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When Should You Replace Your Volkswagen’s Coolant Temperature Sensor?

  • September 11, 2020
  • Volkswagen Repair
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Volkswagen Coolant Temperature Gauge

Volkswagens are world-renowned for their high standards in luxury, comfort, and safety, but unfortunately, they are not infallible. Just like any other car, they occasionally will need part replacements and repairs.

Coolant temperature sensors, in particular, are quite important to maintain a smooth and worry-free driving experience. Regular replacements are necessary. One common question that Volkswagen drivers ask is when these sensors should be replaced.

Today, we are going to answer this question once and for all so you can create a maintenance schedule that keeps your German-engineered vehicle in optimal shape.

The Function and Importance of the Coolant Temperature Sensor

The coolant temperature sensor (or CTS) in a Volkswagen provides a steady stream of data to the engine control unit concerning coolant flow and temperature. This information will be sent to the temperature gauge. As a result, drivers will be able to monitor these temperatures and know when it is unsafe to drive.

A bad sensor will cause your Volkswagen to react to false data and will, in turn, deregulate several crucial functions, including fuel consumption.

Warning Signs of Coolant Temperature Sensor Failure

You should be able to recognize the signs of coolant temperature sensor failure when it happens in your Volkswagen. This will allow you to exercise proper caution when driving and know when to take it in for replacement.

One of the first things that you may notice is a decrease in gas mileage. Most drivers have a routine for fuel refills that they stick to. They know, on average, how far they can go before a trip to the gas station is necessary. Pay close attention to any change in that routine. If you find yourself having to fill up the fuel tank more often than usual, this is a warning sign that something may be wrong with your car.

A more obvious sign of coolant temperature sensor failure is the overheating of your Volkswagen’s engine. Without the sensor to give you accurate temperature data, you may push the car past its limits or be unaware of failure until the damage is more extensive. In some cases, black soot will emanate from the engine.Finally, you may notice that your Check Engine Light is illuminated. This happens for several reasons, but in conjunction with the other symptoms, a failed coolant temperature sensor is likely the culprit.

Consequences of Driving With a Failing Coolant Temperature Sensor

One tiny part of the engine cooling system, especially a sensor, may not seem important to fix right away to some drivers. However, ignoring the issue is a big mistake.

Driving with a failing sensor is unsafe and at the very least, it may result in expensive damage to other parts of your Volkswagen. When your engine overheats, it warps and breaks cylinder heads and gaskets and can completely break down your engine block.

Being without your car for a few hours may be inconvenient, but with damage this extensive, you could be without it for much longer. Save yourself the frustration and money; as soon as you recognize the warning signs, get your Volkswagen to auto experts.

Why Coolant Temperature Sensors Fail

Coolant temperature sensor failure is fairly common in Volkswagens. When the maintenance schedule for the engine cooling system is neglected, your sensor can become corroded and break down over time. That is why it’s vital that you know when these sensors should be replaced.

Recommended Replacement Time for Coolant Temperature Sensors in Volkswagen

It is recommended that you have your coolant Volkswagen Coolant Temperature Sensor Check temperature sensor replaced every 100,000 miles. This is dependent on how well you stick to your maintenance schedule. If you neglect maintenance, the sensor may fail earlier than expected.

If you suspect that your Volkswagen’s sensor is in need of replacement, the highly qualified auto technicians at Glenwood Foreign Car are happy to give your car the best quality care in the area. Our Bosch Certified Service Center is within convenient distance for drivers in the Upper Makefield Township, Yardley, Newtown, and Morrisville areas of PA.

At Glenwood Foreign Car, we pride ourselves on dealership quality service without dealership prices. Trust the automotive technicians with several decades of experience with your repair and replacement needs.

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