Audi A6 C6 4F 3.0 TDI Allroad Automatic Gearbox JMQ 09L300040H WARRANTY

Listing details

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

Audi A6 C6 4F 3.0 TDI Allroad Automatic Gearbox JMQ is a factory-spec automatic transmission assembly designed for diesel units, providing a solid foundation for professional drivetrain repair. Thanks to a design tailored to the specifics of the diesel engine and the drivetrain of this model, the gearbox ensures predictable, smooth gear shifts and stable operation in daily use. This is a solution for users looking for a proven component instead of costly, uncertain overhauls.

Specifications and technical data

• SKU: 09L300040H
• Mark: Audi
• Condition: Used
• OEM Part Number: 09L300040H
• Substitutable numbers: 09L300040H, 09L 300 040 H, 09L300040HX, 09L 300 040 HX
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Manual Transmission

Purpose and compatibility

The presented automatic transmission is dedicated to the Audi A6 C6 4F 3.0 TDI Allroad model, which is the version with a diesel engine and a drivetrain adapted for driving in varied road conditions. The use of an automatic transmission in this drivetrain allows for comfortable, predictable acceleration and stable RPM maintenance, which is important both on the highway and in city traffic.

The selection of the gearbox for a specific car configuration should always be verified by the OEM number and gearbox code, as well as by data from the manufacturer's system or the VIN. This approach minimizes the risk of incompatibility regarding gear ratios, control systems, and ECU software.

Technical and design characteristics

The automatic transmission used in the Audi A6 C6 4F 3.0 TDI Allroad was designed for the specifics of a diesel engine, meaning it is adapted to high torque and the operating characteristics of a diesel unit. The hydraulic system and electronic control work with the engine management system, ensuring:

• smooth gear shifts during calm driving,
• efficient downshifts during dynamic acceleration,
• stable gear holding under load, e.g., while towing or driving with a full load.

A properly selected automatic transmission in this model influences the drivetrain operating culture, reduces jerking, and allows for the effective use of the diesel engine's potential while maintaining reasonable fuel consumption.

Condition, verification, and use in repairs

The offered gearbox comes from the secondary market, which allows for a significant reduction in repair costs compared to purchasing a brand-new component or a full transmission rebuild. A used element of this type is often chosen in cases of:

• mechanical failure of the existing gearbox (damage to gears, drums, clutches),
• problems with hydraulics and control systems where repair is not cost-effective,
• comprehensive drivetrain rebuild after a collision or major engine failure.

Before installation, standard workshop procedures are recommended: leak checks, verification of mounting points, inspection of electrical connectors, and the use of appropriate transmission fluid in accordance with the manufacturer's recommendations. This approach increases the chance of trouble-free operation after replacement.

Benefits of choosing a used automatic transmission

For models such as the Audi A6 C6 4F 3.0 TDI Allroad, choosing a used automatic transmission is often the most rational economic solution. It allows you to:

• reduce repair costs while maintaining the original component specification,
• avoid long-term overhauls if the time to get the car back on the road is a priority,
• maintain drivetrain consistency with factory engine control unit settings.

If you want to better understand how to safely approach purchasing components from the secondary market, it is worth reading our expert guide: Why it is worth buying used gearboxes and engines – facts instead of myths. The article discusses, among other things, selection by OEM and VIN numbers and the ratio of repair costs to vehicle value.

Support with selection and repair expansion

When selecting this gearbox, it is crucial to compare the OEM number, gearbox code, and vehicle documentation data. If in doubt, it is worth using the verification procedures by number, described in more detail in our online shopping guide: 5 ways to verify component compatibility by OEM numbers. This approach reduces the risk of installing an incorrect transmission variant.

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 housings, selectors, or mounting elements, check the available parts in the Audi Manual Transmissions category.