Hella 009107541 Engine Coolant Temperature Sensor

Engine Coolant Temperature Sensor for OE Fitment

This Hella engine coolant temperature sensor is a plugged, 4-pin NTC sensor built for 12V systems and supplied with a seal and retaining ring. It is a direct-fit cooling system sensor for vehicles that use the blue-color application, including select Audi A4, Audi A6, Volkswagen Golf, and Volkswagen Jetta models.

Key Features

• Hella Part Number 009107541
• Engine Coolant Temperature Sensor for cooling system monitoring
• NTC sensor design for temperature-based signal output
• Plugged mounting type with 4 connectors
• 12V rated voltage
• Includes seal and retaining ring
• Green sensor body with blue color application reference

Detailed Description

Hella 009107541 is an engine coolant temperature sensor used to report coolant temperature to the vehicle control system. As an NTC sensor, it changes resistance with temperature so the engine management system can read coolant conditions accurately. This matters for fuel delivery, idle control, cooling fan operation, and temperature-related diagnostics on applications such as Audi A4, Audi A6, Volkswagen Golf, Volkswagen Beetle, Volkswagen Jetta, and Volkswagen Passat.

This part cross-references Beck/Arnley 201-1757 and Delphi TS10279 for the same application. The sensor is listed with a plugged mounting style, four connectors, and a seal for proper installation at the coolant passage. Hella 009107541 is also referenced for blue-color applications, which is important when matching the correct sensor variant on the vehicle.

What It Helps Address

• Incorrect coolant temperature readings
• Check engine lights related to coolant temperature signal faults
• Hard starting or rough idle when the engine temperature signal is inaccurate
• Cooling fan behavior that does not match engine temperature
• Fuel mixture and drivability issues tied to coolant sensor input

Installation Notes and Tips

Verify the connector style, color application, and OE reference before installation. This sensor uses a plugged mounting type and includes a seal and retaining ring, so the mating surface should be clean and free of old seal material. Confirm vehicle-specific fitment for the exact model year and chassis note, especially on 1999 Volkswagen Beetle applications listed to chassis/VIN 1C-X-430 800.

• Fits 1999-2002 Volkswagen Golf, N/A
• Fits 1999 Volkswagen Jetta, N/A
• Fits 1998-1999 Volkswagen Passat, N/A
• Fits 1998 Volkswagen Beetle, N/A
• Fits 1999 Volkswagen Beetle, N/A
• Fits 1997-1999 Audi A4, N/A
• Fits 1997-1999 Audi A4 Quattro, N/A
• Fits 1998-1999 Audi A6, N/A
• Fits 1998-1999 Audi A6 Quattro, N/A
• Fits 1997-1998 Audi Cabriolet, N/A

Quality Assurance

Hella is an established automotive parts brand known for OE-style electrical and sensor components. Part number 009107541 is built to match the specified connector count, voltage rating, sensor type, and included sealing hardware for the listed applications.