Denso 471-1591 A/C Compressor

Reliable A/C Compressor for Audi Q5, S4, S5, and SQ5

The Denso 471-1591 A/C compressor is designed specifically for select Audi models, including the Q5, S4, S5, and SQ5. Engineered to work with R134a refrigerant, this compressor ensures efficient climate control performance in your vehicle's HVAC system.

• Compatible with Audi Q5, S4, S5, and SQ5 models
• Designed for R134a refrigerant systems
• Clutch maximum diameter of 125.0 mm for precise engagement
• Serpentine pulley belt type for smooth operation
• Bolt tangent mounting type for secure installation

Technical Details and Features

This Denso A/C compressor (part number 471-1591) is built to meet the specific requirements of Audi vehicles equipped with R134a refrigerant. The clutch has a maximum diameter of 125.0 mm, which provides reliable engagement and disengagement during operation. The serpentine pulley belt type is compatible with the vehicle’s existing belt system, ensuring consistent power transmission. The bolt tangent mounting type allows for a secure and stable fitment, reducing vibration and wear over time.

Applications and Common Issues Addressed

This A/C compressor is intended for use in the HVAC systems of Audi Q5, S4, S5, and SQ5 models. It helps resolve several common air conditioning problems, including:

• Loss of cooling performance due to compressor failure
• Unusual noises from worn or damaged compressor clutches
• Inconsistent clutch engagement affecting A/C operation
• Leaks or pressure issues related to compressor malfunction
• Failure to maintain proper refrigerant circulation in R134a systems

Installation Notes and Tips

When installing the Denso 471-1591 A/C compressor, ensure the vehicle is compatible with R134a refrigerant and the specified mounting type. Proper torque should be applied to the bolt tangent mounts to avoid loosening or damage. It is recommended to inspect the serpentine belt for wear and replace it if necessary to maintain optimal compressor function. Professional installation is advised to ensure system integrity and refrigerant handling compliance.

Quality Assurance and Warranty

Denso manufactures this A/C compressor to meet OEM standards for durability and performance. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Using a genuine Denso compressor like part number 471-1591 helps maintain the reliability of your Audi Q5, S4, S5, or SQ5’s HVAC system.