How to check if my Audi A6 needs a coolant flush?

I am planning to do a coolant flush on my Audi A6 but I am not sure if it is necessary. What are the signs that indicate a coolant flush is needed?

One way to check if your Audi A6 needs a coolant flush is to look at the color and level of your coolant. If it is dark or low, it is a sign that your coolant might be contaminated and needs to be flushed out.

Another sign of a need for a coolant flush is if you notice a strange odor coming from your engine or your car is overheating more frequently. This could indicate a buildup of contaminants in your coolant.

If you have recently replaced a major component in your engine, such as the water pump or radiator, it is recommended to do a coolant flush to ensure all new parts are functioning properly.