A common question many BMW owners have when it comes to general maintenance of their vehicle is when they should consider having the antifreeze or coolant replaced. Generally speaking, it’s recommended to replace the antifreeze or coolant in a vehicle after a certain amount of use. Usually this usage is measured in miles or kilometers driven.
However, if you truly want to take care of your BMW and ensure that it gets the best opportunity to last for as long as possible and hold its value through that, you should consider replacing the antifreeze and coolant, having the system completely flushed properly, twice a year.
The first time should be at the end of autumn and before winter rolls in. At this time you can have the coolant replaced with antifreeze. While essentially the same thing, they perform completely different tasks.
During the summer, the coolant helps to keep the engine from overheating. The coolant moves through the engine block and back through the radiator to disperse the heat. In the winter, the antifreeze moves through the various components of the engine block to keep sensitive components from freezing.
The second time you should replace this important fluid in your BMW is during spring. Once winter is over, it’s a good idea to have your car thoroughly serviced, including a complete radiator flush and replacement of the antifreeze with coolant.
What happens if you don’t to do this?
In most cases, nothing might happen for a while. Your BMW will continue to operate normally, but if you don’t pay attention to the level of antifreeze or coolant and there is a small leak, it could cause the engine to overheat. That can cause tremendous damage to many components, costing you thousands of dollars for repairs.
It’s just a good habit to get into. Never try to change the antifreeze or coolant yourself or flush the radiator at your own home because of the potential for environmental disasters. Always have an authorized BMW service center do the work for you.