Where to add engine coolant for Volkswagen Tiguan?
2 Answers
There is a knob at the bottom of the coolant reservoir. Turn it to drain the coolant inside. After draining, clean it, tighten the knob, and then add new coolant. Function of coolant: It protects the engine cooling system from rust and corrosion, effectively inhibits scale formation, prevents radiator overheating, reduces coolant evaporation, and provides lubrication for the water pump thermostat and other components. It offers long-term comprehensive protection for the radiator, can be mixed with various high-quality coolants and antifreeze that meet standards, and avoids damage to the cooling system caused by using inferior coolant. High boiling point of coolant: Coolant that meets national standards typically has a boiling point exceeding 105 degrees Celsius. Compared to water's boiling point of 100 degrees, coolant can withstand higher temperatures without boiling (overheating), to some extent meeting the cooling needs of high-load engines.
When I first started driving the Tiguan, I didn't know where to add coolant either, but I figured it out later. Open the engine hood, stand facing the engine, and look to the left front. There's a round, white, semi-transparent plastic reservoir with a thermometer symbol printed on the cap. This expansion tank is where you add the coolant. Make sure to do this when the engine is cold—just unscrew the cap and pour it in directly. There are MIN and MAX level marks on the side of the tank; fill it just below the MAX line. Remember, never use tap water instead of coolant, as it can corrode the pipes. For Volkswagen cars, you must use the pink-specific G12 or G13 coolant. If the level keeps dropping, check for leaks in the system. After adding, tighten the cap until you hear a click to ensure it's properly sealed.
