Nissens 999224 A/C Expansion Valve - Front

Nissens A/C Expansion Valve 999224

Nissens 999224 is a block-style A/C expansion valve built with an aluminum body and calibrated for R134A refrigerant systems. It helps regulate refrigerant flow through the HVAC circuit for BMW X5, BMW 525i, BMW 530i, BMW 540i, BMW M5, BMW Z8, BMW 528i, and Land Rover Range Rover applications.

• Block-type A/C expansion valve for refrigerant metering
• Aluminum construction for HVAC service applications
• Configured for R134A refrigerant systems
• Includes O-rings and uses a 4 O-ring sealing design
• Liquid inlet thread diameter: 0.4300
• Liquid outlet thread diameter: 0.5500
• Suction inlet thread diameter: 0.6300
• Suction outlet thread diameter: 0.7900

Fitment and Application Details

Compatible with 2003-2012 Land Rover Range Rover, front; 2000-2006 BMW X5; 2001-2006 BMW X5 with Automatic Temperature Controls; 2001-2003 BMW 525i; 2001-2003 BMW 530i; 1997-2003 BMW 540i; 2000-2003 BMW M5; 2000-2003 BMW Z8; and 1997-2000 BMW 528i. This part cross-references UAC EX10072C for the same application.

What This Part Helps Address

• Inconsistent cabin cooling performance
• Refrigerant flow restriction issues in the HVAC circuit
• Temperature control problems in the A/C system
• Expansion valve leakage at the refrigerant connections
• Service replacement needs on BMW and Land Rover HVAC systems

Installation Notes

Verify refrigerant type, port dimensions, and vehicle-specific HVAC configuration before installation. Replace worn sealing components as needed, and confirm the system is properly evacuated and recharged after service. On BMW X5 models with Automatic Temperature Controls, confirm the correct HVAC setup before ordering.

Quality Assurance

Nissens develops and manufactures thermal management components to consistent quality standards, with product engineering focused on aftermarket fit and function. Part number 999224 is built to meet the requirements of the listed BMW and Land Rover applications.