Hella 358058121 Engine Coolant Temperature Sensor for Jaguar and Land Rover

The Hella 358058121 Engine Coolant Temperature Sensor is a precision-engineered replacement component designed specifically for Jaguar and Land Rover vehicles. This sensor plays a critical role in monitoring your engine's coolant temperature, providing the engine control unit with accurate temperature data to optimize fuel injection, ignition timing, and overall engine performance.

Key Features:

• Direct replacement for OEM part numbers LNA1600AA and 5S1517
• Engineered to OEM specifications for reliable, accurate temperature readings
• M12 thread size for proper fitment
• Compact dimensions: 1.3" x 1.3" x 1.3"
• Lightweight design at just 0.057 lbs
• Temperature-dependent resistance sensor technology
• New, genuine Hella component with no remanufactured parts

Function and Benefits:

This sensor uses a temperature-dependent resistor (thermistor) that changes resistance based on coolant temperature. When the engine is cold, the sensor exhibits high resistance; as the engine warms up, resistance decreases. The engine control unit evaluates these voltage changes to adjust fuel mixture and timing for optimal performance, fuel economy, and emissions control. A properly functioning coolant temperature sensor prevents overheating, improves cold-start performance, and ensures your engine operates within its optimal temperature range.

Signs of a Failing Sensor:

Common symptoms include inaccurate or fluctuating temperature gauge readings, engine overheating, poor fuel economy, rough idle when cold, and illuminated check engine light with diagnostic trouble codes P0115, P0116, P0117, or P0118.