This symbol is typically a warning or alert about ... you'll need to take it to the mechanic for a closer look. Oil is to your car what water is to our bodies. That means your car can get ...

One Twitter user wrote: "What does the symbol that looks like a thermometer/tree in water mean in a car?" Another said: "I'm going to just keep ignoring the squiggly lines light on my dashboard.

Car expert, Gabriel Hambleton, said: "The engine cooling warning light, resembling a thermometer over wavy lines, is one of the least recognised dashboard symbols but crucial for preventing serious ...