Vemo V30-77-0139 A/C Expansion Valve - Front

Mercedes-Benz A/C Expansion Valve for Front HVAC Service

The Vemo V30-77-0139 is an A/C expansion valve for Mercedes-Benz HVAC systems, built for precise refrigerant flow control in the air conditioning circuit. With compact dimensions of 85 mm length, 43 mm width, and 40 mm height, it is sized for direct replacement service on listed Mercedes-Benz applications.

Key Features

• A/C expansion valve for HVAC refrigerant metering
• Dimensions: 85 mm length, 43 mm width, 40 mm height
• Lightweight design at 0.136 kg
• Packaged size: 9 cm depth, 9.2 cm height, 4.9 cm width
• VEMO line replacement part for Mercedes-Benz climate control repair
• Cross-reference: Gates 38598

Detailed Description

Vemo V30-77-0139 is an HVAC A/C expansion valve used to regulate refrigerant flow between the high-pressure and low-pressure sides of the system. This part is listed for Mercedes-Benz ML550, R350, GL350, GL450, GL550, ML350, ML450, ML63 AMG, GL320, ML320, R320, ML500, and R63 AMG applications across model years 2006 through 2014, including front-position fitments where specified. The VEMO product line focuses on replacement components for European vehicle systems, and this valve is specified as an aftermarket service part with O-rings and expert kits included in the application notes.

This part number, V30-77-0139, also cross-references Timken 515014 for the same application. Use it when servicing Mercedes-Benz A/C systems that require accurate expansion-valve operation to maintain proper cooling performance.

What It Is Used For

• Restoring refrigerant metering in a Mercedes-Benz air conditioning system
• Addressing weak or uneven cabin cooling
• Correcting A/C performance issues caused by a restricted or worn expansion valve
• Supporting proper evaporator feed control in front HVAC circuits
• Replacing a leaking or contaminated valve during A/C service

Installation Notes and Tips

Verify the vehicle’s exact model, year, and HVAC position before ordering. Confirm the replacement valve matches the original mounting location and refrigerant circuit layout on the Mercedes-Benz ML550, R350, GL450, GL550, and related applications. During installation, inspect the surrounding A/C components for contamination, damaged seals, or debris that could affect system performance. Always evacuate and recharge the system according to factory service procedures after replacement.

Quality Assurance

Vemo supplies aftermarket replacement parts for European vehicle HVAC systems, and this component is cataloged with application-specific fitment data for Mercedes-Benz service use. Part number V30-77-0139 is listed with dimensional specifications and interchange references to support accurate ordering and identification.