Vemo V30-73-0137 HVAC Pressure Switch

Mercedes-Benz HVAC Pressure Switch V30-73-0137

The Vemo V30-73-0137 is an HVAC pressure switch built for Mercedes-Benz climate control systems that use a 4-pin connector and M12 x 1.25 male thread with seal. It is a direct-fit replacement for select Mercedes-Benz G550, G55 AMG, G500, SL500, SLR McLaren, C240, C32 AMG, and C320 applications.

Key Features

• HVAC pressure switch for air conditioning system pressure monitoring
• 4-pole electrical connection for the specified Mercedes-Benz applications
• M12 x 1.25 male thread with seal for secure installation
• Compact housing dimensions: 65 mm length, 24 mm width, 25 mm height
• Vemo V30-73-0137 replacement part for OE-style fitment
• Cross-reference part numbers include Mercedes-Benz 203 830 03 72 and 203 830 04 72

Detailed Description

VEMO V30-73-0137 is an HVAC pressure switch used in Mercedes-Benz air conditioning systems to monitor refrigerant pressure and support proper compressor control. This part is specified with a 4-pin connector, M12 x 1.25 male thread, and seal, making it a fitment-focused replacement for vehicles that require those exact connection details. The V30-73-0137 is listed for 2002-2015 Mercedes-Benz models including G550, G55 AMG, G500, SL500, SLR McLaren, C240, C32 AMG, and C320. VEMO is the product line used for OE-style replacement components, and this switch follows the dimensional and connector requirements shown in the catalog data.

This part cross-references Mercedes-Benz 203 830 03 72 and 203 830 04 72 for the same application.

What It Helps Address

• Air conditioning compressor cycling caused by incorrect pressure signal input
• HVAC system shutdown related to pressure switch failure
• Fault codes tied to refrigerant pressure monitoring circuits
• Intermittent A/C operation on Mercedes-Benz climate control systems
• Leaks at the switch interface when the original seal is worn or damaged

Installation Notes and Tips

Verify the connector style, thread size, and seal configuration before installation. This Vemo HVAC pressure switch uses a 4-pin plug and M12 x 1.25 male thread, so matching the original sensor specification is essential for proper fitment. Confirm the vehicle application against the listed Mercedes-Benz models and years before replacing the original part.

Quality Assurance

Vemo V30-73-0137 is an aftermarket HVAC pressure switch built to match the listed OE-style application requirements for Mercedes-Benz vehicles. Its compact dimensions, sealed design, and specified connector layout support accurate replacement selection for the covered models.