Vemo V30-72-0122 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for Mercedes-Benz

The Vemo V30-72-0122 engine coolant temperature sensor provides a direct-fit replacement for select Mercedes-Benz diesel applications. It features a 2-pin connector, M14x1.5 thread size, and a blue housing with a seal ring for a secure coolant-system connection.

Compatible With 1990-1995 Mercedes-Benz 300D, 300SD, 350SD, 350SDL, and S350 applications, this sensor is built for vehicles with air conditioning and is specified for a 130 C temperature range in the listed fitment data.

Key Features

• Brand: Vemo VEMO
• Part number: V30-72-0122
• Engine coolant temperature sensor for coolant-system monitoring
• 2-pole electrical connection
• M14x1.5 thread size
• Supplied with seal ring
• Blue sensor body
• Vehicle equipment note: for vehicles with air conditioning
• Dimensions: 52.6 mm height, 18.9 mm length, 18.9 mm width

Detailed Description

The Vemo V30-72-0122 is an engine coolant temperature sensor used to report coolant temperature to the vehicle’s control system. Accurate temperature input is important for proper engine management, especially on Mercedes-Benz diesel models where cooling-system data affects drivability and operating consistency. This V30-72-0122 sensor uses a 2-pin design and M14x1.5 thread, and the included seal ring supports a proper sealing interface at the installation point.

This part cross-references Dayco 73139 and Pioneer Automotive Industries 850001 for the same application. It is listed for Mercedes-Benz 300D, 300SD, 350SD, 350SDL, and S350 fitments, making it a focused replacement choice for owners searching for a Mercedes-Benz 300D coolant temperature sensor or a Mercedes-Benz S350 engine coolant temperature sensor.

What It Helps Address

• Incorrect coolant temperature readings
• Temperature-related drivability concerns
• Faulty sensor signal to the engine management system
• Cooling-system warning or monitoring issues
• Replacement needs for aging Mercedes-Benz diesel sensor hardware

Installation Notes and Tips

Confirm the thread size, connector style, and vehicle equipment before installation. The listed application uses a 2-pin connector and M14x1.5 thread, so matching the original sensor specification is important for proper fitment. Inspect the sealing surface and coolant condition during replacement, and verify the connector locks securely after installation.

Quality Assurance

Vemo VEMO replacement parts are cataloged with application-specific fitment data and dimensional specifications to support accurate ordering for Mercedes-Benz cooling-system service. Use the part number V30-72-0122 to verify the correct sensor against the vehicle listing before installation.