Proper selection of the gearbox has a direct impact on the drivetrain's operating culture, component durability, and the correct functioning of electronic systems.

If you are considering different repair scenarios and want to better understand when an original used transmission is a favorable alternative to regeneration, our blog article will be helpful – Manual gearbox failures in cars – why is an original used part a more sensible choice than regeneration?. Although it concerns manual gearboxes, it clearly demonstrates the general advantages of using original used drivetrain components.