Dashboard warning light

The “Low coolant level” light on the dashboard

Yellow lightDon’t put off the repair

The coolant in the expansion tank is low. If you don’t top it up, the engine will overheat.

Low coolant levelYellow light · Don’t put off the repair

Tap the light to turn it on or off, just like on the dashboard.

What you can do yourself

  1. If the temperature gauge is rising or the symbol is red, stop and switch off the engine, as with overheating.
  2. With the engine cold, open the tank and add the same type of coolant until the level is between MIN and MAX. Don’t open it hot — steam will scald you.
  3. If the level drops again, look for a leak: hoses, radiator, water pump, heater core.

Stop and don’t drive on if:

  • The Check Engine light is flashing
  • The temperature gauge is in the red or the overheating light is on
  • The red oil pressure light is on
  • Smoke from under the bonnet, a burning or petrol smell
  • Strong jerking, knocking from the engine, or the car barely moves

The description comes from the AvtoElektrik PRO app.

Oleg’s tip: the colour of the symbol tells you how urgent it is

For example: a red oil pressure or overheating light — stop straight away and switch the engine off. A yellow Check Engine light with the engine running smoothly — drive on and get a diagnosis.

Need a mechanic’s help?

Couldn’t fix it yourself? Oleg, an auto electrician, does computer diagnostics and repairs: he comes out anywhere in Almaty or sees you at his workshop.

Want to figure it out yourself?

Oleg’s free course “Car electrics for drivers”: fuses, the battery, dashboard lights — understand it and check it yourself.

Car electrics for drivers course →

Error codes that come with this light

A scanner shows the exact cause. Tap a code to see its meaning, causes and what to check yourself.

Other lights of this colour

All dashboard warning lights →

Who keeps this reference

The reference is kept by Oleg Dmitriev, an auto electrician from Almaty with 26 years of experience: computer diagnostics of cars and trucks, repair of control units (ECUs). Can’t find the cause? Message him.