The Audi Q7 4L 3.0 TDI air conditioning compressor is an original A/C system component designed for diesel vehicles, ensuring stable air conditioning operation under demanding road conditions. A used OEM sub-assembly is a sensible choice for drivers who want to maintain the factory performance characteristics of the cabin cooling system while controlling service costs.
Specifications and technical data
- SKU: 7L6820803T-1
- Mark: Audi
- Condition: Used
- OEM Part Number: 7L6820803T
- Substitutable numbers: 7L6820803T, 7L6 820 803 T
- Fuel type: Diesel
- Category: A/C Compressors & Clutches
Purpose and Compatibility
The Audi Q7 4L 3.0 TDI air conditioning compressor has been specifically designed to work with the diesel engine in this model, ensuring proper fit with the factory engine and accessory drive components. The OEM design guarantees appropriate performance, pressure, and flow parameters within the A/C system.
By using an original compressor, the following are maintained:
- consistency with factory air conditioning control and the operating logic of engine and comfort controllers,
- proper cooperation with the compressor clutch and other components in the air conditioning compressors and clutches category,
- stable refrigerant pressure across the full operating range of the diesel engine.
Technical and Operational Characteristics
As an air conditioning system component designed for a diesel engine vehicle, the compressor is adapted to the specific operating conditions of a diesel unit: higher torque, different speed ranges, and prolonged thermal loads.
Key advantages of this sub-assembly include:
- factory mounting geometry – facilitates installation at original points on the engine block,
- performance parameters designed for Audi – ensuring appropriate cabin cooling intensity,
- compatibility with factory components (hoses, condenser, evaporator, expansion valve) in the Audi Q7 4L.
A used compressor is a solution that allows for maintaining the efficiency of the air conditioning system while reducing costs compared to a new OEM part.
Practical Application in Servicing
Replacing the air conditioning compressor in an Audi Q7 4L 3.0 TDI is a typical service operation in case of reduced cooling performance, noise from the engine accessory area, or problems with the compressor clutch engaging. Using an original, used sub-assembly allows for:
- maintaining factory A/C system parameters without the need for adapting aftermarket parts,
- reducing the risk of incompatibility with the electrical system and air conditioning control,
- maintaining predictable cabin cooling system behavior in high ambient temperatures.
Before installation, standard service procedures are recommended: checking system tightness, replacing the desiccant, and filling the system with the appropriate amount of refrigerant according to Audi's service documentation.
Benefits of Choosing an Original Used Compressor
By opting for an original Audi air conditioning compressor from the aftermarket, you gain:
- factory fit for Audi Q7 4L – no need for modifications to mounts or hoses,
- consistency with other air conditioning system components from the same design line,
- economical restoration of air conditioning functionality while maintaining OEM characteristics.
This solution is particularly beneficial for users who want to maintain high thermal comfort inside the vehicle while optimizing their repair budget.
Related Audi Air Conditioning Compressors and Clutches, and Technical Knowledge
If you are also looking for other Audi air conditioning compressors and clutches suitable for various models of this brand, check out our dedicated category: Audi air conditioning compressors and clutches. This will allow you to easily compare available solutions and select the right sub-assembly for your car.
More information on the advantages of using used, original comfort system components – such as air conditioning compressors – can be found in our blog article: used parts for Mercedes – original dismantled parts, which discusses the practical aspects of choosing premium aftermarket sub-assemblies.
