Core Functions

• Coolant Level Detection: The primary function is to monitor the coolant level in the expansion tank in real time, accurately identifying low coolant conditions.
• Warning Trigger: Sends electrical signals to the vehicle’s control system when coolant is insufficient, activating the instrument panel warning light to prompt the driver for maintenance.
• System Protection: Helps prevent engine overheating caused by low coolant, avoiding damage to components like the cylinder head or water pump.

 Compatible Vehicles

Notes: This Coolant Level Sensor is model-specific and designed exclusively for Mercedes Benz 129060 300 SL and 210262 E 240. Do not use it for other models or variants to avoid issues like inaccurate level detection or failure to trigger warnings. During installation, ensure the sensor is tightly sealed with the coolant expansion tank to prevent coolant leakage, and confirm the electrical connector is properly plugged in to ensure signal transmission. Periodically check the sensor for signs of failure such as false warnings, no warning when coolant is low, or coolant leakage around the sensor, and replace it immediately if faults are found to maintain effective monitoring of the cooling system.

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