Hella 009309331 Engine Coolant Temperature Sensor

Reliable Engine Coolant Temperature Sensor for Audi, Porsche, Volkswagen

The Hella 009309331 Engine Coolant Temperature Sensor is designed to provide accurate temperature readings essential for engine management systems. Compatible with a wide range of Audi, Porsche, and Volkswagen models, this sensor ensures optimal engine performance and efficient cooling system operation.

• Threaded end diameter: 20.00 mm for precise fitment
• Plugged mounting type with a fitting depth of 20 mm
• Equipped with 2 connectors for secure electrical connection
• Operates at a rated voltage of 12 V
• NTC sensor type for reliable temperature measurement
• Includes retaining ring and seal for leak-free installation
• Color matches original part with grey and black components

About the Hella Brand Line

The Hella brand line is known for producing high-quality automotive sensors and electrical components. This Engine Coolant Temperature Sensor from Hella is engineered to meet OEM specifications, ensuring compatibility and durability across multiple vehicle platforms including Audi, Porsche, and Volkswagen. The sensor’s design incorporates a sealed and retained mounting system to maintain integrity under various operating conditions.

Product Details and Specifications

This engine coolant temperature sensor features a 20 mm threaded end diameter and a fitting depth of 20 mm, making it suitable for precise installation in the cooling system. The sensor uses a Negative Temperature Coefficient (NTC) element to provide accurate temperature readings to the engine control unit. It includes a retaining ring and seal to prevent coolant leaks and ensure a secure fit. The sensor’s black and grey color scheme matches the original equipment, facilitating seamless replacement.

Common Applications and Issues Addressed

• Monitors engine coolant temperature for efficient engine management
• Prevents engine overheating by providing accurate temperature data
• Helps maintain optimal fuel injection and ignition timing
• Resolves erratic temperature gauge readings or warning lights
• Replaces faulty sensors causing poor engine performance or increased emissions

Installation Notes and Tips

Ensure the engine is cool before removing the old sensor to avoid burns or damage. Use the correct 20 mm threaded fitting to install the sensor securely. Verify the retaining ring and seal are properly positioned to prevent leaks. Connect the two electrical connectors firmly to maintain reliable sensor communication with the vehicle’s ECU. Compatible with models such as Audi A3, A4, A5, A6, A7, A8, Porsche 918 Spyder, Boxster, Cayenne, and Volkswagen Golf, Jetta, Tiguan, and others.

Quality Assurance and Warranty

The Hella 009309331 Engine Coolant Temperature Sensor is manufactured to meet stringent quality standards. It is tested for durability and accuracy to ensure consistent performance. While specific warranty details may vary, Hella products typically come with manufacturer-backed warranties covering defects in materials and workmanship.