Vemo V20-77-0009 A/C Expansion Valve

VEMO A/C Expansion Valve

Restore refrigerant metering in the HVAC system with this VEMO A/C expansion valve, part number V20-77-0009. It is listed for BMW applications and is built for vehicles that use an expansion valve with O-rings.

Key Features

• Part number V20-77-0009 for direct catalog matching.
• Fits BMW HVAC systems that use an A/C expansion valve with O-rings.
• Compact housing dimensions: 83 mm high and 35 mm wide.
• Lightweight construction at 0.140 kg.
• Cross-references Dorman - HELP 38401 for the same application.

Detailed Description

The VEMO V20-77-0009 A/C expansion valve regulates refrigerant flow into the evaporator, helping the HVAC system maintain proper cooling performance. Fitment covers BMW X5, 525i, 530i, 540i, M5, Z8, Z3, 528i, 318is, 318ti, 323i, 323is, 328i, 328is, M3, 318i, and 320i applications across the listed model years. This part number V20-77-0009 is also cross-referenced to Dorman - HELP 38401 for the same application.

VEMO’s V20-77-0009 is cataloged for BMW vehicles with notes that include O-rings and, on some applications, automatic temperature controls or SEIKO compressor references. For BMW X5 and BMW 525i applications, verify the notes against the vehicle’s HVAC configuration before ordering. The part number V20-77-0009 should be matched to the original system layout and compressor specification.

What It Is Used For

• Uneven cabin cooling caused by incorrect refrigerant metering.
• Restricted A/C performance from a worn or sticking expansion valve.
• HVAC temperature control issues related to refrigerant flow regulation.
• Service replacement when the original valve no longer matches system requirements.

Installation Notes and Tips

Confirm the vehicle’s year, model, and HVAC notes before installation, especially where SEIKO compressor references are listed. Match the O-ring style and system configuration to the original part. Because fitment varies by BMW model and year, compare the existing valve and catalog notes before replacing the component.

Quality Assurance

VEMO parts are cataloged for aftermarket replacement applications and are identified by part number V20-77-0009 for accurate ordering and fitment verification.