Updated 2 August 2026
Engine Temperature Warning Light
High priority warning
An engine temperature warning light means the engine may be overheating. Continuing to drive can turn a manageable cooling-system issue into major engine damage, so this is one of the warning lights to take seriously straight away.
What should I do if my temperature warning light comes on?
Pull over safely, switch off the engine and allow it to cool — do not open the coolant cap while hot. Once cool, check whether the level is obviously low; if you cannot see a simple cause, arrange inspection before driving far again. On site, Aaron checks coolant level and condition, tests for leaks, inspects hoses, radiator and fan operation, and looks for thermostat or water-pump faults where accessible. Overheating can also indicate head-gasket concerns if the fault keeps returning — that needs honest advice before you commit to further travel. This light is high priority: call or WhatsApp Aaron from where you stopped if you are within Shropshire coverage, with the vehicle details and whether steam or smell was present. Do not keep topping up and driving hoping the problem disappears — that often makes the repair more expensive.
What to do next
Stop the vehicle safely, switch the engine off, and allow it to cool. Do not remove caps or open the cooling system while it is hot.
Mobile diagnostics nearby
ADL Mobile Mechanic covers Wem, Market Drayton, Shrewsbury, Whitchurch, Oswestry, Telford and nearby areas. On-site diagnostics help you understand the fault before parts are changed.