Q: Low coolant light coming on

asked by on

The low coolant light comes on after driving a little. The light goes off when the car isn't moving. The temperature stays constantly at the middle of the gauge.

Hi, the car most likely just a little low on coolant. Check the levels when the car is cold and add 50/50 BMW Coolant with distilled water mix until the marker is at the full line. It is not normal to add coolant to the engine because it is a closed system so there is most likely a leak somewhere. Check the hoses and the overflow tank for residue. If the issue persists, have a technician help inspect the vehicle for possible coolant leakage.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Low coolant light coming on

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: 3 error codes P1084, P2184 & P001F

Hi there, thanks for writing in. I'd be happy to help. B0174 is a lean mixture code which will require testing related to the fuel system and potential vacuum leaks. B2184 is the engine coolant temperature sensor which monitors the...

Q: What does 'Top Up Coolant' light mean?

This indicates the engine cooling system is low on coolant and will need to be topped off. The system should be inspected for leaks to ensure there are no other issues causing the engine coolant level to drop. Please note:...

Q: Battery the car runs fine when jumped if I shut it off and try to turn it back on it will not start unless jumped

During the most recent episode when the car yet again failed to start, the diagnostic would begin with testing of the battery. If you have a fully functioning charging system (you mention the alternator is new but charging system should...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...