VW Touareg 7L Audi Q7 3.0 TDI 4X4 Automatic Gearbox KQZ 09D300039KX WARRANTY

Listing details

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

VW Touareg 7L Audi Q7 3.0 TDI 4X4 Automatic Gearbox KQZ is a complete, used automatic transmission designed for vehicles with a diesel engine and all-wheel drive. Thanks to its factory design for Audi models and compatibility with 3.0 TDI units, the gearbox ensures consistency with the original drivetrain architecture. This is a solution for users looking for a technically verified component instead of costly regeneration or purchasing a new transmission.

Specifications and technical data

• SKU: 09D300039KX
• Mark: Audi
• Condition: Used
• OEM Part Number: 09D300039KX
• Substitutable numbers: 09D300039KX, 09D 300 039 KX
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Automatic Transmission

Purpose and compatibility

The presented gearbox belongs to the Automatic transmissions category and has been designed for VAG group vehicles, in particular premium SUVs such as the Audi Q7 and the first-generation VW Touareg. The transmission design works with a 4x4 drive system, which allows for smooth and predictable torque transfer to all wheels.

The automatic operating characteristics of the gearbox are adapted to diesel engines, which translates into appropriate gear ratios and comfortable shifting across the full load range. Using this transmission to replace a worn-out component allows for restoring the proper operation of the drivetrain without interfering with the vehicle's factory configuration.

Technical and functional characteristics

The gearbox has been constructed as a fully automatic transmission, which means that gear shifting is controlled electronically and hydraulically, without driver intervention in gear selection. This type of solution ensures stable acceleration, reduces jerking, and improves driving comfort in city traffic and on long routes.

The transmission is adapted to work with diesel engines, which is important for torque characteristics and thermal loads. Properly selected gear ratios and shift logic help keep the power unit in the optimal RPM range, supporting both dynamics and economy of use.

Application in the 4x4 system

In vehicles such as the VW Touareg 7L and Audi Q7 3.0 TDI, the automatic transmission is a key element working with the all-wheel-drive system. The appropriate design of the transmission allows for effective torque distribution to the axles, which improves traction on surfaces with variable grip and vehicle stability at higher speeds.

Thanks to the factory fit for the 4x4 architecture, installing this gearbox in place of a worn-out element allows for maintaining the original operating parameters of the drivetrain, without the need to modify additional components.

Benefits of choosing a used automatic transmission

Choosing a used automatic transmission for an Audi or VW is often a cost-effective solution compared to full regeneration or purchasing a new component. A properly selected transmission allows you to:

• restore the proper operation of the drivetrain without interfering with factory design solutions,
• maintain the original operating characteristics of the diesel engine and 4x4 drive,
• reduce vehicle downtime thanks to the possibility of direct replacement of the element.

To better understand the differences between manual, automatic, and DSG transmissions and to learn practical tips on purchasing a transmission from the secondary market, it is worth reading the guide: Gearbox: manual, automatic, or DSG – common faults and a guide to buying a used gearbox.

Additionally, when operating a used transmission and other dismantled components, practical tips on maintenance and service described in the article may be helpful: How to extend the life of used car parts?.

Expanding the drivetrain in Audi

If you are planning a comprehensive repair or upgrade of the drivetrain area in your Audi and need other elements from the same group, such as additional automatic transmissions, components working with the drive, or compatible power transfer units, check the available parts in the Audi automatic transmissions category.