Motorists across the UK are being issued a stark warning about a single dashboard light that could land them with a hefty repair bill if ignored.
The £662 warning you must not ignore
Experts are urging drivers to stop their vehicle as soon as it is safe to do so if a specific warning symbol illuminates. This alert, which typically shows a red thermometer with waves beneath it, signals that the engine is overheating. Continuing to drive with this light on can transform a minor issue into a major mechanical failure.
Why your engine overheats and the immediate danger
During normal operation, a car's engine generates immense heat. The vehicle's cooling system, comprising several components, works to regulate this temperature. However, if any part of this system fails, the engine can quickly overheat. Modern cars will display the warning light, and many will also sound an alert or show a message on a central screen.
Driving even a short distance with an overheated engine can cause catastrophic damage. One of the most common and expensive consequences is a blown head gasket. According to data from the RAC, the average cost to repair this damage is around £662. In more severe cases, complete engine failure could occur, leading to replacement costs running into thousands of pounds.
What to do if the warning light flashes
If the temperature warning light comes on, follow these steps immediately:
- Signal and pull over to a safe location as soon as possible.
- Switch off the engine and turn on your hazard warning lights.
- Exit the vehicle and, if it is safe, open the bonnet to allow heat to dissipate.
- Allow the engine to cool down for at least 30 minutes before investigating further.
The RAC provides a critical safety note: never attempt to remove the radiator cap while the engine is hot. The cooling system remains under extreme pressure, and scalding hot coolant could erupt, causing serious burns.
This simple act of pulling over when a warning light appears could be the difference between a manageable repair and a financial headache running into hundreds, if not thousands, of pounds.
