It is generally not advisable to drive a BMW or any vehicle with a coolant light on for an extended period of time. The coolant light indicates a potential issue with the cooling system, such as low coolant levels or a cooling system malfunction.
The cooling system in a car is crucial for regulating the engine temperature and preventing overheating. Driving with a coolant light on could indicate that the engine is not being properly cooled, which can lead to serious engine damage if not addressed promptly.
If the coolant light comes on while driving, it is recommended to pull over safely as soon as possible and assess the situation. Check the coolant level in the reservoir (when the engine is cool) and verify if it is within the recommended range. If the coolant level is low, it may be necessary to add more coolant or seek professional assistance to diagnose and fix any potential leaks or cooling system issues.
Continuing to drive the vehicle with a coolant light on can pose a risk of engine overheating, which may cause significant damage to the engine components, potentially resulting in costly repairs or engine failure. Therefore, it is best to address the coolant issue promptly and avoid driving the vehicle for an extended period of time until the problem is resolved.