The low coolant light may indicate engine damage and costly repairs if ignored. They may run a full diagnostic to find out why the low coolant light keeps coming on and make any repairs or maintenance that are needed. To diagnose and fix your car, consult a certified technician. If the low coolant light does not go out after you have added more coolant and reset the indicator, There may be a cooling issue. What should I do if the low coolant light keeps coming on? If your engine is overheating or if the low coolant light stays on, you should take it to a mechanic. Start your car and let it idle for 10 minutes, checking the temperature gauge to stay within guidelines. This mixes the coolant and gets it to all the right places. Note: Coolant may harm humans and animals, so properly dispose of it.Ĭoolant Light After adding coolant, how long does the engine run?Īfter adding coolant, run the engine for a few minutes to circulate it. Seal the reservoir lid and mop up spills after adding coolant.Do not overfill it, since this may create difficulties.Fill the reservoir to capacity with coolant using a funnel.Carefully remove the cap with a cool engine. Open your hood and find the coolant reservoir after adding coolant.Find out which coolant to use from your owner’s handbook or an expert. First, you need to check the coolant that matches your car model or brand.If you have little knowledge or have followed our guidelines, you can easily do it at home. Now check the level it should be between the minimum and maximum indications. To get an accurate reading, clean the reservoir and gently take off the cover. Add coolant if the level drops below the minimum. The coolant reservoir is usually a clear plastic tank with minimum and maximum markings. Start the car cold to avoid opening the coolant reservoir cover. You can easily check your coolant level yourself. You can avoid these issues and increase your car’s life by monitoring the low coolant indicator. If the coolant level is low, the engine may overheat and fail. The low coolant light is an alert that keeps your engine from getting too hot. If temperatures change a lot, the coolant may expand or contract, causing the coolant level to fluctuate and the low coolant indicator to illuminate.Ĭoolant Light Why is the low coolant light important? The cooling system may leak due to old hoses and seals.Ī bad coolant sensor may report a low level even though the system has enough. There are numerous frequent causes for the low coolant indicator to illuminate.Ī coolant leak is a common cause. What are the Common reasons for the low coolant light to come on Refer to your Mercedes-Benz owner’s manual for specific instructions. Select “Reset” or “Service Reset” and confirm.
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