Vemo V30-77-0020 A/C Expansion Valve - Front

Mercedes-Benz A/C Expansion Valve V30-77-0020

The VEMO V30-77-0020 is an A/C expansion valve for Mercedes-Benz HVAC systems, built for precise refrigerant flow control in the air conditioning circuit. It includes gaskets/seals and is listed across a wide range of Mercedes-Benz G-Class, S-Class, E-Class, C-Class, CLS, CLK, SL, and Sprinter applications.

Key Features

• VEMO V30-77-0020 A/C expansion valve for Mercedes-Benz HVAC repair
• Includes gaskets/seals for service replacement
• Dimensions: 81 mm height, 35 mm length, 52 mm width
• Weight: 0.144 kg
• Cross-reference: BEHR 351239401
• Also cross-references Rein ACX0105P for the same application

Product Details

VEMO V30-77-0020 is an aftermarket A/C expansion valve used to regulate refrigerant delivery through the evaporator circuit. The VEMO line focuses on service-ready HVAC components for Mercedes-Benz vehicles, and this part is cataloged with fitment across model years from 2000 through 2017. It is a direct replacement-style component for Mercedes-Benz G550, G63 AMG, G65 AMG, Sprinter 2500, Sprinter 3500, S550, C300, E350, CLS550, SL550, and other listed applications.

Compatible With Mercedes-Benz G550, Mercedes-Benz S600, Mercedes-Benz Sprinter 2500, and Mercedes-Benz E350 applications where the cataloged expansion valve specification matches. Part number V30-77-0020 is also associated with OE-style references used in Mercedes-Benz HVAC service.

Common Issues This Part May Address

• Weak or inconsistent cabin cooling
• Incorrect refrigerant metering at the evaporator
• A/C performance loss caused by a worn expansion valve
• HVAC service repairs requiring new seals
• Temperature fluctuation in Mercedes-Benz air conditioning systems

Installation Notes and Tips

Verify the vehicle’s year, model, and HVAC configuration against the cataloged fitment before installation. This part is listed for both N/A and Front positions depending on application, including Mercedes-Benz S600 front fitment and multiple main A/C or primary air conditioning applications. Replace the seals during service, and inspect the surrounding A/C components for contamination or restriction before reassembly.

Quality Assurance

VEMO supplies aftermarket HVAC components with application-specific cataloging for Mercedes-Benz service work. The V30-77-0020 is specified with dimensional data and seal inclusion to support accurate replacement selection for the listed vehicles.