Four Seasons 39569 A/C Expansion Valve

Four Seasons 39569 Expansion Valve Overview

Four Seasons 39569 is a block-type A/C expansion valve for R134A systems. Built from aluminum with O-ring inlet and outlet connections, it is specified for select Mercedes-Benz and INFINITI applications where precise refrigerant metering is required.

This Four Seasons Expansion Valve line focuses on OE-style HVAC flow control for service repairs and direct replacement needs. Part number 39569 is listed for multiple Mercedes-Benz CLA and GLA models, plus the INFINITI QX30, making it a targeted choice for common compact-platform A/C service work.

Key Features

• Part number: 39569
• Brand: Four Seasons Expansion Valve
• Block-type A/C expansion valve
• Aluminum construction and aluminum finish
• R134A refrigerant type
• O-ring suction and liquid connections
• Female fitting ends with no threaded connection
• 2 mounting holes
• Style: w/o solenoid
• Super heat rating: -9.0
• Tonnage: 1.5
• Meets or exceeds OEM requirements

Detailed Description

Four Seasons 39569 regulates refrigerant flow into the evaporator to help maintain proper A/C system performance. Its block-type design, aluminum body, and O-ring sealing surfaces are suited to R134A-equipped systems that use female suction and liquid connections. The valve is listed with No. 12 suction inlet and outlet thread diameters, plus No. 8 liquid inlet and No. 10 liquid outlet thread diameters, supporting accurate service matching by application.

Compatible With 2014-2019 Mercedes-Benz CLA200, 2014-2019 Mercedes-Benz CLA250, 2014-2019 Mercedes-Benz CLA45 AMG, 2015-2020 Mercedes-Benz GLA250, 2015-2019 Mercedes-Benz GLA45 AMG, 2017-2019 INFINITI QX30, and additional listed Mercedes-Benz B-Class applications. This part number 39569 also cross-references UAC EX10551C for the same application.

Common A/C Problems This Part Addresses

• Incorrect refrigerant metering at the evaporator
• Weak or inconsistent cabin cooling
• High-side or low-side pressure imbalance related to valve restriction
• A/C performance issues after compressor or evaporator service
• Expansion valve wear in R134A HVAC systems

Installation Notes and Tips

Verify the vehicle’s refrigerant type, connection style, and mounting layout before installation. This valve is listed for systems with O-ring fittings and a block-type configuration, so matching the original part shape and port arrangement is important. On 2017 Mercedes-Benz B250e applications, the fitment note specifies the valve is located on the evaporator.

Always evacuate and recharge the A/C system according to factory service procedures after replacement. Inspect seals, mating surfaces, and related HVAC components for contamination or wear before returning the system to service.

Quality Assurance

Four Seasons lists this expansion valve as meeting or exceeding OEM requirements. The part is engineered for direct-fit service on the specified Mercedes-Benz and INFINITI applications, including CLA250, GLA250, and QX30 models.