With a cold engine, it should be just at the top of a marker bar inside the filler neck. Once the cap is removed, it is possible to see the coolant inside the bottle and check its level.Ideally, this should be done only when the engine is cold, ensuring an accurate reading. Next, remove the cap from the bottle filler neck by unscrewing it counterclockwise.This will be a plastic tank with a cap on top of it. Lift the hood and locate the coolant bottle within the engine bay.Pull the hood release under the dashboard, driver’s side. How to check the coolant level on a Mercedes Benz?Ĭhecking the coolant level is similar on most Mercedes Benz vehicles, although some differences may be possible. The car will warn the driver immediately if the level falls below a certain level. Mercedes-Benz cars have a sensor that measures the coolant level within the bottle. Most systems also have a coolant bottle (overflow reservoir), which acts as a buffer that expands the coolant. There is also a thermostat, which controls coolant flow to ensure optimum engine running temperatures. When the engine coolant level is low, the water pump may not circulate coolant and cool down the engine.Ĭoolant goes through several hoses towards the radiator, which cools down and heads back to the engine to repeat the cooling process. The water pump pushes the coolant inside the engine, taking away the heat generated by combustion. This means that the engine may overheat if you continue to drive. The Check, Coolant Level message indicates that the coolant level in the radiator or coolant tank is below the minimum. The reason why you are getting Check Coolant Level on a Mercedes-Benz? Engine coolant, also called antifreeze, is essential for engine operation, as a lack of it may result in overheating. Ignoring this warning can lead to engine overheating, failure, and expensive repairs. Mercedes-Benz vehicles may display check coolant level warnings on the dashboard, which means the engine coolant level is low.
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