How to Drain the Coolant in a Peugeot 408?
1 Answers
The method to drain the coolant is as follows: There is a drain screw at the bottom of the car's radiator. Simply open it to drain the coolant, which is a very simple operation. Precautions for coolant: 1. Do not add water to the coolant. When the radiator is low on coolant, adding tap water or 'purified water' has two hazards: first, it lowers the freezing point of the coolant, which can freeze and damage the engine in severe cold weather; second, it can easily cause scaling, rust, and blockage in the cooling system. 2. Be cautious about whether the replacement coolant is counterfeit. Coolant usually has color, and the darker the color, the stronger the antifreeze capability. Some unscrupulous shops add pigments to inferior coolant to make it appear more concentrated. However, when added to the radiator, due to insufficient antifreeze capability, it can cause the cooling system's circulation and thermostat to freeze. Such inferior coolant must be completely drained from the radiator before replacing it with high-quality coolant. 3. Do not attempt to mix your own coolant. Trying to save costs by mixing coolant without specialized measuring cups, thermometers, hydrometers, and other tools can lead to problems. If the concentration (specific gravity) is too low, its antifreeze capability will be insufficient, easily freezing and damaging the radiator and engine. If the concentration (specific gravity) is too high, it will reduce the radiator's cooling efficiency, causing the engine to overheat.
