Where is the drain screw for the BMW 525 radiator located?
3 Answers
BMW 525 radiator drain screw is located at the bottom of the car radiator. The significance of the radiator: The significance of the BMW 5 Series radiator is to provide sufficient protection for the car, ensuring that the car does not encounter problems. Its main function is to ensure that the car's engine operates in a stable environment. In winter, it is also necessary to prevent the car radiator from freezing, hence the need for antifreeze. The impact of tap water on the radiator: Tap water contains various minerals and salts, which can easily cause corrosion and scale in the cooling system, damaging the cooling system, affecting heat dissipation efficiency, and even blocking cooling pipes, leading to a series of adverse phenomena.
After driving the BMW 525 for years, I clearly remember the location of the radiator drain plug. It's usually a small plastic or metal screw at the bottom right corner of the radiator. When I first changed the coolant, I spent a long time searching on the ground and found it hidden under a protective panel, which had to be removed first. Always ensure the engine is completely cooled for at least an hour before draining, as hot coolant spraying out is extremely dangerous. Prepare a large pan to catch the draining liquid, then slowly unscrew the plug. When refilling with new coolant, choose BMW-recommended brands mixed with distilled water to avoid air bubbles. Regular maintenance like this prevents overheating—I change it every two years to keep the system more durable.
As a beginner in DIY car repairs, I love tinkering with engines. The drain plug for the BMW 525's radiator is located at the bottom of the radiator—just peek under the car and you'll spot the screw head. Last time I worked on it, I didn't let it cool down first and ended up spraying hot fluid all over myself, nearly getting hurt. Always release the pressure by opening the cap before draining, and wear thick gloves for protection. Sometimes the plug is blocked by a shield, but a 10mm wrench can easily loosen it. For new coolant, I recommend using BMW OEM coolant mixed with distilled water in the correct ratio to avoid pipe corrosion. The tools needed are simple—just a wrench and a container. I learned from online tutorials—it’s fun and saves money, but checking the manual first is always safer.
