Denso 475-2021 A/C Expansion Valve - Front

Reliable A/C Expansion Valve for Mercedes-Benz Models

The Denso New Expansion Valve 475-2021 is designed to regulate refrigerant flow efficiently in your vehicle's air conditioning system. Engineered as a block valve, it ensures precise control of refrigerant for optimal cooling performance in select Mercedes-Benz models.

• Type: Block valve design for consistent refrigerant flow
• Compatible with Mercedes-Benz ML55 AMG, ML320, ML350, ML430, ML500, R350, and R500
• Part number 475-2021 for accurate identification and fitment
• Part of Denso's New Expansion Valve product line, focused on HVAC flow restrictors
• GTIN: 00042511223288 for inventory and tracking

About the Denso New Expansion Valve Product Line

The New Expansion Valve line by Denso specializes in HVAC flow restrictors designed to meet the precise demands of modern automotive air conditioning systems. This product line emphasizes reliable refrigerant metering and durability, making it suitable for high-performance vehicles like the Mercedes-Benz ML and R-Class series. The 475-2021 valve exemplifies this focus by providing a block valve type that supports consistent A/C system operation.

Product Details and Functionality

The Denso 475-2021 A/C expansion valve functions as a block valve, controlling the flow of refrigerant into the evaporator. This regulation is critical for maintaining the correct pressure and temperature within the air conditioning system, ensuring efficient cooling and preventing system damage. Designed specifically for Mercedes-Benz ML55 AMG, ML320, ML350, ML430, ML500, R350, and R500 models, this valve matches OEM specifications for fit and performance.

Common Issues Addressed by This Expansion Valve

• Inconsistent cabin cooling due to improper refrigerant flow
• Air conditioning system pressure imbalances
• Reduced A/C efficiency or intermittent cooling
• Potential evaporator freezing or overheating
• System leaks or valve blockages affecting performance

Installation Notes and Tips

• Ensure compatibility with your specific Mercedes-Benz model before installation
• Follow manufacturer guidelines for refrigerant handling and system evacuation
• Inspect related A/C components for wear or damage during replacement
• Use proper tools to avoid damaging the valve or surrounding parts
• Test the A/C system thoroughly after installation to confirm proper operation

Quality Assurance and Warranty

Denso manufactures the 475-2021 expansion valve to meet strict quality standards, ensuring reliable performance and durability. While specific warranty details may vary, Denso products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or supplier for exact warranty terms.