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Coolant light tiguam3/19/2024 ![]() At O'Reilly Auto Parts, we carry replacement coolant temperature sensors and switches for most vehicles, and can also test Check Engine lights for free to help you make an accurate and informed diagnosis before starting your repair. If your temperature light fails to activate, or if your dash gauge is not working, you may need to replace your coolant temperature sensor to stay aware of problems in your cooling system. If your engine is frequently overheating or using more gas than usual, this could be an indication of cooling system problems, so it's best to check your coolant level and condition to determine the source of the issue. In some cases, you may not notice any symptoms of failure, but your engine may overheat without warning because your temperature light does not activate. You should pull over immediately if the light, which is red and looks like a thermometer with waves underneath it. This may result in especially low or high coolant temperature readings, your vehicle underperforming, or your Check Engine light may come on. When you see the coolant light turn on, it means your system isn’t working or there isn’t enough fluid. With time and due to exposure to high temperatures, the coolant temperature sensor or switch may wear out and send inaccurate readings or a complete lack of signal to the ECM, gauge, or warning light. Low coolant level or air in the cooling system. ![]() Low coolant or air in the cooling system. Tiguan (PQ35) Coolant Light Flashing in Cold Weather (-10C) Jump to Latest Follow 7K views. The heater may stop working in VW Tiguan due to low coolant level or air in the cooling system, clogged heater core, bad thermostat, faulty blend door actuator, bad water pump, dirty cabin air filter, bad blower motor, or HVAC control unit malfunction. VW service tech filled up the coolant on July2022. purchased Taos 2022 high line on 31dec2021 (Canada) and I had this Engine coolant level low warning light is on dashboard. Coolant temperature sensors also deliver information to your engine control module (ECM) to prevent engine damage by engaging limp mode or making other adjustments. Light Mode We may earn a commission for products purchased through links on this page menu. naseer.aeromni said: Suspect the engine coolant is leaking. This helps prevent damage to your engine due to overheating, which may be caused by low cooling system levels, radiator or thermostat failure, and other factors. The coolant temperature sensor on your vehicle monitors the temperature of your cooling system and feeds the temperature gauge or temperature warning light on your dash.
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