Hella Coolant Temperature Sensor - 6PT 009 309-781

Name: Hella Coolant Temperature Sensor - 6PT 009 309-781
Brand: Hella
SKU: qmaplmaryg
Availability: InStock

\u26A0 IMPORTANT: Please verify fitment and measurements before purchasing. Check your vehicle's s...

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Product Information

Full details

This Hella Coolant Temperature Sensor (6PT 009 309-781) is designed for vehicle owners and mechanics seeking a reliable OE-quality replacement part. Its key benefit is ensuring accurate engine temperature readings for optimal performance and preventing potential overheating issues. A caveat is the critical need to verify fitment and measurements against your specific vehicle's specifications before purchase, as variations exist. This sensor features a grey finish, bracket mounting, and includes a gasket/seal for easy installation.

All features

Model Part Number	6PT 009 309-781
Brand	Hella

Extended Product Information

FAQs

What does a coolant temperature sensor do?

It measures the temperature of the engine coolant and sends this information to the vehicle's computer (ECU). The ECU uses this data to manage fuel injection, ignition timing, and the cooling fan operation.

How do I know if my coolant temperature sensor needs replacement?

Common signs include erratic temperature gauge readings, poor fuel economy, rough idling, the check engine light illuminating, or the engine overheating. It's best to have a diagnostic scan performed.

Is this sensor compatible with my specific car model?

You must verify fitment before purchasing. Check your vehicle's make, model, year, and engine type against the compatibility list and ensure measurements match. This sensor has specific OEM cross-references.

Does this sensor come with a gasket or seal?

Yes, the product description states it comes 'with gasket/seal', which is necessary for proper installation and to prevent leaks.

What is the number of pins on this sensor?

This Hella Coolant Temperature Sensor has 2 pins.

What is the color of the sensor or its connector?

The sensor corresponds to the original part in colour grey.

Can I install this myself?

Installation requires basic mechanical knowledge and tools. If you are not comfortable working on your vehicle's cooling system, it is recommended to have it installed by a qualified mechanic.

Troubleshooting

Engine temperature gauge reads incorrectly (too high or too low)

Ensure the sensor is correctly installed and the electrical connector is securely attached. Verify that the part number matches your vehicle's requirements and consider if the sensor itself has failed.

Check Engine Light is illuminated with temperature-related codes (e.g., P0115, P0116)

Check the sensor's wiring harness for damage. If the wiring is intact, the sensor may need replacement. Ensure the correct part is installed for your vehicle.

Poor engine performance or increased fuel consumption

An inaccurate coolant temperature reading can affect engine performance. Verify the sensor is functioning correctly and is compatible with your vehicle. A faulty sensor can lead the ECU to use an incorrect fuel map.

Cooling fan not engaging or running constantly

The coolant temperature sensor provides data for fan control. If the sensor is faulty, it may not signal the ECU correctly to turn the fan on or off. Check sensor readings and ensure proper operation.

Pros and Cons

Pros

Ensures accurate engine temperature monitoring.
OE-quality manufacturing for reliability.
Includes gasket/seal for complete installation.
Direct fit replacement part.
Durable construction for longevity.

Cons

Requires careful verification of vehicle fitment and measurements.
May not be compatible with all vehicle makes and models due to variations.
Requires mechanical knowledge for proper installation.

Setup, Compatibility & Care

Setup and Installation:

Safety First: Ensure the engine is completely cool before starting.
Locate Sensor: Identify the current coolant temperature sensor, typically found on the engine block or cylinder head near the thermostat housing.
Disconnect: Carefully disconnect the electrical connector from the old sensor.
Remove Old Sensor: Using the appropriate tool (e.g., a deep socket wrench), unscrew and remove the old sensor. Be prepared for a small amount of residual coolant to spill.
Install New Sensor: Screw the new Hella sensor (with its included gasket/seal) into the mounting port. Tighten securely but do not overtighten.
Reconnect: Attach the electrical connector to the new sensor.
Refill Coolant: Top up the coolant reservoir if any was lost during the process.
Test: Start the engine and check for leaks. Monitor the temperature gauge and ensure it reads correctly.

Compatibility:

Critical Verification: It is essential to verify fitment and measurements before purchasing. Consult your vehicle's service manual or a qualified mechanic to confirm compatibility. Check that your vehicle's specifications match the compatibility list provided by the manufacturer. This part is listed as compatible with various Ford and Citroën models (e.g., Ford B-MAX, Citroën Relay III Bus), but variations exist.
OEM Cross References: This sensor corresponds to OEM part numbers such as CITROËN: 96.753.420.80 and FORD: 1 484 876, 1 540 574, 1 702 985.

Care:

This is a sealed electronic component. No specific user maintenance is required beyond ensuring a secure and clean installation.